Getting The Null Pointer Exception In The GetActionBar Method

I have use menu items on the action bar. but while getting it in the on create method it giving me the null pointer exception. Please help Thanks here is the oncreate method code

Solution 1:

If you use Theme.AppCompat, then extend ActionBarActivity. Also use getSupportActionBar() instead of getActionBar(). You might also need to enable title (but I am not sure if thats true for all android versions) - so requestWindowFeature(Window.FEATURE_NO_TITLE); should be removed - do you have in your theme:

<item name="windowActionBar">false</item>
<item name="android:windowNoTitle">true</item>

by any chance.

Solution 2:

Did you extend ActionBarActivity?

public class MainActivity extends FragmentActivity implements ActionBar.TabListener{


@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    final ActionBar actionBar = getActionBar();
    actionBar.show(); 
    actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
    ...
}

Solution 3:

Use a theme for your application that provides the AcionBar, maybe you can include the appcompact support library.

You can give a look at this post:

Solution 4:

Depends of your version (in Manifest) you need to use getSupportActionBar(); or getActionBar();. Also are you sure what your homeActivy are extending from an Activity.class ?

Solution 5:

Try to use the getSupportedActionBar-Method. I think you use another version of android