AlarmManager从不在AlarmReceiver / BroadcastReceiver中调用onReceive

本文介绍了AlarmManager从不在AlarmReceiver / BroadcastReceiver中调用onReceive的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

我仍然无法触发我的AlarmReceiver类的onReceive方法。

I still cannot get my AlarmReceiver class' onReceive method to fire. Does anything stick out as wrong with this implementation?

所有要做的事情是等待一段时间（最好是6天），然后弹出一个通知。 （您可以相信没有内置的系统吗？crontab有人吗？？）

All this is supposed to do is wait a certain period of time (preferably 6 days) and then pop up a notification. (Can you believe there isn't a built in system for this? crontab anyone!?)

MyActivity和BootReceiver都在必要条件下设置了警报。 AlarmService发出通知。而AlarmReceiver是应该来捕获警报并启动AlarmService，但是它从未捕获到该广播，并且无论我做什么都不会。

MyActivity and BootReceiver both set up an alarm under the necessary conditions. AlarmService kicks out a notification. And AlarmReceiver is supposed to catch the alarm and kick off AlarmService, but it has never caught that broadcast, and won't no matter what I do.

哦，我正在Droid X 2.3.4上进行测试。正在根据API 8构建项目。

Oh, and I've been testing on my Droid X, 2.3.4. Project being built against API 8.

P.S。大部分内容已从 http：// android-in- Practice.googlecode/svn/trunk/ch02/DealDroidWithService/

P.S. Most of this has been adapted from android-in-practice.googlecode/svn/trunk/ch02/DealDroidWithService/

------------ MyActivity.java- ----------

------------ MyActivity.java ------------

public class MyActivity extends Activity implements SensorEventListener { private void setupAlarm() { Log.i(TAG, "Setting up alarm..."); AlarmManager alarmMgr = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE); PendingIntent pendingIntent = PendingIntent.getBroadcast(context, 1, new Intent(context, AlarmReceiver.class), 0); // Get alarm trigger time from prefs Log.i(TAG, "Getting alarm trigger time from prefs..."); SharedPreferences mPrefs2 = PreferenceManager.getDefaultSharedPreferences(context); long trigger = SocUtil.getLongFromPrefs(mPrefs2, AlarmConst.PREFS_TRIGGER); Log.i(TAG, "Trigger from prefs: " + trigger + " (" + new Date(trigger).toString() + ")."); // If alarm trigger is not set if(trigger == new Long(-1).longValue()) { // Set it trigger = new Date().getTime() + NOTIFY_DELAY_MILLIS; SocUtil.saveLongToPrefs(mPrefs2, AlarmConst.PREFS_TRIGGER, trigger); Log.i(TAG, "Trigger changed to: " + trigger + " (" + new Date(trigger).toString() + ")."); // And schedule the alarm alarmMgr.set(AlarmManager.RTC, trigger, pendingIntent); Log.i(TAG, "Alarm scheduled."); } // If it is already set else { // Nothing to schedule. BootReceiver takes care of rescheduling it after a reboot } } }

------------ AlarmService.java ------------

------------ AlarmService.java ------------

public class AlarmService extends IntentService { public AlarmService() { super("AlarmService"); } @Override public void onHandleIntent(Intent intent) { Log.i(AlarmConst.TAG, "AlarmService invoked."); this.sendNotification(this); } private void sendNotification(Context context) { Log.i(AlarmConst.TAG, "Sending notification..."); Intent notificationIntent = new Intent(context, Splash.class); PendingIntent contentIntent = PendingIntent.getActivity(context, 0, notificationIntent, 0); NotificationManager notificationMgr = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE); Notification notification = new Notification(R.drawable.icon, "Test1", System.currentTimeMillis()); notification.setLatestEventInfo(context, "Test2", "Test3", contentIntent); notificationMgr.notify(0, notification); } }

----------- -AlarmReceiver.java ------------

------------ AlarmReceiver.java ------------

public class AlarmReceiver extends BroadcastReceiver { // onReceive must be very quick and not block, so it just fires up a Service @Override public void onReceive(Context context, Intent intent) { Log.i(AlarmConst.TAG, "AlarmReceiver invoked, starting AlarmService in background."); context.startService(new Intent(context, AlarmService.class)); } }

----------- -BootReceiver.java ------------ （还原擦除的警报，因为我在操作系统中安排的工作不足以通过重新引导-_-停留在此位置）

------------ BootReceiver.java ------------ (to restore wiped alarms, because stuff I schedule with the OS isn't important enough to stick around through a reboot -_-)

public class BootReceiver extends BroadcastReceiver { @Override public void onReceive(Context context, Intent intent) { Log.i(AlarmConst.TAG, "BootReceiver invoked, configuring AlarmManager..."); Log.i(AlarmConst.TAG, "Setting up alarm..."); AlarmManager alarmMgr = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE); PendingIntent pendingIntent = PendingIntent.getBroadcast(context, 1, new Intent(context, AlarmReceiver.class), 0); // Get alarm trigger time from prefs Log.i(AlarmConst.TAG, "Getting alarm trigger time from prefs..."); SharedPreferences mPrefs2 = PreferenceManager.getDefaultSharedPreferences(context); long trigger = SocUtil.getLongFromPrefs(mPrefs2, AlarmConst.PREFS_TRIGGER); Log.i(AlarmConst.TAG, "Trigger from prefs: " + trigger + " (" + new Date(trigger).toString() + ")."); // If trigger exists in prefs if(trigger != new Long(-1).longValue()) { alarmMgr.set(AlarmManager.RTC, trigger, pendingIntent); Log.i(AlarmConst.TAG, "Alarm scheduled."); } } }

------ ------清单------------

------------ Manifest ------------

<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" /> <activity android:name=".MyActivity" android:label="@string/app_name" > </activity> <receiver android:name="com.domain.app.BootReceiver"> <intent-filter> <action android:name="android.intent.action.BOOT_COMPLETED" /> </intent-filter> </receiver> <receiver android:name="com.domain.app.AlarmReceiver"></receiver> <service android:name="com.domain.app.AlarmService"></service>

推荐答案

我什至不使用 BroadcastReceiver 。我读过的有关如何进行通知警报的教程和帖子中的每一个，都说使用 BroadcastReceiver ，但是显然我不明白

I solved this by not even using a BroadcastReceiver. Every single one of the tutorials and posts I read about how to do notification alarms (and that was A LOT) said to use a BroadcastReceiver, but apparently I don't understand something, or that's a load of crap.

现在，我只是将 AlarmManager 设置为带有意图直接进入我创建的新的活动。在重新启动后，我仍然使用 BootReceiver 重置该警报。

Now I just have the AlarmManager set an alarm with an Intent that goes directly to a new Activity I created. I still use the BootReceiver to reset that alarm after a reboot.

这可以使通知在应用程序中运行，退出应用程序，应用程序进程被终止，并在重新启动后。

This lets the notification work in-app, out-of-app, with the app process killed, and after a reboot.

感谢您的宝贵时间。