I am working on an app that runs in the background with the backgroundmode set to location. In the didUpdateToLocation: method, I want to generate local notification. I want the app to show the notification only when previous notification has been viewed. Another option is to show only the latest notification and dismiss all the previous notifications programmatically (i.e. without user interaction). Please guide me how is it possible?
Try this:
UIApplication *app = [UIApplication sharedApplication];
NSArray *oldNotifications = [app scheduledLocalNotifications];
// Clear out the old notification before scheduling a new one.
if ([oldNotifications count] > 0) {
[app cancelAllLocalNotifications];
}
Related
I know this question looks duplicate but i did not found the exact answer as per my requirement.Doing app related to medical events with Below steps followed
1) connected the app to smart watch.
2) schedule the local notifications i. e when user needs to take
medicine
3) when the schedule time arrives local notification fires and
delegate method is calling (did receive local notification)
4) At the time of firing local notifications i am sending
message(sms) to the user from the app that he has to take certain
medicine
Everything is working fine when the app is in foreground and when the app reaches to background only local notifications are firing no message is received by the user.Because no method is calling when the app is in background.But my whole application use case mostly depends on sending sms.
Is there any solution for this ? Any help will be welcomed !! Thnxx !!
You're going to need to explicitly run your method in a UIBackgroundTask. See example below:
UIApplication * application = [UIApplication sharedApplication];
UIBackgroundTaskIdentifier background_task;
background_task = [application beginBackgroundTaskWithExpirationHandler:^ {
[application endBackgroundTask: background_task];
background_task = UIBackgroundTaskInvalid;
}];
// your method call here
[application endBackgroundTask: background_task];
background_task = UIBackgroundTaskInvalid;
I'm doing something similar and this works for me. Let me know if thats not working for you.
Is there a way to change the action when a user swipes on a push notification from your app? For example, a push notification that shows the text "Check out our new app!", then if the user swipes launch the App Store to that app. Does anyone know if there is a way to do this? If yes, could you please do it in Swift preferably, if in Objective-C it's fine I should be able to convert it.
Thanks in advance
When user swipes or opens application from top popup, then -application:didFinishLaunchingWithOptions: is called with push notification options.
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
if (launchOptions != nil) {
// Launched from push notification
NSDictionary *notification = [launchOptions objectForKey:UIApplicationLaunchOptionsRemoteNotificationKey];
// So check here if push notification says "Check out our new app!"
[[UIApplication sharedApplication] openURL:[NSURL URLWithString:#"https://itunes.apple.com/app/crosswords-classic/id653530195"]];
}
}
I have an app with basic alarm functionality. In my applicationWillResignActive: method I have it setup to create notifications to set off the alarm. This works pretty great, and I believe this is the proper way to do it (let me know if you think there is a better way).
Only in the specific situation, ONLY ON iOS 6, when the application is not "quit" (the home button is never pressed) but the user merely locks the phone or the phone auto locks, the notifications don't go off.
I have traced through the code, and the notifications are indeed being created and it worked perfectly in iOS 5.
Here is my code:
- (void)applicationWillResignActive:(UIApplication *)application
{
[UIApplication sharedApplication].idleTimerDisabled = NO;
[alarm setupForBackground];
if ([alarm isRunning]) {
[alarm stop];
}
}
Here is the notification creation method:
- (void)setupForBackground
{
UILocalNotification* alarmNotification = [[UILocalNotification alloc] init];
if (alarmNotification) {
alarmNotification.fireDate = alarmDate;
alarmNotification.timeZone = [NSTimeZone defaultTimeZone];
alarmNotification.repeatInterval = 0;
alarmNotification.soundName = #"NotificationSound.aif";
[[UIApplication sharedApplication] scheduleLocalNotification:alarmNotification];
}
}
I have been searching for an answer for a while, and I could not find anything stating something about notification changes. Thanks for any help.
I have a semi-solution. Apparently if you add an AlertBody to the notification, then it works.
My belief is that this is a bug in iOS 6. As I mentioned it worked in iOS 5, the documentation makes no mention of having such a requirement, and the notification does work without the AlertBody if the application is quit (the home button is pressed).
Still curious to see if my understanding is correct and if I should file a bug report with Apple.
Thoughts anybody?
I just wanted to add some notifications to Gyazo app.
I finally able to send notifications to the notifications center http://korniltsev.ru/p/jz6m3Nm.png
however when i click on it and the app is not launched it launches in some strange way:
it shows empty window(even if i set it visibleAtLaunch to 0) and nothing happens;http://korniltsev.ru/p/jz6mvk0.png
the code i'm trying to use is here:
- (void)applicationDidFinishLaunching:(NSNotification *)aNotification {
NSUserNotification * clicked = [[aNotification userInfo]
objectForKey:NSApplicationLaunchUserNotificationKey];
if (clicked){
[NSApp terminate:self];
return;
}
...
I send notifications like this
NSUserNotificationCenter *manager = [NSUserNotificationCenter defaultUserNotificationCenter];
NSUserNotification *urlNotification = [[NSUserNotification alloc]init];
[urlNotification setTitle:appName];
[urlNotification setInformativeText:url];
[manager deliverNotification:urlNotification];
What am i doing wrong?
[NSApp terminate:self] has a lot of side effects. Are you sure these side effects are not creating your blank window? Have you tried calling [NSApp terminate:self] immediately in applicationDidFinishLaunching and making sure you application quits cleanly in every case? If it does not you will likely have to look at what you are doing in your application's document controller (if you have one) and applicationShouldTerminate.
With iOS 5 and the notification center you can have waiting, stacked up notifications each with their own data and message. Is there a way when your program is launched regularly (without tapping on the notification) to discover the waiting notifications and more importantly the data associated with them?
The other question associated with this is when the push notifications come in and your app is in the background does application:didReceiveLocalNotification: still get called or does it just go and wait till the app is launched and then you're expected to manually handle it with the launch data in theapplication:didFinishLaunchingWithOptions:
My scenario is that I need to update some core-data models with the data attached to the push notifications so I want those changes reflected no matter how they launch the app.
From my experience, there is no way to find out about notifications other than launching the app directly through them (on iOS 5, that would be right after receiving the notification or from the queued notifications present at the Notification Center).
An alternate strategy would be to use icon badges.
If you badge your app icon when receiving notifications, you could check for that number every time the app is launched and then perform the required actions.
When a notification pops up you can either view it or cancel. If the user has canceled notification, you can check for them the next time they go in the app:
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
UILocalNotification *localNotif = [launchOptions objectForKey:UIApplicationLaunchOptionsLocalNotificationKey];
if( localNotif ) {
// Do some stuff
application.applicationIconBadgeNumber = 0; // Reset num of notifications on app icon
}
}
This method gets fired if you receive a notification while you are in that specific app, or you choose to acknowledge a local notification:
- (void)application:(UIApplication *)application didReceiveLocalNotification:(UILocalNotification *)notification {
BOOL inApp = [application applicationState] == UIApplicationStateActive;
if( inApp ) { // they got this in the app
//Do some stuff in the app
}
else {
// They acknowledged the notification out of the app and here they are
// Do some other stuff
}
application.applicationIconBadgeNumber = 0;
}
That gives you good coverage for all scenarios with local notifications which would be:
Notification is received, user cancels. Check later in didFinishLaunchingWithOptions
Notification is acknowledged, the app is not open. Check in didFinishLaunchingWithOptions
Notification is acknowledged, the app is in the background. didReceiveLocalNotification:
Notification is presented while in the app didReceiveLocalNotification: