diff --git a/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/App.kt b/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/App.kt
index e081be338..c2a0a7c5e 100644
--- a/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/App.kt
+++ b/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/App.kt
@@ -16,6 +16,8 @@ import com.tencent.iot.explorer.link.core.auth.socket.callback.PayloadMessageCal
 import com.tencent.iot.explorer.link.core.auth.util.Weak
 import com.tencent.iot.explorer.link.demo.common.log.L
 import com.tencent.iot.explorer.link.core.link.entity.TRTCParamsEntity
+import com.tencent.iot.explorer.link.demo.common.log.L.ld
+import com.tencent.iot.explorer.link.demo.common.log.L.le
 import com.tencent.iot.explorer.link.demo.rtc.TRTCSdkDemoSessionManager
 import com.tencent.iot.explorer.link.rtc.model.*
 import com.tencent.iot.explorer.link.rtc.ui.audiocall.TRTCAudioCallActivity
@@ -56,7 +58,7 @@ class App : Application(), PayloadMessageCallback {
         IoTAuth.init(APP_KEY, APP_SECRET)
         IoTAuth.addLoginExpiredListener(object : LoginExpiredListener {
             override fun expired(user: User) {
-                L.d("用户登录过期")
+                ld { "用户登录过期" }
             }
         })
         IoTAuth.registerSharedBugly(this) //接入共享式bugly
@@ -83,7 +85,9 @@ class App : Application(), PayloadMessageCallback {
     private fun trtcCallDevice(callingType: Int) {
         IoTAuth.deviceImpl.trtcCallDevice(data.callingDeviceId, object: MyCallback {
             override fun fail(msg: String?, reqCode: Int) {
-                if (msg != null) L.e(msg)
+                msg?.let {
+                    le { it }
+                }
             }
 
             override fun success(response: BaseResponse, reqCode: Int) {
diff --git a/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/BaseActivity.kt b/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/BaseActivity.kt
index 14b09ad5e..3c4526fca 100644
--- a/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/BaseActivity.kt
+++ b/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/BaseActivity.kt
@@ -10,7 +10,7 @@ import android.widget.Toast
 import androidx.appcompat.app.AppCompatActivity
 import androidx.core.app.ActivityCompat
 import androidx.viewbinding.ViewBinding
-import com.tencent.iot.explorer.link.demo.common.log.L
+import com.tencent.iot.explorer.link.demo.common.log.L.le
 import com.tencent.iot.explorer.link.demo.common.util.Watermark
 import com.tencent.iot.explorer.link.demo.core.activity.MainActivity
 import com.tencent.xnet.XP2P
@@ -78,10 +78,10 @@ abstract class BaseActivity<VB : ViewBinding> : AppCompatActivity() {
     protected fun checkPermissions(permissions: Array<String>): Boolean {
         for (p in permissions) {
             if (ActivityCompat.checkSelfPermission(this, p) == PackageManager.PERMISSION_DENIED) {
-                L.e(p + "被拒绝")
+                le { "${p}被拒绝" }
                 return false
             }
-            L.e(p + "已经申请成功")
+            le { p + "已经申请成功" }
         }
         return true
     }
diff --git a/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/common/log/L.kt b/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/common/log/L.kt
index 668c8328d..778d05fb2 100644
--- a/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/common/log/L.kt
+++ b/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/common/log/L.kt
@@ -4,37 +4,107 @@ import android.util.Log
 
 internal object L {
 
+    private const val DEFAULT_TAG = "demo"
+
     var isLog = false
+    var LOG_LEVEL           = 3 // 允许输出log的级别（1：输出所有日志， 6：不输出日志）
+    const val LEVEL_VERBOSE = 1 // 日志输出级别 V
+    const val LEVEL_INFO    = 2 // 日志输出级别 I
+    const val LEVEL_DEBUG   = 3 // 日志输出级别 D
+    const val LEVEL_WARN    = 4 // 日志输出级别 W
+    const val LEVEL_ERROR   = 5 // 日志输出级别 E
+    const val LEVEL_NONE    = 6 // 不输出日志
 
-    private const val DEFAULT_TAG = "demo"
 
-    fun e(msg: String) {
-        e(DEFAULT_TAG, msg)
+    fun e(msgBuilder: () -> String) {
+        e({ DEFAULT_TAG }, msgBuilder)
+    }
+
+    fun e(tagBuilder: () -> String, msgBuilder: () -> String) {
+        if (isLog && LEVEL_ERROR >= LOG_LEVEL) {
+            Log.e(tagBuilder(), msgBuilder())
+        }
+    }
+
+    fun d(msgBuilder: () -> String) {
+        d({ DEFAULT_TAG }, msgBuilder)
+    }
+
+    fun d(tagBuilder: () -> String, msgBuilder: () -> String) {
+        if (isLog && LEVEL_DEBUG >= LOG_LEVEL) {
+            Log.d(tagBuilder(), msgBuilder())
+        }
+    }
+
+    fun i(msgBuilder: () -> String) {
+        i({ DEFAULT_TAG }, msgBuilder)
+    }
+
+    fun i(tagBuilder: () -> String, msgBuilder: () -> String) {
+        if (isLog && LEVEL_INFO >= LOG_LEVEL) {
+            Log.i(tagBuilder(), msgBuilder())
+        }
+    }
+
+    inline fun <reified T> T.lv(msgBuilder: () -> String) {
+        lv(tagBuilder = { T::class.simpleName ?: DEFAULT_TAG }, msgBuilder = msgBuilder)
+    }
+
+    inline fun <reified T> T.lv(tagBuilder: () -> String, msgBuilder: () -> String) {
+        if (isLog && LEVEL_VERBOSE >= LOG_LEVEL) {
+            Log.v(tagBuilder(), msgBuilder())
+        }
+    }
+
+    inline fun <reified T> T.li(msgBuilder: () -> String) {
+        li(tagBuilder = { T::class.simpleName ?: DEFAULT_TAG }, msgBuilder = msgBuilder)
+    }
+
+    inline fun <reified T> T.li(tagBuilder: () -> String, msgBuilder: () -> String) {
+        if (isLog && LEVEL_INFO >= LOG_LEVEL) {
+            Log.i(tagBuilder(), msgBuilder())
+        }
+    }
+
+    inline fun <reified T> T.ld(msgBuilder: () -> String) {
+        ld(tagBuilder = { T::class.simpleName ?: DEFAULT_TAG }, msgBuilder = msgBuilder)
     }
 
-    fun e(tag: String, msg: String) {
-        if (isLog) {
-            Log.e(tag, msg)
+    inline fun <reified T> T.ld(tagBuilder: () -> String, msgBuilder: () -> String) {
+        if (isLog && LEVEL_DEBUG >= LOG_LEVEL) {
+            Log.d(tagBuilder(), msgBuilder())
         }
     }
 
-    fun d(msg: String) {
-        d(DEFAULT_TAG, msg)
+    inline fun <reified T> T.lw(msgBuilder: () -> String) {
+        lw(tagBuilder = { T::class.simpleName ?: DEFAULT_TAG }, msgBuilder = msgBuilder)
     }
 
-    fun d(tag: String, msg: String) {
-        if (isLog) {
-            Log.d(tag, msg)
+    inline fun <reified T> T.lw(msgBuilder: () -> String, throwable: Throwable? = null) {
+        lw(tagBuilder = { T::class.simpleName ?: DEFAULT_TAG }, msgBuilder = msgBuilder, throwable)
+    }
+
+    inline fun <reified T> T.lw(tagBuilder: () -> String, msgBuilder: () -> String, throwable: Throwable? = null) {
+        if (isLog && LEVEL_WARN >= LOG_LEVEL) {
+            throwable?.let {
+                Log.w(tagBuilder(), msgBuilder())
+            } ?: Log.w(tagBuilder(), msgBuilder(), throwable)
         }
     }
 
-    fun i(msg: String) {
-        i(DEFAULT_TAG, msg)
+    inline fun <reified T> T.le(msgBuilder: () -> String) {
+        le(tagBuilder = { T::class.simpleName ?: DEFAULT_TAG }, msgBuilder = msgBuilder)
+    }
+
+    inline fun <reified T> T.le(msgBuilder: () -> String, throwable: Throwable? = null) {
+        le(tagBuilder = { T::class.simpleName ?: DEFAULT_TAG }, msgBuilder = msgBuilder, throwable)
     }
 
-    fun i(tag: String, msg: String) {
-        if (isLog) {
-            Log.i(tag, msg)
+    inline fun <reified T> T.le(tagBuilder: () -> String, msgBuilder: () -> String, throwable: Throwable? = null) {
+        if (isLog && LEVEL_ERROR >= LOG_LEVEL) {
+            throwable?.let {
+                Log.e(tagBuilder(), msgBuilder())
+            } ?: Log.e(tagBuilder(), msgBuilder(), throwable)
         }
     }
 
diff --git a/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/common/util/LogcatHelper.java b/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/common/util/LogcatHelper.java
index 2c724b9a7..ea2a7cf8a 100644
--- a/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/common/util/LogcatHelper.java
+++ b/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/common/util/LogcatHelper.java
@@ -3,6 +3,9 @@
 import android.content.Context;
 import android.os.Environment;
 import android.util.Log;
+
+import com.tencent.iot.explorer.link.demo.common.log.L;
+
 import java.io.BufferedReader;
 import java.io.File;
 import java.io.FileNotFoundException;
@@ -30,12 +33,12 @@ public void init(Context context) {
         File file = new File(PATH_LOGCAT);
         if (!file.exists()) {
             if (file.mkdirs()) {
-                Log.e(TAG, "创建日志目录成功，目录为：" + PATH_LOGCAT);
+                L.INSTANCE.e(() -> "创建日志目录成功，目录为：" + PATH_LOGCAT);
             } else {
-                Log.e(TAG, "创建日志目录失败");
+                L.INSTANCE.e(() -> "创建日志目录失败");
             }
         }else {
-            Log.e(TAG, "日志目录已存在，目录为：" + PATH_LOGCAT);
+            L.INSTANCE.e(() -> "日志目录已存在，目录为：" + PATH_LOGCAT);
         }
     }
 
diff --git a/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/activity/AddFamilyActivity.kt b/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/activity/AddFamilyActivity.kt
index b8fd751c8..a10652484 100644
--- a/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/activity/AddFamilyActivity.kt
+++ b/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/activity/AddFamilyActivity.kt
@@ -36,7 +36,7 @@ class AddFamilyActivity : BaseActivity<ActivityAddFamilyBinding>() {
         }
         IoTAuth.familyImpl.createFamily(familyName, familyAddress, object : MyCallback {
             override fun fail(msg: String?, reqCode: Int) {
-                L.e(msg ?: "")
+                L.e { msg ?: "" }
             }
 
