如何将Drawable转换为位图？ - How to convert a Drawable to a Bitmap?

问题：

I would like to set a certain Drawable as the device's wallpaper, but all wallpaper functions accept Bitmap s only. 我想将某个Drawable设置为设备的墙纸，可是全部墙纸功能仅接受Bitmap 。 I cannot use WallpaperManager because I'm pre 2.1. 个人2.1版以前没法使用WallpaperManager 。

Also, my drawables are downloaded from the web and do not reside in R.drawable . 另外，个人可绘制对象是从Web下载的，并不位于R.drawable 。

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解决方案：

参考一： https://stackoom.com/question/Cjim/如何将Drawable转换为位图
参考二： https://oldbug.net/q/Cjim/How-to-convert-a-Drawable-to-a-Bitmap