How to crop adaptation ImageView after taking a picture?

            
Since I did not set the percentage of the crop box interception photographic images, resulting in the interception of the picture after I found a bit too big picture is displayed in a fixed imageView interception in the picture does not match the original, sometimes too large and sometimes too small, please Technology cattle resolved under QQ mailbox 932367516@qq.com
Reply:
Bitmap scaling operation requires. Related API.
Matrix matrix = new Matrix ();