             override fun success(response: BaseResponse, reqCode: Int) {
diff --git a/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/activity/AddRoomActivity.kt b/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/activity/AddRoomActivity.kt
index 08104ca26..e9322621b 100644
--- a/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/activity/AddRoomActivity.kt
+++ b/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/activity/AddRoomActivity.kt
@@ -37,7 +37,7 @@ class AddRoomActivity : BaseActivity<ActivityAddRoomBinding>(), MyCallback {
     }
 
     override fun fail(msg: String?, reqCode: Int) {
-        L.e(msg ?: "")
+        L.e { msg ?: "" }
     }
 
     override fun success(response: BaseResponse, reqCode: Int) {
diff --git a/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/activity/AddTimingProjectActivity.kt b/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/activity/AddTimingProjectActivity.kt
index 7cb344b60..002bc9541 100644
--- a/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/activity/AddTimingProjectActivity.kt
+++ b/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/activity/AddTimingProjectActivity.kt
@@ -178,7 +178,7 @@ class AddTimingProjectActivity : BaseActivity<ActivityAddTimingProjectBinding>()
     }
 
     override fun fail(msg: String?, reqCode: Int) {
-        L.e(msg ?: "")
+        L.e { msg ?: "" }
     }
 
     override fun success(response: BaseResponse, reqCode: Int) {
diff --git a/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/activity/BindMobilePhoneActivity.kt b/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/activity/BindMobilePhoneActivity.kt
index 7d43697a4..01e541d7c 100644
--- a/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/activity/BindMobilePhoneActivity.kt
+++ b/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/activity/BindMobilePhoneActivity.kt
@@ -35,7 +35,7 @@ class BindMobilePhoneActivity : BaseActivity<ActivityBindMobilePhoneBinding>() {
         }
         IoTAuth.userImpl.sendBindPhoneCode(countryCode, account, object : MyCallback {
             override fun fail(msg: String?, reqCode: Int) {
-                L.d(msg ?: "")
+                L.d { msg ?: "" }
             }
 
             override fun success(response: BaseResponse, reqCode: Int) {
@@ -57,7 +57,7 @@ class BindMobilePhoneActivity : BaseActivity<ActivityBindMobilePhoneBinding>() {
         }
         IoTAuth.userImpl.checkBindPhoneCode(countryCode, account, code, object : MyCallback {
             override fun fail(msg: String?, reqCode: Int) {
-                L.d(msg ?: "")
+                L.d { msg ?: "" }
             }
 
             override fun success(response: BaseResponse, reqCode: Int) {
@@ -73,7 +73,7 @@ class BindMobilePhoneActivity : BaseActivity<ActivityBindMobilePhoneBinding>() {
     private fun bindPhone() {
         IoTAuth.userImpl.bindPhone(countryCode, account, code, object : MyCallback {
             override fun fail(msg: String?, reqCode: Int) {
-                L.d(msg ?: "")
+                L.d { msg ?: "" }
             }
 
             override fun success(response: BaseResponse, reqCode: Int) {
diff --git a/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/activity/ConnectDeviceActivity.kt b/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/activity/ConnectDeviceActivity.kt
index acab4ab5e..c297674be 100644
--- a/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/activity/ConnectDeviceActivity.kt
+++ b/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/activity/ConnectDeviceActivity.kt
@@ -66,7 +66,7 @@ class ConnectDeviceActivity : BaseActivity<ActivityConnectDeviceBinding>() {
     override fun onResume() {
         super.onResume()
         (applicationContext.getSystemService(Context.WIFI_SERVICE) as? WifiManager)?.connectionInfo?.let {
-            L.d("当前WIFI名：${it.ssid}")
+            L.d { "当前WIFI名：${it.ssid}" }
             var ssidName = it.ssid.replace("\"", "")
 
             with(binding) {
@@ -187,7 +187,7 @@ class ConnectDeviceActivity : BaseActivity<ActivityConnectDeviceBinding>() {
         override fun onSuccess(deviceInfo: DeviceInfo) {
             this@ConnectDeviceActivity.deviceInfo = deviceInfo
             this.onStep(SoftAPStep.STEP_DEVICE_BOUND)
-            L.e("开始绑定设备")
+            L.e { "开始绑定设备" }
         }
 
         override fun reconnectedSuccess(deviceInfo: DeviceInfo) {
diff --git a/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/activity/ControlPanelActivity.kt b/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/activity/ControlPanelActivity.kt
index cd7d874b7..95abc61df 100644
--- a/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/activity/ControlPanelActivity.kt
+++ b/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/activity/ControlPanelActivity.kt
@@ -33,6 +33,7 @@ import com.tencent.iot.explorer.link.demo.core.popup.EditPopupWindow
 import com.tencent.iot.explorer.link.demo.core.popup.EnumPopupWindow
 import com.tencent.iot.explorer.link.demo.core.popup.NumberPopupWindow
 import com.tencent.iot.explorer.link.demo.common.customView.MyDivider
+import com.tencent.iot.explorer.link.demo.common.log.L.ld
 import com.tencent.iot.explorer.link.demo.databinding.ActivityControlPanelBinding
 import com.tencent.iot.explorer.link.rtc.model.RoomKey
 import com.tencent.iot.explorer.link.rtc.model.TRTCUIManager
@@ -185,7 +186,7 @@ class ControlPanelActivity : BaseActivity<ActivityControlPanelBinding>(), Contro
      * 控制设备
      */
     private fun controlDevice(id: String, value: String) {
-        L.d("上报数据:id=$id value=$value")
+        L.d { "上报数据:id=$id value=$value" }
         var data = "{\"$id\":\"$value\"}"
         if (id == TRTC_VIDEO_CALL_STATUS || id == TRTC_AUDIO_CALL_STATUS) { //如果点击选择的是trtc设备的呼叫状态
             if (value == "1") { //并且状态值为1，代表应用正在call设备
@@ -198,11 +199,11 @@ class ControlPanelActivity : BaseActivity<ActivityControlPanelBinding>(), Contro
             IoTAuth.deviceImpl.controlDevice(it.ProductId, it.DeviceName, data,
                     object : MyCallback {
                         override fun fail(msg: String?, reqCode: Int) {
-                            L.e(msg ?: "")
+                            L.e { msg ?: "" }
                         }
 
                         override fun success(response: BaseResponse, reqCode: Int) {
-                            L.e(response.msg)
+                            L.e { response.msg }
                         }
                     })
         }
@@ -217,7 +218,7 @@ class ControlPanelActivity : BaseActivity<ActivityControlPanelBinding>(), Contro
             IoTAuth.deviceImpl.modifyDeviceAlias(it.ProductId, it.getAlias(), entity.value,
                     object : MyCallback {
                         override fun fail(msg: String?, reqCode: Int) {
-                            L.e(msg ?: "")
+                            L.e { msg ?: "" }
                         }
 
                         override fun success(response: BaseResponse, reqCode: Int) {
@@ -405,7 +406,7 @@ class ControlPanelActivity : BaseActivity<ActivityControlPanelBinding>(), Contro
      * 设备监听成功回调（内部解析成功）
      */
     override fun success(payload: Payload) {
-        L.e("Payoad", payload.toString())
+        L.e({ "Payoad" }, { payload.toString() })
         JSON.parseObject(payload.data).run {
             keys.forEachIndexed { _, id ->
                 run setData@{
@@ -425,15 +426,15 @@ class ControlPanelActivity : BaseActivity<ActivityControlPanelBinding>(), Contro
      * 设备监听成功回调（内部解析失败）
      */
     override fun unknown(json: String, errorMessage: String) {
-        L.e("unknown-json", json)
-        L.e("unknown-errorMessage", errorMessage)
+        L.e({ "unknown-json" }, { json })
+        L.e({ "unknown-errorMessage" }, { errorMessage })
     }
 
     /**
      * 面板数据返回成功
      */
     override fun success(panelList: List<ControlPanel>) {
-        L.d("面板数据返回成功", JsonManager.toJson(panelList))
+        L.d({ "面板数据返回成功" }, { JsonManager.toJson(panelList) })
         runOnUiThread {
             this.panelList.addAll(panelList)
             showTimingProject()
@@ -446,14 +447,14 @@ class ControlPanelActivity : BaseActivity<ActivityControlPanelBinding>(), Contro
      * 面板数据更新时
      */
     override fun refresh() {
-        L.e("面板数据更新时 refresh()")
+        L.e { "面板数据更新时 refresh()" }
         runOnUiThread {
             adapter.notifyDataSetChanged()
         }
     }
 
     override fun fail(msg: String) {
-        L.d(TAG, msg)
+        ld { msg }
     }
 
     override fun onBackPressed() {
diff --git a/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/activity/FamilyActivity.kt b/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/activity/FamilyActivity.kt
index ed9a16890..61cddb3a5 100644
--- a/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/activity/FamilyActivity.kt
+++ b/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/activity/FamilyActivity.kt
@@ -153,7 +153,7 @@ class FamilyActivity : BaseActivity<ActivityFamilyBinding>(), MyCallback {
     }
 
     override fun fail(msg: String?, reqCode: Int) {
-        L.d(msg ?: "")
+        L.d { msg ?: "" }
     }
 
     override fun success(response: BaseResponse, reqCode: Int) {
diff --git a/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/activity/FamilyListActivity.kt b/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/activity/FamilyListActivity.kt
index 7c355eb7f..de191e78e 100644
--- a/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/activity/FamilyListActivity.kt
+++ b/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/activity/FamilyListActivity.kt
@@ -67,14 +67,14 @@ class FamilyListActivity : BaseActivity<ActivityFamilyListBinding>() {
     private fun refreshFamilyList() {
         IoTAuth.familyImpl.familyList(0, object : MyCallback {
             override fun fail(msg: String?, reqCode: Int) {
-                L.e(msg ?: "")
+                L.e { msg ?: "" }
             }
 
             override fun success(response: BaseResponse, reqCode: Int) {
                 if (response.isSuccess()) {
                     IoTAuth.familyList.clear()
                     response.parse(FamilyListResponse::class.java)?.run {
-                        L.e("家庭列表：${JsonManager.toJson(FamilyList)}")
+                        L.e { "家庭列表：${JsonManager.toJson(FamilyList)}" }
                         IoTAuth.familyList.addAll(FamilyList)
                         App.data.getCurrentFamily()
                         showFamilyList()
diff --git a/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/activity/FeedbackActivity.kt b/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/activity/FeedbackActivity.kt
index 2d6050d82..60104bb4a 100644
--- a/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/activity/FeedbackActivity.kt
+++ b/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/activity/FeedbackActivity.kt
@@ -74,7 +74,7 @@ class FeedbackActivity : BaseActivity<ActivityFeedbackBinding>(), MyCallback {
     }
 
     override fun fail(msg: String?, reqCode: Int) {
-        L.e(msg ?: "")
+        L.e { msg ?: "" }
     }
 
