在Swift中显示/隐藏图像 [英] Show / Hide Image in Swift

问题描述

如何通过点击按钮在Swift中显示或隐藏图像? 例如:

how to show or hide a image in Swift by taping on a Button? For example:

我有ImageA和ImageB，还有一个按钮，我想用它来将ImageA移至ImageB并移回ImageA，依此类推.

i have ImageA and ImageB and one Button which i want to use to move ImageA to ImageB and back to ImageA and so on..

从ImageA移至ImageB效果很好，但是我如何才能移回ImageA?

It works perfect to move from ImageA to ImageB, but how can i move back to ImageA?

我的代码是:

import UIKit

class ViewController: UIViewController {

@IBOutlet weak var Bild1: UIImageView!
@IBOutlet weak var Bild2: UIImageView!

@IBAction func pressedButton(sender: AnyObject) {

    Bild1.hidden = true
    Bild2.hidden = false
}


override func viewDidLoad() {
    super.viewDidLoad()

    Bild1.hidden = false
    Bild2.hidden = true

    // Do any additional setup after loading the view, typically from a nib.
}

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


}

推荐答案

@IBAction func pressedButton(sender: AnyObject) 
{
    if Bild2.tag == 0
    {
        Bild1.hidden = true
        Bild2.hidden = false
        Bild2.tag=1
    }
    else 
    {
        Bild1.hidden = false
        Bild2.hidden = true
        Bild2.tag=0
    }
}


override func viewDidLoad()
{
    super.viewDidLoad()

    Bild1.hidden = false
    Bild2.hidden = true
    Bild2.tag=0
// Do any additional setup after loading the view, typically from a nib.
}

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