我正在使用警报管理器和广播接收器设置通知。我尝试使用警报管理器的 setInexactRepeating 方法，但它不会在 API 19 以上的确切时间发出警报。
所以我得到了使用 setExact 方法并手动设置警报的建议。我不知道我该怎么做。我需要计算一年中每周的日期吗？
如果事件被删除，我也想删除我正在创建的警报。我怎样才能取消这个？使用取消方法我尝试取消警报。为了测试，我尝试设置多个闹钟并将其删除。
如果我删除一个事件，那么该事件的相关警报应该被取消，但可能所有警报都会被取消，因为删除事件后我没有收到任何通知。
我为此使用了唯一的 ID。作为最终静态 int RQS_1 = 1;用于设置闹钟。
有人可以帮我解决这个问题吗？
设置闹钟:
public void setNotificationTime(Calendar c)
{
Date dateFrom = new Date();
df = new SimpleDateFormat("E MMM dd hh:mm:ss zzzz yyyy");
try {
dateFrom = df.parse(startTime);
}
catch (ParseException ex) {
}
dateFrom.getTime();
c.setTime(dateFrom);
hour = c.get(Calendar.HOUR_OF_DAY);
minute = c.get(Calendar.MINUTE);
if(notificationTime.equals("10 Minutes Before"))
{
c.set(Calendar.HOUR_OF_DAY, hour);
c.set(Calendar.MINUTE, minute - 10);
c.set(Calendar.SECOND, 0);
c.set(Calendar.MILLISECOND, 0);
c.set(Calendar.DATE, day);
// c.set(Calendar.DAY_OF_WEEK,);
SetDay(c);
notification = c.getTime();
notificationTime = df.format(notification);
Toast.makeText(getApplicationContext(),notificationTime,Toast.LENGTH_SHORT).show();
intent = new Intent(getBaseContext(),NotificationReceiver.class);
pendingIntent = PendingIntent.getBroadcast(getBaseContext(),RQS_1, intent, 0);
alarmManager = (AlarmManager)getSystemService(Context.ALARM_SERVICE);
alarmManager.setRepeating(AlarmManager.RTC_WAKEUP, c.getTimeInMillis(), AlarmManager.INTERVAL_DAY * 7, pendingIntent);
}
else if(notificationTime.equals("30 Minutes Before"))
{
c.set(Calendar.HOUR_OF_DAY, hour);
c.set(Calendar.MINUTE, minute - 30);
c.set(Calendar.SECOND, 0);
c.set(Calendar.MILLISECOND, 0);
c.set(Calendar.DATE, day);
// c.set(Calendar.DAY_OF_WEEK,);
SetDay(c);
notification = c.getTime();
notificationTime = df.format(notification);
Toast.makeText(getApplicationContext(),notificationTime,Toast.LENGTH_SHORT).show();
intent = new Intent(getBaseContext(),NotificationReceiver.class);
pendingIntent = PendingIntent.getBroadcast(getBaseContext(),RQS_1, intent, 0);
alarmManager = (AlarmManager)getSystemService(Context.ALARM_SERVICE);
alarmManager.setRepeating(AlarmManager.RTC_WAKEUP, c.getTimeInMillis(), AlarmManager.INTERVAL_DAY * 7, pendingIntent);
}
}
我创建了 setDay 方法来设置用户从对话框中选择的日期并设置日期。
setDay函数:
public void SetDay(Calendar c)
{
switch (dayOfWeek)
{
case "Mon":
c.set(Calendar.DAY_OF_WEEK, 2);
c.getTime();
Toast.makeText(getApplicationContext(),dayOfWeek,Toast.LENGTH_SHORT).show();
break;
case "Tue":
c.set(Calendar.DAY_OF_WEEK, 3);
c.getTime();
Toast.makeText(getApplicationContext(),dayOfWeek,Toast.LENGTH_SHORT).show();
break;
}
通知接收者
public class NotificationReceiver extends BroadcastReceiver {
public static int MY_NOTIFICATION_ID = 0;
NotificationManager notificationManager;
Notification myNotification;
EventTableHelper db;
@Override
public void onReceive(Context context, Intent intent) {
Toast.makeText(context, "Time is set", Toast.LENGTH_LONG).show();
db = new EventTableHelper(context);
List<EventData> testSavings = db.getAllEvents();
for (EventData ts : testSavings) {
String log = "from date:" + ts.getFromDate()
+ " ,to date: " + ts.getToDate()
+ " ,location: " + ts.getLocation()
+ " ,title " + ts.getTitle();
Calendar c = Calendar.getInstance();
Date date = new Date();
Date date1 = new Date();
Log.d("Result: ", log);
SimpleDateFormat df = new SimpleDateFormat("E MMM dd hh:mm:ss zzzz yyyy");
SimpleDateFormat df2 = new SimpleDateFormat("hh:mm a");
try {
date = df.parse(ts.getFromDate());
date1 = df.parse(ts.getToDate());
} catch (ParseException ex) {
}
String timeFrom = df2.format(date);
// String startTime = String.valueOf(timeFrom);
String timeTo = df2.format(date1);
// String endTime = String.valueOf(timeTo);
String location = ts.getLocation();
String title = ts.getTitle();
Intent myIntent = new Intent(context, MainActivity.class);
PendingIntent pendingIntent = PendingIntent.getActivity(
context,
0,
myIntent,
PendingIntent.FLAG_UPDATE_CURRENT);
if(location.equals(""))
{
String msg = "From : " + timeFrom + "\nTo : " + timeTo;
myNotification = new NotificationCompat.Builder(context)
.setContentTitle("Event : " + title)
.setContentText(msg)
.setWhen(System.currentTimeMillis())
.setContentIntent(pendingIntent)
.setAutoCancel(true)
.setSmallIcon(R.drawable.eventicon)
.setSound(RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION))
.setStyle(new NotificationCompat.BigTextStyle().bigText(msg))
.setDefaults(Notification.DEFAULT_SOUND)
.build();
}
else
{
String msg = "From : " + timeFrom + "\nTo : " + timeTo + "\nAt : " + location;
myNotification = new NotificationCompat.Builder(context)
.setContentTitle("Event : " + title)
.setContentText(msg)
.setWhen(System.currentTimeMillis())
.setContentIntent(pendingIntent)
.setAutoCancel(true)
.setSmallIcon(R.drawable.eventicon)
.setSound(RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION))
.setStyle(new NotificationCompat.BigTextStyle().bigText(msg))
.setDefaults(Notification.DEFAULT_SOUND)
.build();
}
Log.i("Notify", "Notification");
notificationManager =
(NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
notificationManager.notify(MY_NOTIFICATION_ID, myNotification);
myNotification.flags=Notification.FLAG_AUTO_CANCEL;
}
}
}
是的，忘记添加取消代码:
alarmManager = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
intent = new Intent(getApplicationContext(), NotificationReceiver.class);
pendingIntent = PendingIntent.getBroadcast(getApplicationContext(), RQS_1, intent, 0);
alarmManager.cancel(pendingIntent);
谢谢你..
最佳答案
像这样，
pendingIntent = PendingIntent.getBroadcast(getBaseContext(),RQS_1, intent, 0);
alarmManager.cancel(pendingIntent); //Remove any alarms with a matching Intent
了解更多信息AlarmManager
关于java - 如何使用 setExact 设置重复闹钟以及如何取消重复闹钟？，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/35332474/