mono touch中UISwitch控件的使用

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using System;//using MonoTouch.UIKit;using MonoTouch.Foundation;using System.Drawing;namespace GCForum{public class MyTestVC :UIViewController{public MyTestVC (){}private UISwitch _switch;public override void ViewDidLoad (){base.ViewDidLoad ();this.View.BackgroundColor = UIColor.White;UILabel lbl = xxxx.ControlCenter.CreateLbl (new RectangleF (10, 100, 100, 20), "");this.View.Add (lbl);_switch = new UISwitch {BackgroundColor = UIColor.Red,Frame = new RectangleF (new PointF(10,10),SizeF.Empty)};_switch.SetState (true, false); //默认设置on选项_switch.ValueChanged += delegate {lbl.Text=_switch.On.ToString();};this.View.Add (_switch);}//...}}

关键是ValueChanged方法，另外，虽然说UISwitch是继承于UIControl，但它的大小是固定的，你即便设置了它的大小，显示不会有变化。