If my application is started and only started.
I implemented application:didReceiveRemoteNotification: to receive the payload.
If a message is sent to my iPhone, is this method called for every registration type, such as the following one?
[[UIApplication sharedApplication]
registerForRemoteNotificationTypes:**UIRemoteNotificationTypeNone**]; //1
[[UIApplication sharedApplication]
registerForRemoteNotificationTypes:**UIRemoteNotificationTypeBadge**]; //2
[[UIApplication sharedApplication]
registerForRemoteNotificationTypes:**UIRemoteNotificationTypeSound**]; //3
[[UIApplication sharedApplication]
registerForRemoteNotificationTypes:**UIRemoteNotificationTypeAlert**]; //4
I have a big doubt for solution 1...
The method only needs to be called once. The types argument is a bitmask of the types that you wish to register for:
[[UIApplication sharedApplication] registerForRemoteNotificationTypes: UIRemoteNotificationTypeBadge | UIRemoteNotificationTypeSound];
The code above would register for Badge and Sound remote notifications.
Related
Once i click a notification, all the notifications are cleared.In ios, is there any option to clear a single notification after tapping on it? i have received 4 notifications. now i need the clicked notification alone to get cleared and retain the other ones.Can anyone help me on this?
- (void) clearNotifications {
[[UIApplication sharedApplication] setApplicationIconBadgeNumber: 0];
[[UIApplication sharedApplication] cancelAllLocalNotifications];
}
- (void)application:(UIApplication*)application didReceiveRemoteNotification:(NSDictionary*)userInfo
{
NSLog(#"Received notification: %#", userInfo);
[self clearNotifications];
}
-(void)application:(UIApplication *)application didReceiveLocalNotification:(UILocalNotification *)notification
{
// when you tap on any of notification this delegate method will call...
[[UIApplication sharedApplication] cancelLocalNotification:notification];
}
I can't test this code properly until later tonight, but to avoid some mistake beforehand, can this be used to turn on and off notification? The NSUserDefault is from a switch statement and should be self explanatory. Does registering and unregistering mimic what the iOS setting push notification switch does (turn notification on and off)?
-(void)notification{
if ([[NSUserDefaults standardUserDefaults] boolForKey:#"Switch"]) {
[[UIApplication sharedApplication] registerForRemoteNotificationTypes:(UIRemoteNotificationTypeBadge | UIRemoteNotificationTypeSound | UIRemoteNotificationTypeAlert)];
}
if (![[NSUserDefaults standardUserDefaults] boolForKey:#"Switch"]) {
[[UIApplication sharedApplication]unregisterForRemoteNotifications];
}
}
Is there a way to programmatically remove/dismiss UILocalNotification from Notification Tray.
I am able to cancel the notification which removes the notifications from
[[UIApplication sharedApplication] scheduledLocalNotifications]
Here is what i need to do
I need to dismiss the UILocalNotification from NotificationTray after the action has been performed(ie after the user taps the notification)
EDIT:
I can remove the notifications from the NSNotificationCenter. I want to remove specific notifications from the Notification Tray .Like the user presses the clear button to clear all the notifications belonging to a particular application.
You can cancel all notifications using:
[[UIApplication sharedApplication] cancelAllLocalNotifications];
If you want to remove a particular notification, you can use userinfo of notification object, when you create a local notification add a unique ID to that. Later you can use that ID for removing local notification.
For that you can use the following code:
NSString *notificationId = #"id_to_cancel";
UILocalNotification *notification = nil;
for(UILocalNotification *notify in [[UIApplication sharedApplication] scheduledLocalNotifications])
{
if([[notify.userInfo objectForKey:#"ID"] isEqualToString:notificationId])
{
notification = notify;
break;
}
}
[[UIApplication sharedApplication] cancelLocalNotification:notification];
I believe I had a similar issue. When the app entered the foreground I attempted to clear past notifications to remove any old notifications from the notifications tray.
I did something like this to grab old notifications and remove them:
NSArray *activeNotifications = [[UIApplication sharedApplication] scheduledLocalNotifications];
NSArray *pastNotifications = [activeNotifications filteredArrayUsingPredicate:[NSPredicate predicateWithFormat:#"firDate < %#", [NSDate date]]];
for (UILocalNotification *notification in pastNotifications) {
[[UIApplication sharedApplication] cancelLocalNotification:notification];
}
However, it seems that scheduledLocalNotifications does not include locations whose fire date is already past even though they still appear in notification center.
Calling cancelAllLocalNotifications does seem to remove past notifications as well. So we can grab all the current notifications, cancel everything, and then add the ones we're still interested in back.
