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我对 GCController 框架有疑问：

我有 2 个视图控制器，每个视图控制器都有一个按钮来加载另一个视图控制器。

第一个控制器代码：

import Cocoa
import GameController
class ViewController: NSViewController {

    @IBAction func abirVc2(_ sender: Any) {
       
        if let controller = self.storyboard?.instantiateController(withIdentifier: "ViewController2") as? ViewController2 {
            self.view.window?.contentViewController = controller
        }
    }
    override func viewDidLoad() {
        super.viewDidLoad()
        startWatchingForControllers()

        // Do any additional setup after loading the view.
    }

    override var representedObject: Any? {
        didSet {
        // Update the view, if already loaded.
        }
    }
    func startWatchingForControllers() {
        // Subscribe for the notes
        let ctr = NotificationCenter.default
        ctr.addObserver(forName: .GCControllerDidConnect, object: nil, queue: .main) { note in
            if let ctrl = note.object as? GCController {
                self.add(ctrl)
            }
        }
        ctr.addObserver(forName: .GCControllerDidDisconnect, object: nil, queue: .main) { note in
            if let ctrl = note.object as? GCController {
                self.remove(ctrl)
            }
        }
        // and kick off discovery
        GCController.startWirelessControllerDiscovery(completionHandler: {})
    }
    
    func stopWatchingForControllers() {
        GCController.stopWirelessControllerDiscovery()
        let ctr = NotificationCenter.default
        ctr.removeObserver(self, name: .GCControllerDidConnect, object: nil)
        ctr.removeObserver(self, name: .GCControllerDidDisconnect, object: nil)
    }
    
    func add(_ controller: GCController) {
        let name = String(describing:controller.vendorName)
        if let extendedGamepad = controller.extendedGamepad {
            print("connect extended \(name)")
            configureDPadButtons(extendedGamepad)
            //configureDiamondButtons(extendedGamepad)
            //configureShoulderButtons(extendedGamepad)
            //configureTriggers(extendedGamepad)
            return
        } else if let gamepad = controller.microGamepad {
            print("connect micro (name)")
        } else {
            print("Huh? (name)")
        }
    }
    private func configureDPadButtons(_ gamepad: GCExtendedGamepad) {
        
        gamepad.dpad.up.pressedChangedHandler = {(button, value, pressed) in
            
            if let controller = self.storyboard?.instantiateController(withIdentifier: "ViewController2") as? ViewController2 {
                    self.view.window?.contentViewController = controller
            }
        }
        
        gamepad.dpad.down.pressedChangedHandler = {(button, value, pressed) in
            print("ExtendedGamepad - Down")
        }
        
        gamepad.dpad.left.pressedChangedHandler = {(button, value, pressed) in
            print("ExtendedGamepad - Left")
        }
        
        gamepad.dpad.right.pressedChangedHandler = {(button, value, pressed) in
            print("ExtendedGamepad - Right")
         }
        
    }
    func remove(_ controller: GCController) {

    }

}

第二个控制器代码：

import Cocoa

class ViewController2: NSViewController {

    @IBAction func abrirHomeView(_ sender: Any) {
        if let controller = self.storyboard?.instantiateController(withIdentifier: "HomeView") as? ViewController {
            self.view.window?.contentViewController = controller
        }
    }
    override func viewDidLoad() {
        super.viewDidLoad()
        // Do view setup here.
    }
    
}

在第一个控制器上，我按下按钮加载第二个，然后按下第二个视图控制器的按钮返回到第一个。每次我按下按钮时它都会起作用。

然后我使用 GamePad 的向上箭头加载 viewController 2，它正确加载，然后我使用第二个 viewcontroller 上的按钮返回到第一个控制器，好的，它也可以，但是如果我使用 GamePad 的向上按钮来加载第二个控制器再次，它没有做任何事情......

似乎处理 GamePad 向上箭头的函数无法再次加载第二个 viewController。

我使用了一个简单的项目来进行测试，就这么简单，2 个视图控制器，每个控制器都有一个按钮......

我不知道发生了什么...

提前致谢

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0 回答 0