title: Android Toast message doesn't show
body: <p>I know there are some other issues regard this problem, however, mine is surprisingly different (at least I think so). </p>
  
  <p>I guess my code is right but I don't have idea why toast message doesn't display. Firstly, I couldn't see toast message in my Fragments. Then I decided to put it in my activity and amazingly it doesn't display here too.</p>
  
  <p>This is code of my Activity which has been extended from FragmentActivity.</p>
  
  <pre><code>@Override
      protected void onCreate(Bundle savedInstanceState)
      {
          super.onCreate(savedInstanceState);
  
          Log.d(TAG, "***************************");
          Log.d(TAG, "*** Application started ***");
          Log.d(TAG, "***************************");
  
          // assign layout to activity
          setContentView(R.layout.activity_main);
  
          mContext = MainActivity.this;
          Toast.makeText(mContext, "Hello World", Toast.LENGTH_SHORT).show();
  
  .
  .
  .
  } 
  </code></pre>
  
  <p>Application works fine without error and just this f.toast message doesn't display!
  I even replaced mContext with getApplicationContext() and I had same result, toast does not display.</p>
  
  <p>Any suggestion would be appreciated. Thanks</p>
  
  <p>===============</p>
  
  <p>Update: When I open Toast class there are some red lines. please look at image below</p>
  
  <p><img src="https://i.stack.imgur.com/2HpsX.png" alt="enter image description here"></p>