Uri originalUri = data.getData();        //获得图片的uri 
 bm = MediaStore.Images.Media.getBitmap(resolver, originalUri);        
 //显得到bitmap图片
 imgShow.setImageBitmap(bm);

http://blog.csdn.net/qq435757399/article/details/8118528

http://blog.csdn.net/dxj007/article/details/8124025