Android image Drawing (ii) zoom in on the canvas to reduce the problem _android

The frame size of the image does not change when the image in Android zooms in on the canvas.

The original artwork is as follows:

Enlarged: The original picture of the border has not changed, the position is still!

So if you want to place the picture position, you need to do the appropriate position to move it!

Use the following code (place the picture in full screen):

Copy Code code as follows:

Matrix matrix = new Matrix ();
Matrix.postscale (Canvas.getwidth () *1.01f/bmpbg.getwidth (), Canvas.getheight () *1.01f/bmpbg.getheight (), Bmpbg.getwidth ()/2, Bmpbg.getheight ()/2);
Matrix.posttranslate ((Canvas.getwidth ()-bmpbg.getwidth ())/2, (Canvas.getheight ()-bmpbg.getheight ())/2);
Canvas.drawbitmap (BMPBG, Matrix, paint);