mon fichier java: comme celui-ci
public class MainActivity extends AppCompatActivity {
Button button;
ImageView imageView;
WallpaperManager wallpaperManager ;
Bitmap bitmap1, bitmap2 ;
DisplayMetrics displayMetrics ;
int width, height;
BitmapDrawable bitmapDrawable ;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
button = (Button)findViewById(R.id.button);
imageView = (ImageView)findViewById(R.id.imageView);
wallpaperManager = WallpaperManager.getInstance(getApplicationContext());
bitmapDrawable = (BitmapDrawable) imageView.getDrawable();
bitmap1 = bitmapDrawable.getBitmap();
button.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
GetScreenWidthHeight();
SetBitmapSize();
wallpaperManager = WallpaperManager.getInstance(MainActivity.this);
try {
wallpaperManager.setBitmap(bitmap2);
wallpaperManager.suggestDesiredDimensions(width, height);
} catch (IOException e) {
e.printStackTrace();
}
}
});
}
public void GetScreenWidthHeight(){
displayMetrics = new DisplayMetrics();
getWindowManager().getDefaultDisplay().getMetrics(displayMetrics);
width = displayMetrics.widthPixels;
height = displayMetrics.heightPixels;
Toast.makeText(MainActivity.this,"width:"+width+", height:"+height,Toast.LENGTH_SHORT).show();
}
public void SetBitmapSize(){
bitmap2 = Bitmap.createScaledBitmap(bitmap1, width, height, false);
}
}
et mon dossier de mise en page. comme ceci:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent">
<ImageView
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:id="@+id/imageView"
android:src="@drawable/sample_image_wallpaper"/>
<Button
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Click here to Set this image as Wallpaper in android programmatically"
android:id="@+id/button"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true"
android:layout_marginBottom="94dp" />
</RelativeLayout>
Espérons que cela aidera.
Comment obtenez-vous le bitmap que vous avez défini pour le gestionnaire de fonds d'écran? – pablobu
plz, vous pouvez essayer mon post. S'il vous plaît – omor