iOS Swift PerformSegueWithIdentifier 用于发送数据

Question

我想将数据发送到我的适配器 View ，它应该在其中放置正确的数据。我通过“exerciseName”变量发送数据。在打印中它是正确的，但当它到达目的地时，第二个 View 它变成零。请帮忙

var workoutInfoData : WorkoutInfo!
var RoundLabels = ["Round 1","Round 2","Round 3","Round 4","Round 5","Round 6","Round 7","Round 8","Round 9","Round 10","Round 11","Round 12"]
var exerciseName:String = ""

var roundPosition = [Int]()
let numberOfExercises = 1
var scrollerSize = 0

override func viewDidLoad() {
    super.viewDidLoad()

    //self.workoutTitle.title! = workoutInfoData.workout_name

    navigationItem.title = workoutInfoData.workout_name

}

override func didReceiveMemoryWarning() {
    super.didReceiveMemoryWarning()
    // Dispose of any resources that can be recreated.
}

@IBAction func workoutBack(sender: AnyObject) {
 self.dismissViewControllerAnimated(true, completion: {});
}

func numberOfSectionsInTableView(tableView: UITableView) -> Int {
    // #warning Potentially incomplete method implementation.
    // Return the number of sections.
    return 1
}

func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
    // #warning Incomplete method implementation.
    // Return the number of rows in the section.
    return RoundLabels.count

}


func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell
{
    var cell : RoundWorkoutCell! = tableView.dequeueReusableCellWithIdentifier("Cell") as! RoundWorkoutCell
    if(cell == nil)
    {
        cell = NSBundle.mainBundle().loadNibNamed("Cell", owner: self, options: nil)[0] as! RoundWorkoutCell;
    }
    let exerviseName = RoundLabels[indexPath.row]

    if(indexPath.row == 1){
    }


    for countMe in 0..<self.numberOfExercises {
        if(countMe<1){
            roundPosition.append(5)
        }else{
            roundPosition.append(115+roundPosition[countMe-1])
        }
        scrollerSize = 115+roundPosition[countMe]
    }

    cell.RoundExercise_Cell_ScrollView.contentSize = CGSizeMake(CGFloat(scrollerSize),115)
    cell.RoundExercise_Cell_ScrollView.showsHorizontalScrollIndicator = true
    cell.RoundExercise_Cell_ScrollView.indicatorStyle = .Default


    for index in 0..<self.numberOfExercises {
        var imageView : UIImageView
        imageView  = UIImageView(frame:CGRect(x:roundPosition[index],y: 5, width:110, height: 110 ))
        imageView.backgroundColor = UIColor.whiteColor()
        cell.RoundExercise_Cell_ScrollView.addSubview(imageView)

        let label1: UILabel = UILabel()
        label1.frame = CGRect(x:roundPosition[index],y: 5, width:110, height: 20 )
        label1.textColor = UIColor(red:17/255.0, green: 22/255.0, blue: 40/255.0, alpha:1.0)
        label1.textAlignment = NSTextAlignment.Center
        label1.font = UIFont(name: "OpenSans-CondensedLight", size: 14)
        label1.text = "Pushups"
        cell.RoundExercise_Cell_ScrollView.addSubview(label1)

        let frame1 = CGRect(x:roundPosition[index]+10,y:25, width:90, height: 90 )
        let button = UIButton(frame: frame1)
        button.backgroundColor = UIColor.redColor()
        button.setBackgroundImage(UIImage(named: "sit_thrust") as UIImage?, forState: .Normal)
        button.setTitleColor(UIColor.blackColor(), forState: .Normal)
        button.setTitle("air_sit_front_raise", forState: .Normal)
        button.setTitleColor(UIColor(red:0/255,green:0/255,blue:0/255,alpha:0.0), forState: .Normal)
        button.addTarget(self, action: "buttonClick:", forControlEvents: .TouchUpInside)
        cell.RoundExercise_Cell_ScrollView.addSubview(button)

        let label: UILabel = UILabel()
        label.frame = CGRect(x:roundPosition[index],y: 115, width:110, height: 20 )
        label.font = UIFont(name: "OpenSans", size: 14)
        label.textColor = UIColor.whiteColor()
        label.textAlignment = NSTextAlignment.Center
        label.text = "30sec"
        cell.RoundExercise_Cell_ScrollView.addSubview(label)

    }



    cell.RoundExercise_Cell_Label.text = exerviseName

    return cell as RoundWorkoutCell
}

func buttonClick(sender:AnyObject){
    exerciseName = String(sender.currentTitle)
    //print(sender.currentTitle)
    self.performSegueWithIdentifier("showExercise", sender:exerciseName)
}

override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
    if segue.identifier == "showExercise" {
        let vc = segue.destinationViewController as! ViewExerciseFromMenu
        //vc.exerciseGet = UIImage(named: "sit_thrust")!
        //vc.title = "SIT THRUSTS"
        print(exerciseName)
        vc.exerciseGet = exerciseName

        navigationItem.title = "easy"
    }
}

适配器 View

 @IBOutlet var imageView: UIImageView!
@IBOutlet var musInvImageHolder: UIImageView!

