Showing an alert/notification in Iphone at a particular time

ashwinr87 · 06-08-2011, 02:08 PM

I would like to know what IOS functionality to use to enable me to display a alert/notification at a particular time on the iphone. The time would be set either by the user or the developer using the UIDatePicker. Running the Local Notification Tutorial, the alert/notification is getting displayed only when the app is in the background(please correct me if I am wrong)

It would be great if someone could help me out with this

nobre84 · 06-08-2011, 02:31 PM

When your app is in the foreground, it won't pop the message for you, but you will receive a

Code:

- (void)application:(UIApplication *)application didReceiveLocalNotification:(UILocalNotification *)notification

in your app delegate, that you can use to retrieve the contents of the notification and pop your own alert if you wish.

ashwinr87 · 06-08-2011, 02:56 PM

thank you for the reply..
I have been trying to find out how exactly to do that but I am unable to do so..
would you be able to help me out?

Quote:

Originally Posted by nobre84

When your app is in the foreground, it won't pop the message for you, but you will receive a

Code:

- (void)application:(UIApplication *)application didReceiveLocalNotification:(UILocalNotification *)notification

in your app delegate, that you can use to retrieve the contents of the notification and pop your own alert if you wish.

**smithdale87** · 06-08-2011, 04:27 PM

you use UIAlertView to popup your own alert, if that's what you are unable to do.

If you post your code, we may be of further assistance.

ashwinr87 · 06-09-2011, 08:26 AM

thank you.. the thing is I know how to use UIAlertView.. I dont know how to code to make the UIAlertView pop up at the specified time...
In the tutorial I specified, they use

Code:

localNotif.fireDate = itemDate;
    localNotif.timeZone = [NSTimeZone defaultTimeZone];

which I think makes the local notification fire at that time where fireDate is the time specified..
how do I do this using UIAlertView?

Quote:

Originally Posted by smithdale87

you use UIAlertView to popup your own alert, if that's what you are unable to do.

If you post your code, we may be of further assistance.

nobre84 · 06-09-2011, 08:31 AM

Seems like you didn't understand my post. When the fireDate comes, and your app is in the background, the system alerts the user for you. If your app is open, no message will come up, but your App Delegate class will receive a call to the method I posted above. At that time, you can choose to show an UIAlertView

ashwinr87 · 06-09-2011, 08:32 AM

yes.. I was not able to understand your post earlier but now I got what you were saying.. thanks for the help... will try it out and see if I can implement it...

Quote:

Originally Posted by nobre84

Seems like you didn't understand my post. When the fireDate comes, and your app is in the background, the system alerts the user for you. If your app is open, no message will come up, but your App Delegate class will receive a call to the method I posted above. At that time, you can choose to show an UIAlertView

ashwinr87 · 06-09-2011, 08:45 AM

I tried it out and it worked!! thank you very much!!!

Quote:

Originally Posted by nobre84

Seems like you didn't understand my post. When the fireDate comes, and your app is in the background, the system alerts the user for you. If your app is open, no message will come up, but your App Delegate class will receive a call to the method I posted above. At that time, you can choose to show an UIAlertView