     override fun success(response: BaseResponse, reqCode: Int) {
diff --git a/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/activity/InviteMemberActivity.kt b/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/activity/InviteMemberActivity.kt
index 82769e10f..89ea9a0fc 100644
--- a/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/activity/InviteMemberActivity.kt
+++ b/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/activity/InviteMemberActivity.kt
@@ -64,7 +64,7 @@ class InviteMemberActivity : BaseActivity<ActivityInviteMemberBinding>(), MyCall
     }
 
     override fun fail(msg: String?, reqCode: Int) {
-        L.e(msg ?: "")
+        L.e { msg ?: "" }
     }
 
     override fun success(response: BaseResponse, reqCode: Int) {
diff --git a/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/activity/MemberActivity.kt b/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/activity/MemberActivity.kt
index 164e55445..d52e5bd93 100644
--- a/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/activity/MemberActivity.kt
+++ b/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/activity/MemberActivity.kt
@@ -99,7 +99,7 @@ class MemberActivity : BaseActivity<ActivityMemberBinding>(), MyCallback {
     }
 
     override fun fail(msg: String?, reqCode: Int) {
-        L.e(msg ?: "")
+        L.e { msg ?: "" }
     }
 
     override fun success(response: BaseResponse, reqCode: Int) {
diff --git a/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/activity/MessageActivity.kt b/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/activity/MessageActivity.kt
index 1762acf24..c3863a74d 100644
--- a/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/activity/MessageActivity.kt
+++ b/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/activity/MessageActivity.kt
@@ -83,7 +83,7 @@ class MessageActivity : BaseActivity<ActivityMessageBinding>(), MyCallback {
     private fun deleteMessage(position: Int) {
         IoTAuth.messageImpl.deleteMessage(messageList[position].MsgID, object : MyCallback {
             override fun fail(msg: String?, reqCode: Int) {
-                L.e(msg ?: "")
+                L.e { msg ?: "" }
             }
 
             override fun success(response: BaseResponse, reqCode: Int) {
@@ -135,7 +135,7 @@ class MessageActivity : BaseActivity<ActivityMessageBinding>(), MyCallback {
     }
 
     override fun fail(msg: String?, reqCode: Int) {
-        L.e(msg ?: "")
+        L.e { msg ?: "" }
     }
 
     override fun success(response: BaseResponse, reqCode: Int) {
diff --git a/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/activity/PersonalInfoActivity.kt b/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/activity/PersonalInfoActivity.kt
index 07a936815..35a62cd9e 100644
--- a/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/activity/PersonalInfoActivity.kt
+++ b/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/activity/PersonalInfoActivity.kt
@@ -4,7 +4,6 @@ import android.Manifest
 import android.content.Intent
 import android.graphics.Bitmap
 import android.text.TextUtils
-import android.util.Log
 import com.tencent.iot.explorer.link.demo.core.popup.EditPopupWindow
 import com.squareup.picasso.Picasso
 import com.tencent.iot.explorer.link.core.auth.IoTAuth
@@ -15,6 +14,8 @@ import com.tencent.iot.explorer.link.core.auth.response.BaseResponse
 import com.tencent.iot.explorer.link.demo.App
 import com.tencent.iot.explorer.link.demo.BaseActivity
 import com.tencent.iot.explorer.link.demo.R
+import com.tencent.iot.explorer.link.demo.common.log.L.ld
+import com.tencent.iot.explorer.link.demo.common.log.L.le
 import com.tencent.iot.explorer.link.demo.core.popup.CameraPopupWindow
 import com.tencent.iot.explorer.link.demo.core.popup.CommonPopupWindow
 import com.tencent.iot.explorer.link.demo.core.response.UserInfoResponse
@@ -82,12 +83,12 @@ class PersonalInfoActivity : BaseActivity<ActivityPersonalInfoBinding>(), MyCall
         uploadImpl.uploadSingleFile(this, file.absolutePath, object :
             UploadCallback {
             override fun onSuccess(url: String, filePath: String, isOver: Boolean) {
-                Log.d(TAG, "上传成功：$url")
+                ld { "上传成功：$url" }
                 modifyAvatar(url)
             }
 
             override fun onFail(filePath: String, isOver: Boolean) {
-                Log.d(TAG, "上传失败：$filePath")
+                ld { "上传失败：$filePath" }
             }
         })
     }
@@ -95,7 +96,7 @@ class PersonalInfoActivity : BaseActivity<ActivityPersonalInfoBinding>(), MyCall
     private fun modifyAvatar(url: String) {
         IoTAuth.userImpl.modifyPortrait(url, object : MyCallback {
             override fun fail(msg: String?, reqCode: Int) {
-                Log.d(TAG, "头像修改失败")
+                ld { "头像修改失败" }
             }
 
             override fun success(response: BaseResponse, reqCode: Int) {
@@ -108,7 +109,7 @@ class PersonalInfoActivity : BaseActivity<ActivityPersonalInfoBinding>(), MyCall
     private fun modifyNick(nick: String) {
         IoTAuth.userImpl.modifyAlias(nick, object : MyCallback {
             override fun fail(msg: String?, reqCode: Int) {
-                Log.d(TAG, "昵称修改失败")
+                ld { "昵称修改失败" }
             }
 
             override fun success(response: BaseResponse, reqCode: Int) {
@@ -181,7 +182,7 @@ class PersonalInfoActivity : BaseActivity<ActivityPersonalInfoBinding>(), MyCall
     }
 
     override fun fail(msg: String?, reqCode: Int) {
-        Log.e(TAG, msg ?: "")
+        le { msg ?: "" }
     }
 
     override fun success(response: BaseResponse, reqCode: Int) {
@@ -196,7 +197,7 @@ class PersonalInfoActivity : BaseActivity<ActivityPersonalInfoBinding>(), MyCall
                 RequestCode.logout -> logout()
             }
         } else {
-            Log.e(TAG, response.msg)
+            le { response.msg }
         }
     }
 
diff --git a/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/activity/RoomActivity.kt b/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/activity/RoomActivity.kt
index da4f8b963..1302a6536 100644
--- a/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/activity/RoomActivity.kt
+++ b/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/activity/RoomActivity.kt
@@ -72,7 +72,7 @@ class RoomActivity : BaseActivity<ActivityRoomBinding>(), MyCallback {
      * 请求失败
      */
     override fun fail(msg: String?, reqCode: Int) {
-        L.e(msg ?: "")
+        L.e { msg ?: "" }
     }
 
     /**
diff --git a/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/activity/RoomListActivity.kt b/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/activity/RoomListActivity.kt
index 7e57a295f..6ad9b35e9 100644
--- a/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/activity/RoomListActivity.kt
+++ b/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/activity/RoomListActivity.kt
@@ -69,7 +69,7 @@ class RoomListActivity : BaseActivity<ActivityRoomListBinding>(), MyCallback {
     }
 
     override fun fail(msg: String?, reqCode: Int) {
-        L.e(msg ?: "")
+        L.e { msg ?: "" }
     }
 
     override fun success(response: BaseResponse, reqCode: Int) {
diff --git a/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/activity/ScanBindActivity.kt b/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/activity/ScanBindActivity.kt
index 6e8c7997d..eff8318f4 100644
--- a/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/activity/ScanBindActivity.kt
+++ b/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/activity/ScanBindActivity.kt
@@ -37,7 +37,7 @@ class ScanBindActivity : BaseActivity<ActivityScanBindBinding>() {
         App.data.getCurrentFamily().run {
             IoTAuth.deviceImpl.scanBindDevice(FamilyId, signature, object : MyCallback {
                 override fun fail(msg: String?, reqCode: Int) {
-                    L.e(msg ?: "")
+                    L.e { msg ?: "" }
                     show(msg ?: "绑定失败")
                 }
 
diff --git a/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/activity/SelectRoomActivity.kt b/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/activity/SelectRoomActivity.kt
index fba026989..3f140f1a6 100644
--- a/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/activity/SelectRoomActivity.kt
+++ b/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/activity/SelectRoomActivity.kt
@@ -99,7 +99,7 @@ class SelectRoomActivity : BaseActivity<ActivitySelectRoomBinding>(),MyCallback
                 FamilyId, selectedRoom.RoomId, device.ProductId, device.DeviceName,
                 object : MyCallback {
                     override fun fail(msg: String?, reqCode: Int) {
-                        L.e(msg ?: "")
+                        L.e { msg ?: "" }
                     }
 
                     override fun success(response: BaseResponse, reqCode: Int) {
@@ -129,7 +129,7 @@ class SelectRoomActivity : BaseActivity<ActivitySelectRoomBinding>(),MyCallback
     }
 
     override fun fail(msg: String?, reqCode: Int) {
-        L.e(msg ?: "")
+        L.e { msg ?: "" }
     }
 
     override fun success(response: BaseResponse, reqCode: Int) {
diff --git a/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/activity/SetPasswordActivity.kt b/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/activity/SetPasswordActivity.kt
index a1bdfd4bd..54a46a319 100644
--- a/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/activity/SetPasswordActivity.kt
+++ b/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/activity/SetPasswordActivity.kt
@@ -54,7 +54,7 @@ class SetPasswordActivity : BaseActivity<ActivitySetPasswordBinding>() {
         }
         IoTAuth.passwordImpl.resetPassword(oldPwd, newPwd, object : MyCallback {
             override fun fail(msg: String?, reqCode: Int) {
-                L.d(msg ?: "")
+                L.d { msg ?: "" }
             }
 
             override fun success(response: BaseResponse, reqCode: Int) {
diff --git a/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/activity/ShareDeviceActivity.kt b/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/activity/ShareDeviceActivity.kt
index ed3452e34..32910ad4c 100644
--- a/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/activity/ShareDeviceActivity.kt
+++ b/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/activity/ShareDeviceActivity.kt
@@ -69,7 +69,7 @@ class ShareDeviceActivity : BaseActivity<ActivityShareDeviceBinding>(), MyCallba
     }
 
     override fun fail(msg: String?, reqCode: Int) {
-        L.e(msg ?: "")
+        L.e { msg ?: "" }
     }
 
     override fun success(response: BaseResponse, reqCode: Int) {
diff --git a/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/activity/ShareDeviceListActivity.kt b/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/activity/ShareDeviceListActivity.kt
index f78f1e046..8a9913acb 100644
--- a/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/activity/ShareDeviceListActivity.kt
+++ b/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/activity/ShareDeviceListActivity.kt
@@ -63,7 +63,7 @@ class ShareDeviceListActivity : BaseActivity<ActivityShareDeviceListBinding>() {
     private fun getShareDeviceList() {
         IoTAuth.shareImpl.shareDeviceList(0, object : MyCallback {
             override fun fail(msg: String?, reqCode: Int) {
-                L.d(msg ?: "")
+                L.d { msg ?: "" }
             }
 
             override fun success(response: BaseResponse, reqCode: Int) {
diff --git a/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/activity/ShareUserListActivity.kt b/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/activity/ShareUserListActivity.kt
index f7d3a88f9..78fb5f6e9 100644
--- a/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/activity/ShareUserListActivity.kt
+++ b/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/activity/ShareUserListActivity.kt
@@ -84,7 +84,7 @@ class ShareUserListActivity : BaseActivity<ActivityShareUserListBinding>(), MyCa
     }
 
