When my app goes in background then applicationDidEnterBackground is automatically called and in this method we fire local notification. but didReceiveLocalNotification: method is not called
- (void)applicationDidEnterBackground:(UIApplication *)application {
UIApplication *app = [UIApplication sharedApplication];
bgTask = [app beginBackgroundTaskWithExpirationHandler:^{
bgTask = UIBackgroundTaskInvalid;
}];
UILocalNotification* localNotification = [[UILocalNotification alloc] init];
localNotification.timeZone = [NSTimeZone defaultTimeZone];
localNotification.fireDate = [NSDate date];
localNotification.alertBody = textString;
localNotification.alertAction = #"View";
localNotification.soundName = UILocalNotificationDefaultSoundName;
localNotification.applicationIconBadgeNumber = 1;
[[UIApplication sharedApplication] presentLocalNotificationNow:localNotification];
}
Your expectations with local notifications are incorrect:
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
Try this code:
NSDate *pickerDate = [date_picker date];
// Schedule the notification
UILocalNotification* localNotification = [[UILocalNotification alloc] init];
localNotification.fireDate = pickerDate;
localNotification.alertBody = #"Alert Body Message";
localNotification.alertAction = #"Alert Action Message";
localNotification.timeZone = [NSTimeZone defaultTimeZone];
[[UIApplication sharedApplication] scheduleLocalNotification:localNotification];
and use this code in didFinishLaunchingWithOptions in App delegate class.
UILocalNotification *locationNotification = [launchOptions objectForKey:UIApplicationLaunchOptionsLocalNotificationKey];
if (locationNotification) {
// Set icon badge number to zero
application.applicationIconBadgeNumber = 0;
}
Before scheluding notification you must register it for specified type:
- (void)applicationDidEnterBackground:(UIApplication *)application {
UIApplication *app = [UIApplication sharedApplication];
bgTask = [app beginBackgroundTaskWithExpirationHandler:^{
bgTask = UIBackgroundTaskInvalid;
}];
UILocalNotification* localNotification = [[UILocalNotification alloc] init];
localNotification.timeZone = [NSTimeZone defaultTimeZone];
localNotification.fireDate = [NSDate date];
localNotification.alertBody = textString;
localNotification.alertAction = #"View";
localNotification.soundName = UILocalNotificationDefaultSoundName;
localNotification.applicationIconBadgeNumber = 1;
// register notification settings
if ([application respondsToSelector:#selector(registerUserNotificationSettings:)]) {
#ifdef __IPHONE_8_0
UIUserNotificationSettings *settings = [UIUserNotificationSettings settingsForTypes:(UIRemoteNotificationTypeBadge
|UIRemoteNotificationTypeSound
|UIRemoteNotificationTypeAlert) categories:nil];
[application registerUserNotificationSettings:settings];
#endif
} else {
UIRemoteNotificationType myTypes = UIRemoteNotificationTypeBadge | UIRemoteNotificationTypeAlert | UIRemoteNotificationTypeSound;
[application registerForRemoteNotificationTypes:myTypes];
}
[[UIApplication sharedApplication] presentLocalNotificationNow:localNotification];
}
Related
I created a Local Notification that triggers 60 seconds when a certain button(SetButton) is clicked. My problem right now is if SetButton is pressed again, it does not override the first press, it displays 2 notifications and so on. How do I make sure that the second press of the button overrides the first press and there isn't a build up of notifications ?
- (IBAction)SetButtonPressed:(id)sender {
UILocalNotification *localNotification = [[UILocalNotification alloc] init];
localNotification.fireDate = [NSDate dateWithTimeIntervalSinceNow:60];
localNotification.alertBody = #"HEY GET UP";
localNotification.timeZone = [NSTimeZone defaultTimeZone];
localNotification.applicationIconBadgeNumber = [[UIApplication sharedApplication] applicationIconBadgeNumber] + 1;
}
My AppDelegate.m
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
UILocalNotification *localNotification = [launchOptions objectForKey:UIApplicationLaunchOptionsLocalNotificationKey];
if ([UIApplication instanceMethodForSelector: #selector(registerUserNotificationSettings:)]) {
[application registerUserNotificationSettings: [UIUserNotificationSettings settingsForTypes: UIUserNotificationTypeAlert | UIUserNotificationTypeBadge | UIUserNotificationTypeSound categories:nil]];
}
if (localNotification) {
application.applicationIconBadgeNumber = 0;
}
}
If you only use notifications for that specific action you could cancel all notifications at once using
[[UIApplication sharedApplication] cancelAllLocalNotifications];
It looks like you only have one type of local notifications in your app.
