swift學習筆記

<span style="white-space:pre">	</span>// button
        let button = UIButton(frame:CGRect(origin: CGPointMake(50.0, 210.0), size: CGSizeMake(100, 50)))
        button.backgroundColor = UIColor.redColor()
        button.setTitle("ok", forState: UIControlState.Normal)
        button.addTarget(self, action: "buttonClickAction:", forControlEvents: UIControlEvents.TouchUpInside)
        self.view.addSubview(button)

<span style="white-space:pre">	</span>// label
        var label = UILabel(frame:CGRect(origin: CGPointMake(10.0, 50.0), size: CGSizeMake(100, 50)))
        label.text = "hello first"
        self.view.addSubview(label)

<span style="white-space:pre">	</span>// alert view
        var alert = UIAlertView()
        alert.title = "hello alert"
        alert.delegate = self
        alert.addButtonWithTitle("ok")
        alert.message = "this is alert view"
        alert.show()

堅持每天學習幾個swift小控件