Add back button to action bar

Question

I have been trying to add a back button to the action bar.

I want my view to look like this:

I want to add the back button in the left of the action bar.

I added this code

ActionBar actionBar = getActionBar();

actionBar.setDisplayHomeAsUpEnabled(true);

but it doesn't work.

How can I fix this?

Answer 1

You'll need to check menuItem.getItemId() against android.R.id.home in the onOptionsItemSelected method

Duplicate of Android Sherlock ActionBar Up button

Answer 2

Use this to show back button and move to previous activity,

final ActionBar actionBar = getSupportActionBar();
        assert actionBar != null;
        actionBar.setDisplayHomeAsUpEnabled(true);
        actionBar.setHomeAsUpIndicator(R.drawable.back_dark);


@Override
    public boolean onOptionsItemSelected(final MenuItem item) {

        switch (item.getItemId()) {
            case android.R.id.home:
                onBackPressed();
                return true;
            default:
                return super.onOptionsItemSelected(item);
        }
    }

Answer 3

if anyone else need the solution

@Override
public boolean onOptionsItemSelected(MenuItem item) {
    int id = item.getItemId();

    if (id == android.R.id.home) {
        onBackPressed();
    }

    return super.onOptionsItemSelected(item);
}

Answer 4

Add this line in onCreate() method

getSupportActionBar().setDisplayHomeAsUpEnabled(true);

then Override this method

 @Override
    public boolean onSupportNavigateUp(){
        finish();
        return true;
    }

Answer 5

this one worked for me:

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_your_activity);
    getSupportActionBar().setDisplayHomeAsUpEnabled(true);
    // ... other stuff
}

@Override
public boolean onSupportNavigateUp(){
    finish();
    return true;
}

The method onSupportNavigateUp() is called when you use the back button in the SupportActionBar.

Answer 6

There are two ways to approach this.

Option 1: Update the Android Manifest If the settings Activity is always called from the same activity, you can make the relationship in the Android Manifest. Android will automagically show the 'back' button in the ActionBar

<activity
    android:name=".SettingsActivity"
    android:label="Setting Activity">
    <meta-data
        android:name="android.support.PARENT_ACTIVITY"
        android:value="com.example.example.MainActivity" />
</activity>

Option 2: Change a setting for the ActionBar If you don't know which Activity will call the Settings Activity, you can create it like this. First in your activity that extends ActionBarActivity (Make sure your @imports match the level of compatibility you are looking for).

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_settings_test);
    ActionBar actionBar = getSupportActionBar();
    actionBar.setHomeButtonEnabled(true);
    actionBar.setDisplayHomeAsUpEnabled(true);
}

Then, detect the 'back button' press and tell Android to close the currently open Activity.

@Override
public boolean onOptionsItemSelected(MenuItem item) {
    switch (item.getItemId()) {
        case android.R.id.home:
            // app icon in action bar clicked; goto parent activity.
            this.finish();
            return true;
        default:
            return super.onOptionsItemSelected(item);
    }
}

That should do it!