没什么好说的就直接上代码吧

 1 public void cropImage(View view){
 2         Intent intent = new Intent();
 3         
 4         Bundle myExtras = new Bundle();
 5         myExtras.putBoolean("return-data", true);
 6         intent.putExtras(myExtras);
 7 
 8         
 9         intent.setAction("com.android.camera.action.CROP");
10         intent.addCategory("android.intent.category.DEFAULT");
11 //        intent.setData(Uri.fromFile(new File("sdcard/img.JPG")));
12 //        intent.setType("image/*");13         intent.setDataAndType(Uri.fromFile(new File("sdcard/img.JPG")),"image/*");
14         startActivityForResult(intent, 0);
15     }
16     
17     @Override
18   protected void onActivityResult(int requestCode, int resultCode, Intent data) {
19 if(data!=null){
20             Parcelable imagedata  =  (Parcelable) data.getExtras().get("data");
21             iv.setImageBitmap((Bitmap) imagedata);
22             
23         }
24 super.onActivityResult(requestCode, resultCode, data);
25     }

新闻名称：调用系统代码裁剪照片-创新互联
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