var exerciseGet: String = ""

var image = UIImage()

override func viewDidLoad() {
    super.viewDidLoad()
    // Do any additional setup after loading the view.
    //var exerciseCurrent: String
    print(exerciseGet)
    switch(String(exerciseGet)){
    case "air_sit_front_raise":
        self.title = "AIR SIT FRONT RAISE"
        musInvImageHolder.image = UIImage(named: "mus_inv_20")
        let url = NSBundle.mainBundle().URLForResource("air_sit_front_raise", withExtension: "gif")!
        let imageData = NSData(contentsOfURL: url)
        imageView.image =  UIImage.animatedImageWithData(imageData!)
        break;

Answer 1

这里是解决办法

@IBOutlet var roundExercisesTable: UITableView!
var workoutInfoData : WorkoutInfo!
var RoundLabels = ["Round 1","Round 2","Round 3","Round 4","Round 5","Round 6","Round 7","Round 8","Round 9","Round 10","Round 11","Round 12"]
var exerciseName:String? = ""
var myButtons: [Int : UIButton] = [:]
var roundPosition = [Int]()
let numberOfExercises = 1
var scrollerSize = 0


let exerciseInfo=ExercisesInfo()
    override func viewDidLoad()



{
        super.viewDidLoad()

    //self.workoutTitle.title! = workoutInfoData.workout_name

    navigationItem.title = workoutInfoData.workout_name

}

override func didReceiveMemoryWarning() {
    super.didReceiveMemoryWarning()
    // Dispose of any resources that can be recreated.
}

@IBAction func workoutBack(sender: AnyObject) {
    self.dismissViewControllerAnimated(true, completion: {});
}

func numberOfSectionsInTableView(tableView: UITableView) -> Int {
    // #warning Potentially incomplete method implementation.
    // Return the number of sections.
    return 1
}

func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
    // #warning Incomplete method implementation.
    // Return the number of rows in the section.
    return RoundLabels.count

}


func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell
{
    var cell : RoundWorkoutCell! = tableView.dequeueReusableCellWithIdentifier("Cell") as! RoundWorkoutCell
    if(cell == nil)
    {
        cell = NSBundle.mainBundle().loadNibNamed("Cell", owner: self, options: nil)[0] as! RoundWorkoutCell;
    }
    let exerviseName = RoundLabels[indexPath.row]

    if(indexPath.row == 1){
    }


    for countMe in 0..<self.numberOfExercises {
        if(countMe<1){
            roundPosition.append(5)
        }else{
            roundPosition.append(115+roundPosition[countMe-1])
        }
        scrollerSize = 115+roundPosition[countMe]
    }

    cell.RoundExercise_Cell_ScrollView.contentSize = CGSizeMake(CGFloat(scrollerSize),115)
    cell.RoundExercise_Cell_ScrollView.showsHorizontalScrollIndicator = true
    cell.RoundExercise_Cell_ScrollView.indicatorStyle = .Default


    for index in 0..<self.numberOfExercises {
        var imageView : UIImageView
        imageView  = UIImageView(frame:CGRect(x:roundPosition[index],y: 5, width:110, height: 110 ))
        imageView.backgroundColor = UIColor.whiteColor()
        cell.RoundExercise_Cell_ScrollView.addSubview(imageView)

        let label1: UILabel = UILabel()
        label1.frame = CGRect(x:roundPosition[index],y: 5, width:110, height: 20 )
        label1.textColor = UIColor(red:17/255.0, green: 22/255.0, blue: 40/255.0, alpha:1.0)
        label1.textAlignment = NSTextAlignment.Center
        label1.font = UIFont(name: "OpenSans-CondensedLight", size: 14)
        label1.text = "Pushups"
        cell.RoundExercise_Cell_ScrollView.addSubview(label1)

        let frame1 = CGRect(x:roundPosition[index]+10,y:25, width:90, height: 90 )
        let button = UIButton(frame: frame1)
        button.backgroundColor = UIColor.redColor()
        button.setBackgroundImage(UIImage(named: "sit_thrust") as UIImage?, forState: .Normal)
        button.setTitleColor(UIColor.blackColor(), forState: .Normal)
        button.setTitle("air_sit_front_raise", forState: .Normal)
        button.setTitleColor(UIColor(red:0/255,green:0/255,blue:0/255,alpha:0.0), forState: .Normal)
        button.addTarget(self, action: "buttonClick:", forControlEvents: .TouchUpInside)
        cell.RoundExercise_Cell_ScrollView.addSubview(button)

        let label: UILabel = UILabel()
        label.frame = CGRect(x:roundPosition[index],y: 115, width:110, height: 20 )
        label.font = UIFont(name: "OpenSans", size: 14)
        label.textColor = UIColor.whiteColor()
        label.textAlignment = NSTextAlignment.Center
        label.text = "30sec"
        cell.RoundExercise_Cell_ScrollView.addSubview(label)

    }



    cell.RoundExercise_Cell_Label.text = exerviseName

    return cell as RoundWorkoutCell
}

func buttonClick(sender:AnyObject){
    exerciseName = sender.currentTitle
    //print(sender.currentTitle)
    self.performSegueWithIdentifier("showExercise", sender:exerciseName)
}

override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
    if segue.identifier == "showExercise" {
        let vc = segue.destinationViewController as! ViewExerciseFromMenu
        //vc.exerciseGet = UIImage(named: "sit_thrust")!
        //vc.title = "SIT THRUSTS"
        print(exerciseName)
        vc.exerciseGet = exerciseName!
        navigationItem.title = exerciseInfo.hradnesExerciseDeterminer(exerciseName!)
    }
}