【发布时间】:2015-01-28 08:21:26
【问题描述】:
所以,我使用 Swift 创建了一个 UIButton,并使用以下代码对其进行了动画处理,它是超级视图:
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
//create a UIView to contain buttons. Set background color to nil, so it's transparent.
var controlsView = UIView(frame: CGRect(x:0, y:0, width:400, height:400));
controlsView.alpha = 1.0
controlsView.backgroundColor = nil
//create a button and add some attributes. Self explanatory
var loginButton: UIButton = UIButton.buttonWithType(UIButtonType.Custom) as UIButton
loginButton.frame = CGRectMake(20.0, 40.0, 200, 60)
loginButton.alpha = 0.0
loginButton.setTitle("Login", forState: .Normal)
loginButton.titleColorForState(.Normal)
loginButton.layer.cornerRadius = 20;
loginButton.layer.borderWidth = 1.0
loginButton.layer.borderColor = CGColorCreate(CGColorSpaceCreateDeviceRGB(), [0.827, 0.325, 0.0, 1.0])
loginButton.addTarget(self, action: "loginPressed:", forControlEvents: .TouchUpInside)
//add the button to the view created to hold it
controlsView.addSubview(loginButton)
//now test blurring the background view. Create a UIVisualEffectView to create the blur effect. New in iOS7/8
/*
var visualEffectView = UIVisualEffectView(effect: UIBlurEffect(style: .Light)) as UIVisualEffectView
visualEffectView.frame = self.introImage.bounds
self.introImage.addSubview(visualEffectView)
visualEffectView.alpha = 0.0
*/
//add the controls subview to the image view already here.
self.introImage.addSubview(controlsView)
//loginButton.addTarget(self, action: "loginButtonWasPressed:",forControlEvents:.TouchUpInside)
UIView.animateWithDuration(0.7,
animations: {
loginButton.alpha = 1.0
loginButton.frame = CGRect(x: 20.0, y: 100.0, width: 200, height: 60)
//visualEffectView.alpha = 0.5
},
completion:nil)
}
这很好。然后我创建了一个函数,应该在上面创建的按钮的 touchUpInside 上调用它:
@IBAction func loginPressed(sender:UIButton){
var alertView = UIAlertView();
alertView.addButtonWithTitle("Ok");
alertView.title = "title";
alertView.message = "message";
alertView.show();
}
当我触摸按钮时,该功能不会触发。任何人都可以帮忙吗?我正在实际设备上进行测试(iPhone 6 Plus/iOS 8.1.1
【问题讨论】:
-
您是否为您的
introImage设置了userInteractionEnabled = true? -
不,我最初没有。我已经尝试过你的建议,它似乎奏效了,@Swipesight。感谢您的帮助!
-
将 userInteractionEnabled 设置为 true 对我有用!
-
请在此处查看我的答案stackoverflow.com/a/37706494/1416824
标签: ios iphone swift uibutton addtarget