iPhone上的多个按钮-Swift
我试图在一个iPhone应用程序上设置多个按钮,只有当我第二次运行该功能时,按钮才会显示出来。它没有显示我配置它运行的两个按钮iPhone上的多个按钮-Swift,swift,uibutton,Swift,Uibutton,我试图在一个iPhone应用程序上设置多个按钮,只有当我第二次运行该功能时,按钮才会显示出来。它没有显示我配置它运行的两个按钮 class ViewController: UIViewController { let button = UIButton.buttonWithType(UIButtonType.System) as UIButton let screensize: CGRect = UIScreen.mainScreen().bounds overrid
class ViewController: UIViewController {
let button = UIButton.buttonWithType(UIButtonType.System) as UIButton
let screensize: CGRect = UIScreen.mainScreen().bounds
override func viewDidLoad() {
super.viewDidLoad()
println(screensize.size.height)
blur()
// add iphone 2 buttons
let rect : CGRect = CGRectMake(100, 50, 200, 50)
var rectObj = NSValue(CGRect: rect)
showButton("Hello", rect: rectObj, redvalue: 1.0, greenvalue: 0.5, bluevalue: 0.5, alphavalue: 1.0)
let rect1 : CGRect = CGRectMake(20, 50, 200, 50)
var rectObj1 = NSValue(CGRect: rect)
showButton("Good bye", rect: rectObj1, redvalue: 0.5, greenvalue: 0.5, bluevalue: 0.5, alphavalue: 1.0)
}
func showButton(title: String, rect: NSValue, redvalue : CGFloat, greenvalue: CGFloat, bluevalue: CGFloat, alphavalue : CGFloat)
{
var rectRestored : CGRect = rect.CGRectValue()
button.frame = CGRectMake(rectRestored.origin.x, rectRestored.origin.y, rectRestored.width, rectRestored.height)
button.backgroundColor = UIColor(red: redvalue , green: greenvalue, blue: bluevalue, alpha: alphavalue)
button.setTitle(title, forState: UIControlState.Normal)
self.view.addSubview(button)
}
func blur()
{
var blur = UIVisualEffectView(effect: UIBlurEffect(style: .Light)) as UIVisualEffectView
blur.frame = self.view.frame
self.view.addSubview(blur)
}
addSubView是否覆盖它?如果是这样的话,我尝试了insersubview:index,但这似乎也不起作用 尝试在viewDidLoad中调用方法将取代viewDidLoad,因为在viewDidLoad中,您可能仍然没有主视图的适当框架。不,这不起作用,我只是想有没有一种更快的方法以编程方式显示多个按钮。