android解决小米手机上选择照片路径为null问题

if (data == null) {  

                return;  

            }  

            uri = data.getData();  

            uri = geturi(data);//解决方案  

            String[] proj = { MediaStore.Images.Media.DATA };  

            Cursor cursor = managedQuery(uri, proj, null, null, null);  

            if(cursor!=null){  

                int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);  

                cursor.moveToFirst();  

                String path = cursor.getString(column_index);// 图片在的路径  

                Intent intent3 = new Intent(this, SYClipActivity.class);  

                intent3.putExtra("path", path);  

                startActivityForResult(intent3, IMAGE_COMPLETE);  

            } 

/**  

     * 解决小米手机上获取图片路径为null的情况  

     * @param intent  

     * @return  

     */  

     public Uri geturi(android.content.Intent intent) {    

            Uri uri = intent.getData();    

            String type = intent.getType();    

            if (uri.getScheme().equals("file") && (type.contains("image/"))) {    

                String path = uri.getEncodedPath();    

                if (path != null) {    

                    path = Uri.decode(path);    

                    ContentResolver cr = this.getContentResolver();    

                    StringBuffer buff = new StringBuffer();    

                    buff.append("(").append(Images.ImageColumns.DATA).append("=")    

                            .append("'" + path + "'").append(")");    

                    Cursor cur = cr.query(Images.Media.EXTERNAL_CONTENT_URI,    

                            new String[] { Images.ImageColumns._ID },    

                            buff.toString(), null, null);    

                    int index = 0;    

                    for (cur.moveToFirst(); !cur.isAfterLast(); cur.moveToNext()) {    

                        index = cur.getColumnIndex(Images.ImageColumns._ID);    

                        // set _id value    

                        index = cur.getInt(index);    

                    }    

                    if (index == 0) {    

                        // do nothing    

                    } else {    

                        Uri uri_temp = Uri    

                                .parse("content://media/external/images/media/"    

                                        + index);    

                        if (uri_temp != null) {    

                            uri = uri_temp;    

                        }    

                    }    

                }    

            }    

            return uri;    

        }