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Android

Posted by ivan1 ivan1
ivan1 ivan1
545 Points

Why my app has stopped working in emulator after adding a menu

I tried to add menu bar in weather app from this site. Everything worked fine, but when I added onCreateOptionsMenu in main activity and onOptionsItemSelected as noted. 

@Override
public boolean onCreateOptionsMenu(Menu menu) {
    MenuInflater inflater = getMenuInflater();
    inflater.inflate(R.menu.menu_main, menu);
    return true;
}



@Override
public boolean onOptionsItemSelected(MenuItem item) {
    // Handle item selection
    switch (item.getItemId()) {
        case R.id.Zagreb:

            updateDisplay();
            return true;
        case R.id.Rijeka:

            return true;
        case R.id.Osijek:

            updateDisplay();
            return true;
        case R.id.Split:

            return true;

        case R.id.Dubrovnik:

            return true;
        default:
            return super.onOptionsItemSelected(item);
    }
}

here is menu.xml

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

<item
    android:id="@+id/Grad"
    android:showAsAction="always"
    android:title="Gradovi"/>

        <item
            android:id="@+id/Zagreb"
            android:showAsAction="never"
            android:title="Zagreb"/>

        <item
            android:id="@+id/Osijek"
            android:showAsAction="never"
            android:title="Osijek"/>

        <item
            android:id="@+id/Rijeka"
            android:showAsAction="never"
            android:title="Rijeka"/>

        <item
            android:id="@+id/Split"
            android:showAsAction="never"
            android:title="Split"/>

        <item
            android:id="@+id/Dubrovnik"
            android:showAsAction="never"
            android:title="Dubrovnik"/>

</menu>

Rest of the code is same as app weatherApp in teacher notes.

Strange thing is that menu don't show rendered in Preview, why ?