how to fit the whole image on screen as wallpaper

Question

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 t

Answer 1

Set wallpaper size to your image size:

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

and remember to add permissions: