title: alertDialog - datepicker don't allow to change the date shown
body: <p>I have a problem with alertDialog to manage a datepicker.
  the problem is simple:
  <img src="https://i.stack.imgur.com/jlLLB.png" alt="enter image description here"></p>
  
  <p>I don't want that u can click on the date (in this case just years) and change the value.
  i want just that u can select one of the years showed.</p>
  
  <p><strong>SOLVED</strong>:<br>
  solution:<br></p>
  
  <pre><code>myDatePicker.setDescendantFocusability(DatePicker.FOCUS_BLOCK_DESCENDANTS);
  </code></pre>
  
  <p>source:<br>
  <a href="https://stackoverflow.com/questions/2391216/disable-keyboard-input-on-android-timepicker">Disable keyboard input on Android TimePicker</a></p>