如何在Android中将PictureDrawable保存为JPEG/PNG文件

Question

我有我想保存为图像（JPEG/PNG）的PictureDrawable，但似乎无法找到任何有关此信息的信息。

我试过，但它似乎没有工作

PictureDrawable myDrawable = GetPictureDrawable(); 
Bitmap bitmap = Bitmap.createBitmap(200, 200, Bitmap.Config.ARGB_8888); 
myDrawable.draw(new Canvas(bitmap)); 
bitmap.compress(CompressFormat.JPEG, 100, new FileOutputStream("/MyLocation/MyImage.jpg")); 

什么是我错在做什么？

Answer 1

//Convert PictureDrawable to Bitmap 
private static Bitmap pictureDrawable2Bitmap(PictureDrawable pictureDrawable){ 
     Bitmap bitmap = Bitmap.createBitmap(pictureDrawable.getIntrinsicWidth(),pictureDrawable.getIntrinsicHeight(), Config.ARGB_8888); 
     Canvas canvas = new Canvas(bitmap); 
     canvas.drawPicture(pictureDrawable.getPicture()); 
     return bitmap; 
    }