swift – 使用WatchKit强制触摸MenuItem调用外部函数

我需要实现一个WatchKit强制触摸MenuItem来调用一个saveWorkout()方法,该方法位于一个不是WKInterfaceController子类的独立类中.

我意识到每个类至少需要一个指定的初始化程序.我猜这是关键？

顺便说一下,我的“saveSession()到达”print语句在使用sim时登录到控制台,但在我使用设备时没有.即使使用设备,所有其他打印语句也会登录到控制台.有点奇怪.

我在初始化时的尝试会抛出各种错误,例如：

1.fatal error: use of unimplemented initializer ‘init()’ for class ‘DashboardController’

2.Missing argument for parameter ‘context’ in call

Dashboard.swift

class DashboardController: WKInterfaceController {

@IBOutlet var timerLabel: WKInterfaceTimer!
@IBOutlet weak var milesLabel: WKInterfaceLabel!

// var wSM: WorkoutSessionManager

//init(wSM: WorkoutSessionManager) {
//  self.wSM = wSM
//  super.init()
//  }


override func awakeWithContext(context: AnyObject?) {
    super.awakeWithContext(context)

    addMenuItemWithItemIcon(.Accept,title: "Save",action: #selector(DashboardController.saveSession))
}

override func willActivate() {
    super.willActivate()
    print("Dashboard controller reached")
}

func saveSession() {
    //wSM.saveWorkout()
    print("saveSession() reached")    
    }

WorkoutSessionManager.swift

class WorkoutSessionContext {

let healthStore: HKHealthStore
let activityType: HKWorkoutActivityType
let locationType: HKWorkoutSessionLocationType

init(healthStore: HKHealthStore,activityType: HKWorkoutActivityType = .Other,locationType: HKWorkoutSessionLocationType = .Unknown) {

    self.healthStore = healthStore
    self.activityType = activityType
    self.locationType = locationType
}
}

protocol WorkoutSessionManagerDelegate: class {
// ... protocol methods
}

class WorkoutSessionManager: NSObject,HKWorkoutSessionDelegate {

let healthStore: HKHealthStore
let workoutSession: HKWorkoutSession

init(context: WorkoutSessionContext) {
    self.healthStore = context.healthStore
    self.workoutSession = HKWorkoutSession(activityType: context.activityType,locationType: context.locationType)
    self.currentActiveEnergyQuantity = HKQuantity(unit: self.energyUnit,doubleValue: 0.0)
    self.currentDistanceQuantity = HKQuantity(unit: self.distanceUnit,doubleValue: 0.0)

    super.init()

    self.workoutSession.delegate = self
}

func saveWorkout() {
    guard let startDate = self.workoutStartDate,endDate = self.workoutEndDate else {return}

// ...code...

@H_404_22@

override func contextForSegueWithIdentifier(segueIdentifier: String) -> AnyObject? { let activityType: HKWorkoutActivityType switch segueIdentifier { case "Running": activityType = .Running case "Walking": activityType = .Walking case "Cycling": activityType = .Cycling default: activityType = .Other } return WorkoutSessionContext(healthStore: self.healthStore,activityType: activityType) }

class DashboardController: WKInterfaceController { // ... var wSM: WorkoutSessionManager? override func awakeWithContext(context: AnyObject?) { super.awakeWithContext(context) if context is WorkoutSessionContext { wSM = WorkoutSessionManager(context: context as! WorkoutSessionContext) } addMenuItemWithItemIcon(.Accept,action: #selector(DashboardController.saveSession)) } // ... }

swift – 使用WatchKit强制触摸MenuItem调用外部函数

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