android.content.res.Resources$NotFoundException: Resource ID #0x0

[barbeau]

For develop branch:

Occasionally when I go back to the app and it resumes, it crashes and I see this exception:

android.content.res.Resources$NotFoundException: Resource ID #0x0
            at android.content.res.Resources.getValue(Resources.java:1316)
            at android.content.res.Resources.getDrawable(Resources.java:812)
            at android.content.Context.getDrawable(Context.java:403)
            at android.support.v4.content.ContextCompatApi21.getDrawable(ContextCompatApi21.java:26)
            at android.support.v4.content.ContextCompat.getDrawable(ContextCompat.java:319)
            at org.onebusaway.android.ui.AlertList$Adapter.initView(AlertList.java:78)
            at org.onebusaway.android.ui.AlertList$Adapter.initView(AlertList.java:60)
            at org.onebusaway.android.util.ArrayAdapter.getView(ArrayAdapter.java:73)
            at android.widget.AbsListView.obtainView(AbsListView.java:2390)
            at android.widget.ListView.measureHeightOfChildren(ListView.java:1270)
            at android.widget.ListView.onMeasure(ListView.java:1182)

Looks like its caused by this code getting the drawable for the AlertList:

int drawableRight = clickable ? R.drawable.ic_navigation_chevron_right : 0;
int iconColor = R.color.header_text_color;
Drawable drawable = ContextCompat
                    .getDrawable(Application.get().getApplicationContext(), drawableRight);  // <- This line throws the exception
Drawable wrappedDrawable = DrawableCompat.wrap(drawable);
wrappedDrawable = wrappedDrawable.mutate();

[barbeau]

Fixed in develop via 40540cd.