iOS 9不要求遠程通知權限

Question

嘗試請求遠程通知權限時遇到問題。

它可以在iOS 10上完美運行，但是當我嘗試在iOS 9設備上執行此操作時，它不會顯示任何警報，並且不會調用UIApplication委托方法“ application：didRegisterForRemoteNotificationsWithDeviceToken：”。 都不是“失敗”的方法。

我僅在真實設備上進行測試，而不在模擬器上進行測試。 我當前用於請求許可的代碼如下：

-(void)requestPushPermissions {
NSLog(@"Starting register for remote Notification");
UIUserNotificationSettings *settings = [UIUserNotificationSettings settingsForTypes: UIUserNotificationTypeAlert | UIUserNotificationTypeBadge | UIUserNotificationTypeSound categories:nil];
if ([[[UIDevice currentDevice] systemVersion] floatValue] >= 10.0) {
    [[UNUserNotificationCenter currentNotificationCenter] requestAuthorizationWithOptions:UNAuthorizationOptionAlert | UNAuthorizationOptionBadge | UNAuthorizationOptionSound completionHandler:^(BOOL granted, NSError * _Nullable error) {
        if (granted) {
            NSLog(@"Got a yes!");
        }
        else {
            NSLog(@"Got a no...");
        }
    }];
    [[UIApplication sharedApplication] registerForRemoteNotifications];
}
else {
    [[UIApplication sharedApplication] registerUserNotificationSettings:settings];
    [[UIApplication sharedApplication] registerForRemoteNotifications];
}
}

有人知道了嗎？

Answer 1

試試這個代碼

#import "AppDelegate.h"

#define SYSTEM_VERSION_GRATERTHAN_OR_EQUALTO(v)  ([[[UIDevice currentDevice] systemVersion] compare:v options:NSNumericSearch] != NSOrderedAscending)

@interface AppDelegate ()

@end

@implementation AppDelegate


- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
    // Override point for customization after application launch.

    [self registerForRemoteNotification];

    return YES;
}
    - (void)registerForRemoteNotification {
        if(SYSTEM_VERSION_GRATERTHAN_OR_EQUALTO(@"10.0")) {
            UNUserNotificationCenter *center = [UNUserNotificationCenter currentNotificationCenter];
            center.delegate = self;
            [center requestAuthorizationWithOptions:(UNAuthorizationOptionSound | UNAuthorizationOptionAlert | UNAuthorizationOptionBadge) completionHandler:^(BOOL granted, NSError * _Nullable error){
                if( !error ){
                    [[UIApplication sharedApplication] registerForRemoteNotifications];
                }
            }];
        }
        else {
            [[UIApplication sharedApplication] registerUserNotificationSettings:[UIUserNotificationSettings settingsForTypes:(UIUserNotificationTypeSound | UIUserNotificationTypeAlert | UIUserNotificationTypeBadge) categories:nil]];
            [[UIApplication sharedApplication] registerForRemoteNotifications];
        }
    }

在功能中啟用推送通知