如何在 Monotouch 中绑定 NSObject<EAAccessoryDelegate, NSStreamDelegate>？答案

【问题标题】：How to bind NSObject<EAAccessoryDelegate, NSStreamDelegate> in Monotouch?如何在 Monotouch 中绑定 NSObject<EAAccessoryDelegate, NSStreamDelegate>？
【发布时间】：2013-08-27 01:28:33
【问题描述】：

我正在尝试绑定一个库，我在 .h 文件中有以下定义

@interface FbFAccessoryController : NSObject <EAAccessoryDelegate, NSStreamDelegate> {

    id <FbFmobileOneDelegate> _delegate;

    BOOL    ScannerStarted;
}

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

@property (readonly, nonatomic) BOOL Version1b;

- (BOOL)mobileOneConnected;

@property (readonly, nonatomic) NSNumber *VoltIndex;

@property (readonly, nonatomic) BOOL ScannerStarted;

- (void)startScanner;

- (void)stopScanner;

- (void)checkBattery;

@end

为代表

@class FbFAccessoryController;

@protocol FbFmobileOneDelegate <NSObject>

@required

- (void) mobileOneAccessoryController:(FbFAccessoryController *)mobileOne didChangeConnectionStatus:(BOOL)connected;

- (void) mobileOneAccessoryController:(FbFAccessoryController *)mobileOne didReceiveData:(NSData *)data;

@optional

- (void) mobileOneAccessoryController:(FbFAccessoryController *)mobileOne didReceiveError:(NSError *)error;

- (void) mobileOneAccessoryController:(FbFAccessoryController *)mobileOne didReceiveScannerStartStop:(BOOL)started;

- (void) mobileOneAccessoryController:(FbFAccessoryController *)mobileOne didReceiveDataSpin:(BOOL)started;

@end

我使用 ObjectiveSharpie 生成绑定，但是当我尝试编译时出现以下错误：

在接口列表中键入MonoTouch.ExternalAccessory.EAAccessoryDelegate' in interface list is not an interface TypeMonoTouch.Foundation.NSStreamDelegate' 不是接口

而objectiveharpie生成的代码是：

public partial interface FbFAccessoryController : EAAccessoryDelegate, NSStreamDelegate {


        [Export ("delegate", ArgumentSemantic.Assign)]
        FbFmobileOneDelegate Delegate { get; set; }

        [Static, Export ("sharedController")]
        FbFAccessoryController SharedController { get; }

        [Export ("Version1b")]
        bool Version1b { get; }

        [Export ("mobileOneConnected")]
        bool MobileOneConnected { get; }

        [Export ("VoltIndex")]
        NSNumber VoltIndex { get; }

        [Export ("ScannerStarted")]
        bool ScannerStarted { get; }

        [Export ("startScanner")]
        void StartScanner ();

        [Export ("stopScanner")]
        void StopScanner ();

        [Export ("checkBattery")]
        void CheckBattery ();
    }

【问题讨论】：

标签： binding xamarin.ios xamarin

【解决方案1】：

协议应该用[Model] 属性修饰，这样您就可以像接口一样实现它们。

因此，如果不使用 ObjectiveSharpie，它应该如下所示：

[BaseType (typeof(NSObject))]
interface FbFAccessoryController : EAAccessoryDelegate, NSStreamDelegate {

    [Export ("delegate", ArgumentSemantic.Assign)]
    FbFmobileOneDelegate Delegate { get; set; }

    // ... //
}

前提是 Delegates 是这样定义的：

[Model] //Look, no BaseType
interface EAAccessoryDelegate {
    // [Export] what you need here
}

[Model]
interface NSStreamDelegate {
    // [Export] what you need here
}

【讨论】：