iOS 10请求通知权限触发两次 [英] iOS 10 Request Notification Permission fires twice

问题描述

当我在 iOS 10 上启动我的应用程序时，两次获得请求通知许可. 第一个短暂出现并立即消失而没有允许我做任何动作，然后我得到第二个弹出窗口，其正常行为等待来自的"allow" 或"deny" 用户.

When I launch my app on iOS 10, I get the request notification permission twice. The first one briefly appears and disappears immediately without allowing me to do any actions, then I got the second popup with a normal behaviour waiting for "allow" or "deny" from the user.

这是我的代码，在 iOS 10 之前运行良好.

Here is my code that worked well before iOS 10.

在 AppDelegate 中的 didFinishLaunchingWithOptions 方法中:

if ([application respondsToSelector:@selector(registerUserNotificationSettings:)]) {
#ifdef __IPHONE_8_0

    UIUserNotificationSettings *settings = [UIUserNotificationSettings settingsForTypes:(UIRemoteNotificationTypeBadge
                                                                                         |UIRemoteNotificationTypeSound
                                                                                         |UIRemoteNotificationTypeAlert) categories:nil];
    [application registerUserNotificationSettings:settings];
#endif
} else {
    UIRemoteNotificationType myTypes = UIRemoteNotificationTypeBadge | UIRemoteNotificationTypeAlert | UIRemoteNotificationTypeSound;
    [application registerForRemoteNotificationTypes:myTypes];
}

我应该为iOS 10实现一些功能，以解决此双重请求权限吗?

Should I implement something for iOS 10 in order to fix this double request permission ?

推荐答案

对于iOS 10，我们需要在appDelegate didFinishLaunchingWithOptions方法中调用UNUserNotificationCenter.

For iOS 10 we need to call the UNUserNotificationCenter in appDelegate didFinishLaunchingWithOptions method.

首先，我们必须导入UserNotifications框架并在Appdelegate中添加UNUserNotificationCenterDelegate

AppDelegate.h

AppDelegate.h

#import <UIKit/UIKit.h>
#import <UserNotifications/UserNotifications.h>

@interface AppDelegate : UIResponder <UIApplicationDelegate,UNUserNotificationCenterDelegate>

@property (strong, nonatomic) UIWindow *window;

@end

AppDelegate.m

AppDelegate.m

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
   if([[[UIDevice currentDevice]systemVersion]floatValue]<10.0)
   {
      [[UIApplication sharedApplication] registerUserNotificationSettings:[UIUserNotificationSettings settingsForTypes:(UIUserNotificationTypeSound |    UIUserNotificationTypeAlert | UIUserNotificationTypeBadge) categories:nil]];
      [[UIApplication sharedApplication] registerForRemoteNotifications];
   }
   else
   {
      UNUserNotificationCenter *center = [UNUserNotificationCenter currentNotificationCenter];
      center.delegate = self;
      [center requestAuthorizationWithOptions:(UNAuthorizationOptionSound | UNAuthorizationOptionAlert | UNAuthorizationOptionBadge) completionHandler:^(BOOL granted, NSError * _Nullable error)
      {
         if( !error )
         {
             [[UIApplication sharedApplication] registerForRemoteNotifications];
             NSLog( @"Push registration success." );
         }
         else
         {
             NSLog( @"Push registration FAILED" );
             NSLog( @"ERROR: %@ - %@", error.localizedFailureReason, error.localizedDescription );
             NSLog( @"SUGGESTIONS: %@ - %@", error.localizedRecoveryOptions, error.localizedRecoverySuggestion );  
         }  
     }];  
   }
  return YES;
}

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