/**
* A convenience method to set an alarm in the Alarms content provider.
*
* @return Time when the alarm will fire.
*/
public static long setAlarm(Context context, Alarm alarm) {
int c1 = count(context);
ContentValues values = createContentValues(alarm);
ContentResolver resolver = context.getContentResolver();
resolver.update(
ContentUris.withAppendedId(Alarm.Columns.CONTENT_URI, alarm.id), values, null, null);
int c2 = count(context);
long timeInMillis = calculateAlarm(alarm);
if (alarm.enabled) {
// Disable the snooze if we just changed the snoozed alarm. This
// only does work if the snoozed alarm is the same as the given
// alarm.
// TODO: disableSnoozeAlert should have a better name.
disableSnoozeAlert(context, alarm.id);
// Disable the snooze if this alarm fires before the snoozed alarm.
// This works on every alarm since the user most likely intends to
// have the modified alarm fire next.
clearSnoozeIfNeeded(context, timeInMillis);
}
updateStatusBarIcon(c1, c2, context);
setNextAlert(context);
return timeInMillis;
}
private static void enableAlarmInternal(
final Context context, final Alarm alarm, boolean enabled) {
if (alarm == null) {
return;
}
int c1 = count(context);
ContentResolver resolver = context.getContentResolver();
ContentValues values = new ContentValues(2);
values.put(Alarm.Columns.ENABLED, enabled ? 1 : 0);
// If we are enabling the alarm, calculate alarm time since the time
// value in Alarm may be old.
if (enabled) {
long time = 0;
if (!alarm.daysOfWeek.isRepeatSet()) {
time = calculateAlarm(alarm);
}
values.put(Alarm.Columns.ALARM_TIME, time);
} else {
// Clear the snooze if the id matches.
disableSnoozeAlert(context, alarm.id);
}
resolver.update(
ContentUris.withAppendedId(Alarm.Columns.CONTENT_URI, alarm.id), values, null, null);
int c2 = count(context);
// ��״̬��
updateStatusBarIcon(c1, c2, context);
}
/** Removes an existing Alarm. If this alarm is snoozing, disables snooze. Sets next alert. */
public static void deleteAlarm(Context context, int alarmId) {
ContentResolver contentResolver = context.getContentResolver();
/* If alarm is snoozing, lose it */
disableSnoozeAlert(context, alarmId);
// ��----------------
int c1 = count(context);
setNextAlert(context);
// ----------------------------------
Uri uri = ContentUris.withAppendedId(Alarm.Columns.CONTENT_URI, alarmId);
contentResolver.delete(uri, "", null);
int c2 = count(context);
// ״̬������
updateStatusBarIcon(c1, c2, context);
}