ExtendedCalendarView

This project is meant for people who want to display a calendar view and show that there are events on certain days. What I did was pull out the calendar view from Google's Calendar application found here. It is still a work in progress but the project should run. The example project pulls events from the google calendar provider and inserts them into the examples database

https://github.com/android/platform_packages_apps_calendar.

Implementation is not the easiest though as there is a lot to it but I hope to filter out stuff that is not needed to try to make it simpler

A quick run though of how to use it:

in your activity before you set the content view you need to create a Calendar Controller

public class MainActivity extends Activity implements EventHandler{

private CalendarController mController;

@Override
protected void onCreate(Bundle savedInstanceState) {
	super.onCreate(savedInstanceState);

	mController = CalendarController.getInstance(this);
	setContentView(R.layout.cal_layout);
    mController.registerEventHandler(R.id.cal_frame, (EventHandler) monthFrag);
    
    mController.registerFirstEventHandler(0, this);
}

The put in the MonthByWeekFragment to your view

FragmentTransaction ft = getFragmentManager().beginTransaction();
			
monthFrag = new MonthByWeekFragment(System.currentTimeMillis(), false);
    ft.replace(R.id.cal_frame, monthFrag).commit();

You also need to override handleEvent, this gets called when you click on a day on the calendar and gets called when you click on an event in the day view

@Override
public void handleEvent(EventInfo event) {
	if (event.eventType == EventType.GO_TO) {
	// day selected on calendsr, start DayFragment to display the day that was clicked
		this.event = event;
		dayView = true;
			FragmentTransaction ft = getFragmentManager().beginTransaction();
			dayFrag = new DayFragment(event.startTime.toMillis(true),1);
			ft.replace(R.id.cal_frame, dayFrag).addToBackStack(null).commit();
	}if(event.eventType == EventType.VIEW_EVENT){
		//TODO do something when an event is clicked	
	}
	
}

Calendar Content Provider

To display events on the calendar I have build a content provider that the calendar uses which replicates how it is done in googles calendar app. things that it needs is the start and end date in a milliseconds timestamp.

those should go in the START and END columns of the database

values.put(CalendarProvider.END, endTimestamp));
values.put(CalendarProvider.START, startTimestamp);

You also need to get the julian start/end day from the timestamp like so

int startDay = Time.getJulianDay(startTimestamp, TimeUnit.MILLISECONDS.toSeconds(tz.getOffset(startTimestamp)));
int endDay = Time.getJulianDay(endTimestamp, TimeUnit.MILLISECONDS.toSeconds(tz.getOffset(endTimestamp)));

the put them in the start day and end day columns of the database

values.put(CalendarProvider.START_DAY, startDay);
values.put(CalendarProvider.END_DAY, endDay);

The last thing you need in the database is the start/end time in minutes and put them in the start time and end time columns

values.put(CalendarProvider.START_TIME, startMin);
values.put(CalendarProvider.END_TIME, endMin);

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