     override fun fail(msg: String?, reqCode: Int) {
-        L.e(msg ?: "")
+        L.e { msg ?: "" }
     }
 
     override fun success(response: BaseResponse, reqCode: Int) {
diff --git a/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/activity/ShowAllDeviceActivity.kt b/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/activity/ShowAllDeviceActivity.kt
index 20b40e4df..fffb353e6 100644
--- a/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/activity/ShowAllDeviceActivity.kt
+++ b/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/activity/ShowAllDeviceActivity.kt
@@ -36,7 +36,7 @@ class ShowAllDeviceActivity : BaseActivity<ActivityShowAllDeviceBinding>(), MyCa
     }
 
     override fun fail(msg: String?, reqCode: Int) {
-        L.e(msg ?: "")
+        L.e { msg ?: "" }
     }
 
     override fun success(response: BaseResponse, reqCode: Int) {
diff --git a/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/activity/TimingProjectActivity.kt b/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/activity/TimingProjectActivity.kt
index 4491f57d7..3b2aaccd2 100644
--- a/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/activity/TimingProjectActivity.kt
+++ b/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/activity/TimingProjectActivity.kt
@@ -75,7 +75,7 @@ class TimingProjectActivity : BaseActivity<ActivityTimingProjectBinding>() {
         device?.run {
             IoTAuth.timingImpl.timeList(ProductId, DeviceName, 0, object : MyCallback {
                 override fun fail(msg: String?, reqCode: Int) {
-                    L.e(msg ?: "")
+                    L.e { msg ?: "" }
                 }
 
                 override fun success(response: BaseResponse, reqCode: Int) {
@@ -86,7 +86,7 @@ class TimingProjectActivity : BaseActivity<ActivityTimingProjectBinding>() {
                             showTimingList()
                         }
                     } else {
-                        L.e(response.msg)
+                        L.e { response.msg }
                     }
                 }
             })
@@ -102,7 +102,7 @@ class TimingProjectActivity : BaseActivity<ActivityTimingProjectBinding>() {
             IoTAuth.timingImpl.modifyTimerStatus(ProductId, DeviceName, TimerId, status,
                 object : MyCallback {
                     override fun fail(msg: String?, reqCode: Int) {
-                        L.e(msg ?: "")
+                        L.e { msg ?: "" }
                     }
 
                     override fun success(response: BaseResponse, reqCode: Int) {
@@ -124,7 +124,7 @@ class TimingProjectActivity : BaseActivity<ActivityTimingProjectBinding>() {
             IoTAuth.timingImpl.deleteTimer(ProductId, DeviceName, TimerId,
                 object : MyCallback {
                     override fun fail(msg: String?, reqCode: Int) {
-                        L.e(msg ?: "")
+                        L.e { msg ?: "" }
                     }
 
                     override fun success(response: BaseResponse, reqCode: Int) {
diff --git a/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/fragment/DeviceFragment.kt b/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/fragment/DeviceFragment.kt
index 375edac82..d81a23495 100644
--- a/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/fragment/DeviceFragment.kt
+++ b/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/fragment/DeviceFragment.kt
@@ -25,6 +25,7 @@ import com.tencent.iot.explorer.link.demo.core.activity.ControlPanelActivity
 import com.tencent.iot.explorer.link.demo.core.adapter.OnItemListener
 import com.tencent.iot.explorer.link.demo.core.holder.BaseHolder
 import com.tencent.iot.explorer.link.demo.common.customView.MyDivider
+import com.tencent.iot.explorer.link.demo.common.log.L.le
 import com.tencent.iot.explorer.link.demo.core.activity.ShowAllDeviceActivity
 import com.tencent.iot.explorer.link.demo.databinding.FragmentDeviceBinding
 
@@ -82,7 +83,7 @@ class DeviceFragment : BaseFragment<FragmentDeviceBinding>(), MyCallback {
             override fun onItemClick(holder: BaseHolder<*, *>, clickView: View, position: Int) {
                 App.data.tabRoom(position)
                 showRoom()
-                Log.e("onItemClick", "切换房间更新设备列表")
+                le({ "onItemClick" }, { "切换房间更新设备列表" })
                 refreshDeviceList()
                 showDevice()
             }
@@ -139,7 +140,7 @@ class DeviceFragment : BaseFragment<FragmentDeviceBinding>(), MyCallback {
                     }
 
                     override fun fail(message: String) {
-                        Log.e("deviceList", message)
+                        le({ "deviceList" }, { message })
                     }
                 })
         }
@@ -185,13 +186,13 @@ class DeviceFragment : BaseFragment<FragmentDeviceBinding>(), MyCallback {
                     response.parse(RoomListResponse::class.java)?.run {
                         IoTAuth.roomList.addAll(Roomlist)
                         showRoom()
-                        Log.e("success", "首次更新房间列表，更新设备列表")
+                        le({ "success" }, { "首次更新房间列表，更新设备列表" })
                         refreshDeviceList()
                     }
                 }
             }
         } else {
-            Log.e("DeviceFragment", response.msg)
+            le { response.msg }
         }
     }
 }
\ No newline at end of file
diff --git a/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/fragment/MeFragment.kt b/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/fragment/MeFragment.kt
index d2a2ec6f5..25bb96612 100644
--- a/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/fragment/MeFragment.kt
+++ b/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/fragment/MeFragment.kt
@@ -40,7 +40,7 @@ class MeFragment : BaseFragment<FragmentMeBinding>(), MyCallback {
     }
 
     override fun fail(msg: String?, reqCode: Int) {
-        L.e(msg ?: "")
+        L.e { msg ?: "" }
     }
 
     override fun success(response: BaseResponse, reqCode: Int) {
@@ -49,7 +49,7 @@ class MeFragment : BaseFragment<FragmentMeBinding>(), MyCallback {
                 App.data.userInfo.update(it)
             }
         } else {
-            L.e(response.msg)
+            L.e { response.msg }
         }
     }
 
diff --git a/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/holder/EnumHolder.kt b/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/holder/EnumHolder.kt
index 64a152db5..f6834b5e5 100644
--- a/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/holder/EnumHolder.kt
+++ b/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/holder/EnumHolder.kt
@@ -16,7 +16,7 @@ class EnumHolder : BaseHolder<Mapping, ItemEnumBinding> {
 
     override fun show(holder: BaseHolder<*, *>, position: Int) {
         data.run {
-            L.e("key=$key,value=$value")
+            L.e { "key=$key,value=$value" }
             binding.tvEnumTitle.text = key
             binding.ivEnumStatus.setImageResource(
                 if (window.selectValue == value) {
diff --git a/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/upload/UploadService.kt b/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/upload/UploadService.kt
index 2987ef806..d0a56682b 100644
--- a/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/upload/UploadService.kt
+++ b/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/core/upload/UploadService.kt
@@ -78,7 +78,7 @@ internal class UploadService : BaseService(), UploadImpl {
         param["path"] = "iotexplorer-app-logs/user_{uin}/"
         tokenAppCosAuth(param, object : MyCallback {
             override fun fail(msg: String?, reqCode: Int) {
-                L.d("获取签名失败:${msg ?: ""}")
+                L.d { "获取签名失败:${msg ?: ""}" }
             }
 
             override fun success(response: BaseResponse, reqCode: Int) {
@@ -94,7 +94,7 @@ internal class UploadService : BaseService(), UploadImpl {
                         }
                     }
                 }
-                L.d("获取签名返回:${JsonManager.toJson(response)}")
+                L.d { "获取签名返回:${JsonManager.toJson(response)}" }
             }
         }, app_cos_auth) //上传图片
     }
@@ -120,10 +120,10 @@ internal class UploadService : BaseService(), UploadImpl {
             //上传对象
             transferManager.upload(bucket, cosPath, srcPath, uploadId).let {
                 entity.task = it
-                L.d("开始上传：$srcPath")
+                L.d { "开始上传：$srcPath" }
                 it.setCosXmlResultListener(object : CosXmlResultListener {
                     override fun onSuccess(request: CosXmlRequest, result: CosXmlResult) {
-                        L.d("上传成功")
+                        L.d { "上传成功" }
                         entity.url = result.accessUrl
                         onSuccess(entity, callback)
                     }
diff --git a/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/video/playback/cloudPlayback/VideoCloudPlaybackFragment.kt b/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/video/playback/cloudPlayback/VideoCloudPlaybackFragment.kt
index 59c9aca9b..483d3e24d 100644
--- a/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/video/playback/cloudPlayback/VideoCloudPlaybackFragment.kt
+++ b/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/video/playback/cloudPlayback/VideoCloudPlaybackFragment.kt
@@ -2,7 +2,6 @@ package com.tencent.iot.explorer.link.demo.video.playback.cloudPlayback
 
 import android.graphics.SurfaceTexture
 import android.text.TextUtils
-import android.util.Log
 import android.view.LayoutInflater
 import android.view.Surface
 import android.view.TextureView
@@ -19,6 +18,8 @@ import com.tencent.iot.explorer.link.demo.R
 import com.tencent.iot.explorer.link.demo.common.customView.CalendarView
 import com.tencent.iot.explorer.link.demo.common.customView.timeline.TimeLineView
 import com.tencent.iot.explorer.link.demo.common.customView.timeline.TimeLineViewChangeListener
+import com.tencent.iot.explorer.link.demo.common.log.L
+import com.tencent.iot.explorer.link.demo.common.log.L.ld
 import com.tencent.iot.explorer.link.demo.common.util.CommonUtils
 import com.tencent.iot.explorer.link.demo.core.entity.BaseResponse
 import com.tencent.iot.explorer.link.demo.core.entity.VideoHistory
@@ -314,7 +315,7 @@ class VideoCloudPlaybackFragment: VideoPlaybackBaseFragment<FragmentVideoCloudPl
 
                 override fun success(response: String?, reqCode: Int) {
                     var json = JSONObject.parseObject(response)
-                    Log.d("响应mjpeg===>url", response)
+                    L.d({ "响应mjpeg===>url" }, { response.toString() })
 
                     json?.let {
                         it.getJSONObject("Response")?.let {
@@ -332,7 +333,7 @@ class VideoCloudPlaybackFragment: VideoPlaybackBaseFragment<FragmentVideoCloudPl
     }
 
