How To Fit The Whole Image On Screen As Wallpaper

I am developing an app which picks an image from the gallery and then sets that image as the wallpaper. But here problem is that only part of image is set as wallpaper not the whol

Solution 1:

Set wallpaper size to your image size:

WallpaperManagerwm= (WallpaperManager) getSystemService(WALLPAPER_SERVICE);
wm.setBitmap(bitmap);
wm.suggestDesiredDimensions(w, h);

and remember to add permissions:

<uses-permissionandroid:name="android.permission.SET_WALLPAPER_HINTS"/><uses-permissionandroid:name="android.permission.SET_WALLPAPER"/>

Solution 2:

Pass width height to wallpaper manager like this :

final WallpaperManager wallpaperManager = (WallpaperManager)getSystemService(
                Context.WALLPAPER_SERVICE);    

Bitmap myBitmap = Bitmap.createScaledBitmap(Const.cropped_bitmap, wallpaperManager.getDesiredMinimumWidth(), wallpaperManager.getDesiredMinimumHeight(), true);
wallpaperManager.suggestDesiredDimensions(wallpaperManager.getDesiredMinimumWidth(), wallpaperManager.getDesiredMinimumHeight());

try {

    wallpaperManager.setBitmap(myBitmap);
    Toast.makeText(CropImageActivity.this, CropImageActivity.this.getString(R.string.wallpaper_has_been_set), 0).show();
} catch (IOException e) {
    e.printStackTrace();
    Toast.makeText(CropImageActivity.this, "Wallpaper not set", 0).show();
}

Do not forget to add permission :

<uses-permissionandroid:name="android.permission.SET_WALLPAPER_HINTS"/><uses-permissionandroid:name="android.permission.SET_WALLPAPER"/>