Android™ Application Development - Bahar Ali Khan

Chapter 5: Intents, Broadcast Receivers, Adapters, and the Internet
}
(ListView)this.findViewById(R.id.earthquakeListView);
int layoutID = android.R.layout.simple_list_item_1;
aa = new ArrayAdapter(this, layoutID , earthquakes);
earthquakeListView.setAdapter(aa);
refreshEarthquakes();
The Internet lookup is currently happening on the main UI thread. This is bad form as the application
will become unresponsive if the lookup takes longer than a few seconds. In Chapter 8, you’ll learn how
to move expensive or time-consuming operations like this onto the background thread.
9. If you run your project, you should see a List View that features the earthquakes from the last
24 hours with a magnitude greater than 2.5, as shown in the screenshot in Figure 5-6.
Figure 5-6
10. There are only two more steps to make this a more useful application. First, create a new menu
item to let users refresh the earthquake feed on demand.
10.1. Start by adding a new external string for the menu option.
Refresh Earthquakes
10.2 Then override the Activity’s onCreateOptionsMenu and onOptionsItemSelected
methods to display and handle the refresh earthquakes menu item.
static final private int MENU_UPDATE = Menu.FIRST;
@Override
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