     private fun startMJPEGVideo(vUrl: String, aUrl: String) {
-        Log.d(tag, "响应mjpeg===>vUrl=${vUrl} \nand aURL===>${aUrl} \nand duration===>${cloudVideoDuration}")
+        ld { "响应mjpeg===>vUrl=${vUrl} \nand aURL===>${aUrl} \nand duration===>${cloudVideoDuration}" }
         player.reset()
         player.setSurface(this.surface)
         player.dataSource = vUrl
diff --git a/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/video/playback/localPlayback/VideoLocalPlaybackFragment.kt b/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/video/playback/localPlayback/VideoLocalPlaybackFragment.kt
index f849cd094..797fd718b 100644
--- a/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/video/playback/localPlayback/VideoLocalPlaybackFragment.kt
+++ b/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/video/playback/localPlayback/VideoLocalPlaybackFragment.kt
@@ -3,7 +3,6 @@ package com.tencent.iot.explorer.link.demo.video.playback.localPlayback
 import android.graphics.SurfaceTexture
 import android.os.Environment
 import android.text.TextUtils
-import android.util.Log
 import android.view.*
 import android.widget.SeekBar
 import android.widget.Toast
@@ -12,13 +11,14 @@ import androidx.recyclerview.widget.LinearLayoutManager
 import com.alibaba.fastjson.JSON
 import com.alibaba.fastjson.JSONArray
 import com.alibaba.fastjson.JSONObject
-import com.tencent.iot.explorer.link.core.log.L
 import com.tencent.iot.explorer.link.demo.App
 import com.tencent.iot.explorer.link.demo.BuildConfig
 import com.tencent.iot.explorer.link.demo.R
 import com.tencent.iot.explorer.link.demo.common.customView.CalendarView
 import com.tencent.iot.explorer.link.demo.common.customView.timeline.TimeLineView
 import com.tencent.iot.explorer.link.demo.common.customView.timeline.TimeLineViewChangeListener
+import com.tencent.iot.explorer.link.demo.common.log.L.ld
+import com.tencent.iot.explorer.link.demo.common.log.L.le
 import com.tencent.iot.explorer.link.demo.common.util.CommonUtils
 import com.tencent.iot.explorer.link.demo.common.util.ImageSelect
 import com.tencent.iot.explorer.link.demo.databinding.FragmentVideoLocalPlaybackBinding
@@ -104,7 +104,7 @@ class VideoLocalPlaybackFragment : VideoPlaybackBaseFragment<FragmentVideoLocalP
         } else {
             player.let {
                 if (currentPlayerState) {
-                    Log.d(TAG, "setUserVisibleHint playVideo isVisibleToUser $isVisibleToUser")
+                    ld { "setUserVisibleHint playVideo isVisibleToUser $isVisibleToUser" }
                     // 滑动该页面时，如果处于播放状态，暂停播放
                     launch(Dispatchers.Main) {
                         binding.ivStart.performClick()
@@ -113,7 +113,7 @@ class VideoLocalPlaybackFragment : VideoPlaybackBaseFragment<FragmentVideoLocalP
             }
         }
         isShowing = isVisibleToUser
-        Log.d(TAG, "setUserVisibleHint isShowing $isShowing")
+        ld { "setUserVisibleHint isShowing $isShowing" }
     }
 
     override fun startHere(view: View) {
@@ -154,7 +154,7 @@ class VideoLocalPlaybackFragment : VideoPlaybackBaseFragment<FragmentVideoLocalP
      * 开启xp2p服务
      */
     private fun startService() {
-        Log.d(TAG, "startService")
+        ld { "startService" }
         if (App.data.accessInfo == null || devInfo == null || TextUtils.isEmpty(devInfo?.DeviceName)) return
         val xP2PAppConfig = XP2PAppConfig().apply {
             appKey = BuildConfig.TencentIotLinkSDKDemoAppkey
@@ -169,7 +169,7 @@ class VideoLocalPlaybackFragment : VideoPlaybackBaseFragment<FragmentVideoLocalP
 
     private var onCompletionListener = object : IMediaPlayer.OnCompletionListener {
         override fun onCompletion(mp: IMediaPlayer?) {
-            Log.d(TAG, "onCompletion")
+            ld { "onCompletion" }
             binding.ivStart.setImageResource(R.mipmap.start)
             binding.pauseTipLayout.visibility = View.VISIBLE
             seekBarJob?.cancel()
@@ -309,7 +309,7 @@ class VideoLocalPlaybackFragment : VideoPlaybackBaseFragment<FragmentVideoLocalP
 
             launch(Dispatchers.Main) {
                 var resp = requestTagDateInfo(it)
-                Log.d(TAG, "resp $resp")
+                ld { "resp $resp" }
                 if (TextUtils.isEmpty(resp)) return@launch
 
                 try {
@@ -405,7 +405,7 @@ class VideoLocalPlaybackFragment : VideoPlaybackBaseFragment<FragmentVideoLocalP
                 if (TextUtils.isEmpty(tvAllTime.text.toString())) return@setOnClickListener
 
                 var id = "${App.data.accessInfo?.productId}/${devInfo?.DeviceName}"
-                Log.d(TAG, "setOnClickListener currentPlayerState $currentPlayerState")
+                ld { "setOnClickListener currentPlayerState $currentPlayerState" }
 
                 if (currentPlayerState) {
                     launch(Dispatchers.IO) {
@@ -550,7 +550,7 @@ class VideoLocalPlaybackFragment : VideoPlaybackBaseFragment<FragmentVideoLocalP
 
         var id = "${App.data.accessInfo?.productId}/${devInfo?.DeviceName}"
         var timeStr = formateDateParam(dateStr)
-        Log.d(TAG, "request timeStr $timeStr")
+        ld { "request timeStr $timeStr" }
         var command = Command.getMonthDates(devInfo!!.Channel, timeStr)
         if (TextUtils.isEmpty(command)) return ""
         return sendCmd(id, command)
@@ -580,15 +580,15 @@ class VideoLocalPlaybackFragment : VideoPlaybackBaseFragment<FragmentVideoLocalP
     }
 
     private fun playVideo(startTime: Long, endTime: Long, offset: Long) {
-        Log.d(TAG, "startTime $startTime endTime $endTime offset $offset")
+        ld { "startTime $startTime endTime $endTime offset $offset" }
         keepStartTime = startTime
         keepEndTime = endTime
         devInfo?.let {
-            Log.d(TAG, "isShowing $isShowing")
+            ld { "isShowing $isShowing" }
             launch(Dispatchers.Main) {
                 delay(1000)
                 if (!isShowing) currentPlayerState = false
-                Log.d(TAG, "playVideo currentPlayerState $currentPlayerState")
+                ld { "playVideo currentPlayerState $currentPlayerState" }
                 setPlayerUrl(Command.getLocalVideoUrl(it.Channel, startTime, endTime), offset)
                 binding.tvAllTime.text = CommonUtils.formatTime(endTime * 1000 - startTime * 1000)
                 binding.videoSeekbar.max = (endTime - startTime).toInt()
@@ -609,7 +609,7 @@ class VideoLocalPlaybackFragment : VideoPlaybackBaseFragment<FragmentVideoLocalP
         player.setOnCompletionListener(onCompletionListener)
         player.let {
             var url = urlPrefix + suffix
-            Log.d(TAG, "setPlayerUrl url $url")
+            ld { "setPlayerUrl url $url" }
             it.reset()
 
             it.setOption(IjkMediaPlayer.OPT_CATEGORY_FORMAT, "analyzemaxduration", 100)
@@ -642,7 +642,7 @@ class VideoLocalPlaybackFragment : VideoPlaybackBaseFragment<FragmentVideoLocalP
 
                     var seekResp = sendCmd(id, seekCommand)
                     var commandResp = JSON.parseObject(seekResp, CommandResp::class.java)
-                    L.e(TAG, "seekCommandResp code " + commandResp?.status)
+                    le { "seekCommandResp code ${commandResp?.status}" }
                 }
             }
 
@@ -687,9 +687,9 @@ class VideoLocalPlaybackFragment : VideoPlaybackBaseFragment<FragmentVideoLocalP
         val file = File(path)
         if (!file.exists()) {
             if (file.mkdirs()) {
-                L.d("创建本地回放存储路径成功")
+                ld { "创建本地回放存储路径成功" }
             } else {
-                L.e("创建本地回放存储路径失败")
+                le { "创建本地回放存储路径失败" }
                 Toast.makeText(context, getString(R.string.fail_to_create_path), Toast.LENGTH_SHORT)
                     .show()
                 return -1L
@@ -743,7 +743,7 @@ class VideoLocalPlaybackFragment : VideoPlaybackBaseFragment<FragmentVideoLocalP
     override fun commandRequest(id: String?, msg: String?) {}
     override fun avDataRecvHandle(id: String?, data: ByteArray?, len: Int) {
         out?.write(data)
-        L.d("==== data len: $len")
+        ld { "==== data len: $len" }
     }
 
     override fun avDataCloseHandle(id: String?, msg: String?, errorCode: Int) {}
@@ -752,7 +752,7 @@ class VideoLocalPlaybackFragment : VideoPlaybackBaseFragment<FragmentVideoLocalP
     }
 
     override fun xp2pEventNotify(id: String?, msg: String?, event: Int) {
-        Log.e(TAG, "id=${id}, event=${event}")
+        le { "id=${id}, event=${event}" }
         if (event == 1003) {
             if (isDownloading) {
                 launch(Dispatchers.Main) {
@@ -763,7 +763,7 @@ class VideoLocalPlaybackFragment : VideoPlaybackBaseFragment<FragmentVideoLocalP
                 }
             } // 唤醒守护线程
             currentPostion = player.currentPosition / 1000
-            L.e(TAG, "xp2pEventNotify currentPostion $currentPostion")
+            le { "xp2pEventNotify currentPostion $currentPostion" }
             launch(Dispatchers.Main) {
                 Toast.makeText(
                     context,
@@ -795,7 +795,7 @@ class VideoLocalPlaybackFragment : VideoPlaybackBaseFragment<FragmentVideoLocalP
                 ).show()
             }
         } else if (event == 1010) {
-            Log.e(tag, "====event === 1010, 校验失败，info撞库防止串流： $msg")
+            le { "====event === 1010, 校验失败，info撞库防止串流： $msg" }
         }
     }
 
diff --git a/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/video/preview/VideoPreviewActivity.kt b/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/video/preview/VideoPreviewActivity.kt
index c3d84fd1a..d8621fe82 100644
--- a/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/video/preview/VideoPreviewActivity.kt
+++ b/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/video/preview/VideoPreviewActivity.kt
@@ -13,7 +13,6 @@ import android.os.Handler
 import android.os.Message
 import android.text.TextUtils
 import android.util.DisplayMetrics
-import android.util.Log
 import android.view.Surface
 import android.view.TextureView
 import android.view.View
@@ -26,6 +25,8 @@ import com.tencent.iot.explorer.link.demo.App
 import com.tencent.iot.explorer.link.demo.BuildConfig
 import com.tencent.iot.explorer.link.demo.R
 import com.tencent.iot.explorer.link.demo.common.log.L
+import com.tencent.iot.explorer.link.demo.common.log.L.ld
+import com.tencent.iot.explorer.link.demo.common.log.L.le
 import com.tencent.iot.explorer.link.demo.common.util.CommonUtils
 import com.tencent.iot.explorer.link.demo.common.util.ImageSelect
 import com.tencent.iot.explorer.link.demo.databinding.ActivityVideoPreviewBinding
@@ -114,7 +115,7 @@ class VideoPreviewActivity : VideoPreviewBaseActivity<ActivityVideoPreviewBindin
     }
 
     override fun updateXp2pInfo(xp2pInfo: String) {
-        Log.d(tag, "update xp2p2Info:$xp2pInfo")
+        ld { "update xp2p2Info:$xp2pInfo" }
         startService()
     }
 
