qq源码中的获取屏幕截屏的代码，很有意思。

gistfile1.txt

public static Bitmap screenshot(Context paramContext)
  {
    boolean bool = sLoadSO;
    Bitmap localBitmap = null;
    if (bool);
    try
    {
      byte[] arrayOfByte = getFrameBuffer();
      localBitmap = null;
      if (arrayOfByte == null)
      {
        Process localProcess = Runtime.getRuntime().exec("su");
        DataOutputStream localDataOutputStream = new DataOutputStream(localProcess.getOutputStream());
        localDataOutputStream.writeBytes("chmod 666 /dev/graphics/fb0\n");
        localDataOutputStream.writeBytes("exit\n");
        localDataOutputStream.flush();
        new Thread(localProcess)
        {
          public void run()
          {
            try
            {
              NativeUtil.this.waitFor();
              return;
            }
            catch (InterruptedException localInterruptedException)
            {
              while (true)
                localInterruptedException.printStackTrace();
            }
          }
        }
        .start();
        arrayOfByte = getFrameBuffer();
      }
      localBitmap = null;
      if (arrayOfByte != null)
      {
        ByteBuffer localByteBuffer = ByteBuffer.wrap(arrayOfByte);
        localBitmap = Bitmap.createBitmap(paramContext.getResources().getDisplayMetrics().widthPixels, paramContext.getResources().getDisplayMetrics().heightPixels, Bitmap.Config.ARGB_8888);
        localBitmap.copyPixelsFromBuffer(localByteBuffer);
      }
      return localBitmap;
    }
    catch (Exception localException)
    {
      while (true)
        localException.printStackTrace();
    }
  }
}