title: Prevent partial Tapjacking - Android
body: <p>I'm working to improve the security of an application and prevent Tapjacking.  For this we have made use of:</p>
  
  <pre><code>filterTouchesWhenObscured = "true"
  </code></pre>
  
  <p>It seems that with this we have managed to protect the application against a situation in which the view was completely covered (<code>FLAG_WINDOW_IS_OBSCURED</code>) but not yet one in which it was partially covered (<code>FLAG_WINDOW_IS_PARTIALLY_OBSCURED</code>).</p>
  
  <p>I really don't know how to handle this last situation, I have read <a href="https://developer.android.com/reference/android/view/MotionEvent.html#FLAG_WINDOW_IS_PARTIALLY_OBSCURED" rel="nofollow noreferrer">here</a> the meaning of the flag but I don't find documentation about how to resolve the situation.</p>
  
  <p>Anyone has faced this issue before or knows how to handle it?</p>
  
  <p>Thanks</p>