@@ -163,7 +164,7 @@ class VideoPreviewActivity : VideoPreviewBaseActivity<ActivityVideoPreviewBindin
     }
 
     private fun startService() {
-        Log.d(tag, "startService")
+        ld { "startService" }
         XP2P.startService(
             this,
             presenter.getProductId(),
@@ -174,7 +175,7 @@ class VideoPreviewActivity : VideoPreviewBaseActivity<ActivityVideoPreviewBindin
     }
 
     private fun checkDeviceState() {
-        Log.d(tag, "====检测设备状态===")
+        ld { "====检测设备状态===" }
         launch(Dispatchers.IO) {
             getDeviceStatus("${presenter.getProductId()}/${presenter.getDeviceName()}") { isOnline, msg ->
                 launch(Dispatchers.Main) {
@@ -191,7 +192,7 @@ class VideoPreviewActivity : VideoPreviewBaseActivity<ActivityVideoPreviewBindin
     }
 
     private fun restartService() {
-        Log.d(tag, "====开始重连===")
+        ld { "====开始重连===" }
         XP2P.stopService("${presenter.getProductId()}/${presenter.getDeviceName()}")
         getDeviceP2PInfo()
     }
@@ -218,7 +219,7 @@ class VideoPreviewActivity : VideoPreviewBaseActivity<ActivityVideoPreviewBindin
     }
 
     override fun onSurfaceTextureAvailable(surface: SurfaceTexture?, width: Int, height: Int) {
-        Log.d(tag, "onSurfaceTextureAvailable")
+        ld { "onSurfaceTextureAvailable" }
         surface?.let {
             this.surface = Surface(surface)
             player.setSurface(this.surface)
@@ -465,7 +466,7 @@ class VideoPreviewActivity : VideoPreviewBaseActivity<ActivityVideoPreviewBindin
             player.setFrameSpeed(1.5f)
             while (!::surface.isInitialized) {
                 delay(50)
-                L.e("delay for waiting surface.")
+                le { "delay for waiting surface." }
             }
             player.setSurface(surface)
             player.dataSource = url
@@ -526,11 +527,11 @@ class VideoPreviewActivity : VideoPreviewBaseActivity<ActivityVideoPreviewBindin
 
     override fun onSurfaceTextureSizeChanged(surface: SurfaceTexture?, width: Int, height: Int) {
         if (!(player.videoWidth > 0 && player.videoHeight > 0)) {
-            Log.e(TAG, "onSurfaceTextureSizeChanged: player video size param must > 0.")
+            le { "onSurfaceTextureSizeChanged: player video size param must > 0." }
             return
         }
 
-        Log.d(tag, "onSurfaceTextureSizeChanged")
+        ld { "onSurfaceTextureSizeChanged" }
         val layoutParams = binding.vPreview.layoutParams
         if (orientationV) {
             layoutParams.width = (player.videoWidth * (screenWidth * 16 / 9)) / player.videoHeight
@@ -543,13 +544,13 @@ class VideoPreviewActivity : VideoPreviewBaseActivity<ActivityVideoPreviewBindin
     }
 
     override fun onSurfaceTextureDestroyed(surface: SurfaceTexture?): Boolean {
-        Log.d(tag, "onSurfaceTextureDestroyed")
+        ld { "onSurfaceTextureDestroyed" }
         return false
     }
 
     override fun onSurfaceTextureUpdated(surface: SurfaceTexture?) {
         if (!(player.videoWidth > 0 && player.videoHeight > 0)) {
-            Log.e(TAG, "onSurfaceTextureUpdated: player video size param must > 0.")
+            le { "onSurfaceTextureUpdated: player video size param must > 0." }
             return
         }
 
@@ -578,9 +579,9 @@ class VideoPreviewActivity : VideoPreviewBaseActivity<ActivityVideoPreviewBindin
     }
 
     override fun xp2pEventNotify(id: String?, msg: String?, event: Int) {
-        Log.e(tag, "id=${id}, event=${event}")
+        le { "id=${id}, event=${event}" }
         if (event == 1003) {
-            Log.e(tag, "====event === 1003")
+            le { "====event === 1003" }
             startShowVideoTime = 0L
             launch(Dispatchers.Main) {
                 val content = getString(R.string.disconnected_and_reconnecting, id)
@@ -593,11 +594,11 @@ class VideoPreviewActivity : VideoPreviewBaseActivity<ActivityVideoPreviewBindin
         } else if (event == 1004 || event == 1005) {
             connectTime = System.currentTimeMillis() - connectStartTime
             if (event == 1004) {
-                Log.e(tag, "====event === 1004")
+                le { "====event === 1004" }
                 checkDeviceState()
             }
         } else if (event == 1010) {
-            Log.e(tag, "====event === 1010, 校验失败，info撞库防止串流： $msg")
+            le { "====event === 1010, 校验失败，info撞库防止串流： $msg" }
         }
     }
 
diff --git a/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/video/preview/VideoPreviewMJPEGActivity.kt b/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/video/preview/VideoPreviewMJPEGActivity.kt
index 74a4d4b60..22cf89eea 100644
--- a/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/video/preview/VideoPreviewMJPEGActivity.kt
+++ b/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/video/preview/VideoPreviewMJPEGActivity.kt
@@ -12,7 +12,6 @@ import android.os.Handler
 import android.os.Message
 import android.text.TextUtils
 import android.util.DisplayMetrics
-import android.util.Log
 import android.view.Surface
 import android.view.TextureView
 import android.view.View
@@ -26,6 +25,7 @@ import com.tencent.iot.explorer.link.demo.App
 import com.tencent.iot.explorer.link.demo.BuildConfig
 import com.tencent.iot.explorer.link.demo.R
 import com.tencent.iot.explorer.link.demo.common.log.L
+import com.tencent.iot.explorer.link.demo.common.log.L.le
 import com.tencent.iot.explorer.link.demo.common.util.CommonUtils
 import com.tencent.iot.explorer.link.demo.common.util.ImageSelect
 import com.tencent.iot.explorer.link.demo.databinding.ActivityVideoPreviewBinding
@@ -456,7 +456,7 @@ class VideoPreviewMJPEGActivity : VideoPreviewBaseActivity<ActivityVideoPreviewB
                 it.setFrameSpeed(1.5f)
                 while (!::surface.isInitialized) {
                     delay(50)
-                    L.e("delay for waiting surface.")
+                    le { "delay for waiting surface." }
                 }
                 it.setSurface(surface)
                 it.dataSource = url
@@ -488,7 +488,7 @@ class VideoPreviewMJPEGActivity : VideoPreviewBaseActivity<ActivityVideoPreviewB
                 it.setFrameSpeed(1.5f)
                 while (!::surface.isInitialized) {
                     delay(50)
-                    L.e("delay for waiting surface.")
+                    le { "delay for waiting surface." }
                 }
                 it.setSurface(surface)
                 it.dataSource = url
@@ -551,7 +551,7 @@ class VideoPreviewMJPEGActivity : VideoPreviewBaseActivity<ActivityVideoPreviewB
 
     override fun onSurfaceTextureSizeChanged(surface: SurfaceTexture?, width: Int, height: Int) {
         if (!(player.videoWidth > 0 && player.videoHeight > 0)) {
-            Log.e(TAG, "onSurfaceTextureSizeChanged: player video size param must > 0.")
+            le { "onSurfaceTextureSizeChanged: player video size param must > 0." }
             return
         }
 
@@ -572,7 +572,7 @@ class VideoPreviewMJPEGActivity : VideoPreviewBaseActivity<ActivityVideoPreviewB
 
     override fun onSurfaceTextureUpdated(surface: SurfaceTexture?) {
         if (!(player.videoWidth > 0 && player.videoHeight > 0)) {
-            Log.e(TAG, "onSurfaceTextureUpdated: player video size param must > 0.")
+            le { "onSurfaceTextureUpdated: player video size param must > 0." }
             return
         }
 
@@ -604,9 +604,9 @@ class VideoPreviewMJPEGActivity : VideoPreviewBaseActivity<ActivityVideoPreviewB
     }
 
     override fun xp2pEventNotify(id: String?, msg: String?, event: Int) {
-        Log.e(tag, "id=${id}, event=${event}")
+        le { "id=${id}, event=${event}" }
         if (event == 1003) {
-            Log.e(tag, "====event === 1003")
+            le { "====event === 1003" }
             startShowVideoTime = 0L
             launch(Dispatchers.Main) {
                 val content = getString(R.string.disconnected_and_reconnecting, id)
@@ -616,11 +616,11 @@ class VideoPreviewMJPEGActivity : VideoPreviewBaseActivity<ActivityVideoPreviewB
         } else if (event == 1004 || event == 1005) {
             connectTime = System.currentTimeMillis() - connectStartTime
             if (event == 1004) {
-                Log.e(tag, "====event === 1004")
+                le { "====event === 1004" }
                 delegateHttpFlv()
             }
         } else if (event == 1010) {
-            Log.e(tag, "====event === 1010, 校验失败，info撞库防止串流： $msg")
+            le { "====event === 1010, 校验失败，info撞库防止串流： $msg" }
         }
     }
 
diff --git a/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/video/preview/VideoPushStreamActivity.kt b/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/video/preview/VideoPushStreamActivity.kt
index b2dc008cc..903de4bea 100644
--- a/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/video/preview/VideoPushStreamActivity.kt
+++ b/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/video/preview/VideoPushStreamActivity.kt
@@ -12,7 +12,6 @@ import android.os.Build
 import android.os.Bundle
 import android.os.Handler
 import android.text.TextUtils
-import android.util.Log
 import android.view.Surface
 import android.view.SurfaceHolder
 import android.view.TextureView
@@ -23,6 +22,8 @@ import com.alibaba.fastjson.JSONArray
 import com.tencent.iot.explorer.link.demo.App
 import com.tencent.iot.explorer.link.demo.BuildConfig
 import com.tencent.iot.explorer.link.demo.R
+import com.tencent.iot.explorer.link.demo.common.log.L.ld
+import com.tencent.iot.explorer.link.demo.common.log.L.le
 import com.tencent.iot.explorer.link.demo.databinding.ActivityVideoPushStreamBinding
 import com.tencent.iot.explorer.link.demo.video.Command
 import com.tencent.iot.explorer.link.demo.video.DevInfo
@@ -130,7 +131,7 @@ class VideoPushStreamActivity : VideoPreviewBaseActivity<ActivityVideoPushStream
     }
 
     private fun checkDeviceState() {
-        Log.d(tag, "====检测设备状态===")
+        ld { "====检测设备状态===" }
         launch(Dispatchers.IO) {
             getDeviceStatus("${presenter.getProductId()}/${presenter.getDeviceName()}") { isOnline, msg ->
                 launch(Dispatchers.Main) {
@@ -316,9 +317,9 @@ class VideoPushStreamActivity : VideoPreviewBaseActivity<ActivityVideoPushStream
     }
 
     override fun xp2pEventNotify(id: String?, msg: String?, event: Int) {
-        Log.e(tag, "id=${id}, event=${event}")
+        le { "id=${id}, event=${event}" }
         if (event == 1003) {
-            Log.e(tag, "====event === 1003")
+            le { "====event === 1003" }
             launch(Dispatchers.Main) {
                 var content = getString(R.string.disconnected_and_reconnecting, id)
                 Toast.makeText(this@VideoPushStreamActivity, content, Toast.LENGTH_SHORT).show()
@@ -327,11 +328,11 @@ class VideoPushStreamActivity : VideoPreviewBaseActivity<ActivityVideoPushStream
         } else if (event == 1004 || event == 1005) {
             connectTime = System.currentTimeMillis() - connectStartTime
             if (event == 1004) {
-                Log.e(tag, "====event === 1004")
+                le { "====event === 1004" }
                 checkDeviceState()
             }
         } else if (event == 1010) {
-            Log.e(tag, "====event === 1010, 校验失败，info撞库防止串流： $msg")
+            le { "====event === 1010, 校验失败，info撞库防止串流： $msg" }
         }
     }
 
