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Android

Posted by Wei-Ting Chen
Wei-Ting Chen
7,632 Points

What should I do if my MainActivity extends from ActionBarActivity?

Hi everyone, my MainActivity extends from ActionBarActivity as shown below,what should I do? Should I still change it into "public class MainActivity extends FragmentActivity"? Thanks!

public class MainActivity extends ActionBarActivity implements ActionBar.TabListener {

   public static final String TAG=MainActivity.class.getSimpleName();
   //ignore the rest
}
Wei-Ting Chen
Wei-Ting Chen
7,632 Points

this question is from this course (https://teamtreehouse.com/library/build-a-selfdestructing-message-android-app/using-fragments-for-tabs/modifying-tabs-from-the-template)

1 Answer

Danial Goodwin
Danial Goodwin
13,247 Points

ActionBarActivity "extends" FragmentActivity. So, basically, you can use it in it's place.

To see this for yourself, in your IDE (Eclipse or Android Studio), you should be able to ctrl+click on ActionBarActivity and be taken to the source code for it. You'll see that it more accurately extends android.support.v4.app.FragmentActivity. And, the teacher's notes for that course provide additional info for using the FragmentActivity from the support library.

More info: https://developer.android.com/reference/android/support/v7/app/ActionBarActivity.html

Wei-Ting Chen
Wei-Ting Chen
7,632 Points

thanks :) 謝謝你