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copied!<p>You can do something like this to code for both versions:</p> <pre><code>/** * Sets the Action Bar for new Android versions. */ @TargetApi(Build.VERSION_CODES.HONEYCOMB) private void actionBarSetup() { if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) { ActionBar ab = getActionBar(); ab.setTitle("My Title"); ab.setSubtitle("sub-title"); } } </code></pre> <p>Then call <code>actionBarSetup()</code> in <code>onCreate()</code>. The <code>if</code> runs the code only on new Android versions and the <code>@TargetApi</code> allows the code to compile. Therefore it makes it safe for both old and new API versions.</p> <p>Alternatively, you can also use <a href="http://actionbarsherlock.com/">ActionBarSherlock</a> (<em>see edit</em>) so you can have the ActionBar on all versions. You will have to do some changes such as making your Activities extend <code>SherlockActivity</code> and calling <code>getSupportActionBar()</code>, however, it is a very good global solution.</p> <h2><strong>Edit</strong></h2> <p>Note that when this answer was originally written, <code>ActionBarSherlock</code>, which has since been <em>deprecated</em>, was the go-to compatibility solution.</p> <p>Nowadays, <a href="https://developer.android.com/tools/support-library/features.html">Google's <code>appcompat-v7</code> library</a> provides the same functionality but is supported (and actively updated) by Google. Activities wanting to implement an <a href="https://developer.android.com/reference/android/support/v7/app/ActionBar.html"><code>ActionBar</code></a> must:</p> <ul> <li>extend <code>AppCompatActivity</code></li> <li>use a <code>Theme.AppCompat</code> derivative</li> </ul> <p>To get an <code>ActionBar</code> instance using this library, the aptly-named <code>getSupportActionBar()</code> method is used.</p>

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