@@ -463,16 +464,16 @@ class VideoPushStreamActivity : VideoPreviewBaseActivity<ActivityVideoPushStream
     }
 
     override fun surfaceCreated(p0: SurfaceHolder?) {
-        Log.d(tag, "surfaceCreated")
+        ld { "surfaceCreated" }
         openCamera()
     }
 
     override fun surfaceChanged(p0: SurfaceHolder?, p1: Int, p2: Int, p3: Int) {
-        Log.d(tag, "surfaceChanged")
+        ld { "surfaceChanged" }
     }
 
     override fun surfaceDestroyed(p0: SurfaceHolder?) {
-        Log.d(tag, "surfaceDestroyed")
+        ld { "surfaceDestroyed" }
         p0?.removeCallback(this)
     }
 
diff --git a/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/video/preview/VideoTestActivity.kt b/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/video/preview/VideoTestActivity.kt
index ad533bc12..5aa593921 100644
--- a/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/video/preview/VideoTestActivity.kt
+++ b/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/video/preview/VideoTestActivity.kt
@@ -10,7 +10,6 @@ import android.os.Handler
 import android.os.Message
 import android.text.TextUtils
 import android.util.DisplayMetrics
-import android.util.Log
 import android.view.Surface
 import android.view.TextureView
 import android.view.View
@@ -22,6 +21,8 @@ import com.tencent.iot.explorer.link.demo.BuildConfig
 import com.tencent.iot.explorer.link.demo.R
 import com.tencent.iot.explorer.link.demo.VideoBaseActivity
 import com.tencent.iot.explorer.link.demo.common.log.L
+import com.tencent.iot.explorer.link.demo.common.log.L.ld
+import com.tencent.iot.explorer.link.demo.common.log.L.le
 import com.tencent.iot.explorer.link.demo.common.util.CommonUtils
 import com.tencent.iot.explorer.link.demo.common.util.ImageSelect
 import com.tencent.iot.explorer.link.demo.databinding.ActivityVideoTestBinding
@@ -158,7 +159,7 @@ class VideoTestActivity : VideoBaseActivity<ActivityVideoTestBinding>(), XP2PCal
     }
 
     private fun checkDeviceState() {
-        Log.d(tag, "====检测设备状态===")
+        ld { "====检测设备状态===" }
         launch(Dispatchers.IO) {
             getDeviceStatus("${productId}/${deviceName}") { isOnline, msg ->
                 launch(Dispatchers.Main) {
@@ -467,7 +468,7 @@ class VideoTestActivity : VideoBaseActivity<ActivityVideoTestBinding>(), XP2PCal
             player.setMaxPacketNum(2)
             while (!::surface.isInitialized) {
                 delay(50)
-                L.e("delay for waiting surface.")
+                le { "delay for waiting surface." }
             }
             player.setSurface(surface)
             player.dataSource = url
@@ -479,13 +480,13 @@ class VideoTestActivity : VideoBaseActivity<ActivityVideoTestBinding>(), XP2PCal
     override fun fail(msg: String?, errorCode: Int) {}
 
     override fun commandRequest(id: String?, msg: String?) {
-        Log.e(tag, "xp2pEventNotify id:$id  msg:$msg")
+        le { "xp2pEventNotify id:$id  msg:$msg" }
     }
 
     override fun xp2pEventNotify(id: String?, msg: String?, event: Int) {
-        Log.e(tag, "xp2pEventNotify id:$id  msg:$msg  event:$event")
+        le { "xp2pEventNotify id:$id  msg:$msg  event:$event" }
         if (event == 1003) {
-            Log.e(tag, "====event === 1003")
+            le { "====event === 1003" }
             startShowVideoTime = 0L
             launch(Dispatchers.Main) {
                 val content = getString(R.string.disconnected_and_reconnecting, id)
@@ -502,25 +503,25 @@ class VideoTestActivity : VideoBaseActivity<ActivityVideoTestBinding>(), XP2PCal
         } else if (event == 1004 || event == 1005) {
             connectTime = System.currentTimeMillis() - connectStartTime
             if (event == 1004) {
-                Log.e(tag, "====event === 1004")
+                le { "====event === 1004" }
                 checkDeviceState()
 //                delegateHttpFlv()
             }
         } else if (event == 1010) {
-            Log.e(tag, "====event === 1010, 校验失败，info撞库防止串流： $msg")
+            le { "====event === 1010, 校验失败，info撞库防止串流： $msg" }
         }
     }
 
     override fun avDataRecvHandle(id: String?, data: ByteArray?, len: Int) {
-        Log.e(tag, "avDataRecvHandle id:$id  data:$data  len:$data")
+        le { "avDataRecvHandle id:$id  data:$data  len:$data" }
     }
 
     override fun avDataCloseHandle(id: String?, msg: String?, errorCode: Int) {
-        Log.e(tag, "avDataCloseHandle id:$id  msg:$msg  errorCode:$errorCode")
+        le { "avDataCloseHandle id:$id  msg:$msg  errorCode:$errorCode" }
     }
 
     override fun onDeviceMsgArrived(id: String?, data: ByteArray?, len: Int): String {
-        Log.e(tag, "onDeviceMsgArrived id:$id  data:$data  len:$len")
+        le { "onDeviceMsgArrived id:$id  data:$data  len:$len" }
         val reply = JSONObject()
         reply.put("code", "0")
         reply.put("msg", "test command reply")
@@ -535,7 +536,7 @@ class VideoTestActivity : VideoBaseActivity<ActivityVideoTestBinding>(), XP2PCal
     }
 
     override fun onSurfaceTextureSizeChanged(surface: SurfaceTexture?, width: Int, height: Int) {
-        Log.d(tag, "onSurfaceTextureSizeChanged")
+        ld { "onSurfaceTextureSizeChanged" }
         val layoutParams = binding.vPreview.layoutParams
         if (orientationV) {
             layoutParams.width = (player.videoWidth * (screenWidth * 16 / 9)) / player.videoHeight
@@ -547,7 +548,7 @@ class VideoTestActivity : VideoBaseActivity<ActivityVideoTestBinding>(), XP2PCal
     }
 
     override fun onSurfaceTextureDestroyed(surface: SurfaceTexture?): Boolean {
-        Log.d(tag, "onSurfaceTextureDestroyed")
+        ld { "onSurfaceTextureDestroyed" }
         return false
     }
 
diff --git a/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/video/preview/VideoWithoutPropertyActivity.kt b/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/video/preview/VideoWithoutPropertyActivity.kt
index 0ff7bc43d..b8f6e2219 100644
--- a/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/video/preview/VideoWithoutPropertyActivity.kt
+++ b/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/video/preview/VideoWithoutPropertyActivity.kt
@@ -14,7 +14,6 @@ import android.os.Handler
 import android.os.Message
 import android.text.TextUtils
 import android.util.DisplayMetrics
-import android.util.Log
 import android.view.*
 import android.widget.Toast
 import androidx.annotation.RequiresApi
@@ -24,6 +23,8 @@ import com.tencent.iot.explorer.link.demo.App
 import com.tencent.iot.explorer.link.demo.BuildConfig
 import com.tencent.iot.explorer.link.demo.R
 import com.tencent.iot.explorer.link.demo.common.log.L
+import com.tencent.iot.explorer.link.demo.common.log.L.ld
+import com.tencent.iot.explorer.link.demo.common.log.L.le
 import com.tencent.iot.explorer.link.demo.common.util.CommonUtils
 import com.tencent.iot.explorer.link.demo.databinding.ActivityVideoWithoutPropertyBinding
 import com.tencent.iot.explorer.link.demo.video.Command
@@ -156,7 +157,7 @@ open class VideoWithoutPropertyActivity : VideoPreviewBaseActivity<ActivityVideo
     }
 
     private fun startService() {
-        Log.d(tag, "startService")
+        ld { "startService" }
         XP2P.startService(
             this,
             presenter.getProductId(),
@@ -167,7 +168,7 @@ open class VideoWithoutPropertyActivity : VideoPreviewBaseActivity<ActivityVideo
     }
 
     private fun checkDeviceState() {
-        Log.d(tag, "====检测设备状态===")
+        ld { "====检测设备状态===" }
         launch(Dispatchers.IO) {
             getDeviceStatus("${presenter.getProductId()}/${presenter.getDeviceName()}") { isOnline, msg ->
                 launch(Dispatchers.Main) {
@@ -185,7 +186,7 @@ open class VideoWithoutPropertyActivity : VideoPreviewBaseActivity<ActivityVideo
     }
 
     private fun restartService() {
-        Log.d(tag, "====开始重连===")
+        ld { "====开始重连===" }
         XP2P.stopService("${presenter.getProductId()}/${presenter.getDeviceName()}")
         getDeviceP2PInfo()
     }
@@ -296,7 +297,7 @@ open class VideoWithoutPropertyActivity : VideoPreviewBaseActivity<ActivityVideo
 
                 while (!::surface.isInitialized) {
                     delay(50)
-                    L.e("delay for waiting surface.")
+                    le { "delay for waiting surface." }
                 }
                 it.setSurface(surface)
                 it.dataSource = url
@@ -345,14 +346,11 @@ open class VideoWithoutPropertyActivity : VideoPreviewBaseActivity<ActivityVideo
 
     override fun onSurfaceTextureSizeChanged(surface: SurfaceTexture?, width: Int, height: Int) {
         if (!(player.videoWidth > 0 && player.videoHeight > 0)) {
-            Log.e(TAG, "onSurfaceTextureSizeChanged: player video size param must > 0.")
+            le { "onSurfaceTextureSizeChanged: player video size param must > 0." }
             return
         }
 
