Question

我试图做一个简单的闹钟管理器，虽然我加了5秒的延迟，手机中的闹钟立即响起。

我知道在我的接收器中警报声响起，但是我知道你把延迟设置为你希望它在未决意图中消失的时间。

我做错了什么？

这是我的警报意图：

    AlarmManager manager = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
    Intent intent = new Intent (AlarmClockScreen.this, AlarmNotificationReciever.class);
    PendingIntent pendingIntent = PendingIntent.getBroadcast(getApplicationContext(), 0, intent, 0);
    manager.set(AlarmManager.RTC_WAKEUP, SystemClock.elapsedRealtime()+5000,pendingIntent);

这是我的接收器

public class AlarmNotificationReciever extends BroadcastReceiver {
    @Override
    public void onReceive(Context context, Intent intent) {
        NotificationCompat.Builder builder = new NotificationCompat.Builder(context);

        builder.setAutoCancel(true)
                .setDefaults(Notification.DEFAULT_ALL)
                .setWhen(System.currentTimeMillis())
                .setSmallIcon(android.R.mipmap.sym_def_app_icon)
                .setContentTitle("Alarm TITLE")
                .setContentText("I will finish, What you started")
                .setDefaults(Notification.DEFAULT_LIGHTS | Notification.DEFAULT_SOUND)
                .setContentInfo("Info");

        NotificationManager notificationManager = (NotificationManager)context.getSystemService(Context.NOTIFICATION_SERVICE);
        notificationManager.notify(1,builder.build());

    }
}

Answer 1

通过添加

修复它

async Task task()
{
var locator = CrossGeolocator.Current;
locator.DesiredAccuracy = 50;
var position = await locator.GetPositionAsync(timeoutMilliseconds: 10000);
var speed = position.Speed * 3.6;
speedKmh = speed.ToString() + "km/h";
}

AlarmManager警报立即关闭并忽略延迟

1 个答案: