title: Back arrow not visible on Action Bar
body: <p>I am implementing the following code which inherits AppCompatActivity but I can't see the back arrow on Action Bar.</p>
  
  <pre><code> @Override
  public void onCreate(Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);
  
      getSupportActionBar().setDisplayHomeAsUpEnabled(true);
      getSupportActionBar().setDisplayShowHomeEnabled(true);
  </code></pre>
  
  <p><a href="https://i.stack.imgur.com/rTRAU.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/rTRAU.png" alt="enter image description here"></a></p>
  
  <p>I also want to know about how to make the Title Text Left Align.</p>