I walked into (imho) strange behaviour regarding the Menu of Android.
The Problem:
When you place your finger on the menu item (in form of a water-drop) (which is parent of the submenu/group) and swipe it down, select an option and release your finger, everything works out fine.
BUT afterwards you're not able to press the drop menu item a second time.
What I have:
This is how it looks inside the App:
1 . Menu registered like this:
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.main, menu);
...
}
2 . The Style for the Menu is something like this: (The group does not seem to be direct responsible)
<menu xmlns:android="http://schemas.android.com/apk/res/android">
...
<item ... >
<menu>
<group android:checkableBehavior="single">
<item
android:id="@+id/menu_fuelTypeDiesel" />
<item
android:id="@+id/menu_fuelTypeE5" />
<item
android:id="@+id/menu_fuelTypeE10" />
</group>
</menu>
</item>
...
</menu>
3 . An onOptionsItemSelected-Listener with a Switch-Case-Statement containing something like the following:
case R.id.menu_fuelTypeDiesel:
someMethod(item);
break;
Where someMethod calls item.setChecked(true); and some unimportant stuff.
What's interesting aswell: When you select another menu Item, which has not been shown on the ActionBar, you can press the Drop afterwards again.
I guess this is a kind of bug within Android?
