android - 按下imageview时更改所有背景的源图像

Question

当我单击ImageView时，我想更改所有图层的背景，例如，此ImageView的预览为黄色，但是当我单击它时，我想将背景更改为名称为fondoamarillo.jpg的图像，即图层名称是colores，我的kt是Colores

<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:id="@+id/mainln"
    android:layout_height="match_parent"
    android:background="@drawable/fondoazul">

    <ImageView
        android:id="@+id/imageView2"
        android:layout_width="175dp"
        android:layout_height="104dp"
        android:layout_marginStart="70dp"
        android:layout_marginTop="28dp"
        android:layout_marginEnd="71dp"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.505"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        app:srcCompat="@drawable/iccol" />

    <ImageView
        android:id="@+id/imageView3"
        android:layout_width="200dp"
        android:layout_height="52dp"
        android:layout_marginStart="104dp"
        android:layout_marginTop="12dp"
        android:layout_marginEnd="104dp"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.333"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/imageView2"
        app:srcCompat="@drawable/coloress" />

    <ImageView
        android:id="@+id/imageView5"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginStart="16dp"
        android:layout_marginTop="28dp"
        android:onClick="onAtrasConfig"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        app:srcCompat="@drawable/atras" />

    <ImageView
        android:id="@+id/imageView42"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginStart="41dp"
        android:layout_marginTop="89dp"
        android:layout_marginBottom="214dp"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintStart_toEndOf="@+id/imageView44"
        app:layout_constraintTop_toBottomOf="@+id/imageView45"
        app:srcCompat="@drawable/verde" />

    <ImageView
        android:id="@+id/imageView45"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginStart="41dp"
        android:layout_marginTop="55dp"
        app:layout_constraintStart_toEndOf="@+id/imageView41"
        app:layout_constraintTop_toBottomOf="@+id/imageView3"
        app:srcCompat="@drawable/aguamarina" />

    <ImageView
        android:id="@+id/imageView41"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginStart="16dp"
        android:layout_marginTop="55dp"
        android:onClick="changeAllBackground"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/imageView3"
        app:srcCompat="@drawable/amarillo" />

    <ImageView
        android:id="@+id/imageView46"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginStart="41dp"
        android:layout_marginTop="89dp"
        android:layout_marginEnd="16dp"
        android:layout_marginBottom="214dp"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toEndOf="@+id/imageView42"
        app:layout_constraintTop_toBottomOf="@+id/imageView43"
        app:srcCompat="@drawable/rosa" />

    <ImageView
        android:id="@+id/imageView44"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginStart="11dp"
        android:layout_marginTop="89dp"
        android:layout_marginBottom="214dp"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/imageView41"
        app:srcCompat="@drawable/azul" />

    <ImageView
        android:id="@+id/imageView43"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginStart="41dp"
        android:layout_marginTop="55dp"
        android:layout_marginEnd="16dp"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toEndOf="@+id/imageView45"
        app:layout_constraintTop_toBottomOf="@+id/imageView3"
        app:srcCompat="@drawable/rojo" />

</androidx.constraintlayout.widget.ConstraintLayout>

这是.kt:

class Colores : AppCompatActivity() {
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.colores)
    }

    fun onAtrasConfig(view: View){
        try {
            val intent: Intent = Intent(this, Configuracion::class.java)
            startActivity(intent)
        }catch (e: Exception){
            e.printStackTrace()
        }
    }

    fun changeAllBackground(mainLayout:View) {
        val mainln: ConstraintLayout = findViewById(R.id.mainln)
        mainln.background = getDrawable(R.drawable.fondoamarillo)
    }
}

Answer 1

好的，那么您可以使用我刚刚创建的此功能。它始终需要您的 View 持有者的布局。例如，如果您想捕获所有图层，则可以发送自己的主布局，无论哪种主布局都可以，并且可以将背景更改为您告诉我的图像，这并不重要。

Java版本:

    private void changeAllBackground(ViewGroup mainLayout){
        for(int i=0; i<mainLayout.getChildCount();i++){
            View v = mainLayout.getChildAt(i);
            //this is where you put what you want to do with the layer
            v.setBackgroundResource(R.drawable.fondoamarillo);
            if(v instanceof ViewGroup)
                changeAllBackground(((ViewGroup)v));
        }
    }

Kotlin版本:

private fun changeAllBackground(mainLayout:ViewGroup) {
  for (i in 0 until mainLayout.getChildCount())
  {
    val v = mainLayout.getChildAt(i)
    //this is where you put what you want to do with the layer
    v.setBackgroundResource(R.drawable.fondoamarillo)
    if (v is ViewGroup){
        changeAllBackground((v as ViewGroup))
    }
  }
}