如何從imageview（android）獲取圖像大小字節

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我正在處理壁紙應用程序，其中我從獲取圖像Picasa網絡相冊在GridView和Full Screen ImageView中。如何從imageview（android）獲取圖像大小字節

我想用image bytes size, to prevent duplicate save, but i don't know如何從ImageView.`

獲得的圖像字節大小，這是我的代碼保存ImageView加載圖像：

int intHeight = fullImageView.getHeight(); 
      int intWidth = fullImageView.getWidth();      

      String dirname2 = "/Amazing Wallpapers HD/"; 

      File myDir2 = new File(Environment.getExternalStorageDirectory() 
        .getPath() + dirname2); 

      myDir2.mkdirs(); 

      String fname2 = "image" + intHeight+ intWidth +".jpeg"; 
      File file2 = new File(myDir2, fname2); 

      if (file2.exists()) 
       file2.delete(); 
      try { 
       FileOutputStream out = new FileOutputStream(file2); 
       bitmap.compress(Bitmap.CompressFormat.JPEG, 100, out); 
       out.flush(); 
       out.close(); 

      } catch (Exception e) { 
       Toast.makeText(_context, "failed", Toast.LENGTH_SHORT).show(); 
      }

注：我問有關圖像的大小以字節或千字節爲單位。

來源

2014-11-24 android question