I'm having a little problem in my app : I use to send local notifications to the user when actions are performed in my app, while it's running in background. Notifications are displayed perfectly in the notification center, but there is no pop-up when the notification occurs.
If I'm right, apps running in foreground can't display pop-up on the user screen (only in the notification center) but when the app is running in background, in fact there is pop-up displayed automatically ?
Thanks for your help !
EDIT : In fact, I'm speaking about a notification banner to be displayed too when the notification appear in the notification center.
When your app will go in background then you will see an immediate notification on your phone but you have to tap that notification to trigger didReceiveLocalNotification delegate.
If you receive local notification in foreground then didReceiveLocalNotification will be triggered automatically.
Above scenario is tested and verified.
Update: You must read this documentation: http://www.thekspace.com/home/component/content/article/62-uilocalnotification-demystified.html
Related
While trying to implement FCM in my iOS app, I came across this issue. I have my app opened, at the same time I slide down the Notification tray of my device. When I send a push notification, my application state prints as INACTIVE (which is correct since the tray comes in foreground, leaving my app in the background)
I am loading a URL on notification tap, hence when user slides up the tray, the url is directly loaded and no notification is displayed in the tray.
In this scenario, I wish to display notification in the tray and open URL only when the user taps on the notification. Is there any way to detect if the Notification tray is visible over my app specifically?
you can use Third party library : https://github.com/bryx-inc/BRYXBanner or you can show alert by handling if app is in foreground or inactive state in notification recieving delegate.
My app is receiving a notification and my problem is that when I received one or more notifications in the background and when i click the app icon to bring me in my app foreground then the notification message(s) doesn't able to display in the foreground it will only works if I click the pop up message in notification center not the icon.
You will not get remote push notification data on launch of app after tapping icon. You can only parse push notification body only on tap of notification alert.
So if you want to do any MUST NEED operation for such notifications there is only way is to introduce server in between. So you can use any web service for it and this will be called every time your app launches or comes to foreground. Call that API on background and do the needful you want.
How can I make my push notification alert for my app show in a top rectangle on the phone when it's not locked. Right now I only see it on the locked screen.
Thanks
You are looking for a way to display push notifications when you app is running and in the foreground? That is, you want notifications that are received while your app is running to look just like notifications that are received when your app is not running? Unfortunately, iOS has no support for this. When your app is in the foreground, it is notified via [UIApplicationDelegate application:didReceiveRemoteNotification:] when a notification is received, but nothing is displayed. You'll have to write your own UI code to display a banner at the top of the screen when this method is called.
I am detecting for iBeacon in background. When my device comes in a particular region application should comes to foreground.
It cannot be done without user interaction. The only option is you can generate a push notification to tell the user to bring the application to foreground.
This is from the Apple documentation about this issue:
When the operating system delivers push notification (iOS or OS X)
and the target application is not running in the foreground, it
presents the notification (alert, icon badge number, sound). If there
is a notification alert and the user taps or clicks the action button
(or moves the action slider), the application launches and calls a
method to pass in the local-notification object or remote-notification
payload. If the application is running in the foreground when the
notification is delivered, the application delegate receives a local
or push notification.
To answer to some comments about WhatsApp, with it, when you receive a classic vocal call, IOS use CallKit to display your call and wake up your phone, but it's not inside app. I try to make a video call with WhatsApp, and in this case, there is a notification. Press notification open app and answer to the call.
Conclusion : It's impossible to wake up app from background to foreground in IOS, but it's not really a problem because you can use notification to display what you want and get the user to your app after a touch on your notification. All of iPhone users are familiar with this kind of interaction, it's better to deal with it.
I cannot seem to find a way to detect when a notification comes in. For example, if my app is open and the user gets a Facebook push notification\, is there any UIApplication notification or something else that will tell me that the app is no longer in the foreground and the Facebook alert is on top? Preferably something that is fired if the notification is a banner or an alert
You cannot detect a push notification sent to another app.
If you want to detect whether your app is not in foreground anymore, you can use the applicationWillResignActive: method of UIApplicationDelegate or register for the UIApplicationWillResignActiveNotification notification.
However, when the notification banner appears on top, your application is still in foreground. When the notification is prompted as an alert instead (the user can set this in the preferences), the application loses the focus and it won't be in foreground anymore.
The notification banner at the top is a window displayed by SpringBoard (another process) which does not become key until the user touches it. If the user slides the notification down and the notification center opens, your app becomes inactive and your app delegate hears about this. If the user taps on the notification, your app goes to the background and the other is open. If the user has elected to see alerts instead of banners, once the alert is displayed, your app will resign active. You can listen to UIApplicationWillResignActiveNotification notifications to know when the app resigns active.