枚举大小写模式无法匹配非枚举类型 'TabataStates' 的值（Obj-C 到 Swift 的转换）

Question

我正在尝试将一个较旧的 Objective C 项目转换为 Swift 以便在我计划发布的应用程序中使用，但我无法解决这个小问题。我有各种 Obj-c 文件，我的“TimeViewController 从中提取，这就是我正在查看的内容：

typedef enum {
IDLE,
STARTING,
EXERCISE,
RELAXATION
} TabataStates;

和

// Actions

- (TabataStates)getState;

和

- (void)update {
switch (tabataState) {
    case IDLE:
        currentRound = 0;
        currentTime = startingDuration;
        [tabata setState:STARTING];
        break;
    case STARTING:
        currentTime -= UPDATE_INTERVAL;
        if ((currentTime > 0.9 && currentTime < 1.1) || (currentTime > 1.9 && currentTime < 2.1)) {
            [[NSNotificationCenter defaultCenter] postNotificationName:PrepareSignal object:self];
        }
        if (currentTime <= 0) {
            currentTime = exerciseDuration;
            ++currentRound;
            [tabata setState:EXERCISE];
        }
        break;
    case EXERCISE:
        currentTime -= UPDATE_INTERVAL;
        if (currentTime <= 0) {
            if (currentRound >= roundAmount) {
                [self stop];
            }
            else {
                currentTime = relaxationDuration;
                [tabata setState:RELAXATION];
            }
        }
        break;
    case RELAXATION:
        currentTime -= UPDATE_INTERVAL;
        if (currentTime <= 0) {
            currentTime = exerciseDuration;
            ++currentRound;
            [tabata setState:EXERCISE];
        }
        break;
    default:
        break;
}
[[NSNotificationCenter defaultCenter] postNotificationName:TimerUpdated object:self];
}

和

- (void)tabataStateChanged:(NSNotification *)notification {
switch ([tabata getState]) {
    case STARTING:
        self.timerLabel.textColor = [theme getColorFor:THEME_TIMER_INACTIVE];
        break;
    case EXERCISE:
        self.timerLabel.textColor = [theme getColorFor:THEME_TIMER_EXERCISE];
        break;
    case RELAXATION:
        self.timerLabel.textColor = [theme getColorFor:THEME_TIMER_RELAXATION];
        break;
    default:
        self.timerLabel.textColor = [theme getColorFor:THEME_TIMER_INACTIVE];
        break;
}
[self showRound];
[self tabataTimerUpdated:notification];
}

在我的 "TimeViewController" (swift) 中，我有我要转换成的内容，它向我显示错误 "Enum case pattern cannot match values of the non-enum type 'TabataStates'":

func tabataStateChanged(NSNotification) {
    switch tabata.getState() {

    case .STARTING: //error here
        self.timerLabel.textColor = theme.getColorFor(THEME_TIMER_INACTIVE)
        break
    case .EXERCISE: //error here
        self.timerLabel.textColor = theme.getColorFor(THEME_TIMER_EXERCISE)
        break
     case .RELAXATION:  //error here
        self.timerLabel.textColor = theme.getColorFor(THEME_TIMER_RELAXATION)
        break
    default:
        self.timerLabel.textColor = theme.getColorFor(THEME_TIMER_INACTIVE)
        break
    }

    self.showRound()
    self.tabataTimerUpdated(NSNotification)

}

我不确定我在尝试重新使用某些 Obj-C 库时到底做错了什么，所以我将不胜感激任何输入，因为我对 switch cases 没有太多的了解。

Answer 1

您需要使用 NS_ENUM 宏来定义您的枚举，因此它们将在 Swift 中可用。这是枚举的更改方式：

typedef NS_ENUM(NSInteger, TabataStates) {
   TabataStatesIDLE
   TabataStatesSTARTING,
   TabataStatesEXERCISe,
   TabataStatesRELAXATION
};

对不起，一个奇怪的命名，这只是为了保持它与您当前的代码兼容。

枚举大小写模式无法匹配非枚举类型 'TabataStates' 的值（Obj-C 到 Swift 的转换）

Enum case pattern cannot match values of the non-enum type 'TabataStates' (Obj-C to Swift Conversion)

enums

objective-c

swift

xcode6

ios8