Enum模式无法匹配非enum类型“TabataStates”的值(Obj-C到Swift转换)

Question

我正试图将一个较旧的Objective项目转换为Swift，以便在我计划发布的应用程序中使用，但我无法克服这个小问题。我有各种各样的Obj-c文件，我的"TimeViewController正在从中提取“，这就是我所看到的：

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“(TabataStates)中，我有我想要转换的东西，它显示了错误"Enum模式不能匹配非enum类型‘TabataStates’的值”：

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)

}

我不知道我到底做错了什么，我试图重复使用一些Obj-C库的，所以我会感谢任何输入，因为我没有太多的知识有关开关的情况。

Answer 1

您需要使用NS_ENUM宏来定义枚举，这样它们就可以在Swift中使用。下面是应该如何更改您的枚举：

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

很抱歉出现了一个奇怪的命名，这只是为了保持它与您当前代码的兼容性。