我的应用程序是否显示第二次通知 iOS 9

我收到了重复的通知。对于远程通知和本地通知。

我使用了以下代码

[application registerUserNotificationSettings:[UIUserNotificationSettings settingsForTypes:UIUserNotificationTypeAlert|UIUserNotificationTypeBadge|UIUserNotificationTypeSound categories:nil]];

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)];
}

-(void)application:(UIApplication *)application didRegisterForRemoteNotificationsWithDeviceToken:(NSData *)deviceToken{
NSString *strDevicetoken = [[NSString alloc]initWithFormat:@"%@",[[[deviceToken description] stringByTrimmingCharactersInSet:[NSCharacterSet characterSetWithCharactersInString:@"<>"]] stringByReplacingOccurrencesOfString:@" " withString:@""]];
NSLog(@"devicetoken = %@",strDevicetoken);}

我总是收到重复的推送通知。

我遇到了类似的问题，就我而言，问题出在调用方法上registerUserNotificationSettings:两次。似乎在 iOS 9 上调用此方法超过 1 次会导致重复通知。

因此，如果您遇到同样的情况，请尝试以下两个步骤：

1. 删除所有额外的调用registerUserNotificationSettings:在 你的代码。
2. 然后重新安装应用程序。

这应该可以解决问题。