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androidactionbarsherlock

TactionbarSherlock - having trouble implementing the list navigation

I am trying to work from the ActionbarSherlock example for adding a list navigation. In the example, there is some code like this:

@Override
public void onCreate(Bundle savedInstanceState) {
    setTheme(SampleList.THEME); //Used for theme switching in samples
    super.onCreate(savedInstanceState);

    setContentView(R.layout.list_navigation);
    mSelected = (TextView)findViewById(R.id.text);

    mLocations = getResources().getStringArray(R.array.locations);

    Context context = getSupportActionBar().getThemedContext();
    ArrayAdapter<CharSequence> list = ArrayAdapter.createFromResource(context, R.array.locations, R.layout.sherlock_spinner_item);
    list.setDropDownViewResource(R.layout.sherlock_spinner_dropdown_item);

    getSupportActionBar().setNavigationMode(ActionBar.NAVIGATION_MODE_LIST);
    getSupportActionBar().setListNavigationCallbacks(list, this);
}

and that seems to be it. So I am confused where I can add the titles for the navigation. And also it references 

    ArrayAdapter<CharSequence> list = ArrayAdapter.createFromResource(
            context, R.array.locations, R.layout.sherlock_spinner_item);

and my code is not aware of R.array.locations and gives a syntax error. But that R.array.locations is not in the examples. Should I create a separate file for it in my layout directory?

Thank you!

Solution

  • Regarding your compile error: Did you create an array resource called "locations"?

    /res/values/arrays

    <resources>
    <string-array name="locations">
        <item>Foo</item>
        <item>Bar</item>
        <item>Baz</item>
    </string-array>
</resources>

    Regarding providing special "tiles" for the dropdown: Even though it's called "List Navigation", what you are actually seeing in the Action Bar (both the native one and ActionBarSherlock's) is a Spinner. So you can give it any SpinnerAdapter and it will use that.

    If you aren't familiar with adapters, I highly recommend you watch this video. The only difference between an adapter for a ListView and an adapter for a Spinner is the getDropDownView() method, which creates the views that appear in the dropdown menu (where getView() provides the view shown in the spinner content area).