如何將Drawable轉換爲位圖？ - How to convert a Drawable to a Bitmap?

問題：

I would like to set a certain Drawable as the device's wallpaper, but all wallpaper functions accept Bitmap s only. 我想將某個Drawable設置爲設備的牆紙，可是全部牆紙功能僅接受Bitmap 。 I cannot use WallpaperManager because I'm pre 2.1. 個人2.1版以前沒法使用WallpaperManager 。

Also, my drawables are downloaded from the web and do not reside in R.drawable . 另外，個人可繪製對象是從Web下載的，並不位於R.drawable 。

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解決方案：

參考一： https://stackoom.com/question/Cjim/如何將Drawable轉換爲位圖
參考二： https://oldbug.net/q/Cjim/How-to-convert-a-Drawable-to-a-Bitmap