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Lee hyungjun/step.03 #11

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e6483b8
[Fix] 강의 자료 수정
jinsu4755 Dec 31, 2020
302019d
[Feat] Step.03 데이터 바인딩 예제 실습
LEE-HYUNGJUN Jan 1, 2021
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1 change: 1 addition & 0 deletions .idea/gradle.xml
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10 changes: 5 additions & 5 deletions app/src/main/java/sotp/semina/practicegitanddatabinding/MainActivity.kt
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Original file line number Diff line number Diff line change
Expand Up @@ -11,21 +11,21 @@ class MainActivity : AppCompatActivity() {


private lateinit var binding: ActivityMainBinding
val editText = ObservableField<String>()
var editText = ObservableField<String>()
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@jinsu4755 jinsu4755 Jan 1, 2021

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오우 이 ObservableField는 내부 값이 알아서 변경되는 친구이기 때문에 해당 인스턴스를 var로 변경가능하게 해줄 필요가 없어!


override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
binding = DataBindingUtil.setContentView(this, R.layout.activity_main)
binding.mainActivity = this
binding.activity = this
binding.userProfile = UserData(IMAGE_URL, DEFAULT_USER_NAME)
}

private fun setProfileName(content: String) {
binding.userProfile = UserData(IMAGE_URL, content)
binding.userProfile = UserData(IMAGE_URL,content)
}

fun changeUserNameEvent() {
setProfileName(editText.get() ?: DEFAULT_USER_NAME)
fun changeName(){
setProfileName(editText.get()?: DEFAULT_USER_NAME)
}

companion object {
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13 changes: 7 additions & 6 deletions app/src/main/res/layout/activity_main.xml
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Expand Up @@ -4,13 +4,12 @@
xmlns:tools="http://schemas.android.com/tools">

<data>

<variable
name="userProfile"
type="sotp.semina.practicegitanddatabinding.UserData" />

<variable
name="mainActivity"
name="activity"
type="sotp.semina.practicegitanddatabinding.MainActivity" />
</data>

Expand All @@ -35,37 +34,39 @@
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="16dp"
android:text="@{userProfile.userName}"
android:textColor="@color/black"
android:textSize="20sp"
android:text="@{userProfile.userName}"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/image_profile_image"
tools:text="profile name" />


<EditText
android:id="@+id/input_changed_profile"
android:text="@={activity.editText}"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginStart="16dp"
android:layout_marginTop="16dp"
android:layout_marginEnd="16dp"
android:text="@={mainActivity.editText}"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/text_profile_name" />


<Button
android:id="@+id/button_profile_change_button"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginStart="16dp"
android:layout_marginTop="16dp"
android:layout_marginEnd="16dp"
android:onClick="@{()->mainActivity.changeUserNameEvent()}"
android:text="Change"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
android:text="Change"
android:onClick="@{()->activity.changeName()}"
app:layout_constraintTop_toBottomOf="@+id/input_changed_profile" />

</androidx.constraintlayout.widget.ConstraintLayout>
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