注册解析通知 iOS7 和 iOS8，编译器警告

Question

我已经对我的应用程序进行了编码，以便在iOS8中接收Parse通知，最近发现这些通知在iOS中不起作用，因此不得不在AppDelegate.m中将我的代码更改为以下内容：

viewDidLoad：

if ([application respondsToSelector:@selector(registerUserNotificationSettings:)]) {
        NSLog(@"Requesting permission for push notifications...iOS8"); // iOS 8
        UIUserNotificationType userNotificationTypes = (UIUserNotificationTypeAlert |
                                                        UIUserNotificationTypeBadge |
                                                        UIUserNotificationTypeSound);
        UIUserNotificationSettings *settings = [UIUserNotificationSettings settingsForTypes:userNotificationTypes categories:nil];
        [application registerUserNotificationSettings:settings];
        [application registerForRemoteNotifications];
    } else {
        NSLog(@"Registering device for push notifications..."); // iOS 7 and earlier
        [UIApplication.sharedApplication registerForRemoteNotificationTypes:
         UIRemoteNotificationTypeAlert | UIRemoteNotificationTypeBadge |
         UIRemoteNotificationTypeSound];
    }

和：

- (void)application:(UIApplication *)application
didRegisterForRemoteNotificationsWithDeviceToken:(NSData *)deviceToken {
    // Store the deviceToken in the current Installation and save it to Parse.
    PFInstallation *currentInstallation = [PFInstallation currentInstallation];
    [currentInstallation setDeviceTokenFromData:deviceToken];
    [currentInstallation saveInBackground];
}

我在两个版本的iOS上都进行了测试，它似乎工作正常。但是，如果我将 Xcode 中的部署目标更改为 iOS8 或更高版本，我会收到以下编译器警告：

AppDelegate.m:62:10: 'UIRemoteNotificationTypeAlert' is deprecated: first deprecated in iOS 8.0 - Use UIUserNotificationType for user notifications and registerForRemoteNotifications for receiving remote notifications instead.
AppDelegate.m:62:42: 'UIRemoteNotificationTypeBadge' is deprecated: first deprecated in iOS 8.0 - Use UIUserNotificationType for user notifications and registerForRemoteNotifications for receiving remote notifications instead.
AppDelegate.m:63:10: 'UIRemoteNotificationTypeSound' is deprecated: first deprecated in iOS 8.0 - Use UIUserNotificationType for user notifications and registerForRemoteNotifications for receiving remote notifications instead.
/AppDelegate.m:61:42: 'registerForRemoteNotificationTypes:' is deprecated: first deprecated in iOS 8.0 - Please use registerForRemoteNotifications and registerUserNotificationSettings: instead

看到这些警告是否正常，仅仅是因为我正在处理更高的部署目标？还是我必须在某处更改代码？我必须看到这些警告似乎很奇怪。任何指示将不胜感激。谢谢！

Answer 1

如果您将部署目标更改为 iOS 8，则无需检查 iOS 8（在 iOS 8 之前，因为您的应用程序只能在 iOS 8 设备中运行），这就是它为您提供这些警告的原因。所以只需像这样注册：

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

Answer 2

是的

，该方法在 iOS8 中已弃用，但您可以通过以下代码行检查 iOS7 和 iOS8 上的条件以管理弃用：

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)];
}

除此之外，还要在其下方添加这些代码行。

if ([launchOptions valueForKey:@"UIApplicationLaunchOptionsRemoteNotificationKey"]) {
    [self application:application didReceiveRemoteNotification:launchOptions[UIApplicationLaunchOptionsRemoteNotificationKey]];
}

并在 parse.com 上注册设备，请检查您的应用程序密钥和客户端密钥是否正确，除了注册设备的代码块是否正确，但它根本不会影响iOS的弃用。