從Uri取得圖片路徑

有時候想要從URI知道此圖檔的目錄，例如在使用Receiving Content的時候如果想從URI取得此圖檔的目錄可以使用此方法

           try {  
                Uri selectedImage = data.getData();  
                String[] filePathColumn = { MediaStore.Images.Media.DATA };  
  
                Cursor cursor = getContentResolver().query(selectedImage,  
                        filePathColumn, null, null, null);  
                cursor.moveToFirst();  
  
                int columnIndex = cursor.getColumnIndex(filePathColumn[0]);  
                String picturePath = cursor.getString(columnIndex);  
                cursor.close();  
                imageView.setImageBitmap(BitmapFactory.decodeFile(picturePath));  
            } catch (Exception e) {  
                // TODO: handle exception  
                e.printStackTrace();  
            }  

轉自http://blog.csdn.net/shaojie519/article/details/7626962