为什么核心触觉游戏不玩？ CHHapticPatternPlayer

如何解决为什么核心触觉游戏不玩？ CHHapticPatternPlayer

在物理设备（iPhone XR）上测试以下代码时，我没有触觉输出。我关注了Apple Developer的“ Playing a Single-tap Haptic Pattern”一文，并仔细检查了互联网上的其他各种文章，并且相信我已经正确实现了。此外，运行时不会捕获任何错误。我的设备未输出触觉模式的原因可能是什么？

注意事项：

1. 我可以确认我的手机确实会为其他应用程序产生触觉，因此这似乎与我的物理设备无关。
2. 我还单独实现了AVAudioPlayer；我怀疑这会不会干扰我，但我想我只是为了以防万一。

任何帮助将不胜感激-谢谢！

var hapticEngine: CHHapticEngine!
var hapticPlayer: CHHapticPatternPlayer!

override func viewDidLoad() {
        super.viewDidLoad()
        
        // Create and configure a haptic engine.
        do {
            hapticEngine = try CHHapticEngine()
        } catch let error {
            fatalError("Engine Creation Error: \(error)")
        }
        
        // The reset handler provides an opportunity to restart the engine.
        hapticEngine.resetHandler = {

            print("Reset Handler: Restarting the engine.")

            do {
                // Try restarting the engine.
                try self.hapticEngine.start()

                // Register any custom resources you had registered,using registeraudioResource.
                // Recreate all haptic pattern players you had created,using createPlayer.

            } catch let error {
                fatalError("Failed to restart the engine: \(error.localizedDescription)")
            }
        }
        
        // The stopped handler alerts engine stoppage.
        hapticEngine.stoppedHandler = { reason in
            print("Stop Handler: The engine stopped for reason: \(reason.rawValue)")
            switch reason {
            case .audioSessionInterrupt: print("Audio session interrupt")
            case .applicationSuspended: print("Application suspended")
            case .idleTimeout: print("Idle timeout")
            case .systemError: print("System error")
            @unkNown default:
                print("UnkNown error")
            }
        }
        
        // Create haptic dictionary
        let hapticDict = [
            CHHapticPattern.Key.pattern: [
                [
                    CHHapticPattern.Key.event: [
                        CHHapticPattern.Key.eventType: CHHapticEvent.EventType.hapticTransient,CHHapticPattern.Key.time: 0.001,CHHapticPattern.Key.eventDuration: 1.0
                    ]
                ]
            ]
        ]
        
        // Create haptic pattern from haptic dictionary,then add it to the haptic player
        do {
            let pattern = try CHHapticPattern(dictionary: hapticDict)
            hapticPlayer = try hapticEngine.makePlayer(with: pattern)
        } catch let error {
            print("Failed to create hapticPlayer: \(error.localizedDescription)")
        }

        // ...
}

// ...

func playHaptic() {
        //audioPlayer?.play()

        // Start Haptic Engine
        do {
            try hapticEngine.start()
        } catch let error {
            print("Haptic Engine Could not start: \(error.localizedDescription)")
        }
        
        // Start Haptic Player
        do {
            try hapticPlayer.start(atTime: 0.0)
            print("Why")
        } catch let error {
            print("Haptic Player Could not start: \(error.localizedDescription)")
        }
        
        // Stop Haptic Engine
        hapticEngine.stop(completionHandler: nil)
}

解决方法

问题是这一行：

hapticEngine.stop(completionHandler: nil)

删除它，一切都会好起来。您正在尝试开始的那一刻就停止了“声音”。那没有多大意义。

（当然，我还假设某个地方有实际调用您的playHaptic方法的代码。您没有显示该代码，但我只是猜测您可能记得其中包含一些代码。确定会发生这种情况，我在注释stop行的情况下运行了您的代码，我确实感到并听到了自来水龙头的“爆裂声”。）