// Grab all the current notifications
NSArray *activeNotifications = [[UIApplication sharedApplication] scheduledLocalNotifications];
// Clear all notifications to remove old notifications
[[UIApplication sharedApplication] cancelAllLocalNotifications];
// Add back the still relevant notifications
for (UILocalNotification *notification in activeNotifications) {
[[UIApplication sharedApplication] scheduleLocalNotification:notification];
}
Additionally we can do some filtering of the notifications before adding them back if some are no longer needed, and we can grab the active notifications when the app becomes active, store them in an instance variable, and only add them back when the app moves to the background
[UIApplication sharedApplication].applicationIconBadgeNumber = 0;
will do some trick too
but if you didnot use applicationIconBadgeNumber, it will not work, so trick is set
applicationIconBadgeNumber first :)
[[UIApplication sharedApplication] setApplicationIconBadgeNumber:1];
If the Application is not running, you will be receiving the Local Notification object in the
-applicationDidFinishLaunchingWithOptions:
like:
UILocalNotification *localNotif = [launchOptions objectForKey: UIApplicationLaunchOptionsLocalNotificationKey];
or else you can get it in
(void)application:(UIApplication *)application didReceiveLocalNotification:(UILocalNotification *)notification
Now you can remove it from the Notification Center using
[[UIApplication sharedApplication]
cancelLocalNotification:notificationToCancel];
// deletes a pushnotification with userInfo[id] = id
-(void)deleteLocalPushNotificationWithId:(NSString*)id{
for(UILocalNotification *notification in [[UIApplication sharedApplication] scheduledLocalNotifications]){
if([[notification.userInfo objectForKey:#"id"] isEqualToString:id]){
[[UIApplication sharedApplication] cancelLocalNotification:notification];
}
}
}
// deletes all fired pushnotifications
-(void)clearLocalPushNotifications{
NSArray *activeNotifications = [[UIApplication sharedApplication] scheduledLocalNotifications];
// Clear all notifications to remove old notifications
[[UIApplication sharedApplication] cancelAllLocalNotifications];
// Add back the still relevant notifications
for (UILocalNotification *notification in activeNotifications) {
[[UIApplication sharedApplication] scheduleLocalNotification:notification];
}
}
I was fiddling with some code and I was wondering why local notifications are stored in the notification center if the application is in the foreground. It's probably because Apple doesn't know what you are doing with them and honestly doesn't care; so they do their job.
As far as the question is concerned, I do the following:
- (void)application:(UIApplication *)application didReceiveLocalNotification:(UILocalNotification *)notification
{
if (application.applicationState == UIApplicationStateActive)
{
NSLog(#"active");
// display some foreground notification;
[application cancelLocalNotification:notification];
}
else
{
NSLog(#"inactive");
}
}
So I just read this thread about how to close/remove all the already fired local notifications from the Notification center, if the user opens the app by clicking the app icon, not the notification. But after all of this, the other scheduled local notification should fire in the future.
Here is my easy solution for this, which should be triggered on application did becomeActive:
UIApplication* application = [UIApplication sharedApplication];
NSArray* scheduledNotifications = [NSArray arrayWithArray:application.scheduledLocalNotifications];
application.scheduledLocalNotifications = scheduledNotifications;
I ve tried the [[UIApplication sharedApplication] cancelLocalNotification:notification]; but it did not clear the already fired local notifications from the Notification center (outside of the app).
I would like to remove old notifications that my app has made from the iOS 5 Notification Center. Can I do this? If so, how?
To remove notifications from the Notification Center simply set your icon badge number to zero.
[[UIApplication sharedApplication] setApplicationIconBadgeNumber:0];
This only works if the number changes, so if your app doesn't use the badge number you have to first set, then reset it.
[[UIApplication sharedApplication] setApplicationIconBadgeNumber:1];
[[UIApplication sharedApplication] setApplicationIconBadgeNumber:0];
A more straightforward method that I use (and doesn't require badges) is to reset the array of scheduled local notifications to itself, as follows:
UIApplication* application = [UIApplication sharedApplication];
NSArray* scheduledNotifications = [NSArray arrayWithArray:application.scheduledLocalNotifications];
application.scheduledLocalNotifications = scheduledNotifications;
This has the effect that any scheduled notifications remain valid, while all "old" notifications that are present in Notification Center are removed. However, it also has the feel of something that might change in a future release of iOS, as I haven't seen any documentation for this behavior.
Of course, if you want to remove all notifications, it's simply the following:
[[UIApplication sharedApplication] cancelAllLocalNotifications];
Yes, you can cancel specific or all local notifications by calling
[[UIApplication sharedApplication] cancelLocalNotification:...];
or
[[UIApplication sharedApplication] cancelAllLocalNotifications];
If you want to clear notifications in swift and iOS 10.0
import UserNotifications
if #available(iOS 10.0, *) {
let center = UNUserNotificationCenter.current()
center.removeAllPendingNotificationRequests() // To remove all pending notifications which are not delivered yet but scheduled.
center.removeAllDeliveredNotifications() // To remove all delivered notifications
}
For me it only worked with sending a local notification with only a badge like this:
if([UIApplication sharedApplication].applicationIconBadgeNumber == 0) {
UILocalNotification *singleLocalPush = [[UILocalNotification alloc] init];
singleLocalPush.fireDate = [NSDate dateWithTimeIntervalSinceNow:1];
singleLocalPush.hasAction = NO;
singleLocalPush.applicationIconBadgeNumber = 1;
[[UIApplication sharedApplication] scheduleLocalNotification:singleLocalPush];
[singleLocalPush release];
} else {
[[UIApplication sharedApplication] setApplicationIconBadgeNumber:0];
}
And in the method
-(void)application:(UIApplication *)application didReceiveLocalNotification:(UILocalNotification *)notification
I can set the badge to 0 again.
I have developed an appointment application. When I receive a push notification, I want to make a call to a particular person, but right now it is just opening the application when I get a push notification.
How do I write a code to make a call to a particular appointment as I get the push notification of that appointment?
For push notification you have to code in appDelegate,
- (void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo {
[[UIApplication sharedApplication] openURL:[NSURL URLWithString:[NSString stringWithFormat:#"tel://%#",[userInfo valueForKey:#"phno"]]]];
}
For local notification,
-(void) application:(UIApplication *)application didReceiveLocalNotification:(UILocalNotification *)notification
{
[[UIApplication sharedApplication] openURL:[NSURL URLWithString:[NSString stringWithFormat:#"tel://%#",[notification.userInfo valueForKey:#"phno"]]]];
}
Upon notification, open the dialer app with the given phone number. Note: this will initially launch your app, then quickly switch to the dialer.
- (void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo {
[[UIApplication sharedApplication] openURL:[NSURL URLWithString:#"tel://5555555555"]];
}