In that case you could keep it simple. Whenever you want to schedule a new one - cancel the previous one.
- (IBAction)SetButtonPressed:(id)sender {
[[UIApplication sharedApplication] cancelAllLocalNotifications];
UILocalNotification *localNotification = [[UILocalNotification alloc] init];
localNotification.fireDate = [NSDate dateWithTimeIntervalSinceNow:60];
localNotification.alertBody = #"HEY GET UP";
localNotification.timeZone = [NSTimeZone defaultTimeZone];
localNotification.applicationIconBadgeNumber =
[[UIApplication sharedApplication] applicationIconBadgeNumber] + 1;
}
-(void)setNoti {
UILocalNotification *localNotification = [[UILocalNotification alloc] init];
localNotification.fireDate = [NSDate dateWithTimeIntervalSinceNow:60];
localNotification.alertBody = #"NOTI 1";
localNotification.timeZone = [NSTimeZone defaultTimeZone];
localNotification.applicationIconBadgeNumber = [[UIApplication sharedApplication] applicationIconBadgeNumber] + 1;
localNotification.repeatInterval = kCFCalendarUnitMinute;
NSDictionary *dict = #{#"nid":#"1"};
localNotification.userInfo = dict;
[[UIApplication sharedApplication]scheduleLocalNotification:localNotification];
}
Why my simple UILocalNotification is not firing?
Have you added this code in didFinishLaunchingWithOptions of AppDelegate
UIUserNotificationType types = (UIUserNotificationType) (UIUserNotificationTypeBadge |
UIUserNotificationTypeSound | UIUserNotificationTypeAlert);
UIUserNotificationSettings *mySettings =
[UIUserNotificationSettings settingsForTypes:types categories:nil];
[[UIApplication sharedApplication] registerUserNotificationSettings:mySettings];
I am not sure you added or not, but if you missed this, you will never get local as well as remote notification.
You have To Register Notification setting For Local and Remote Notification both Please Register notification setting First.
I'm building an app that allows its users to send each other messages. When a new message is received, it appears in the current user's Table view. I want my app to send the current user a notification when a new message arrives. Does anyone know how I might go about doing this?
I have notifications set up in my AppDelegate already:
appdelegate.m
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
// Let the device know we want to receive push notifications
[[UIApplication sharedApplication] registerUserNotificationSettings:[UIUserNotificationSettings settingsForTypes:(UIUserNotificationTypeSound | UIUserNotificationTypeAlert | UIUserNotificationTypeBadge) categories:nil]];
[[UIApplication sharedApplication] registerForRemoteNotifications];
}
and I know the below code will allow me to fire a notification at a specified time (e.g. set by a picker):
// Get the current date
NSDate *pickerDate = [self.datePicker date];
// Schedule the notification
UILocalNotification* localNotification = [[UILocalNotification alloc] init];
localNotification.fireDate = pickerDate;
localNotification.alertBody = self.itemText.text;
localNotification.alertAction = #"You are being notified!";
localNotification.timeZone = [NSTimeZone defaultTimeZone];
localNotification.applicationIconBadgeNumber = [[UIApplication sharedApplication] applicationIconBadgeNumber] + 1;
[[UIApplication sharedApplication] scheduleLocalNotification:localNotification];
// Request to reload table view data
[[NSNotificationCenter defaultCenter] postNotificationName:#"reloadData" object:self];
// Dismiss the view controller
[self dismissViewControllerAnimated:YES completion:nil];
How do I make a notification occur however when a new message is posted to the server (and appears in the tableview) for the logged in user?
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
UIUserNotificationSettings *settings = [UIUserNotificationSettings settingsForTypes:(UIUserNotificationTypeBadge|UIUserNotificationTypeSound|UIUserNotificationTypeAlert) categories:nil];
[[UIApplication sharedApplication] registerUserNotificationSettings:settings];}
If your system is iOS8, you need to register permission.
UILocalNotification * notification = [[UILocalNotification alloc] init];
NSDate * pushDate = [NSDate dateWithTimeIntervalSinceNow:Time];
if (notification!=nil) {
notification.fireDate= pushDate;
notification.timeZone = [NSTimeZone defaultTimeZone];
notification.repeatInterval = kCFCalendarUnitDay;
notification.soundName = UILocalNotificationDefaultSoundName;
notification.alertBody = #"Time O.K!";
NSLog(#"Ready");
notification.applicationIconBadgeNumber = 1;
//notification.applicationIconBadgeNumber = [[[UIApplication sharedApplication] scheduledLocalNotifications] count]+1;
NSDictionary * inforDic = [NSDictionary dictionaryWithObject:#"name" forKey:#"key"];
notification.userInfo =inforDic;
[[UIApplication sharedApplication] scheduleLocalNotification:notification];
}
You can have a try,this code I can successfully use on my device.
