Android ActionBar ActionProvider submenu

android, android-actionbar

Solution

I have found the answer here:

Can't display sub-menu for custom ActionProvider

Problem is my onCreateActionView() method doesn't return null.

So thanks to Jason Robinson answer here is how:

@Override
public View onCreateActionView() {
  View view = View.inflate(context, R.layout.action_layout, null);

  final PopupMenu menu = new PopupMenu(mContext, view);
  menu.inflate(R.menu.submenu);
  menu.setOnMenuItemClickListener(this);

  view.setOnClickListener(new OnClickListener() {

    @Override
    public void onClick(View v){
        menu.show();
    }
  });

return view;
}

and submenu.xml contains:

<?xml version="1.0" encoding="utf-8"?>

<menu xmlns:android="http://schemas.android.com/apk/res/android">

    <item
            android:id="@+id/mezzSub1"
            android:title="Mezz 1"
            android:showAsAction="always"></item>
    <item
            android:id="@+id/mezzSub2"
            android:title="Mezz 2"
            android:showAsAction="always"></item>

</menu>

Problem

I just can't get the ActionProvider to show a submenu and I don't undestand why. I have my menu defined in xml: ``` <?xml version="1.0" encoding="utf-8"?> <menu xmlns:android="http://schemas.android.com/apk/res/android"> <item android:id="@+id/dossier_menu" android:showAsAction="always" android:actionProviderClass="com.some.other.mockup.MActionProvider"> </item> </menu> ``` action provider class: ``` public class MActionProvider extends ActionProvider { private static final String TAG = "MActionProvider"; private static final int LIST_LENGTH = 3; private Context context; /** * Creates a new instance. * * @param context Context for accessing resources. */ public MezzActionProvider(Context context) { super(context); this.context = context; } @Override public View onCreateActionView() { View view = View.inflate(context, R.layout.action_layout, null); //view must be returned not tetxView or just buttonView return view; } @Override public boolean hasSubMenu() { Log.d(TAG, "hasSubMenu"); return true; } @Override public boolean onPerformDefaultAction() { Log.d(TAG, "onPerformDefaultAction"); return super.onPerformDefaultAction(); } /**add submenu in code**/ @Override public void onPrepareSubMenu(SubMenu subMenu) { Log.d(TAG, "onPrepareSubMenu"); subMenu.clear(); subMenu.add(Menu.NONE, Menu.NONE, 1,"Mezz 1"); subMenu.add(Menu.NONE, Menu.NONE, 2, "Mezz 2"); } } ``` and action layout is: ``` <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Mezz State ++" android:id="@+id/textView" android:layout_alignParentTop="true" android:layout_centerHorizontal="true" android:layout_margin="4dp"/> <ImageView android:layout_width="wrap_content" android:layout_height="@dimen/buttonHeight" android:src="@android:drawable/ic_menu_add" android:layout_alignParentLeft="true" android:id="@+id/img1" android:layout_below="@id/textView"/> ``` I tried using button instead of image view, even tried adding submenu to the menu item in xml, when I click on the action provider it just doesn't show any submenu I can't figure out why. Thanks

Original source