Android 安卓壁纸/背景尺寸
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Android wallpaper/background dimensions
提问by hpique
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)?
对于各种 Android 屏幕配置（低、中、高密度的小屏幕、普通屏幕和大屏幕），首页壁纸/背景的默认尺寸是什么？
Are 9-patch PNG files supported for the wallpaper? Should I be using these instead?
墙纸是否支持 9-patch PNG 文件？我应该改用这些吗？
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.
我在 API 级别 5 中找到了一种方法，可以为您提供最小的壁纸尺寸，但我也希望支持以前版本的 Android。
Thanks!
谢谢！
回答by Romain Guy
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.
墙纸的宽度是纵向模式下设备的两倍。因此，Nexus One 上为 960x800，Droid 上为 960x854，G1/Magic/Hero 上为 640x480，等等。
回答by Christopher Orr
This article on the Android Developers' siteshows the range of screen resolutions for each density.
Android 开发人员网站上的这篇文章显示了每种密度的屏幕分辨率范围。
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.
我相信壁纸必须与屏幕分辨率相匹配，并且不会被拉伸。例如，如果您创建一个具有高屏幕密度（如 480x854）的新模拟器，您就会看到这一点。默认主屏幕背景居中，顶部和底部有大黑带。
The WallpaperManagerAPIindicates that you must use a PNG- or JPEG-format image, even if you use the setResource()method — the resource mustbe a Bitmapand so not a nine-patch or other type of Drawable.
该WallpaperManagerAPI表示您必须使用PNG-或JPEG格式的图像，即使你使用的setResource()方法-资源必须是Bitmap等不九宫或其他类型的Drawable。
回答by Renate
Don't guess, ask the WallpaperManager:
不要猜，问问墙纸管理器：
manager = WallpaperManager.getInstance(this);
width = manager.getDesiredMinimumWidth();
height = manager.getDesiredMinimumHeight();
