嘿,我的应用程序几乎可以发布了,但是我想添加一个Facebook分享按钮。事情是我不知道场景和ViewController之间的通信是如何工作的。我做了我的研究,但只在obj- c中找到了像这样的代码
- (void)lkFaceBookShare { NSString *serviceType = SLServiceTypeFacebook; if (![SLComposeViewController isAvailableForServiceType:serviceType]) { [self showUnavailableAlertForServiceType:serviceType]; } else { SLComposeViewController *composeViewController = [SLComposeViewController composeViewControllerForServiceType:serviceType]; UIWindow *keyWindow = [[UIApplication sharedApplication] keyWindow]; CGRect rect = [keyWindow bounds]; UIGraphicsBeginImageContextWithOptions(self.view.bounds.size, NO, 0.5f); [self.view drawViewHierarchyInRect:rect afterScreenUpdates:YES]; UIImage *viewImage = UIGraphicsGetImageFromCurrentImageContext(); UIGraphicsEndImageContext(); [composeViewController addImage:viewImage]; NSString *initalTextString = [NSString stringWithFormat:@"Let's join together in the form of underground catch word go along with me!! Link: https://itunes.apple.com/us/app/uoi-hinh-bat-chu-gioi-duoi/id907330926?ls=1&mt=8"]; [composeViewController setInitialText:initalTextString]; UIViewController *vc = self.view.window.rootViewController; [vc presentViewController:composeViewController animated:YES completion:nil]; } } - (void)showUnavailableAlertForServiceType:(NSString *)serviceType { NSString *serviceName = @""; if (serviceType == SLServiceTypeFacebook) { serviceName = @"Facebook"; } else if (serviceType == SLServiceTypeSinaWeibo) { serviceName = @"Sina Weibo"; } else if (serviceType == SLServiceTypeTwitter) { serviceName = @"Twitter"; } UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:@"Account" message:[NSString stringWithFormat:@"Please go to the device settings and add a %@ account in order to share through that service", serviceName] delegate:nil cancelButtonTitle:@"Dismiss" otherButtonTitles:nil]; [alertView show]; }
我的经验和知识不足,无法迅速移植,因此我需要与此D相关的帮助:
谢谢
这是我不久前为twitter做的一些代码,现在仍然可以迅速使用。我在下面向您展示如何将其转换为Facebook。把它放在你的viewController中:
func showTweetSheet() { let tweetSheet = SLComposeViewController(forServiceType: SLServiceTypeTwitter) tweetSheet.completionHandler = { result in switch result { case SLComposeViewControllerResult.Cancelled: //Add code to deal with it being cancelled break case SLComposeViewControllerResult.Done: //Add code here to deal with it being completed //Remember that dimissing the view is done for you, and sending the tweet to social media is automatic too. You could use this to give in game rewards? break } } tweetSheet.setInitialText("Test Twitter") //The default text in the tweet tweetSheet.addImage(UIImage(named: "TestImage.png")) //Add an image if you like? tweetSheet.addURL(NSURL(string: "http://twitter.com")) //A url which takes you into safari if tapped on self.presentViewController(tweetSheet, animated: false, completion: { //Optional completion statement }) }
将其转换为Facebook的,只是换SLServiceTypeTwitter到SLServiceTypeFacebook并重命名变量可读性。如果要从SKScene调用此方法,则必须以某种方式提醒viewController要其调用方法。
SLServiceTypeTwitter
SLServiceTypeFacebook
我的首选方法是使用NSNotificationCenter,以便我从场景中发布警报,并由viewController接收,从而触发一个方法。这也非常容易设置。在场景中,您需要将以下代码行放在要调用Facebook弹出窗口的位置:
NSNotificationCenter.defaultCenter().postNotificationName("WhateverYouWantToCallTheNotification", object: nil)
这会发出带有名称的通知。现在,在viewController中,您需要通过将以下代码放入viewDidLoad,viewDidAppear或类似内容中来订阅此警报。
NSNotificationCenter.defaultCenter().addObserver(self, selector: "ThisIsTheMethodName", name: "WhateverYouCalledTheAlertInTheOtherLineOfCode", object: nil)
现在,场景将与viewController通信,您将能够显示Facebook工作表。请记住用与您的项目相关的字符串替换我的字符串。希望这会有所帮助- 很抱歉,回答这么长!