带委托的绑定方法 [英] Bind Method With Delegate

问题描述

我正在创建一个绑定库来绑定本机Objective-C框架.

I'm creating a binding library to bind native Objective-C framework.

我有以下代表，我需要将其声明添加到ApiDefinition文件中，然后需要使用Xamarin.iOS应用程序来实现它:

I have the following delegate which I need to add it's declaration to ApiDefinition file and then I need to implement it using my Xamarin.iOS app:

- (void)Initialize:(id <MMSDKDelegate> _Nullable)pDelegate;

MMSDKDelegate:

@protocol MMSDKDelegate <IMMDelegate>
- (void)Started;
@end

IMMDelegate:

@protocol IMMDelegate
- (void)Inserted;
- (void)Removed;
- (void)ReaderConnected;
- (void)ReaderRemoved;
@end

我需要ApiDefinition文件中的必需定义，并且我需要一个示例代码来从我的Xamarin.iOS应用程序中调用此方法.

I need the required definition in ApiDefinition file and I need a sample code to call this method from my Xamarin.iOS app.

更新

我正在处理的框架正在与读卡器设备与iPhone相连以读取ID信息，它具有在插入/移除和删除阅读器时调用的方法卡已插入/已拔出..

The Framework I'm dealing with is communicating with card reader device attached with iPhone to read ID card info, it has methods to be called on reader inserted / removed & card inserted / removed..

我已经通过@ cole-xia实现了答案，但是问题是IMMDelegate中的方法永远不会在插入读卡器或ID时调用.当我调用ReadCardData()时，它应该调用Started()，这将显示Inserted()保存的信息，但是当前结果是在调用ReadCardData()之后调用了Started()方法，但是Inserted()和ReaderConnected()是从未在任何阶段打电话.

I have implemented the answer by @cole-xia, but the issue is the methods inside IMMDelegate are never called when I insert card reader or ID. When I call ReadCardData(), it should call Started() which will display information saved by Inserted(), but the current result is that Started() method is called after calling ReadCardData(), but Inserted() and ReaderConnected() are never called in any stage.

在Framework的演示应用程序中，它可用于以下目的(并且可以正常运行):

In the demo app of Framework, it is used as the following (and works properly):

// Demo app -> ViewController.m

@interface ViewController () <MMSDKDelegate>

@end


@implementation ViewController {
    MMSDK *sdkInstance;
}


- (void)viewDidAppear:(BOOL)animated
{
    [super viewDidAppear:animated];

    sdkInstance = [MMSDK SharedInstance];
    [sdkInstance Initialize:self];
}


- (void)Started
{
    // Update UI by: reading in progress ..
}


- (void)Inserted
{
    // Update UI by: card inserted
    // And read card data
    [self readData:self];
}

- (void)Removed
{
    // Update UI by: card removed
}

- (void)ReaderConnected
{
    // Update UI by: card reader connected
}

- (void)ReaderRemoved
{
    // Update UI by: card reader removed
}


- (IBAction)readData:(id)sender
{
    var *data = [sdkInstance ReadCardData:YES pWithSignatureImage:YES pWithAddressData:YES];
    if (data.hasError) {
        // No data fetched
        return;
    }

    if (data) {
        // return card data
    }
}

欢迎并提出所有建议.

总而言之，我只需要在Xamarin.iOS应用中执行演示应用的相同功能即可.

推荐答案

使用 我这边的结果:

// @protocol IMMDelegate
[BaseType (typeof (NSObject))]
[Protocol, Model]
interface IMMDelegate
{
    // @required -(void)Inserted;
    [Abstract]
    [Export ("Inserted")]
    void Inserted ();

    // @required -(void)Removed;
    [Abstract]
    [Export ("Removed")]
    void Removed ();
}

// @protocol MMSDKDelegate <IMMDelegate>
[BaseType (typeof (NSObject))]
[Protocol, Model]
interface MMSDKDelegate : IMMDelegate
{
    // @required -(void)Started;
    [Abstract]
    [Export ("Started")]
    void Started ();
}

// @interface ACR : NSObject
[BaseType (typeof(NSObject))]
interface YourClass
{
    // -(void)Initialize:(id<MMSDKDelegate> _Nullable)pDelegate;
    [Export ("Initialize:")]
    void Initialize ([NullAllowed] MMSDKDelegate pDelegate);
}

用法:

class MyDelegate : MMSDKDelegate {
    public void Started()
    {
    }

    public override void Removed()
    {
    }
    public override void Inserted()
    {
    }
}


//In ViewController

public override void ViewDidLoad()
{
    base.ViewDidLoad();

    YourClass yourClass = new YourClass();
    yourClass.Initialize(new MyDelegate());
}

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