I have been searching through the Expo documentation and haven't been able to find anything.
Is it possible to bring an app to the foreground using expo?
e.g. if I made a simple alarm clock - would it be possible to bring the app to the foreground and show an alarm screen without actively clicking on a notification?
I'm interested in both iOS and Android - any information is very much appreciated.
I am developing an app in which I have implemented a small turn based game using game centre. I have facing a problem and problem is when I have start the game and invite a friend then the notification banner with appropriate message is display on friend device but when he play the game and give turn to me and when my app is in background mode then only the badge is display but notification banner is not display but if I have remove the app from background then notification banner appears correctly. This process is running correctly with iOS 7 & 8 but not with iOS 9. Please suggest me any idea to solve this.
Thanks in advance!
I write a music player, and there is a need to hang a widget player in notification bar. how it can be implemented ? can be an example?
P.S. Sorry for my english
Try this: How to create a notification similar to Play Music app from Google
If you read through the notification docs, you'll see you can make it persistent and set a custom layout.
Is there any way to remove the swipe event that pulls in the notification center from the top of the ipad when developing an ipad app? If there is an easy way in PhoneGap, that would be best, if not - I can manually implement any Objective-C solution.
The app is already in full screen, and there are some gestures that including swiping at the top. These iPads are distributed to the sales force of this company, and they want that feature (top swipe notification center) disabled.
Cheers!
When your app is in fullscreen mode, Notification Center switches to a two-swipe system: swipe once to bring up a little handle, and swipe down on the handle to bring up Notification Center. This should avoid most interference.
Other than that, there's no public way to disable this gesture.
Of course not. At least not without a jailbroken phone. Notification Center is built into the OS and cannot be disabled by third party apps. As #jtbandes pointed out, their is the "handle" option, but there is no way to completely disable the functionality.
If you have a full screen iOS app and you want to prevent the notification center from being pulled down, can you and how?
Also can you block notification alerts or banners from displaying while your app is loading? (I think this is a no way for sure but wanted to ask just in case.)
It has been my experience that fullscreen apps (statusBarHidden = YES) have a slightly different notification center behavior by default: Swiping down over the area previously occupied by the status bar will only show a little tab. Only swiping the tab will then show the notification center. This has been enough to prevent accidental activation for me so far.
Currently, there is no public API for manipulating the behavior of the notification center. I am of the opinion that it's not likely that an app will ever be able to block a notification's appearance, and only slightly less unlikely that an app would be able to prevent the notification center from appearing. iOS is all about a consistent user experience experience at the price of developer freedom. I could see being frustrated by this kind of functionality if I were an unexpecting user.
All that said, there is always the dark-side of undocumented APIs. I would not be surprised if you could pull off some cleverness using those on a jailbroken device, but that's not my cup-o'-tea.
I just now figured this out. I am developing a game that runs in landscape and whenever I touched the left side, the notification center tab would appear. To fix this, you want to add the following:
setStatusBarOrientation:UIInterfaceOrientationLandscapeLeft
I added this right after I setStatusBarHidden and I no longer have the problem of the notification tab.
Hope that helps.
An API was introduced in iOS 11, alongside a change in behavior to how Notification Center (and Control Center) is presented, to allow you to specify the desired behavior.
UIViewController.preferredScreenEdgesDeferringSystemGestures
In iOS 11+, Notification Center will always pull down when swiping from the very top of the screen, even if the status bar is hidden. preferredScreenEdgesDeferringSystemGestures allows you to specify that swiping a screen edge should not trigger the standard system UI, and instead it will provide a pull-out tab that the user must swipe again to bring out the system UI.
This is intended to be used for games where users swipe frequently, where it would be undesired to bring in system UI instead of control the game. For an immersive app like that, you can return .all to specify you don't want any system UI to appear the first time you swipe any edges of the screen, and it should instead prefer your app's own gestures.
Note that this will disable the ability to swipe once from the bottom to close an app on iPhones and iPads that don't have home buttons - the user will have to swipe twice to close the app.
There is still no way to completely disable Notification Center from within your app, nor prevent notifications from appearing while your app is in the foreground.
I built a very simple code snippet to address this issue programatically. I have a timer set-up in my app delegate that runs every .2 seconds each time it runs it keeps moving the status bar orientation so it doesn't impact the game play. I haven't experienced the annoying notification center in my app since! The only issue is the volume control rotates constantly and might be annoying but it's less annoying than notification center
int tick=0;
-(void)toggleNC
{
[[UIApplication sharedApplication] setStatusBarHidden:YES];
tick++;
if (tick==1)
{
[[UIApplication sharedApplication] setStatusBarOrientation:UIInterfaceOrientationLandscapeLeft];
}
if (tick==2){
[[UIApplication sharedApplication] setStatusBarOrientation:UIInterfaceOrientationLandscapeRight];
}
if (tick==3){
[[UIApplication sharedApplication] setStatusBarOrientation:UIInterfaceOrientationPortrait];
}
if (tick==4){
[[UIApplication sharedApplication] setStatusBarOrientation:UIInterfaceOrientationPortraitUpsideDown];
tick=0;
}
}