First I want to know, which specific method is called when i tap on local notification. I want to open a url upon tap on notification. below is code app delegate.
Now the issue is, url opens automatically even if i don't tap on notification. Please guide me if u know that. Thank you
- (void)application:(UIApplication *)application didReceiveLocalNotification: (UILocalNotification *)notifyAlarm
{
application.applicationIconBadgeNumber = 0;
NSLog(#"Notification tapped :) ");
[[UIApplication sharedApplication] openURL:[NSURL URLWithString:#"http://www.google.com.pk"]]; }
- (void)application:(UIApplication *)application didReceiveLocalNotification: (UILocalNotification *)notifyAlarm
This methos is called every time when notification fire.
To open url when tap on notification you have to check state of the app.
- (void)application:(UIApplication *)application didReceiveLocalNotification:(UILocalNotification *)notification
{
UIApplicationState appState = UIApplicationStateActive;
if ([application respondsToSelector:#selector(applicationState)])
appState = application.applicationState;
if (appState == UIApplicationStateActive)
{
// Don't open Url.
}
else
{
// Open Url.
}
}
Have a look at the Local and Remote Notification Programming Guide from Apple, section "Handling Local and Remote Notifications".
If the action button is tapped (on a device running iOS), the system launches the application and the application calls its delegate’s application:didFinishLaunchingWithOptions: method (if implemented); it passes in the notification payload (for remote notifications) or the local-notification object (for local notifications).
Later is says
[...] get the value of the applicationState property and evaluate it. If the value is UIApplicationStateInactive, the user tapped the action button; if the value is UIApplicationStateActive, the application was frontmost when it received the notification.
Try to check application.applicationState. If the app isn't active in the foreground , then not open URL.
Related
An app is running on iPhone and user tap the home button once and app will enter background.
after 2 or 3 seconds local notification arrives and user tap on local notification.
app will again enter in foreground and become active and didReceiveLocalNotification will be called.
How to determine that app become active by tapping on local notification not the app icon.
Here is an easy way to detect what's your App's status when UILocalNotification fired and if
- (void)application:(UIApplication *)application didReceiveLocalNotification:(UILocalNotification *)notification
is called, this makes sure that local notification is received.
- (void)application:(UIApplication *)application didReceiveLocalNotification:(UILocalNotification *)notification {
UIApplicationState state = [application applicationState];
if (state == UIApplicationStateInactive) {
// Application was in the background when notification was delivered.
} else {
}
}
Is there a way in AppDelegate to get a queue of all the notification data? (Once the user opens the app).
As per apple documentation:
When a remote notification arrives, the system calls the application:didReceiveRemoteNotification:fetchCompletionHandler: method. Notifications usually signal the availability of new information. In your app delegate method, you might begin downloading new data from a server so that you can update your app’s data structures. You might also use the notification to update your user interface.
You have to enable remote notification background mode, only then you will get a callback to the above mentioned method.
Try this in your app delegate:
- (void)application:(UIApplication *)application
didReceiveRemoteNotification:(NSDictionary *)userInfo
fetchCompletionHandler:(void (^)(UIBackgroundFetchResult))completionHandler
For UILocalNotification, you can get received notifications by calling following function in your AppDelegate:
- (void)application:(UIApplication *)application didReceiveLocalNotification:(UILocalNotification *)notification {
UIApplicationState state = [application applicationState];
if (state == UIApplicationStateInactive) {
// Application was in the background when notification was delivered.
}
}
If you want to find the list of local Notifications, that app has already set, check this solution.
You can check for launchOptions Dictionary, for received Notification, when App resumes on tapping a notification,
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
// Override point for customization after application launch.
NSLog(#"Launch Options:%#",launchOptions);
return YES;
}
In my app I am using uilocalnotifications. Every thing is ok but one thing. I need to show notifications's alertbody. If app is in foreground state it's fine, but if app is at background state and notification occurs, when i tap on that didReceiveLocalNotification doesn't get called. Obviously didFinishLaunchingWithOptions is also don't called at that time. So what should i do to handle the notification. I am using ios7 and xcode5. Thanks very much in advance if you could help me.
