I have this weird situation, my app support iOS7 and above. what it does, it's enabled Remote notifications by using silent notifications.
I know that iOS7 and iOS8 above has different logic to handle notification. I did this :
if ([[UIApplication sharedApplication] respondsToSelector:#selector(isRegisteredForRemoteNotifications)])
{
[[UIApplication sharedApplication] registerUserNotificationSettings:[UIUserNotificationSettings settingsForTypes:(UIUserNotificationTypeSound | UIUserNotificationTypeAlert | UIUserNotificationTypeBadge) categories:nil]];
[[UIApplication sharedApplication] registerForRemoteNotifications];
}
else {
[[UIApplication sharedApplication] registerForRemoteNotificationTypes:
(UIRemoteNotificationTypeBadge | UIRemoteNotificationTypeSound | UIRemoteNotificationTypeAlert)];
}
here's notification receives
{
aps = {
"content-available" = 1;
};
}
So what it does is, app receive silent notification, and then set localNotification, see below :
UILocalNotification *notification = [[UILocalNotification alloc] init];
notification.fireDate = [NSDate dateWithTimeIntervalSinceNow:5];
notification.soundName = UILocalNotificationDefaultSoundName;
notification.alertBody = #"testing";
notification.timeZone = [NSTimeZone defaultTimeZone];
[[UIApplication sharedApplication] scheduleLocalNotification:notification];
All it works in iOS8 and iOS9 in background mode and foreground mode. When app is in foreground, it will trigger didReceiveLocalNotification.
But when I was testing in iOS7, it doesn't work if the app is in background mode. I'm trying to figure out how this happen, while other OS working fine. I did test while app is open, it did receive push notification, and didReceiveLocalNotification get triggered. but when goes to background, nothing happen (no local push notification).
You didn't mention about enabling Background Fetch. Have you enabled it in your App Capabilities?
and set this in your AppDelegate.m
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
[application setMinimumBackgroundFetchInterval:UIApplicationBackgroundFetchIntervalMinimum];
return YES;
}
and this as your delegate method
-(void)application:(UIApplication *)application performFetchWithCompletionHandler:(void (^)(UIBackgroundFetchResult))completionHandler{
// do your thing here. maybe calling a view controller class or stuff
}
But if you're not into background fetch, try this instead:
{
aps = {
"content-available" : 1,
"sound" : ""
};
}
Good luck!
Im not exactly sure about the issue, but maybe you can try to change respondsToSelector. Refer to the following:
if ([UIApplication instancesRespondToSelector:#selector(registerUserNotificationSettings:)])
As pointed in this tread, aps need to include priority in order to work in iOS7.
aps = {
badge = 7;
"content-available" = 1;
priority = 5;
};
check this : https://stackoverflow.com/a/23917593/554740
Related
I'm new IOS developer, and i never worked before with push notification or local.
The user need to set a hour, for taken the push notification.
What need to do my application?
My application, sent everyday for every user who set before the hour a push notification. The push notification is always same.
Can anyone help me? How can i do that?
Link for refrence to set local notification :
http://www.appcoda.com/ios-programming-local-notification-tutorial/
http://www.icodeblog.com/2010/07/29/iphone-programming-tutorial-local-notifications/
//Replace following method in Appdelegate.m in First link's code
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
// Override point for customization after application launch.
//-- Set Notification
if ([[[UIDevice currentDevice] systemVersion] floatValue] >= 8.0)
{
[[UIApplication sharedApplication] registerUserNotificationSettings:[UIUserNotificationSettings settingsForTypes:(UIUserNotificationTypeSound | UIUserNotificationTypeAlert | UIUserNotificationTypeBadge) categories:nil]];
[[UIApplication sharedApplication] registerForRemoteNotifications];
}
else
{
[[UIApplication sharedApplication] registerForRemoteNotificationTypes:
(UIUserNotificationTypeBadge | UIUserNotificationTypeSound | UIUserNotificationTypeAlert)];
}
// Handle launching from a notification
UILocalNotification *locationNotification = [launchOptions objectForKey:UIApplicationLaunchOptionsLocalNotificationKey];
if (locationNotification) {
// Set icon badge number to zero
application.applicationIconBadgeNumber = 0;
}
return YES;
}
You can do this for local notification
NSDate *date = self.datePicker.date;
UILocalNotification *note = [[UILocalNotification alloc] init];
note.alertBody = #"Say Hello!";
note.fireDate = date;
[[UIApplication sharedApplication] scheduleLocalNotification:note];
Also you can use framework from parse.com for remote notifications
I am using following code for local notification. But It is not working. Location is successfully being updated and it get into these methods but notification is not being fired. Any idea?:
NOTE: It is working when the app is in background but not working when the app is closed.
