diff --git a/android/build.gradle b/android/build.gradle
index 40f4f265c..4092c0847 100644
--- a/android/build.gradle
+++ b/android/build.gradle
@@ -1,12 +1,15 @@
 apply plugin: 'com.android.library'
+def safeExtGet(prop, fallback) {
+    rootProject.ext.has(prop) ? rootProject.ext.get(prop) : fallback
+}
 
 android {
-    compileSdkVersion 27
-    buildToolsVersion "23.0.1"
+    compileSdkVersion safeExtGet('compileSdkVersion', 27)
+    buildToolsVersion safeExtGet('buildToolsVersion', '28.0.3')
 
     defaultConfig {
-        minSdkVersion 16
-        targetSdkVersion 27
+        minSdkVersion safeExtGet('minSdkVersion', 16)
+        targetSdkVersion safeExtGet('targetSdkVersion', 27)
         versionCode 1
         versionName "1.0"
 
@@ -22,6 +25,6 @@ android {
 }
 
 dependencies {
-    compile fileTree(include: ['*.jar'], dir: 'libs')
-    compile 'com.facebook.react:react-native:+'
+    implementation fileTree(include: ['*.jar'], dir: 'libs')
+    implementation 'com.facebook.react:react-native:+'
 }
diff --git a/ios/RCTBEEPickerManager/BzwPicker.m b/ios/RCTBEEPickerManager/BzwPicker.m
index 41aea4b99..b87d30ee3 100755
--- a/ios/RCTBEEPickerManager/BzwPicker.m
+++ b/ios/RCTBEEPickerManager/BzwPicker.m
@@ -601,14 +601,16 @@ -(void)cancleAction
     
     
     dispatch_async(dispatch_get_main_queue(), ^{
-        [UIView animateWithDuration:.2f animations:^{
+        [UIView animateWithDuration:.3f animations:^{
             
             [self setFrame:CGRectMake(0, SCREEN_HEIGHT, SCREEN_WIDTH, 250)];
             
         }];
     });
 
-    self.pick.hidden=YES;
+    dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(0.3 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
+        self.pick.hidden=YES;
+    });
 }
 //按了确定按钮
 -(void)cfirmAction
diff --git a/ios/RCTBEEPickerManager/RCTBEEPickerManager.m b/ios/RCTBEEPickerManager/RCTBEEPickerManager.m
index 0215d49e2..ccdb1e6a0 100644
--- a/ios/RCTBEEPickerManager/RCTBEEPickerManager.m
+++ b/ios/RCTBEEPickerManager/RCTBEEPickerManager.m
@@ -120,7 +120,9 @@ + (BOOL)requiresMainQueueSetup
         });
     }
 
-    self.pick.hidden=YES;
+    dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(0.3 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
+        self.pick.hidden=YES;
+    });
 
     return;
 }