How can we attach some extra data to a calendar event like files,photos,a simple string etc,..
i used extended properties and able to insert some extra data via extended properties
Uri extendedProperties=Uri.parse("content://com.android.calendar/extendedproperties");
ContentValues extendedValues=new ContentValues();
extendedValues.put("event_id", id);
extendedValues.put("name",key);
extendedValues.put("value",value);
getApplicationContext().getContentResolver().insert(extendedProperties, extendedValues);
and later able to retrieve that data like below
Uri extentdedProperties=Uri.parse("content://com.android.calendar/extendedproperties");
CursorextendedPropertires Cursor=getContentResolver().query(extentdedProperties,null,"event_id = "+Id +",null,null);
It works fine with android 2.2 ... Same code if tested in android 4.0 (ice cream sandwich). It is throwing a error saying that only sync adapters can access content://com.android.calendar/extendedproperties.
So i exectued the query as "callerissyncadapter". Now i am able to insert extended properties. But once event is synced to server , extended properties are being deleted by the server.
Even these extended properties are not fully supported by calendar providers (other than google)
Is there any way to attach some extra data to calendar event other than extendedproperties or can we make use of this extended properties in a more better way.