我有三个问题:
1)到目前为止我已经实现了这个:
public final class CalculateTime {
public int iHour;
public int iMinute;
public Calendar calendar;
private void calculateRandomNumbers() {
Random randomNumberGenerator = new Random();
iHour = randomNumberGenerator.nextInt(19 - 9) + 9;
iMinute = randomNumberGenerator.nextInt(59);
}
public void calculateRandomTime() {
calculateRandomNumbers();
calendar = GregorianCalendar.getInstance();
calendar.setTime(new Date());
calendar.set(Calendar.HOUR_OF_DAY, iHour);
calendar.set(Calendar.MINUTE, iMinute);
}
}
所以通知应该在 9 点到 19 点之间的任何时间推送一次。但通知会在 9 点到 19 点之间发送两次。
2)当计算过去时,立即推送通知。
3) 我想每周发送一次通知,我该如何实现?我努力了:
// For Monday
calendar.set(Calendar.DAY_OF_WEEK, 2)
但我不确定这是否正确,因为我无法轻易测试。(我每次都等不了一周!):/
更多代码,设置警报:
public final class NotificationService extends IntentService {
public static final String DESCRIPTION = "description";
public static final String HEADLINE = "headline";
private static final int FM_NOTIFICATION_ID = 0;
public NotificationService() {
super("NotificationService");
}
@Override
protected void onHandleIntent(Intent intent) {
/*
* This method is invoked whenever an intent for this service is fired.
* The actual firing is done by the AlarmManager in the
* TodoEntriesAdapter, but really we don't care at this point where
* exactly the intent came from.
*/
String description = intent.getStringExtra(DESCRIPTION);
String headline = intent.getStringExtra(HEADLINE);
addNotification(description, headline);
}
private void addNotification(String description, String headline) {
NotificationCompat.Builder builder =
new NotificationCompat.Builder(this)
.setSmallIcon(R.drawable.ic_launcher)
.setContentTitle(headline)
.setContentText(description)
.setAutoCancel(true);
Intent notificationIntent = new Intent(this, ReadNotification.class);
notificationIntent.putExtra("description", description);
notificationIntent.putExtra("headline", headline);
PendingIntent contentIntent = PendingIntent.getActivity(this, 0, notificationIntent,
PendingIntent.FLAG_UPDATE_CURRENT);
builder.setContentIntent(contentIntent);
// Add as notification
NotificationManager manager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
manager.notify(FM_NOTIFICATION_ID, builder.build());
}
}