我有一个横向运行的游戏,我也试图以纵向模式发送电子邮件。
基本上
GameViewController
= .Landscape
; MailViewController
= .AllButUpsideDown
。我在下面构建了这段代码,但我遇到了问题:
您可以下载此代码here。
GameScene
import SpriteKit
class GameScene: SKScene {
override func touchesBegan(touches: Set<UITouch>, withEvent event: UIEvent?) {
/* Called when a touch begins */
//Mail
NSNotificationCenter.defaultCenter().postNotificationName("openMail", object: nil)
}
}
GameViewController
import UIKit
import SpriteKit
class GameViewController: UIViewController {
override func viewDidLoad() {
super.viewDidLoad()
// Set view size.
let scene = GameScene(size: view.bounds.size)
// Configure the view.
let skView = view as! SKView
skView.showsFPS = true
skView.showsNodeCount = true
/* Sprite Kit applies additional optimizations to improve rendering performance */
skView.ignoresSiblingOrder = true
/* Set the scale mode to scale to fit the window */
scene.scaleMode = .ResizeFill
skView.presentScene(scene)
}
override func supportedInterfaceOrientations() -> UIInterfaceOrientationMask {
if UIDevice.currentDevice().userInterfaceIdiom == .Phone {
return .Landscape
} else {
return .Landscape
}
}
}
MailViewController
import UIKit
import SpriteKit
import MessageUI
class MailViewController: UIViewController {
override func viewDidLoad() {
super.viewDidLoad()
//Register mail observer (so I can call from GameScene)
NSNotificationCenter.defaultCenter().addObserver(self, selector: #selector(MailViewController.openMailController), name: "openMail", object: nil)
}
override func supportedInterfaceOrientations() -> UIInterfaceOrientationMask {
if UIDevice.currentDevice().userInterfaceIdiom == .Phone {
return .AllButUpsideDown
} else {
return .All
}
}
}
//Mail
extension MailViewController: MFMailComposeViewControllerDelegate {
func openMailController() {
let mailComposerVC = MFMailComposeViewController()
mailComposerVC.mailComposeDelegate = self //extremely important to set the mailComposeDelegate property, not the delegate property
self.presentViewController(mailComposerVC, animated: true, completion: nil)
}
func mailComposeController(controller: MFMailComposeViewController, didFinishWithResult result: MFMailComposeResult, error: NSError?) {
self.dismissViewControllerAnimated(true, completion: nil)
}
}
谢谢你的帮助,
路易斯。
答案 0 :(得分:2)
您提供的代码问题是MailViewController类视图中的观察者没有调用load方法。因此Observer未设置为接收任何通知。
你也没有在你的代码中的任何地方调用segue来调用MailViewController。
解决方案:使用委托方法
GameScene课程已更新:
import SpriteKit
// Protocol
protocol gameSceneDelegate {
func openMail()
}
// Protocol
class GameScene: SKScene {
// Delegate
var sceneDelegate : gameSceneDelegate?
override func touchesBegan(touches: Set<UITouch>, withEvent event: UIEvent?) {
/* Called when a touch begins */
//Mail
// NSNotificationCenter.defaultCenter().postNotificationName("openMail", object: nil)
// delegate method called on receiving touches
self.sceneDelegate?.openMail()
}
}
GameViewController类已更新:
import UIKit
import SpriteKit
class GameViewController: UIViewController {
override func viewDidLoad() {
super.viewDidLoad()
// Set view size.
let scene = GameScene(size: view.bounds.size)
// Delegate Confirmation
scene.sceneDelegate = self
// Configure the view.
let skView = view as! SKView
skView.showsFPS = true
skView.showsNodeCount = true
/* Sprite Kit applies additional optimizations to improve rendering performance */
skView.ignoresSiblingOrder = true
/* Set the scale mode to scale to fit the window */
scene.scaleMode = .ResizeFill
skView.presentScene(scene)
}
override func supportedInterfaceOrientations() -> UIInterfaceOrientationMask {
if UIDevice.currentDevice().userInterfaceIdiom == .Phone {
return .Landscape
} else {
return .Landscape
}
}
}
// Delegate Method Implementation
extension GameViewController : gameSceneDelegate{
func openMail(){
self.performSegueWithIdentifier("openMail", sender: self);
}
}
邮件视图控制器:
import UIKit
import SpriteKit
import MessageUI
class MailViewController: UIViewController {
override func viewDidLoad() {
super.viewDidLoad()
//Register mail observer (so I can call from GameScene)
// NSNotificationCenter.defaultCenter().addObserver(self, selector: #selector(MailViewController.openMailController), name: "openMail", object: nil)
self.openMailController()
}
override func supportedInterfaceOrientations() -> UIInterfaceOrientationMask {
if UIDevice.currentDevice().userInterfaceIdiom == .Phone {
return .AllButUpsideDown
} else {
return .All
}
}
}
//Mail
extension MailViewController: MFMailComposeViewControllerDelegate {
func openMailController() {
let mailComposerVC = MFMailComposeViewController()
mailComposerVC.mailComposeDelegate = self //extremely important to set the mailComposeDelegate property, not the delegate property
self.presentViewController(mailComposerVC, animated: true, completion: nil)
}
func mailComposeController(controller: MFMailComposeViewController, didFinishWithResult result: MFMailComposeResult, error: NSError?) {
self.dismissViewControllerAnimated(true, completion: nil)
}
}
故事板中的最后一次更改:
点击segue连接GameViewController和MailViewController并将标识符更改为 - openMail或任何你想保留的内容