The code to register for notifications is:
UIUserNotificationType types = UIUserNotificationTypeBadge | UIUserNotificationTypeSound | UIUserNotificationTypeAlert;
UIUserNotificationSettings *mySettings = [UIUserNotificationSettings settingsForTypes:types categories:nil];
[[UIApplication sharedApplication] registerUserNotificationSettings:mySettings];
And the code to schedule the notification:
UILocalNotification *notification = [[UILocalNotification alloc] init];
[self setNotificationTypesAllowed];
if (notification)
{
if (allowNotif)
{
notification.timeZone = [NSTimeZone defaultTimeZone];
if ( [statusString isEqualToString:#"daily"]) {
notification.fireDate = _timePick.date;
notification.repeatInterval = NSCalendarUnitDay;
}else if ( [statusString isEqualToString:#"weekly"]) {
notification.fireDate = _timePick.date;
notification.repeatInterval = NSCalendarUnitWeekOfYear;
}else if ( [statusString isEqualToString:#"fortnightly"]) {
notification.fireDate = [NSDate dateWithTimeIntervalSinceNow:60*60*24*14];;
notification.repeatInterval = NSCalendarUnitMinute;
//notification.repeatInterval = NSCalendarUnitYear;
}else{
notification.repeatInterval = 0;
}
}
if (allowsAlert)
{
notification.alertBody = [NSString stringWithFormat:#"Do you really want to send message to %#",name];
}
if (allowsBadge)
{
notification.applicationIconBadgeNumber = [[UIApplication sharedApplication] applicationIconBadgeNumber] + 1;
}
if (allowsSound)
{
notification.soundName = UILocalNotificationDefaultSoundName;
}
notification.alertAction = #"Yes";
notification.timeZone = [NSTimeZone defaultTimeZone];
[[NSNotificationCenter defaultCenter] addObserver:self selector:#selector(showSMS) name:#"showSMS" object:nil];
// this will schedule the notification to fire at the fire date
[[UIApplication sharedApplication] scheduleLocalNotification:notification];
I am able to repeat local notification daily & weekly but it is not repeating fortnightly ,please help
Yes as #Nikos suggested, try below code:
Cancel UILocalNotification.
[[UIApplication sharedApplication] cancelAllLocalNotifications];
Schedule local notification
UILocalNotification *notification = [[UILocalNotification alloc]init];
notification.userInfo = #{#"notification_identifier":#"After14Days"};
notification.fireDate = [[NSDate date] dateByAddingTimeInterval:(60*60*24*14)];
notification.alertBody = #"Text to display";
notification.repeatInterval = NSCalendarUnitDay;
[[UIApplication sharedApplication] scheduleLocalNotification:notification];
If you have any doubt then let me know.
To set a notification to fire every 14 days you have to create 26 separate UILocalNotifications with the repeatInterval set to NSYearCalendarUnit (the repeat interval must be set to a calendar unit, and there is no 14 days CalendarUnit in iOS).
Another way to handle it is to cancel the UILocalNotification in the didReceiveLocalNotification method and schedule a new one there for after 14 days. This method though assumes that the user interacts with the notification, otherwise the next one will never get scheduled.
Is it possible to setup an app to send notifications from it's self at specified times? Perhaps by putting them in a queue? As of now I'm having to go through a push notification server and that seems like over kill when I'm sending messages out every Tuesday morning. Also, what is this called (so I can better research it on the web)
You can schedule notification like this:
- (void)scheduleNotification
{
//Cancel all previous Local Notifications
[[UIApplication sharedApplication] cancelAllLocalNotifications];
//Set new Local Notifications
Class cls = NSClassFromString(#"UILocalNotification");
if (cls != nil)
{
UILocalNotification *notif = [[cls alloc] init];
//3 days
notif.fireDate = [NSDate dateWithTimeInterval:60.0f*60.0f*24.0f*3.0f sinceDate:[NSDate date]];
notif.timeZone = [NSTimeZone defaultTimeZone];
notif.alertBody = #"Come Back Again! Lets blast All Zombie!";
notif.alertAction = #"PLAY";
notif.soundName = UILocalNotificationDefaultSoundName;
notif.applicationIconBadgeNumber = 1;
[[UIApplication sharedApplication] scheduleLocalNotification:notif];
}
}
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
[application registerForRemoteNotificationTypes:
UIRemoteNotificationTypeBadge |
UIRemoteNotificationTypeAlert |
UIRemoteNotificationTypeSound];
[self scheduleNotification];
..
}