c# - 在 Binding 项目中实现 MKAnnotation 协议(protocol)

Question

您好，您好，您正在尝试在 iOS 绑定(bind)项目中创建以下声明。源 Objective C 声明如下

@interface LeBlutrackerDevice : LeDevice <MKAnnotation>
{
    CLLocationCoordinate2D _coord;
}

@property (nonatomic,readonly,copy) NSString *title;
@property (nonatomic,readonly,copy) NSString *subtitle;
@property (nonatomic,readonly) CLLocationCoordinate2D coordinate;

@property (nonatomic, strong) NSString *svInfo;
@property (nonatomic, strong) NSString *navInfo;

@property (nonatomic,readonly) enum LE_DEVICE_STATE state;
@property (nonatomic,strong) id <LeBlutrackerDeviceDelegate> delegate;
@property (readonly) BOOL bcKeyEnabled;
- (BOOL) writeBroadcastKey: (NSData *) key;

@end

这就是我在 ApiDefinition.cs 中的内容

[Model, BaseType (typeof (LeDevice))]
public partial interface LeBlutrackerDevice : MKAnnotation
{
    [Export ("title", ArgumentSemantic.Copy)]
    string Title { get; }

    [Export ("subtitle", ArgumentSemantic.Copy)]
    string Subtitle { get; }

    [Export ("coordinate")]
    CLLocationCoordinate2D Coordinate { get; }

    [Export ("svInfo", ArgumentSemantic.Retain)]
    string SvInfo { get; set; }

    [Export ("navInfo", ArgumentSemantic.Retain)]
    string NavInfo { get; set; }

    [Export ("state")]
    LE_DEVICE_STATE State { get; }

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

    [Export ("bcKeyEnabled")]
    bool BcKeyEnabled { get; }

    [Export ("writeBroadcastKey:")]
    bool WriteBroadcastKey (NSData key);
}

我得到以下错误

Target GenerateBindings:

ApiDefinition.cs(309,48): error CS0527: Type `MonoTouch.MapKit.MKAnnotation' in interface list is not an interface

ApiDefinition.cs(313,10): warning CS0108: `SticknFind.LeBlutrackerDevice.Title' hides inherited member `MonoTouch.MapKit.MKAnnotation.Title'. Use the new keyword if hiding was intended

ApiDefinition.cs(316,10): warning CS0108: `SticknFind.LeBlutrackerDevice.Subtitle' hides inherited member `MonoTouch.MapKit.MKAnnotation.Subtitle'. Use the new keyword if hiding was intended

ApiDefinition.cs(319,26): warning CS0108: `SticknFind.LeBlutrackerDevice.Coordinate' hides inherited member `MonoTouch.MapKit.MKAnnotation.Coordinate'. Use the new keyword if hiding was intended

有人试图为 SticknFind SDK 创建绑定(bind)吗？请让我知道，因为我非常乐意在 GitHub 上发布最终结果。

如果我尝试从 IMKAnnotation 继承它，我会收到以下错误

btouch: No [Export] attribute on property SticknFind.LeBlutrackerDevice.Coordinate
Task "BTouch" execution -- FAILED

Answer 1

您想从接口(interface)而不是类型继承，这就是导致第一个 CS0527 错误的原因。

它是用 [Protocol] 属性修饰的接口(interface)(因此它将匹配 ObjC 声明)。它还将解决后来的 CS0108 错误，因为该类型具有不属于协议(protocol)一部分的额外成员。

所以这应该可以解决:

[BaseType (typeof (LeDevice))]
public partial interface LeBlutrackerDevice : IMKAnnotation {
   ...
}