title: Take automated Screenshot
body: <p>I want to take automated screenshots of a android device every 10 seconds and then save them into a directory.
  I used this method but it doesn't work
  who can help me please!!!</p>
  
  <pre><code>Process sh = Runtime.getRuntime().exec("su");
  OutputStream  os = sh.getOutputStream();
  os.write(("/system/bin/screencap -p /mnt/sdcard/img.png").getBytes("ASCII"));
  os.flush();
  os.close();
  try {
      sh.waitFor();
  } catch (InterruptedException e) {
      e.printStackTrace();
  }
  </code></pre>