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
if ([UIApplication instancesRespondToSelector:#selector(registerUserNotificationSettings:)]){
[application registerUserNotificationSettings:[UIUserNotificationSettings settingsForTypes:UIUserNotificationTypeAlert|UIUserNotificationTypeBadge|UIUserNotificationTypeSound categories:nil]];
}
[[UIApplication sharedApplication] cancelAllLocalNotifications];
// Override point for customization after application launch.
self.locationManager = [[CLLocationManager alloc] init];
self.locationManager.delegate = self;
return YES;
}
-(void) locationManager:(CLLocationManager *)manager didEnterRegion:(CLRegion *)region {
if ([region isKindOfClass:[CLBeaconRegion class]]) {
UILocalNotification *notification = [[UILocalNotification alloc] init];
notification.alertBody = #"You are checked in";
notification.soundName = #"Default";
[[UIApplication sharedApplication] presentLocalNotificationNow:notification];
}
}
You should keep in mind that notifications present only when your app in background, not at the foreground. If your are in foreground implement - application:didReceiveLocalNotification: of the AppDelegate and handle notification manually by yourself.
UPD
If your app is not running even in background, your code will not be executed. Look for Background modes (Tracking the User’s Location section) for possible solutions in order to ask system launch your app by events even currently it is not in the memory
My case was the notification was disabled from the
Settings -> Notifications -> YOUR_APP -> Allow Notifications
Local notification will work even your application removed from the background. But in your case, you are listening to the location manager event and triggering the local notification inside the delegate method. Your location manager event will not get triggered once you killed the application. So your local notification will not get triggered at all.
Wen app is closed applicationDidEnterBackground was called so put this background task code. and class the local notification.
- (void)applicationDidEnterBackground:(UIApplication *)application
{
bgTask = [application beginBackgroundTaskWithName:#"MyTask" expirationHandler:^{
// Clean up any unfinished task business by marking where you
// stopped or ending the task outright.
[application endBackgroundTask:bgTask];
bgTask = UIBackgroundTaskInvalid;
}];
// Start the long-running task and return immediately.
dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
// Do the work associated with the task, preferably in chunks.
[application endBackgroundTask:bgTask];
bgTask = UIBackgroundTaskInvalid;
});
//// just u call the method want ever u want example
[self notification];
}
- (void)notification
{
UILocalNotification *notification = [[UILocalNotification alloc] init];
notification.alertBody = #"You are checked in";
notification.soundName = #"Default";
[[UIApplication sharedApplication] presentLocalNotificationNow:notification];
}
I think this is helpful to u.
When your app gets killed, beacon monitoring will still relaunch it — that's the great thing about beacon monitoring!
All you need to do is re-start the monitoring in the application:didFinishLaunchingWithOptions: method. If you do that, the didEnterRegion event which resulted in launch of the app will immediately get delivered to the delegate, which should trigger the notification.
Estimote has a more detailed guide:
Launching notifications in iOS when the app is killed. It uses ESTBeaconManager, ESTBeaconManagerDelegate and ESTBeaconRegion classes from the Estimote SDK, but you can simply replace these with regular Core Location classes for the same effect.
I have seen too many questions about the silent push notification does not work if the device is not connected to xcode, but I could not find the real answer.
I'm using Silent APN to start a process in background and then fire a local Push notification
Server sends this info:
"_metadata" = {
bagde = 1;
pushText = "semeone has sent you a message!!";
sender = "semeone";
};
aps = {
"content-available" = 1;
};
And _metadata is customized info to fire the local notification, I did not included badge, pushText.. in aps because I it is a silent push notification.
Client should get the info in didReceiveRemoteNotification,
-(void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo fetchCompletionHandler:(void (^)(UIBackgroundFetchResult))completionHandler
{
if(application.applicationState != UIApplicationStateActive ){
if([userInfo[#"aps"][#"content-available"] intValue]== 1) //it's the silent notification
{
//start a background task
UIBackgroundTaskIdentifier preLoadPNTask = [[UIApplication sharedApplication] beginBackgroundTaskWithExpirationHandler:^{
NSLog(#"Background task to start a process ");
}];
//end completionHandler regarding to fetchCompletionHandler
completionHandler(UIBackgroundFetchResultNewData);
// doing my process...... and fire a local notification
if(preLoadPNTask){
NSLog(#"End Background task ");
[[UIApplication sharedApplication] endBackgroundTask:preLoadPNTask];
preLoadPNTask = 0;
}
return;
}
else
{
NSLog(#"didReceiveRemoteNotification it's NOT the silent notification ");
completionHandler(UIBackgroundFetchResultNoData);
return;
}
}
else {
if(preLoadPNTask){
NSLog(#"End Background task ");
[[UIApplication sharedApplication] endBackgroundTask:preLoadPNTask];
preLoadPNTask = 0;
}
completionHandler(UIBackgroundFetchResultNewData);
}
}
It works perfectly fine when the device is connecting to xcode, but when it doesn't, the didReceiveRemoteNotification doesn't start :(
Any ideas?
Thank you in advance!!
