AlarmManger setRepeating停止运行
AlarmManger setRepeating停止运行
提问于 2018-06-10 03:52:15
我想每小时发出一条通知。
我在AlarmManager服务中使用setRepeating，问题是当我关闭我的应用程序时，管理器不会广播到我的BroadcastReceiver。
我的BroadcastReceiver：
public class MyReceiver extends BroadcastReceiver
{
@Override
public void onReceive(Context context, Intent intent)
{
PendingIntent pendingIntent = PendingIntent.getActivity(context, 0, intent, 0);
Notification notification = new NotificationCompat.Builder(context, "notify_001")
.setContentTitle("URL Database")
.setSmallIcon(R.drawable.ic_launcher)
.setStyle(new NotificationCompat.BigTextStyle())
.setContentText("You didn't use the URLDatabase app for a while.\nYour urls feel lonely.")
.setContentIntent(pendingIntent).build();
NotificationManager manager = (NotificationManager) context.getSystemService(Service.NOTIFICATION_SERVICE);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O)
{
NotificationChannel channel = new NotificationChannel("notify_001",
"URLDatabaseNotification",
NotificationManager.IMPORTANCE_DEFAULT);
manager.createNotificationChannel(channel);
}
manager.notify(0, notification);
Log.i("URLDatabase", "Received");
}
}我的AlarmManager代码(我在我的活动的onCreate中使用了这个)：
calendar = Calendar.getInstance();
intent = new Intent(this, MyReceiver.class);
pendingIntent = PendingIntent.getBroadcast(this, 1, intent, PendingIntent.FLAG_UPDATE_CURRENT);
am = (AlarmManager) this.getSystemService(ALARM_SERVICE);
am.setRepeating(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), 1000*60*60, pendingIntent);我是否需要创建在后台工作的自定义服务？
回答 1
Stack Overflow用户
发布于 2018-06-10 04:34:17
试试这段代码。每次发射10分钟。
广播接收器：
public class AlarmReceiver extends BroadcastReceiver {
public static final int REQUESTED_CODE_ALARM = 101;
@Override
public void onReceive(Context context, Intent intent) {
// interval in minutes
long fireTime = System.currentTimeMillis() + 10 * 60000;
AlarmManager alarmManager = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
Intent alarmIntent = new Intent(context, AlarmReceiver.class);
PendingIntent alarmPendingIntent = PendingIntent.getBroadcast(
context, REQUESTED_CODE_ALARM, alertNewsIntent, 0);
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.M)
alarmManager.setExact(AlarmManager.RTC_WAKEUP, fireTime, alarmPendingIntent);
else if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M)
alarmManager.setExactAndAllowWhileIdle(AlarmManager.RTC_WAKEUP, fireTime, alarmPendingIntent);
}}使用以下代码启动警报(并首次触发)：
Intent alarmIntent = new Intent(this, AlarmReceiver.class);
sendBroadcast(alarmIntent);要停止报警：
public void stopAlertAlarm(){
AlarmManager alarmManager = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
Intent alarmReceiver = new Intent(this, AlarmReceiver.class);
PendingIntent alertNewsPendingIntent = PendingIntent.getBroadcast(
this, AlarmReceiver.REQUESTED_CODE_ALARM, alarmReceiver, 0);
alarmManager.cancel(alertNewsPendingIntent);
}重要提示：不要忘记在清单中注册receiver：
<receiver android:name=".services.AlarmReceiver" />页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/50777973
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