Question

Hi i am coding to set a Home Screen Wallpaper. It’s working fine. But my image pixel is totally damaged and then my wallpaper is not fit with the actual size of the home screen. I am try to workout different size of images. Unfortunately it’s not working for me. How to solve it.

My code is here

WallpaperManager wallpaperManager = WallpaperManager.getInstance(this);
Drawable drawable = getResources().getDrawable(R.drawable.newimage);
Bitmap wallpaper = ((BitmapDrawable) drawable).getBitmap();           
try 
{
    wallpaperManager.setBitmap(wallpaper);
} 
catch (IOException e) 
{
    e.printStackTrace();
}

My Screenshot Original Image

My Screenshot Android Emulator Home Screen

Why my original image is damaged here.
How to display My Original Image based on the Emulator Size.

Answer 1

You can try this:

WallpaperManager wallpaperManager = WallpaperManager.getInstance(this);
Drawable drawable = getResources().getDrawable(R.drawable.newimage);
Bitmap wallpaper_source = ((BitmapDrawable) drawable).getBitmap();           
try {
    int w = wallpaperManager.getDesiredMinimumWidth();
    int h = wallpaperManager.getDesiredMinimumHeight();
    int x = (w-wallpaper_source.getWidth())/2;
    int y = (h-wallpaper_source.getHeight())/2;
    Bitmap wallpaper = Bitmap.createBitmap(w, h, Config.ARGB_8888);
    Canvas c = new Canvas(wallpaper);
    c.drawBitmap(wallpaper_source, x,y, null);
    wallpaperManager.setBitmap(wallpaper);
} 
catch (IOException e) 
{
    e.printStackTrace();
}