我正在开发一个相当简单的应用程序。该应用程序的底层代码如下:...mRootContentView=getWindow().getDecorView().findViewById(android.R.id.content));int[]screenDimensions=AndroidUtils.getScreenDimesions(getContext());bitmap=Bitmap.createBitmap(screenDimensions[0],screenDimensions[1],Bitmap.Config.ARGB_8888);Canvasc=newCanvas(bitma