Question

我正在尝试创建一个设置页面，用户可以在其中设置通知的时间。

我有时间以这种方式使用时间选择器：

public void onClick(View v) {

    Calendar mcurrentTime = Calendar.getInstance();
    int hour = mcurrentTime.get(Calendar.HOUR_OF_DAY);
    int minute = mcurrentTime.get(Calendar.MINUTE);
    mTimePicker = new TimePickerDialog(Impostazioni.this, new TimePickerDialog.OnTimeSetListener() {

        @Override
        public void onTimeSet(TimePicker timePicker, int selectedHour, int selectedMinute) {

            ViewOra.setText( selectedHour + ":" + selectedMinute);
            ora=selectedHour; minuti=selectedMinute;   
            setNotifiche(selectedHour,selectedMinute); //i call the method set notification 
        }
    }, hour, minute, true);//Yes 24 hour time
    mTimePicker.setTitle("Select Time");
    mTimePicker.show();
    Intent notifiche = new Intent(Impostazioni.this , Notifiche.class);

这是我创建警报管理器的方法setNotification

public void setNotifiche(int h,int m) {

    int hour=h; int minute=m;
    Intent myIntent = new Intent(this , Notifiche.class);     
    AlarmManager alarmManager = (AlarmManager)getSystemService(ALARM_SERVICE);
    PendingIntent pendingIntent = PendingIntent.getService(Impostazioni.this, 0, myIntent, 0);

    Calendar calendar = Calendar.getInstance();
    calendar.set(Calendar.HOUR_OF_DAY, hour);
    calendar.set(Calendar.MINUTE, minute);
    calendar.set(Calendar.SECOND, 00);

    alarmManager.setRepeating(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), 24*60*60*1000 , pendingIntent);
}

最后这是Notifiche.class服务，我把通知发送到了：

public void onCreate() {   

    Toast.makeText(this, "Notifiche", Toast.LENGTH_LONG).show();

    Intent intent = new Intent(this,Impostazioni.class);
    PendingIntent pending = PendingIntent.getActivity(this, 0, intent, 0);
    NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(this).setSmallIcon(R.drawable.ic_launcher).setContentTitle("Test").setContentText("Attempt n1").setContentIntent(pending);

    NotificationManager manager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
    manager.notify(0, mBuilder.build());
}

代码似乎有用，我的意思是当我在应用程序中午餐并在设置页面中设置特定时间时，但是如果我尝试再次设置则没有任何反应。我哪里错了？

Answer 1

进行两项更改并检查其是否有效：在setNotifiche

中

PendingIntent pendingIntent = PendingIntent.getService(Impostazioni.this, 0, myIntent, PendingIntent.FLAG_UPDATE_CURRENT);

在服务中

PendingIntent pending = PendingIntent.getActivity(this, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT );

如果有效，请将其标记为正确。

Answer 2

它也可能与你选择的ID有关。如果已存在您的ID 0的通知并且已创建另一个ID 0的通知，则不会播放新的通知声音。您必须先取消现有通知，或使用其他ID。考虑：

int id = new Random().nextInt(1000);
notify(id, mBuilder.build());

通知只适用于Android

2 个答案: