title: Focus on EditText in a Popup Window goes the activity to sleep
body: <p>I place an <code>EditText</code> on a <code>PopupWindow</code> in my android project. When set <code>PopupWindow.setFocusable</code> to the false, the soft keyboard will not be show. And when set <code>PopupWindow.setFocusable</code> to the true, the <code>EditText</code> is focused and activity go to sleep!
  Other item on the pop up window works, but back button on the phone and clicking outside the pop up does not close it.
  Thanks in advance.</p>