-        Log.e(
-            tag,
-            "width=${width}, height=${height}, player.videoWidth=${player.videoWidth}, player.videoHeight=${player.videoHeight}"
-        )
+        le { "width=${width}, height=${height}, player.videoWidth=${player.videoWidth}, player.videoHeight=${player.videoHeight}" }
         val layoutParams = binding.vPreview.layoutParams
         if (orientationV) {
             layoutParams.width = (player.videoWidth * (screenWidth * 16 / 9)) / player.videoHeight
@@ -370,7 +368,7 @@ open class VideoWithoutPropertyActivity : VideoPreviewBaseActivity<ActivityVideo
 
     override fun onSurfaceTextureUpdated(surface: SurfaceTexture?) {
         if (!(player.videoWidth > 0 && player.videoHeight > 0)) {
-            Log.e(TAG, "onSurfaceTextureUpdated: player video size param must > 0.")
+            le { "onSurfaceTextureUpdated: player video size param must > 0." }
             return
         }
 
@@ -403,9 +401,9 @@ open class VideoWithoutPropertyActivity : VideoPreviewBaseActivity<ActivityVideo
     }
 
     override fun xp2pEventNotify(id: String?, msg: String?, event: Int) {
-        Log.e(tag, "id=${id}, event=${event}")
+        le { "id=${id}, event=${event}" }
         if (event == 1003) {
-            Log.e(tag, "====event === 1003")
+            le { "====event === 1003" }
             startShowVideoTime = 0L
             launch(Dispatchers.Main) {
                 val content = getString(R.string.disconnected_and_reconnecting, id)
@@ -419,11 +417,11 @@ open class VideoWithoutPropertyActivity : VideoPreviewBaseActivity<ActivityVideo
         } else if (event == 1004 || event == 1005) {
             connectTime = System.currentTimeMillis() - connectStartTime
             if (event == 1004) {
-                Log.e(tag, "====event === 1004")
+                le { "====event === 1004" }
                 checkDeviceState()
             }
         } else if (event == 1010) {
-            Log.e(tag, "====event === 1010, 校验失败，info撞库防止串流： $msg")
+            le { "====event === 1010, 校验失败，info撞库防止串流： $msg" }
         }
     }
 
@@ -608,16 +606,16 @@ open class VideoWithoutPropertyActivity : VideoPreviewBaseActivity<ActivityVideo
     }
 
     override fun surfaceCreated(p0: SurfaceHolder?) {
-        Log.d(tag, "surfaceCreated")
+        ld { "surfaceCreated" }
         openCamera()
     }
 
     override fun surfaceChanged(p0: SurfaceHolder?, p1: Int, p2: Int, p3: Int) {
-        Log.d(tag, "surfaceChanged")
+        ld { "surfaceChanged" }
     }
 
     override fun surfaceDestroyed(p0: SurfaceHolder?) {
-        Log.d(tag, "surfaceDestroyed")
+        ld { "surfaceDestroyed" }
         p0?.removeCallback(this)
     }
 
diff --git a/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/video/preview/WlanVideoPreviewActivity.kt b/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/video/preview/WlanVideoPreviewActivity.kt
index beac29057..3ae027b41 100644
--- a/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/video/preview/WlanVideoPreviewActivity.kt
+++ b/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/video/preview/WlanVideoPreviewActivity.kt
@@ -10,7 +10,6 @@ import android.os.Bundle
 import android.os.Handler
 import android.os.Message
 import android.text.TextUtils
-import android.util.Log
 import android.view.Surface
 import android.view.TextureView
 import android.view.View
@@ -19,6 +18,8 @@ import com.alibaba.fastjson.JSON
 import com.tencent.iot.explorer.link.demo.App
 import com.tencent.iot.explorer.link.demo.R
 import com.tencent.iot.explorer.link.demo.VideoBaseActivity
+import com.tencent.iot.explorer.link.demo.common.log.L.ld
+import com.tencent.iot.explorer.link.demo.common.log.L.le
 import com.tencent.iot.explorer.link.demo.common.util.CommonUtils
 import com.tencent.iot.explorer.link.demo.databinding.ActivityVideoPreviewBinding
 import com.tencent.iot.explorer.link.demo.video.Command
@@ -102,17 +103,14 @@ class WlanVideoPreviewActivity : VideoBaseActivity<ActivityVideoPreviewBinding>(
 
     private fun startPlayer() {
         player = IjkMediaPlayer()
-        Log.e(
-            tag,
-            "start startPlayer productid ${App.data.accessInfo?.productId} devname ${deviceName}"
-        )
+        le { "start startPlayer productid ${App.data.accessInfo?.productId} devname ${deviceName}" }
         if (App.data.accessInfo == null || TextUtils.isEmpty(deviceName)) return
         mHandler.sendEmptyMessageDelayed(MSG_UPDATE_HUD, 500)
 
         Thread(Runnable {
             val id = "${productId}/${deviceName}"
             val started = XP2P.startLanService(id, productId, deviceName, address, port.toString())
-            Log.e(tag, "===================== after startLanService =====================")
+            le { "===================== after startLanService =====================" }
             if (started != 0) {
                 launch(Dispatchers.Main) {
                     var errInfo = ""
@@ -143,13 +141,13 @@ class WlanVideoPreviewActivity : VideoBaseActivity<ActivityVideoPreviewBinding>(
                 val port = XP2P.getLanProxyPort(id)
                 val command =
                     XP2P.getLanUrl(id) + "voice?_protocol=tcp&_port=$port&channel=${channel}"
-                Log.e(tag, "start radio url $command")
-                Log.e(tag, "speakAble id $id")
+                le { "start radio url $command" }
+                le { "speakAble id $id" }
                 XP2P.runSendService(id, command, true)
                 audioRecordUtil.start()
                 return true
             } else {
-                Log.e(tag, "stop radio")
+                le { "stop radio" }
                 audioRecordUtil.stop()
                 XP2P.stopSendService(id, null)
                 return true
@@ -205,7 +203,7 @@ class WlanVideoPreviewActivity : VideoBaseActivity<ActivityVideoPreviewBinding>(
                 binding.ivRight-> command += Command.getPtzRightCommand(channel)
                 binding.ivLeft-> command += Command.getPtzLeftCommand(channel)
             }
-            Log.e(tag, "command $command")
+            le { "command $command" }
 
             Thread(Runnable {
                 App.data.accessInfo?.let {
@@ -214,7 +212,7 @@ class WlanVideoPreviewActivity : VideoBaseActivity<ActivityVideoPreviewBinding>(
                         "${productId}/${deviceName}",
                         command.toByteArray(), command.toByteArray().size.toLong(), 2 * 1000 * 1000
                     ) ?: ""
-                    Log.d(tag, "command result -> $retContent")
+                    ld { "command result -> $retContent" }
                     launch(Dispatchers.Main) {
                         if (TextUtils.isEmpty(retContent)) {
                             retContent = getString(R.string.command_with_error, command)
@@ -288,7 +286,7 @@ class WlanVideoPreviewActivity : VideoBaseActivity<ActivityVideoPreviewBinding>(
             )
 
             it.setSurface(this.surface)
-            Log.e(tag, "switch url $url")
+            le { "switch url $url" }
             it.dataSource = url
 
             it.prepareAsync()
@@ -316,7 +314,7 @@ class WlanVideoPreviewActivity : VideoBaseActivity<ActivityVideoPreviewBinding>(
     override fun avDataRecvHandle(id: String?, data: ByteArray?, len: Int) {}
     override fun avDataCloseHandle(id: String?, msg: String?, errorCode: Int) {}
     override fun onDeviceMsgArrived(id: String?, data: ByteArray?, len: Int): String {
-        Log.d(tag, "==onDeviceMsgArrived: ${data?.let { String(it, StandardCharsets.UTF_8) }}")
+        ld { "==onDeviceMsgArrived: ${data?.let { String(it, StandardCharsets.UTF_8) }}" }
         return "app reply to device"
     }
 
@@ -326,7 +324,7 @@ class WlanVideoPreviewActivity : VideoBaseActivity<ActivityVideoPreviewBinding>(
                 var url = XP2P.getLanUrl(id)
                 val port = XP2P.getLanProxyPort(id)
                 url += "ipc.flv?action=live&_protocol=tcp&quality=high&_crypto=off&_port=$port&channel=${channel}"
-                Log.e(tag, "proxy ===================== $url")
+                le { "proxy ===================== $url" }
                 it.reset()
                 it.setOption(IjkMediaPlayer.OPT_CATEGORY_FORMAT, "analyzemaxduration", 100)
                 it.setOption(IjkMediaPlayer.OPT_CATEGORY_FORMAT, "probesize", 25 * 1024)
diff --git a/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/video/utils/MultipleChannelChooseDialog.java b/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/video/utils/MultipleChannelChooseDialog.java
index 3352d52c6..034c39984 100644
--- a/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/video/utils/MultipleChannelChooseDialog.java
+++ b/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/video/utils/MultipleChannelChooseDialog.java
@@ -1,13 +1,12 @@
 package com.tencent.iot.explorer.link.demo.video.utils;
 
 import android.content.Context;
-import android.util.Log;
 import android.view.LayoutInflater;
 import android.view.View;
-import android.widget.CheckBox;
 import android.widget.Toast;
 
 import com.tencent.iot.explorer.link.demo.R;
+import com.tencent.iot.explorer.link.demo.common.log.L;
 import com.tencent.iot.explorer.link.demo.databinding.PopupMultipleChannelLayoutBinding;
 
 import java.util.ArrayList;
@@ -29,8 +28,10 @@ public void onClick(View view) {
         if (view.getId() == R.id.tv_multiple_cancel) {
             dismiss();
         } else if (view.getId() == R.id.tv_multiple_confirm) {
-            Log.d("MultipleChannelChoose", "checkbox selected: channel0: " + binding.cbChannel1.isChecked()
-                    + ",  channel1: " + binding.cbChannel2.isChecked() + ",  channel2: " + binding.cbChannel3.isChecked() + ",  channel3: " + binding.cbChannel4.isChecked());
+            L.INSTANCE.d(() -> "MultipleChannelChoose",
+                    () -> "checkbox selected: channel0: " + binding.cbChannel1.isChecked() + ",  channel1: " + binding.cbChannel2.isChecked()
+                            + ",  channel2: " + binding.cbChannel3.isChecked() + ",  channel3: " + binding.cbChannel4.isChecked());
+
             ArrayList<Integer> selectChannels = new ArrayList<>();
             if (binding.cbChannel1.isChecked()) selectChannels.add(1);
             if (binding.cbChannel2.isChecked()) selectChannels.add(2);