AlarmManager不工作 [英] AlarmManager not working

问题描述

我需要10个秒（例如）后开始活动 AlarmReceiver 。我需要它不运行应用程序激活。但无论应用程序运行与否的 AlarmReceiver 不会被调用。有什么建议？

 意向意图=新的意图（这一点，AlarmReceiver.class）;
PendingIntent pendingIntent = PendingIntent.getBroadcast（这一点，111，意图，0）;
AlarmManager alarmManager =（AlarmManager）getSystemService（ALARM_SERVICE）;

//alarmManager.set(AlarmManager.RTC_WAKEUP，System.currentTimeMillis的（）
                                          // +（10 * 1000），pendingIntent）;
Toast.makeText（这一点，报警设置，Toast.LENGTH_LONG）.show（）;
 

解决方案

 公共类AlarmReceiver扩展的BroadcastReceiver {

    @覆盖
    公共无效的onReceive（上下文的背景下，意图意图）{
          字符串消息=Hellooo，ALRM工作----;
          Toast.makeText（背景下，消息，Toast.LENGTH_SHORT）.show（）;
          意图int​​ent2 =新的意图（背景下，TripNotification.class）;
          intent2.setFlags（Intent.FLAG_ACTIVITY_NEW_TASK）;
          context.startActivity（intent2）;
    }

    公共无效setAlarm（上下文的背景下）{
        Log.d（碳，ALRM SET！）;

        //获取当前时间日历对象
         日历CAL = Calendar.getInstance（）;
         //加30秒到日历对象
         cal.add（Calendar.SECOND，30）;
         意向意图=新的意图（背景下，AlarmReceiver.class）;
         PendingIntent发送= PendingIntent.getBroadcast（背景下，192837，意向，PendingIntent.FLAG_UPDATE_CURRENT）;

         //获取AlarmManager服务
         AlarmManager AM =（AlarmManager）context.getSystemService（context.ALARM_SERVICE）;
         am.set（AlarmManager.RTC_WAKEUP，cal.getTimeInMillis（），发送方）;
    }
}
 

这是最后的codeI设法得到工作。您需要添加

 ＆LT;接收器安卓程序=：遥控机器人：NAME =AlarmReceiver＆GT;＆LT; /接收器＆GT;
 

略高于＆LT; /应用＆gt;以清单文件标记

这将设置一个报警在30秒内触发调用该方法后， SetAlarm（）

I need to start the activity AlarmReceiver after 10 seconds (for example). I need it to be activated without running the app. But whether the app runs or not the AlarmReceiver do not get called. Any suggestions?

Intent intent = new Intent(this, AlarmReceiver.class);
PendingIntent pendingIntent = PendingIntent.getBroadcast(this, 111, intent, 0);
AlarmManager alarmManager = (AlarmManager) getSystemService(ALARM_SERVICE);

//alarmManager.set(AlarmManager.RTC_WAKEUP, System.currentTimeMillis() 
                                          //+ (10 * 1000), pendingIntent);
Toast.makeText(this, "Alarm set", Toast.LENGTH_LONG).show();

解决方案

public class AlarmReceiver extends BroadcastReceiver {

    @Override
    public void onReceive(Context context, Intent intent) {
          String message = "Hellooo, alrm worked ----";
          Toast.makeText(context, message, Toast.LENGTH_SHORT).show();
          Intent intent2 = new Intent(context, TripNotification.class); 
          intent2.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
          context.startActivity(intent2);
    }

    public void setAlarm(Context context){
        Log.d("Carbon","Alrm SET !!");

        // get a Calendar object with current time
         Calendar cal = Calendar.getInstance();
         // add 30 seconds to the calendar object
         cal.add(Calendar.SECOND, 30);
         Intent intent = new Intent(context, AlarmReceiver.class);
         PendingIntent sender = PendingIntent.getBroadcast(context, 192837, intent, PendingIntent.FLAG_UPDATE_CURRENT);

         // Get the AlarmManager service
         AlarmManager am = (AlarmManager) context.getSystemService(context.ALARM_SERVICE);
         am.set(AlarmManager.RTC_WAKEUP, cal.getTimeInMillis(), sender);
    }
}

This is the final code i managed to get working. You need to add

 <receiver  android:process=":remote" android:name="AlarmReceiver"></receiver>

just above the </application> tag in Manifest file.

This will set an alarm to trigger in 30 seconds after calling the method SetAlarm()

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