What I end up is a cable USB was cause me some issues apparently every time that I plugged in the iphone device said that "this accessory may not be supported" but it continue working normally , so I replace for a new one, but that not solve my issue, however can be part of this. so I looked in the code, and I did some changes, after receive 2 o more silent push notification preLoadPNTask (UIBackgroundTaskIdentifier) was creating many times so I added a validation before it start,
if(!preLoadPNTask){
//start a background task
UIBackgroundTaskIdentifier preLoadPNTask = [[UIApplication sharedApplication] beginBackgroundTaskWithExpirationHandler:^{
NSLog(#"Background task to start a process ");
}];
}
I hope this help you
Regards
In ios 8, You need to the following steps to fire didReceiveRemoteNotification: method
Select project target goto Capabilities tab
Select 'Background modes' turn on.
It'll add a key (Required background modes)in your project info.plist
After these modifications, when you get a apple push notification and if the app is in background already then didReceiveRemoteNotification will be fired.
Probably because under iOS 8 you have to ask for push notifications in a different way. Try this:
-(void) registerForPushNotifications {
UIApplication* application=[UIApplication sharedApplication] ;
// Register for Push Notitications, if running iOS 8
if ([application respondsToSelector:#selector(registerUserNotificationSettings:)]) {
UIUserNotificationType userNotificationTypes = (UIUserNotificationTypeAlert | UIUserNotificationTypeBadge | UIUserNotificationTypeSound);
UIUserNotificationSettings *settings = [UIUserNotificationSettings settingsForTypes:userNotificationTypes categories:nil];
[application registerUserNotificationSettings:settings];
[application registerForRemoteNotifications];
} else {
// Register for Push Notifications before iOS 8
[application registerForRemoteNotificationTypes:(UIRemoteNotificationTypeBadge | UIRemoteNotificationTypeAlert | UIRemoteNotificationTypeSound)];
}
}
Im working on an app that does some computationally heavy tasks that take a long time. I want to notify the user with a local push notification when the task is done. Is this possible? The only information I have been able to find online is to do with triggering notifications at certain times/dates or if the app has entered the background or terminated, all of which is done in the appDelegate. Is there a way to do this in my own classes?
Thanks.
I'm not 100% certain you're looking for a UILocalNotification example because the post title mentions push notifications. Either way, you can schedule local notifications from any class you want
- (void)throwLocalNotificationWithMessage:(NSString*)message {
UILocalNotification *localNotification = [[UILocalNotification alloc] init];
NSDate *now = [NSDate date];
localNotification.fireDate = now;
localNotification.alertBody = message;
localNotification.soundName = UILocalNotificationDefaultSoundName;
[[UIApplication sharedApplication] scheduleLocalNotification:localNotification];
[UIApplication sharedApplication].applicationIconBadgeNumber++;
}
Also, for my needs I throw these local notifications when region monitoring detects boundary enter/exit changes. This code runs while my app is in the background, as well, and in that case they appear like push notifications.
The above answer by Aaron works fine but don't forget to ask permission for Local Notification. In my case case I ask permission at AppDelegate under -
(BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
and here is the code for iOS8 and iOS9
if ([application respondsToSelector:#selector(registerUserNotificationSettings:)]) {
[application registerUserNotificationSettings:[UIUserNotificationSettings settingsForTypes:UIUserNotificationTypeAlert|UIUserNotificationTypeBadge|UIUserNotificationTypeSound categories:nil]];
}
I understand we can check if a user has enabled/disabled Remote Notification with this code:
[[UIApplication sharedApplication] enabledRemoteNotificationTypes]
But what about checking for Local Notification?
I don't find a corresponding property for local notification types, and I have verified that enabledRemoteNotificationTypes is only for remote notifications.
And we all know, users can edit their Notification settings, which will affect both remote and local.
I'm not sure, but I don't think you can access this information.
One way you can check if the user has notifications enabled for your app is to send yourself a local notification with a 1 second delay :
UILocalNotification *testNotification = [[UILocalNotification alloc] init];
localNotification.fireDate = [NSDate dateWithTimeIntervalSinceNow:1];
localNotification.alertBody = #"Test notification";
localNotification.timeZone = [NSTimeZone defaultTimeZone];
[[UIApplication sharedApplication] scheduleLocalNotification:localNotification];
And check if you catch it in :
-(void)application:(UIApplication *)application didReceiveLocalNotification:(UILocalNotification *)notification) {
// If you get here, notifications are enabled
}
All there is left is add info (e.g in localNotification.userInfo) so you can know in didReceiveLocalNotification: if you are handling your test notification, or if it's a "real" notification.
- (BOOL) isLocalNotificationsEnable {
if ([[UIApplication sharedApplication] respondsToSelector:#selector(currentUserNotificationSettings)]) {
UIUserNotificationSettings *grantedSettings = [[UIApplication sharedApplication] currentUserNotificationSettings];
return (grantedSettings.types == UIUserNotificationTypeNone) ? NO : YES;
}
return NO;
}
Note: the if block is only require if you're targeting < iOS 8.0.