There are devices that are not notified by push notification and notification center in the application currently under development.
I would appreciate it if you could tell me the possible causes of the following conditions.
Even if you can't be sure, it's a possible cause.
How Notifications Work
①User sets time
②Notify Silent Push
③Access the server from the app side to get updates
④Push notification of updates to notification center
About Notifications
When starting the application (foreground)
iphone6 <
iphone6-2 <
iphone6-3 <
iphone6s <
iphone7x
iphone7x
End of Application (Background)
iphone6 <
iphone 6-2x
iphone 6-3x
iphone6s <
iphone7x
iphone7x
iphone sleep (background)
iphone6 <
iphone 6-2x
iphone 6-3x
iphone6s <
iphone7x
iphone7x
US>Version
iphone6 10.3.1
iphone 6-210.3.1
iphone 6-310.2.1
iphone 6s 10.3.1
iphone 7 10.3.1
iphone 7 10.3.1
Other Conditions
US>All notification settings are turned on
Install from testflight
US>Install on a total of 6 units
3 iphone 6s
Results are the same for both 4G lines and wifi environments
One thing I would like to point out is where registerForRemoteNotifications runs.
if(floor(NSFoundationVersionNumber)<=NSFoundationVersionNumber_iOS_9_x_Max){
// iOS 9 and below
UIUserNotificationType types = UIUserNotificationTypeBadge | UIUserNotificationTypeSound | UIUserNotificationTypeAlert;
UIUserNotificationSettings*settings=[UIUserNotificationSettingsForTypes:types categories:nil];
[[UIAApplication sharedApplication] registerUserNotificationSettings:settings];
[[UIAApplication sharedApplication] registerForRemoteNotifications];
} else{
// iOS 10 or higher
UNAUTHORIZATIONOptions = UNAUTHORIZATIONOptionAlert | UNAUTHORIZATIONOptionBadge | UNAUTHORIZATIONOptionSound;
[[UNUserNotificationCenter currentNotificationCenter] requestAuthorizationWithOptions:options completionHandler:^(BOOL graded, NSError*_Nullable error){
if(granted){
// US>Notification allowed or allowed
[[UIAApplication sharedApplication] registerForRemoteNotifications];
}
}];
[[UNUserNotificationCenter currentNotificationCenter] setDelegate:self];
}
iOS 10 and later run requestAuthorizationWithOptions to display notification authorization alerts to users.
Since this result will enter granted, run registerForRemoteNotifications only if the user explicitly permits notification.
Thank you for your reply.
Thank you very much for giving me detailed instructions, which could be a clue to finding the cause.
First, we will try to log the server to determine the cause.
And what do you think of this code for this problem?
if(floor(NSFoundationVersionNumber)<=NSFoundationVersionNumber_iOS_9_x_Max){
UIUserNotificationType allNotificationTypes=
(UIUserNotificationTypeSound | UIUserNotificationTypeAlert | UIUserNotificationTypeBadge);
UIUserNotificationSettings*settings=
UIUserNotificationSettings settingsForTypes: allNotificationTypes categories:nil;
[[UIAApplication sharedApplication] registerUserNotificationSettings:settings];
} else{
// iOS 10 or later
UNAauthorizationOptions authOptions=
UNAUTHORIZATION OPTION
| UNAUTHORIZATION OPTION
| UNAUTHORIZATION OPTIONBADGE;
[UNUserNotificationCenter currentNotificationCenter]
requestAuthorizationWithOptions —authOptions
completionHandler:^(BOOL graded, NSError*_Nullable error){
}
];
// For iOS 10 display notification (sent via APNS)
[[UNUserNotificationCenter currentNotificationCenter] setDelegate:self];
// For iOS 10 data message (sent via FCM)
}
[[UIAApplication sharedApplication] registerForRemoteNotifications];
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