[英]Dismissing A View with a swipe gesture - Swift 4
In my app, when a user swipes down on a view, I want the view to dismiss to a certain frame. 在我的应用程序中,当用户在视图上向下滑动时,我希望视图散布到某个框架。 This is what I have tried so far but for some reason it keeps giving me this error: 到目前为止,这是我尝试过的操作,但是由于某种原因,它一直给我这个错误:
Argument of '#selector' does not refer to an '@objc' method, property, or initializer “ #selector”的参数未引用“ @objc”方法,属性或初始化程序
This is my code down below: 这是我的代码如下:
class VideoLauncher: NSObject {
@objc func dismissView(myView: UIView) {
UIView.animate(withDuration: 0.4) {
if let theWindow = UIApplication.shared.keyWindow {
myView.frame = CGRect(x:theWindow.frame.width - 15 , y: theWindow.frame.height - 15, width: 10 , height: 10)
}
}
}
func showVideoPlayer() {
print("showing player")
if let keyWindow = UIApplication.shared.keyWindow {
let view = UIView(frame: keyWindow.frame)
view.backgroundColor = UIColor.spaceBlue
view.frame = CGRect(x: keyWindow.frame.width - 10, y: keyWindow.frame.height - 10, width: 10, height: 10)
let videoPlayerView = VideoPlayerView(frame: keyWindow.frame)
keyWindow.addSubview(view)
view.addSubview(videoPlayerView)
let slideDown = UISwipeGestureRecognizer(target: self, action: #selector(dismissView(myView: view)))
view.addGestureRecognizer(slideDown)
UIView.animate(withDuration: 0.5, delay: 0, usingSpringWithDamping: 1, initialSpringVelocity: 1, options: .curveEaseOut, animations: {
view.frame = keyWindow.frame
}, completion: { (completedAnimation) in
UIApplication.shared.isStatusBarHidden = true
})
}
}
}
You have to use like this : 您必须像这样使用:
let slideDown = UISwipeGestureRecognizer(target: self, action: #selector(dismissView(gesture:)))
slideDown.direction = .down
view.addGestureRecognizer(slideDown)
Your function : 您的职能:
@objc func dismissView(gesture: UISwipeGestureRecognizer) {
UIView.animate(withDuration: 0.4) {
if let theWindow = UIApplication.shared.keyWindow {
gesture.view?.frame = CGRect(x:theWindow.frame.width - 15 , y: theWindow.frame.height - 15, width: 10 , height: 10)
}
}
}
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