Back button in title bar? [duplicate]

Question

This question already has answers here:

Android - Back button in the title bar (26 answers)

Closed 9 years ago.

I want to put one back button in title bar area to go on back activity in Android app how to put that button.

Like there is in this image.

Answer 1

Assign a parent Activity in Manifest.xml like this :

<activity
    android:name="com.example.myfirstapp.DisplayMessageActivity"
    android:label="@string/title_activity_display_message"
    android:parentActivityName="com.example.myfirstapp.MainActivity" >
    <!-- The meta-data element is needed for versions lower than 4.1 -->
    <meta-data
        android:name="android.support.PARENT_ACTIVITY"
        android:value="com.example.myfirstapp.MainActivity" />
</activity>

Then in Activity's onCreate():

ActionBar actionBar = getActionBar();
actionBar.setDisplayHomeAsUpEnabled(true);

And at last in onOptionsItemSelected :

@Override
public boolean onOptionsItemSelected(MenuItem item) {
    switch (item.getItemId()) {
    case android.R.id.home:
        NavUtils.navigateUpFromSameTask(this);
        return true;
    }
    return super.onOptionsItemSelected(item);
 }

Here is more if you need :

Android Docs