binding - XCode 库的 Monotouch 绑定(bind)

Question

我正在尝试绑定(bind)一个 Xcode 库，并且正在为如何做到这一点而绞尽脑汁。当我尝试访问任何事件或方法时，应用程序会严重崩溃。

下面是我的描述

using System;
using System.Drawing;
using MonoTouch.Foundation;
using MonoTouch.ObjCRuntime;
using MonoTouch.UIKit;

namespace BardecodeBinding
{
    [BaseType (typeof(NSObject),
            Delegates= new string [] {"WeakDelegate"},
            Events = new Type [] { typeof(BardecodeDelegate) })]
    interface Bardecode
    {
        [Export ("delegate", ArgumentSemantic.Assign)]
        [NullAllowed]
        NSObject WeakDelegate { get; set; }

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

        [Export("ScanBarcodeFromViewFinder")]
        void ScanBarcodeFromViewFinder();
    }

    [BaseType (typeof(NSObject))]
    interface BardecodeDelegate
    {
        [Export ("didfinish:sender:notification:"), EventArgs("BardecodeDidFinish")]
        void DidFinish (Bardecode sender, NSNotification notification);
    }
}

我正在尝试绑定(bind) Softek (http://www.bardecode.com/) 的 Bardecode 库。这是他们的头文件(部分)

#import <Foundation/Foundation.h>
#import <AVFoundation/AVFoundation.h>
#include "barcode.h"

#if TARGET_IPHONE_SIMULATOR
@interface Bardecode : NSObject <UINavigationControllerDelegate,     UIImagePickerControllerDelegate>
#else
@interface Bardecode : NSObject <UINavigationControllerDelegate,     UIImagePickerControllerDelegate, AVCaptureVideoDataOutputSampleBufferDelegate>
#endif
{
...
- (void) ScanBarcodeFromViewFinder;
...
}

@interface NSObject(NSWindowNotifications)
- (void)BardecodeDidFinish:(NSNotification*)notification;
@end

这是我尝试使用生成的绑定(bind)的方法

    Bardecode bardecode = new Bardecode();
    bardecode.DidFinish += BardecodeDidFinish;
    bardecode.ScanBarcodeFromViewFinder();

以及回调例程:

    private void BardecodeDidFinish(object sender, EventArgs args)
    {
    }

尽管文档指出应该生成名为 BardecodeDidFinishEventArgs 的类，但事实并非如此。

这是添加库文件后 MonoDevelop 生成的内容。

using System;
using MonoTouch.ObjCRuntime;

[assembly: LinkWith ("libbardecode.a", LinkTarget.ArmV6 | LinkTarget.ArmV7 | LinkTarget.Simulator, ForceLoad = true)]

问候 保罗

Answer 1

I'm trying to bind a Xcode library and am pulling my hair out on how to do that. The App crashes terribly when I try to access any event or method.

您有这些崩溃的崩溃报告吗？您确切知道哪一行托管代码导致崩溃吗？

Although the documentation states that a class with name BardecodeDidFinishEventArgs should be generated, it is not.

绑定(bind)项目不会生成您将看到的源代码，生成的源代码在编译后会自动删除。您可以在绑定(bind)库上运行 Reflector 以准确查看生成的内容。