CODEWITHSUNDEEP
androidandroid-actionbarandroid-appcompatmaterial-design
user3599378
user3599378

Reputation:

No actionBar with app-compat-v21 library in preferenceactivity?

I'm having problem with ActionBar and app-compat-v21.
ActionBar is shown everywhere except PreferenceActivity
I tried to follow recommendations and made it with Fragments: 

public class PrefsFragment extends PreferenceFragment {
@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    addPreferencesFromResource(R.xml.preferences);
 }
}

and

public class PrefsActivity extends PreferenceActivity {
 public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    getFragmentManager().beginTransaction()
            .replace(android.R.id.content, new PrefsFragment()).commit();
 }
}

However, there's no ActionBar.
BTW, in Styles.xml is set <style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">

What's wrong?

Upvotes: 1

Views: 1273

Answers (2)

Gabriele Mariotti
Gabriele Mariotti

Reputation: 363745

In order to use the new appcompat v21 you have to:

  • extend the AppCompatActivity
  • use a theme which inherits from Theme.AppCompat.(for example Light or NoActionBar)

The PreferenceActivity doesn't extend the AppCompatActivity.

It is the reason why there is no actionbar in your code.

As solution you can create a PreferenceFragment as you are doing and use it in a standard AppCompatActivity.

UPDATED 12/06/2015

With the new 22.1+ appcompat you can use also the AppCompatDelegate to extend AppCompat's support to any Activity.

You can check this official link to AppCompatPreferenceActivity, where you can find an example of this technique.

Upvotes: 4

MarcSB
MarcSB

Reputation: 1040

With the app compat the toolbar needs to be defined in the layout. You can create a layout for the Settings Activity with the toolbar and then add the preference fragment.

For example:

activity_settings.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">

    <include xmlns:android="http://schemas.android.com/apk/res/android"
        android:id="@+id/toolbar"
        layout="@layout/toolbar" />

    <fragment
        android:id="@+id/settings_fragment"
        android:name="com.bla.bla.MyPreferenceFragment"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_below="@id/toolbar" />

</RelativeLayout>

SettingsActivity:

public class SettingsActivity extends ActionBarActivity{
    @Override
    protected void onCreate(final Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_settings);

        Toolbar actionbar = (Toolbar) findViewById(R.id.toolbar);
        actionbar.setTitle("Settings");
        actionbar.setNavigationOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                SettingsActivity.this.finish();
            }
        });
    }

MyPreferenceFragment:

public static class MyPreferenceFragment extends PreferenceFragment {
    @Override
    public void onCreate(final Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        addPreferencesFromResource(R.xml.settings);;
    }
}

edit: Updated the answer to use ActionBarActivity instead of the deprecated PreferenceActivity

Upvotes: 1

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