getSupportActionBar The method getSupportActionBar is undefined for the type TaskActivity Why

Question

I was recommended to extend my Activity class from ActionBarActivity  Here is the previous code   import android support v7 app ActionBar  import android support v7 app ActionBarActivity     public class MainActivity extends Activity      Override protected void onCreate Bundle savedInstanceState        super onCreate savedInstanceState       setContentView R layout activity main                I wrote new application and followed advice   import android os Bundle      import android support v7 app ActionBar      import android support v7 app ActionBarActivity                   public class MainActivity extends ActionBarActivity               Override           public void onCreate Bundle savedInstanceState                super onCreate savedInstanceState               ActionBar actionBar  getSupportActionBar                actionBar setDisplayHomeAsUpEnabled true                           setContentView R layout activity main                           Override           public boolean onCreateOptionsMenu Menu menu                getMenuInflater   inflate R menu main  menu               return true                                      If I use ACtionBarActivity instead of Activity  I get the following error on the phone  when I try to run it      The method getSupportActionBar   is undefined for the type TaskActivity

User · Answer

Your class needs to extend from ActionBarActivity  rather than a plain Activity in order to use the getSupport    methods   Update  2015 04 23   With the release of Android Support Library 22 1  you should now extend AppCompatActivity  Also  you no longer have to extend ActionBarActivity or AppCompatActivity  as you can now incorporate an AppCompatDelegate instance in any activity

User · Answer

Here is another solution you could have used  It is working in my app          Override       public void onCreate Bundle savedInstanceState            super onCreate savedInstanceState           android support v7 app ActionBar actionBar  getSupportActionBar            actionBar setDisplayHomeAsUpEnabled true                       setContentView R layout activity main    Then you can get rid of that import for the one line ActionBar use

User · Answer

You have to change the extends Activity to extends  AppCompactActivity then try set and getSupportActionBar

User · Answer

If you are extending from an AppCompatActivity and are trying to get the ActionBar from the Fragment  you can do this    ActionBar mActionBar     AppCompatActivity  getActivity    getSupportActionBar

User · Answer

Can you set the ActionBar before you set the Contient View   This order would be better      Override   public void onCreate Bundle savedInstanceState        super onCreate savedInstanceState       setContentView R layout activity main        ActionBar actionBar  getSupportActionBar        actionBar setDisplayHomeAsUpEnabled true

User · Answer

If you are already extending from ActionBarActivity and you are trying to get the action bar from a fragment   ActionBar mActionBar    ActionBarActivity getActivity    getSupportActionBar

User · Answer

Here is the answer of my question  I ve asked that again with some remarks  How to add support libraries

[android] getSupportActionBar() The method getSupportActionBar() is undefined for the type TaskActivity. Why?

Examples related to android

Examples related to android-actionbar-compat