当应用程序不在后台或前台时，无法将通知推送到通知管理器

Question

I am developing a Android app,i want to push notification to NotificationManager if even app is not in background but not able to make it.

when app is in opened -working.

when app is in background -working

when app is in not in background or foreground -Not working

 NotificationManager notificationMgr = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);NotificationCompat.Builder notificationMsg = new NotificationCompat.Builder(ctx);
         notificationMsg.setContentTitle(notification.getTitle());
         notificationMsg.setTicker(notification.getTitle());
         notificationMsg.setPriority(notification.getPriority());
         notificationMsg.setSmallIcon(R.drawable.foo_icon);
         notificationMsg.setStyle(new NotificationCompat.BigTextStyle().bigText(notification.getDescription()));
         notificationMsg.setContentText(notification.getDescription());
         if (notificationIcon != null)
         {
             notificationMsg.setLargeIcon(notificationIcon);
         }
         else
         {
            // notificationMsg.setLargeIcon(R.drawable.foo_icon);
         }
        notificationMsg.setColor(ctx.getResources().getColor(R.color._9c9c9c));
        notificationMsg.setLights(R.color.green_normal,5000,5000);
        notificationMsg.setVibrate(new long[]{100,250,100,500});

        notificationMsg.setAutoCancel(true);
        if (( notification.getGroupName() != null ) &&( notification.getGroupValue() != null))
        {
            notificationMsg.setGroup(notification.getGroupName()+notification.getGroupValue());
        }
        /* Add Actions to Notification  */
        addActionsToNotificationWindow(notificationMsg,notification,ctx);
        int reqCode = Math.abs((int) System.currentTimeMillis());
        PendingIntent contentIntent = PendingIntent.getActivity(ctx, reqCode, targetIntent, PendingIntent.FLAG_CANCEL_CURRENT);
        notificationMsg.setContentIntent(contentIntent);

        /* Display notification*/
        notifyMgr.notify(notification.getId(),notificationMsg.build()); 

I am using above code to notify to Notification Manager and using following permissions in Android Manifest file

    <?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    package="com.example.foo"
    android:versionCode="1"
    android:versionName="0.1" >

    <uses-sdk
        android:minSdkVersion="16"
        android:targetSdkVersion="19" />
    <permission
        android:name="com.disha.quickride.permission.MAPS_RECEIVE"
        android:protectionLevel="signature" />
    <uses-permission android:name="android.permission.READ_LOGS" />
    <permission
        android:name="com.disha.quickride.permission.C2D_MESSAGE"
        android:protectionLevel="signature" />
    <uses-permission android:name="android.permission.ACCESS_GPS" />
    <uses-permission android:name="android.permission.ACCESS_LOCATION" />
    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
    <uses-permission android:name="com.disha.quickride.permission.MAPS_RECEIVE" />
    <uses-permission android:name="android.permission.INTERNET" />
    <uses-permission android:name="android.permission.GET_ACCOUNTS" />
    <uses-permission android:name="android.permission.WAKE_LOCK" />
    <uses-permission android:name="com.google.android.c2dm.permission.RECEIVE" />
    <uses-permission android:name="com.disha.quickride.permission.C2D_MESSAGE" />
    <uses-permission android:name="com.google.android.c2dm.permission.SEND" />
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
    <uses-permission android:name="com.google.android.providers.gsf.permission.READ_GSERVICES" />
    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
    <uses-permission android:name="android.permission.CAMERA" />
    <uses-permission android:name="android.permission.RECEIVE_SMS"/>
    <uses-permission android:name="android.permission.CALL_PHONE" />
    <uses-permission android:name="android.permission.READ_PHONE_STATE" />
    <uses-permission android:name="android.permission.READ_SMS" />
    <uses-permission android:name="android.permission.VIBRATE" />
    <uses-permission android:name="android.permission.SEND_SMS" />
    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
    <uses-permission android:name="android.permission.GET_TASKS" />
    <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED"/>
    <uses-feature android:name="android.hardware.camera" />
    <uses-feature android:name="android.hardware.camera.autofocus" />   

Answer 1

1. in int reqCode = Math.abs((int) System.currentTimeMillis());

System.currentTimeMillis() is long

try to set any constant int

2. also , can you show to us targetIntent ?
3. DO you generate the notification from service?
4. also show your Manifest
5. you can see here how to generate a notification from service http://startandroid.ru/ru/uroki/vse-uroki-spiskom/164-urok-99-service-uvedomlenija-notifications