Android wallpaper/background dimensions
Which are the default dimension of the Home wallpaper/background for the various Android screen configurations (small, normal and large screens with low, medium and high density)?
Are 9-patch PNG files supported for the wallpaper? Should I be using these instead?
I found a method in API level 5 that gives you the minimum size of the wallpaper, but I would like to support previous versions of Android as well.
Thanks!
Asked by: Daryl379 | Posted: 20-01-2022
Answer 1
A wallpaper is twice as wide as the device held in portrait mode. So 960x800 on a Nexus One, 960x854 on a Droid, 640x480 on a G1/Magic/Hero, etc.
Answered by: Fiona130 | Posted: 21-02-2022Answer 2
This article on the Android Developers' site shows the range of screen resolutions for each density.
I believe the wallpapers have to match the screen resolution and are not stretched. You can see this if, for example, you create a new emulator with a high screen density like 480x854. The default home screen background is centred, with large black bands at the top and bottom.
The WallpaperManager API indicates that you must use a PNG- or JPEG-format image, even if you use the setResource() method — the resource must be a Bitmap and so not a nine-patch or other type of Drawable.
Answer 3
Don't guess, ask the WallpaperManager:
manager = WallpaperManager.getInstance(this);
width = manager.getDesiredMinimumWidth();
height = manager.getDesiredMinimumHeight();
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