App关闭时不触发AlarmManager

Question

我有一些在特定时间向用户显示的应用程序内通知，但当应用程序关闭时没有显示任何内容。

设置闹钟：

Intent alarmIntent = new Intent(mMotherActivity, ReminderAlarmManager.class);

if (ReminderNotificationType.CHANGE_LENS.equals(notificationType)) {
    alarmIntent.putExtra("NOTIFICATION_TYPE", "REMINDER");
} else {
    alarmIntent.putExtra("NOTIFICATION_TYPE", "ORDER");
}

long scTime = alarmDate.getTime();
PendingIntent pendingIntent = PendingIntent.getBroadcast(mMotherActivity, 0, alarmIntent, 0);
AlarmManager alarmManager = (AlarmManager) mMotherActivity.getSystemService(mMotherActivity.ALARM_SERVICE);
alarmManager.set(AlarmManager.RTC_WAKEUP, scTime, pendingIntent);

广播接收者：

public class ReminderAlarmManager extends BroadcastReceiver {

    @Override
    public void onReceive(Context context, Intent intent) {

        String notificationType = intent.getStringExtra("NOTIFICATION_TYPE");
        if(notificationType.equalsIgnoreCase("ORDER"))
        {
            Intent i = new Intent(context, OrderReminderNotificationService.class);
            context.startService(i);
        }
        else if(notificationType.equalsIgnoreCase("REMINDER"))
        {
            Intent i = new Intent(context, ReminderNotificationService.class);
            context.startService(i);
        }
    }
}

所以说到scTime，即使App关闭了，我也想触发一个通知。所以我通过 PendingIntent 调用服务，如下所示：

public class OrderReminderNotificationService extends IntentService {

    public OrderReminderNotificationService(String name) {
        super(name);
    }

    @Override
    protected void onHandleIntent(Intent intent) {

        String ns = Context.NOTIFICATION_SERVICE;
        NotificationManager mNotificationManager = (NotificationManager) getSystemService(ns);

        Context context = getApplicationContext();
        NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(
            context);

        Uri uri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
        mBuilder.setContentTitle("Notification");
        mBuilder.setContentText(context.getString(R.string.renewOrderNotificationMsg));
        mBuilder.setSmallIcon(R.mipmap.ic_launcher);
        mBuilder.setSound(uri);
        mBuilder.setAutoCancel(true);

        Intent notificationIntent = new Intent(this, LoginActivity.class);
        PendingIntent contentIntent = PendingIntent.getActivity(this, 0, notificationIntent, 0);
        mBuilder.setContentIntent(contentIntent);
        mNotificationManager.notify(2, mBuilder.build());
}

清单中涉及的部分：

<receiver android:name="com.company.utils.ReminderAlarmManager">
    <intent-filter>
        <action android:name="android.intent.action.BOOT_COMPLETED" />
    </intent-filter>
</receiver>

但是什么也没有出现...我做错了什么？

Answer 1

你的AndroidManifest.xml应该是这样的：

<receiver android:name=".ReminderAlarmManager">
    <intent-filter>
        <action android:name="android.intent.action.BOOT_COMPLETED" />
    </intent-filter>
</receiver>

<service android:name=".OrderReminderNotificationService "/>

Answer 2

警报管理器不会触发某些手机上的 Intent 服务。在我意识到代码没有任何问题之前，我一整天都在 Oneplus 3T 上测试该应用程序。刚刚在 Moto G 上测试了相同的应用程序，它按预期工作。

Answer 3

您的设备不允许您触发闹钟，因为它需要节省一些电池电量。因此，转到“设置”->Battery/power 保护程序->“应用”，然后选择您的应用，然后 select“无限制”

App关闭时不触发AlarmManager

AlarmManager is not triggered when App is closed

notifications

android

alarmmanager

in-app