Question

我通过使用AlarmManager和BroadcastReceiver类（名为AReceiver.java）为我的程序添加了一些基本的报警功能。我的问题是我添加到附加到创建PendingIntent的Intent的包的数据似乎丢失了。我可以在AReceiver类中访问的唯一bundle数据是android.intent.extra.ALARM_COUNT = 1.

以下是创建Intent，PendingIntent和AlarmManager的主要活动类中的基本代码： [主要活动中的代码 - Notepadv3]

Intent intent = new Intent(Notepadv3.this, AReceiver.class);         
intent.putExtra("teststring","hello, passed string in Extra");               
PendingIntent alarmIntent = PendingIntent.getBroadcast(this, pendingPeriodIntentId, intent, 0);     
AlarmManager am = (AlarmManager) getSystemService(ALARM_SERVICE);           
am.set(AlarmManager.RTC_WAKEUP, timeOfNextPeriod.getTimeInMillis(), alarmIntent);

[BroadcastReceiver中的代码 - AReceiver]

public void onReceive(Context con, Intent arg1) {
Bundle extrasBundle = arg1.getExtras();
Log.d("broadcast","contains teststring = " + extrasBundle.containsKey("teststring"));
Log.d("broadcast","is empty? = " + extrasBundle.isEmpty());
Log.d("broadcast","to string = " + extrasBundle.toString());
    }

调试消息说包含teststring为FALSE，为空为FALSE，在输出整个包时，我得到android.intent.extra.ALARM_COUNT = 1值。

非常感谢任何帮助。

干杯，汤姆

Answer 1

你必须改变这一行

PendingIntent alarmIntent = PendingIntent.getBroadcast(this, pendingPeriodIntentId, intent, 0);

进入这个

PendingIntent alarmIntent = PendingIntent.getBroadcast(this, pendingPeriodIntentId, intent, PendingIntent.FLAG_UPDATE_CURRENT);

否则数据丢失

无法将具有PendingIntent的Bundle发送到广播接收器，数据丢失

1 个答案: