MonoTouch 綁定

對綁定不了解的,請參考這篇文章 http://www.cnblogs.com/beginor/archive/2012/04/22/2465441.html

本文主要講述上文沒有提到的

1.構造函數

在MonoTouch綁定中,構造函數名是固定的,都是 Constructor,傳回類型:IntPtr.

Obj-C 代碼:

-(id)initWithCenterViewController:(UIViewController *)centerViewController leftDrawerViewController:(UIViewController *)leftDrawerViewController rightDrawerViewController:(UIViewController *)rightDrawerViewController;      

綁定到MonoTouch:

[Export ("initWithCenterViewController:leftDrawerViewController:rightDrawerViewController:")]
IntPtr Constructor (UIViewController centerViewController, UIViewController leftDrawerViewController, UIViewController rightDrawerViewController);              

2.代碼塊

在Obj-C中,代碼塊很常用.它和.NET的Lamda表達式相似.可以綁定到委托(Delegate).

Obj-C代碼:

-(void)setDrawerVisualStateBlock:(void(^)(MMDrawerController * drawerController, MMDrawerSide drawerSide, CGFloat percentVisible))drawerVisualStateBlock;      

綁定到MonoTouch時,分兩部分:

delegate void SetDrawerVisualStateBlockCallback (MMDrawerController  drawerController, MMDrawerSide drawerSide, float percentVisible);      

[Export ("setDrawerVisualStateBlock:")]
void setDrawerVisualStateBlock (SetDrawerVisualStateBlockCallback drawerVisualStateBlock);      

在實際調用時:

this.drawerController.setDrawerVisualStateBlock ((MMDrawerController  drawerController, MMDrawerSide drawerSide, float percentVisible)=>{
            Console.WriteLine("setDrawerVisualStateBlock");
});      

3.委托(Delegate)

這個比較直接，和.NET相似。

Obj-C代碼:

@protocol FPPopoverControllerDelegate <NSObject>

@optional
- (void)popoverControllerDidDismissPopover:(FPPopoverController *)popoverController;
- (void)presentedNewPopoverController:(FPPopoverController *)newPopoverController 
          shouldDismissVisiblePopover:(FPPopoverController*)visiblePopoverController;
@end      

@property(nonatomic,assign) id<FPPopoverControllerDelegate> delegate;      

綁定到MonoTouch時,也分兩部分:

[Model, BaseType (typeof(NSObject))]
    interface FPPopoverControllerDelegate
    {
        [Export ("popoverControllerDidDismissPopover:")]
        void popoverControllerDidDismissPopover (FPPopoverController popoverController);

        [Export ("shouldDismissVisiblePopover:visiblePopoverController")]
        void shouldDismissVisiblePopover (FPPopoverController newPopoverController, FPPopoverController visiblePopoverController);
    }      

[Export("delegate")]
        NSObject WeakDelegate { get; set; }

        [Wrap("WeakDelegate")]
        FPPopoverControllerDelegate Delegate { get; set; }      

4.綁定類别(Category)

這個似乎目前還沒有實作.預計它以後的實作可能是這樣:

namespace XYOrigami
{
  delegate void OrigamiAnimationCompleted (bool finished);

  [BaseType (typeof(UIView))]
  [Category]
  interface Origami{

      [Export ("showOrigamiTransitionWith:NumberOfFolds:Duration:Direction:completion:")]
      void ShowOrigamiTransition (UIView view, int folds, float duration, XYOrigamiDirection direction, OrigamiAnimationCompleted completed);

      [Export ("hideOrigamiTransitionWith:NumberOfFolds:Duration:Direction:completion:")]
      void HideOrigamiTransition (UIView view, int folds, float duration, XYOrigamiDirection direction, OrigamiAnimationCompleted completed);
  }
}      

以上推測的依據是從  http://stackoverflow.com/questions/14961716/monotouch-binding-categories-using-category-attribute 而來.回答者 chrisntr 屬于Xamarin 開發團隊.

轉載于:https://www.cnblogs.com/Caiyinsoft/p/3466102.html