For an app which is not in the foreground, the local notification can subsequently be found in the
-applicationDidFinishLaunchingWithOptions method
UILocalNotification *localNotif =
[launchOptions objectForKey:UIApplicationLaunchOptionsLocalNotificationKey];
if (localNotif) {
//Handle local notification here.
}
You can read Apple's documentation for handling notifications here.
If the app is currently in memory, you can check it's state in the following way:
- (void)application:(UIApplication *)app didReceiveLocalNotification:(UILocalNotification *)notif
{
if (app.applicationState == UIApplicationStateInactive )
{
NSLog(#"app not running");
}
else if(app.applicationState == UIApplicationStateActive )
{
NSLog(#"app running");
}
}
if application is closed and notification is raised then for that you have to write below code in appdidfinishlaunching method
// Handle launching from a notification
UILocalNotification *objLocalNotif =
[launchOptions objectForKey:UIApplicationLaunchOptionsLocalNotificationKey];
if (objLocalNotif)
{
NSLog(#"At the time of launching Recieved Notification %#",objLocalNotif);
//Do your stuff here
}
If application is in background and when any local notification is raised the following method of app delegate get called.
- (void)application:(UIApplication *)app didReceiveLocalNotification:(UILocalNotification *)notif {
// Handle the notificaton when the app is running
NSLog(#"Recieved Notification %#",notif);
//do your stuff here
}
Write your code in the below method
- (void)applicationWillEnterForeground:(UIApplication *)application
it will be called when you open your application again which has not been terminated fully but still running in background
I am using local notification in my app, the only thing i care about is what exact notification the user clicked.
the method
-(void)application:(UIApplication *)application didReceiveLocalNotification:(UILocalNotification *)notification
triggered when the notification is received but i need to handle the notification when the user clicked on it so this is useless to me.
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
triggered only when app was not running, also not what i need
i searched the net but found only handles if the app is active or not running. how can i handle it when the app is on the background?
what i need in other words is to recognise the exact notification that the user clicked when the app was running on the background
When creating your UILocalNotification, you can set the userInfo to set any associated data/unique identifiers.
Ex.
UILocalNotification *someNotification = [[UILocalNotification alloc] init];
[someNotification setUserInfo:#{ kSomeUniqueIdentifierKey : #"identifier" }];
and then,
-(void)application:(UIApplication *)application didReceiveLocalNotification:(UILocalNotification *)notification
{
if ([notification.userInfo[kSomeUniqueIdentifierKey] isEqualToString:#"identifier"]) {
// We know what notification was responded to based on userInfo
}
}
The above method fires either immediately upon receiving the notification while the app was running or when the user taps the notification that fired while your app was in the background.
If you want to ignore these notifications while the app is running, you could always check the state of the application to determine if it's responding to the notification while running or in the background.
I am working with iOS 9, and the solution is to check the launchOptions within the AppDelegate didFinishLaunchingWithOptions. As follows:
// Were we launched from a local notification?
if let lo = launchOptions
{
if let ln = lo[UIApplicationLaunchOptionsLocalNotificationKey] as? UILocalNotification
{
// Do our thing...
}
}
Can I find out which event launching the application on iOS ?
I need to distinguish between the followings:
Icon tap
Banner notification
Alert notification
Alternatively, can I view the application local settings (set for Banner or alert notification)?
To determine if the app was launched from the using pressing a notification, you need to implement 2 methods.
First, in application didFinishLaunchingWithOptions, do something like:
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
if ([launchOptions valueForKey:#"UIApplicationLaunchOptionsRemoteNotificationKey"]) {
// Handle notification
}
Second:
-(void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo {
if (application.applicationState == UIApplicationStateActive) {
// The app was open when a remote notification was received...
} else {
// The app was in the background and just came to the foreground in response to the user pressing the push notification
}
}
You can view which notification types have been enabled using:
UIRemoteNotificationType notificationTypes = [[UIApplication sharedApplication] enabledRemoteNotificationTypes];
However, you can't distinguish between Banner or Alert notifications.