在alertdialog

时间:2016-02-02 14:29:54

标签: android alarmmanager android-alarms

我在列表项中有一个按钮来删除该项目。当有关于该项目的警报时,我也想删除警报。 要删除项目,我会显示一个警告对话框,并在肯定按钮中显示删除功能:

builder.setPositiveButton("DELETE", new DialogInterface.OnClickListener() {
                @Override
                public void onClick(DialogInterface dialog, int which) {

                    DeleteList del = new DeleteList();
                    del.execute(listId);
                }
            });

但是我也需要删除警报,问题是警报是在另一个活动中设置的。我有PendingIntent的唯一ID,但是我无法创建PendingIntent,因为我处于静态上下文中。

如果我这样做:

AddListActivityFragment.deleteAlarmS(alarmId);

我得到的非静态方法不能从静态上下文中引用。

如果我这样做:

Intent resultIntent = new Intent(AddListActivity.this, MainActivity.class);
    PendingIntent deleteIntent = PendingIntent.getBroadcast(AddListActivity.this, Integer.parseInt(alarmId), resultIntent, PendingIntent.FLAG_NO_CREATE);
    if(deleteIntent != null) {
               AlarmManager alarmManager = (AlarmManager) AddListActivity.this.getSystemService(Context.ALARM_SERVICE);
        alarmManager.cancel(deleteIntent);
        deleteIntent.cancel();
    }

我得到“AddListActivity不是一个封闭的类”。

我该如何解决这个问题?如何取消闹钟?我是否使用AddListActivity收到的ID发送了一些广播?

由于

感谢qbix,我设法使AddListActivityFragment中的方法成为静态。但它仍然没有取消警报。

如何在AddListActivityFragment中设置警报:

 private void scheduleNotification(Notification notification, long delay, int alarmId) {

    Intent notificationIntent = new Intent(mContext, NotificationPublisher.class);

    notificationIntent.putExtra(NotificationPublisher.NOTIFICATION_ID, alarmId);
    notificationIntent.putExtra(NotificationPublisher.NOTIFICATION, notification);
    PendingIntent pendingIntent = PendingIntent.getBroadcast(mContext, alarmId, notificationIntent, PendingIntent.FLAG_ONE_SHOT);
    Log.v("alarm id", "alarmid = " + alarmId);
    long futureInMillis = SystemClock.elapsedRealtime() + delay;
    AlarmManager alarmManager = (AlarmManager) mContext.getSystemService(Context.ALARM_SERVICE);
    alarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP, futureInMillis, pendingIntent);
}

private Notification getNotification(String content, String subText, int alarmId) {
    Uri uri= RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
    long[] vib = new long[]{1000L, 1000L, 1000L, 1000L};
    Intent resultIntent = new Intent(mContext, MainActivity.class);

    PendingIntent resultPendingIntent =
            PendingIntent.getActivity(
                    mContext,
                    alarmId,
                    resultIntent,
                    PendingIntent.FLAG_UPDATE_CURRENT
            );
    NotificationCompat.Builder builder = new NotificationCompat.Builder(mContext);
    builder.setContentTitle("To do!");
    builder.setContentText(content);
    builder.setSubText(subText);
    builder.setSound(uri);
    builder.setVibrate(vib);
    builder.setSmallIcon(R.drawable.ic_add_white_24dp);
    builder.setAutoCancel(true);
    builder.setContentIntent(resultPendingIntent);
    return builder.build();
}

闹钟设置:

scheduleNotification(getNotification(title, subText, alarmId), delay, alarmId);

我如何尝试取消闹钟:

 public static void deleteAlarm(String alarmId){
    Toast.makeText(mContext, "delete alarm active", Toast.LENGTH_SHORT).show();
    Log.v("alarm id delete", "alarmid = " + alarmId);
    Intent resultIntent = new Intent(mContext, NotificationPublisher.class);
    PendingIntent deleteIntent = PendingIntent.getBroadcast(mContext, Integer.parseInt(alarmId), resultIntent, PendingIntent.FLAG_NO_CREATE);
    if(deleteIntent != null) {
        Toast.makeText(mContext, "Alarm deleted", Toast.LENGTH_SHORT).show();
        AlarmManager alarmManager = (AlarmManager) mContext.getSystemService(Context.ALARM_SERVICE);
        alarmManager.cancel(deleteIntent);
        deleteIntent.cancel();
    }
}

“删除警报激活”Toast显示,alarmId是正确的。但是Toast“警报删除”没有显示,警报仍然响起。 PendingIntent不一样吗?

由于

2 个答案:

答案 0 :(得分:0)

AddListActivity中,声明类型为Context的私有静态成员:

private static Context mContext;

onCreate()的{​​{1}}方法中,初始化它:

AddListActivity

在构建mContext = this; 并取消闹钟的代码块中,将PendingIntent替换为AddListActivity.this

答案 1 :(得分:0)

我解决了。 显然PendingIntent需要相同的标志,所以当我在deleteAlarm方法中将其更改为PendingIntent.FLAG_ONE_SHOT时,它可以工作。 谢谢你的帮助。