Android Image Rendering (2) Problems of zoom in and out on the canvas

The border size of the image is not changed when the image is zoomed in and out on the canvas in Android!

The source image is as follows:

After the image is zoomed in, the border of the original image remains unchanged!

Therefore, if you want to place an image, you need to move the image accordingly!

Use the followingCode(Full Screen placement ):

Copy codeThe Code is as follows: matrix = new matrix ();
Matrix. postscale (canvas. getwidth () * 1.01f/bmp bg. getwidth (), canvas. getheight () * 1.01f/bmp bg. getheight (), bmp bg. getwidth ()/2, bmp bg. getheight ()/2 );
Matrix. posttranslate (canvas. getwidth ()-bmp bg. getwidth ()/2, (canvas. getheight ()-bmp bg. getheight ()/2 );
Canvas. drawbitmap (bmp bg, matrix, paint );