無法從Android的內部存儲器中獲取圖像？

Question

File file = new File(Environment.getExternalStorageDirectory() + "/" + Environment.DIRECTORY_DCIM + "/Pics/"); 
if (!file.exists()) { 
    file.mkdirs(); 
} 
File[] pictures = file.listFiles(); 

文件存在返回true，但圖片返回null

Answer 1

使用ContentResolver的找到圖像。

Uri photo = data.getData(); 
    String[] projection = {MediaStore.MediaColumns.DATA}; 
     Cursor cursor = getActivity().getContentResolver().query(photo, projection, null, null, null); 
     int column_index = cursor.getColumnIndexOrThrow(MediaStore.MediaColumns.DATA); 
     cursor.moveToFirst(); 

     textureName = cursor.getString(column_index); 

     try { 
      Bitmap bitmap = BitmapFactory.decodeFile(textureName); 


     } catch (IOException ioEx) { 
       ioEx.printStackTrace(); 
     }