深度链接重定向到应用程序仅适用于iOS 9及以上的第二次尝试

>首先,猜测你错过了FBSDKApplicationDelegate应用程序的调用：openURL：sourceApplication：Annotation：来自UIApplicationDelegate的应用程序：openURL：options：
>你可能会错过这一行NSURL * url = [launchOptions objectForKey：UIApplicationLaunchOptionsURLKey];在UIApplicationDelegate的didFinishLaunchingWithOptions
>交叉检查您已按照https://developers.facebook.com/docs/ios/ios9中提到的设置
>如果设备是越狱,那么在iOS 9.0.2中会导致url方案问题.

为我工作的解决方案是下面的代码行,因为我将FB / G与我的应用程序集成在一起：

- (BOOL)application:(UIApplication *)app openURL:(NSURL *)url options:(NSDictionary<NSString*,id> *)options {
    return [[FBSDKApplicationDelegate sharedInstance] application:app
                                                          openURL:url
                                                sourceApplication:options[UIApplicationOpenURLOptionssourceApplicationKey]
                                                       Annotation:options[UIApplicationOpenURLOptionsAnnotationKey]]
            || [[GIDSignIn sharedInstance] handleURL:url
                                   sourceApplication:options[UIApplicationOpenURLOptionssourceApplicationKey]
                                          Annotation:options[UIApplicationOpenURLOptionssourceApplicationKey]];
}
- (BOOL)application:(UIApplication *)application openURL:(NSURL *)url sourceApplication:(NSString *)sourceApplication Annotation:(id)Annotation
{

        return [[FBSDKApplicationDelegate sharedInstance] application:application
                                                          openURL:url
                                                sourceApplication:sourceApplication
                                                       Annotation:Annotation
                 ] ||
                [[GIDSignIn sharedInstance] handleURL:url
                                          sourceApplication:sourceApplication
                                                 Annotation:Annotation];
   }