public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        // Instantiate the list of samples.
        mSamples = new Sample[]{
                new Sample(R.string.title_crossfade, CrossfadeActivity.class),
                new Sample(R.string.title_card_flip, CardFlipActivity.class),
                new Sample(R.string.title_screen_slide, ScreenSlideActivity.class),
                new Sample(R.string.title_zoom, ZoomActivity.class),
                new Sample(R.string.title_layout_changes, LayoutChangesActivity.class),
        };

        setListAdapter(new ArrayAdapter<Sample>(this,
                android.R.layout.simple_list_item_1,
                android.R.id.text1,
                mSamples));
    }
The collection of all samples in the app. This gets instantiated in {@link
#onCreate(Bundle)} because the {@link Sample} constructor needs access to {@link
android.content.res.Resources}.
app/src/main/java/home/smart/fly/animations/ui/activity/demos/AnimationsDemo.java