getActionBar() == null When it Shouldn't

Question

I feel like I must be missing something crazy. I am converting my code written to work with ABS (and it did work), and switching it to use the native ActionBar. I set the min SDK to 14 and switched things out for the framework versions, now I can't get the ActionBar to exist.

My Activity:

public class HomeActivity extends Activity {

    @Override
    protected void onCreate(@CheckForNull Bundle icicle) {
        super.onCreate(icicle);
        getWindow().requestFeature(Window.FEATURE_ACTION_BAR);
    }
}

My AndroidManifest:

<uses-sdk android:minSdkVersion="14" android:targetSdkVersion="17"/>
...
<activity android:launchMode="singleTop" android:name=".ui.HomeActivity" android:theme="@android:style/Theme.Holo">
    <intent-filter>
        <action android:name="android.intent.action.MAIN"/>
        <category android:name="android.intent.category.LAUNCHER"/>
    </intent-filter>
    <meta-data android:name="target device" android:value="universal"/>
</activity>

My Robolectric Test:

@RunWith(RobolectricTestRunner.class)
public class HomeActivityTest {

    @Test
    public void testActionBarDisplay() {
        // Given
        final HomeActivity activity_under_testing = new HomeActivity();

        // When
        activity_under_testing.onCreate(null);

        // Then
        assertThat(activity_under_testing.getActionBar())
        .hasDisplayOptions(ActionBar.DISPLAY_SHOW_HOME
                           |ActionBar.DISPLAY_SHOW_TITLE
                           |ActionBar.DISPLAY_USE_LOGO);
    }
}

I'm using FEST-Android for the assertThat (couldn't possibly be the issue).

The issue:

Tests run: 1, Failures: 1, Errors: 0, Skipped: 0, Time elapsed: 7.563 sec <<< FAILURE! testActionBarDisplay(com.imminentmeals.android.base.ui.HomeActivityTest) Time elapsed: 6.588 sec <<< FAILURE! java.lang.AssertionError: expecting actual not to be null at com.imminentmeals.android.base.ui.HomeActivityTest.testActionBarDisplay(HomeActivityTest.java:28)

I should add that I'm using Robolectric 2.0 Alpha 2. I skipped the test, and packaged my apk, and the ActionBar seems to work fine, so I'm feeling like this must be a Robolectric issue? But I thought it should work fine with native Android since it was running native Android code.

Answer 1

This question is rather old but I will post my solution in case someone faces the same problem.

I was facing the same problem as Dandre, where I was using Robolectric 2.3, minSDK 16, and using the native ActonBar and yet getActionBar() kept returnign null. The solution was to ensure my style was referring to a theme which explicitly mentions ActionBar. In my case,I was using Theme.Light. By changing the theme to Theme.Holo.Light.DarkActionBar, I got it to work. I believe Dandre had the same issue, given that his theme was Theme.Holo.

I find it weird that the theme was the cause of the problem, given that it does not affect my app. Maybe someone can explain why?

Answer 2

if you use ActionBarDrawerToggle put getActionBar() inside of onDrawerOpened(View drawerView){} public void onDrawerOpened(View drawerView) { title = getActionBar().getTitle(); getActionBar().setTitle("Open Drawer"); }