Question

我收到错误＆＃39; EXC_BAD_ACCESS（code = 2，address = 0x16fcbbfec）＆＃39;在我的TimeView控制器上

var soundEffects = SoundEffects()

我不知道为什么会这样......

我已经为任何愿意看看并帮助我的人提供了我的源代码链接。谢谢！

https://github.com/JohnnyH1012/HRC

相关代码

import UIKit
import AVFoundation

class SoundEffects: NSObject, AVAudioPlayerDelegate {
    var soundEffects = SoundEffects()
    var player = AVAudioPlayer()
    var storage = SettingsStorage()
    var enabled:Bool = false
    var newValue:Bool = true
    var tabata: Tabata!
    var theme: Theme!

func registerSoundEffects() {

    soundEffects = SoundEffects.new()

    NSNotificationCenter.defaultCenter().addObserver(soundEffects, selector: "stateChanged:", name: StateChanged, object: nil)
    NSNotificationCenter.defaultCenter().addObserver(soundEffects, selector: "prepareSignal:", name: PrepareSignal, object: nil)

    var error:NSError?

    var url: NSURL = NSURL(fileURLWithPath: NSBundle.mainBundle().pathForResource("beep_01", ofType: "mp3")!)!

    player = AVAudioPlayer(contentsOfURL: url, error: &error)
    player.numberOfLoops = 0
    player.prepareToPlay()
    enabled = storage.loadSoundEnabled()

}

func isEnabled() {

    return enabled = true

}

func setEnabled() {
    enabled = newValue
    storage.saveSoundEnabled(newValue)

}

func stateChanged(notification: NSNotification) {
    if enabled {

        var tabata: Tabata! = notification.object! as! Tabata
        switch tabata.getState() {
        case .EXERCISE: fallthrough
        case .RELAXATION:
            player.play()
            break

        default:
            break

        }
    }
}

func prepareSignal(notification:NSNotification) {

    if enabled {
        player.play()
    }

}

}

Answer 1

你有一个无限的递归循环。初始化SoundEffects时，它会初始化其soundEffects变量，该变量初始化SoundEffects对象，该对象初始化soundEffects var，其中......

你看到了问题吗？

Answer 2

可能与setEnabled二传手有冲突。在Swift中有属性观察者，它们在设置变量后被调用。

删除isEnabled()和setEnabled()方法使用变量enabled这样也作为getter

var enabled: Bool = false {
    didSet {
       storage.saveSoundEnabled(newValue)
    }
}

接收＆＃39; EXC_BAD_ACCESS代码= 2＆＃39;在Obj-C到Swift转换中

2 个答案: