My scenario that I need to show the first Local Notification using Swift and then using the same identifier add another Local Notification, but without showing it as a popup in iOS device. So basically the flow would be like this:
Starting upload... <-- Show on the screen and adds to the Tray bar
Uploading photos... <-- Does not shows on the screen, but clears all the notifications and add another one in Tray bar silently (or changes previous one)
Uploading data... <-- Same as Uploading photos...
Finished uploading... <-- Same as Uploading photos...
Tried different ways, on Android it is not hard to do that, but iOS makes everything hard to do, is it even possible? :)
Thanks!
The reason it works on Android is because the "state showing" notifications are very Android thing. iOS is not designed for this kind of stuff because you almost never do something in the background of an app that also needs to be reflected to the user while user is outside of an app. So the real answer to your question is no. In iOS environment it is not possible to simulate Android way of showing status changes in a notification.
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I'm currently adding notifications to my Flutter app for IOS, I wanted to add something similar to a largeIcon on Android, so far I didn't find a way to do that, only adding an image which is not a solution since I only want an icon at the right even if the user expands the notification (the image will expand too in this case which is undesirable for my use case).
As an alternative, I was wondering if I could change the notification app icon. As far as I looked around, this is not possible either, but at the same time I saw this image of notifications (the first one and the last one) that have a custom image and the app icon is smaller.
How can I do this in my app? I couldn't find any way in the documentation on how to do it.
You can do this with communication notifications. From HIG:
The system automatically displays a large version of your app icon at
the leading edge of each notification; in a communication
notification, the system displays the sender’s contact image — or
avatar — badged with a small version of your icon.
Here is the documentation on how to implement communication notifications in your app.
I have an app that uses ARKit to detect faces and send over the network the coordinates of interest, which works well. I would like this app to run in background, still sending the data over the network, while I would be using another app (almost) fullscreen.
The option 'Enable multiple windows' is activated in info.plist, but as soon as I launch my other app, the ARKit app stops sending information (the app actually probably stops).
Is there a simple way to do this, and at least is this feasible? Thanks!
This is not possible at this point. Camera and AR stuff is disabled at a system level in apps when they are displayed in Slide Over or Split View.
I'd recommend displaying a warning message when Slide Over/Split Screen is being used saying that you should use the app in full screen mode. See this answer under a different question for details.
When I create an app using this component it just send notifications to Android while APP is opened or when she's in the background because I pressed the home button on the phone, if I close the app or exit using the back button notifications are no longer passed to the cell. Is there any way to fix this?
How do you expect for your app to create any notifications if it is not running? Your app needs to be rinning in order to create or post any notivications to the OS.
So now you would probably wanna focus on preventing the app instantly closing when back button is pressed in a way that you notiffy the user that closing the app will prevent its notifications to work and then give your user choice to either close the app or simply keep it workinng in the background.
Got 2 questions for the xcode experts :
- I would like to send a (repeating) local notification only to the locked screen but without having the screen turning on, it is possible ?
- I also would like to check whether the screen is on or off (for this very purpose) : is there any way with the current IOS version (IOS 7) ?
Many thanks for any help !
No this is not possible, frits it will be very hard to get you app running in background without misusing one of the background modes.
You cannot detect if the devices is locked and you will flood the notification center with messages.
If you do manage to get it working then there is good chance that Appel will reject your app for doing this.
You can check the screen by checking the applicationState property, which will be set to UIApplicationStateInactive when the phone is set to lock/sleep (as opposed to UIApplicationStateBackground).
As for the notification, you can set a push notification delegate (I've not done it from scratch, but I did it using Urban Airship and creating my own custom push handler class) and handle whether to post an alert or not there. I'm not sure, though, whether having the phone sleep will kick notifications to the OS level, which would default to showing a notification on the screen.
I have developed an iOS enterprise app for iPad. When it is launched it connects to a webservice, gets some data, and stores it in Core Data. Then the next screens use this data and do what is needed, like fill UITextFields, drop downs, show the user a UIAlertView, etc. Basically i use the data, manipulate it, and save it.
Consider this: I install the app now in morning, I use it immediately, and then I click the home button on iPad and leave it there for couple of hours. I then launch the app, and it shows a black screen before crashing and going back to iPad main menu.
Why is it crashing like that? Any ideas?
If you need more information please let me know.
You need to check your logs for errors.
Plug your device to your computer and open Xcode/Organizer/Devices/Device Logs