我正在尝试创建一个警报,以修复由于心跳错误而导致的与Google云消息传输的丢失连接,请访问此处How to avoid delay in Android GCM messages / change heartbeat
然而,我的闹钟onReceive类,我被设置为每1分钟被调用一次,用于测试永远不会被调用。我已经查看了与此主题相关的其他几个问题,所有这些问题都集中在拼写和在清单中声明接收器,我已经多次检查过。
以下是所有相关代码:
MainActivity.java
//Alarm created here
GCMHeartbeatAlarm gcmAlarm = new GCMHeartbeatAlarm();
gcmAlarm.setAlarm(this);
GCMHeartbeatAlarm.java
public class GCMHeartbeatAlarm extends BroadcastReceiver {
private AlarmManager alarmMgr;
private PendingIntent alarmIntent;
@Override
public void onReceive(Context context, Intent intent) {
//The part which is supposedly going to fix the GCM connection dropped bug, needs to be called every 5 mins or so via alarm to keep
//GCM connection open
//Commented out for now
// context.sendBroadcast(new Intent("com.google.android.intent.action.GTALK_HEARTBEAT"));
// context.sendBroadcast(new Intent("com.google.android.intent.action.MCS_HEARTBEAT"));
Log.i("GCMHeartbeat", "GCM Heartbeat Sent!");
}
public void setAlarm(Context context) {
alarmMgr=(AlarmManager)context.getSystemService(Context.ALARM_SERVICE);
Intent intent = new Intent(context, GCMHeartbeatAlarm.class);
alarmIntent = PendingIntent.getBroadcast(context, 0, intent, 0);
//Repeat every 1 minute
alarmMgr.setRepeating(AlarmManager.ELAPSED_REALTIME, System.currentTimeMillis(), 1000 * 60 * 1 , alarmIntent);
Log.i("GCMHeartbeat", "Alarm set!");
}
}
的AndroidManifest.xml
<!-- GCM Heartbeat Alarm Receiver -->
<receiver
android:name="com.MyApp.app.GCMHeartbeatAlarm">
</receiver>
使用此代码,“闹钟设置!” log被命中,但onReceive中的登录永远不会被命中。
任何可以帮助我弄清楚发生了什么的事情都会非常感激!
答案 0 :(得分:0)
最终让它发挥作用。我不太清楚为什么,但使用System.currentTimeMillis()不适用于triggerAtMillis值。也许是因为为ELAPSED_REALTIME而不是currentTimeMillis()设置了警报,因此从未触发第一个警报。相反,我使用SystemClock.elapsedRealtime()+ 60 * 1000在设置后1分钟开始触发警报,然后以1分钟的间隔开始调用onReceive方法。
工作代码是:
public void setAlarm(Context context) {
alarmMgr = (AlarmManager)context.getSystemService(Context.ALARM_SERVICE);
Intent intent = new Intent(context, GCMHeartbeatAlarm.class);
alarmIntent = PendingIntent.getBroadcast(context, 0, intent, 0);
alarmMgr.setRepeating(AlarmManager.ELAPSED_REALTIME, SystemClock.elapsedRealtime() + 60 * 1000, 60 * 1000, alarmIntent);
Log.e("GCMHeartbeat", "Alarm set!");
}