普通的Canvas可以通过下面的方法来将绘制内容保存为Bitmap
Bitmap bitmap = new Bitmap(width, height, Config.ARGB_8888); Canvas canvas = new Canvas(bitmap); canvas.drawXXX
但问题是,SurfaceView中Canvas是通过lockCanvas获取的,请问这种情况下,该如何将Canvas保存为Bitmap呢??