Carnivoris Carnivoris - 1 year ago 63
Android Question

Android notification not working

I've been attempting to get a notification of a successful upload from an ASyncTask to work all day. I'm not getting any errors from my current code but I can't get the notification to show in the notification bar (or anywhere else). I get no messages in LogCat and no notification appears in the Notification bar. This is my code:

Notification mNotification = new Notification(icon, tickerText, when);

CharSequence contentTitle = "upload completed.";
CharSequence contentText = "upload completed.";

Intent notificationIntent = new Intent(context, CastrActivity.class);
PendingIntent contentIntent = PendingIntent.getActivity(context, 0, notificationIntent, PendingIntent.FLAG_NO_CREATE);
mNotification.contentIntent = contentIntent;
mNotification.setLatestEventInfo(context, contentTitle, contentText, contentIntent);
mNotificationManager.notify(NOTIFICATION_ID, mNotification);

This is called from the onPostExecute() method of an ASyncTask. I'm a bit confused on the PendingIntent part, to be honest. Any clarification of what I suspect to be incorrect code there would be greatly appreciated.

Answer Source

I have created the class to show notifications:

public class NotificationData {

    public static NotificationManager mNotificationManager;
    public static int SIMPLE_NOTFICATION_ID;
    private Context _context;

    public NotificationData(Context context) {
        _context = context;

    public void clearNotification() {

    public void SetNotification(int drawable, String msg, String action_string, Class cls) {
        mNotificationManager = (NotificationManager) _context.getSystemService(Context.NOTIFICATION_SERVICE);
        final Notification notifyDetails = new Notification(drawable, "Post Timer", System.currentTimeMillis());
        long[] vibrate = { 100, 100, 200, 300 };
        notifyDetails.vibrate = vibrate;
        notifyDetails.ledARGB = 0xff00ff00;
        notifyDetails.ledOnMS = 300;
        notifyDetails.ledOffMS = 1000;
     // notifyDetails.number=4;
        notifyDetails.defaults =Notification.DEFAULT_ALL;
        Context context = _context;
        CharSequence contentTitle = msg;
        CharSequence contentText = action_string;      
        Intent notifyIntent = new Intent(context,  cls);
     // Bundle bundle = new Bundle();
     // bundle.putBoolean(AppConfig.IS_NOTIFICATION, true);
        PendingIntent intent = PendingIntent.getActivity(_context, 0,notifyIntent, android.content.Intent.FLAG_ACTIVITY_NEW_TASK);
        notifyDetails.setLatestEventInfo(context, contentTitle, contentText, intent);
        mNotificationManager.notify(SIMPLE_NOTFICATION_ID, notifyDetails);        

How to use this class:

NotificationData notification; //create object
notification = new NotificationData(this);
notification.SetNotification(R.drawable.notification, "Notification Title", "Click to open", YourClassName.class);

Add permission android.permission.VIBRATE

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