协议产品{
var code：String {get set}
var sp：String {get set}
}

class Stock: NSManagedobject,Product {

@NSManaged var code: String
@NSManaged var sp: String

}

错误：架构i386的未定义符号：
“__TFC11YellowPages5Stockg2spSS”,引自：
Stock.o中的__TFC11YellowPages5Stockm2spSS
“__TFC11YellowPages5Stockg4codeSS”,引自：
Stock.o中的__TFC11YellowPages5Stockm4codeSS
ld：找不到架构i386的符号
clang：错误：链接器命令失败,退出代码为1(使用-v查看调用)

class MyEntity: NSManagedobject {

    @NSManaged var testAttribute: String
}

@objc
protocol MyProtocol {

    var testAttribute: String { get set }
}

extension MyEntity: MyProtocol { }

class ViewController: UIViewController {

    override func viewDidLoad() {
        super.viewDidLoad()
        let appDelegate = UIApplication.sharedApplication().delegate as AppDelegate
        let myContext = appDelegate.managedobjectContext!
        let entity: MyEntity = NSEntityDescription.insertNewObjectForEntityForName("MyEntity",inManagedobjectContext: myContext) as MyEntity
        foo(entity)
        println(entity.testAttribute)
    }

    func foo(var object: MyProtocol) {
        object.testAttribute = "bar"
    }
}

下面也有用,但我认为以上是更好的方法：

@objc
protocol MyProtocol {

    var testAttribute: String { get set }
}

class MyEntity: NSManagedobject,MyProtocol {

    @NSManaged var testAttribute: String
}

class ViewController: UIViewController {

    override func viewDidLoad() {
        super.viewDidLoad()
        let appDelegate = UIApplication.sharedApplication().delegate as AppDelegate
        let myContext = appDelegate.managedobjectContext!
        let entity: MyEntity = NSEntityDescription.insertNewObjectForEntityForName("MyEntity",inManagedobjectContext: myContext) as MyEntity
        foo(entity)
        println(entity.testAttribute)
    }

    func foo(var object: MyProtocol) {
        object.testAttribute = "bar"
    }
}

“Type’PhotoLibrary’不符合协议’MWPhotobrowserDelegate’”

Cocoa协议似乎工作正常.有没有人遇到过这个问题？

以下是示例代码：

class PhotoLibrary: UIImageView,MWPhotobrowserDelegate {

    init() {
        super.init(frame: CGRectZero)
    }

    func numberOfPhotosInPhotobrowser(photobrowser: MWPhotobrowser!) -> Int {
        return 0
    }

    func photobrowser(photobrowser: MWPhotobrowser!,photoAtIndex index: Int) -> MWPhoto! {
        return nil
    }
}

协议定义如下：

@protocol MWPhotobrowserDelegate <NSObject>

- (NSInteger)numberOfPhotosInPhotobrowser:(MWPhotobrowser *)photobrowser;
- (id <MWPhoto>)photobrowser:(MWPhotobrowser *)photobrowser photoAtIndex:(NSInteger)index;

@optional

- (id <MWPhoto>)photobrowser:(MWPhotobrowser *)photobrowser thumbPhotoAtIndex:(NSUInteger)index;
- (MWCaptionView *)photobrowser:(MWPhotobrowser *)photobrowser captionViewForPhotoAtIndex:(NSUInteger)index;
- (Nsstring *)photobrowser:(MWPhotobrowser *)photobrowser titleForPhotoAtIndex:(NSUInteger)index;
- (void)photobrowser:(MWPhotobrowser *)photobrowser diddisplayPhotoAtIndex:(NSUInteger)index;
- (void)photobrowser:(MWPhotobrowser *)photobrowser actionButtonpressedForPhotoAtIndex:(NSUInteger)index;
- (BOOL)photobrowser:(MWPhotobrowser *)photobrowser isPhotoSelectedAtIndex:(NSUInteger)index;
- (void)photobrowser:(MWPhotobrowser *)photobrowser photoAtIndex:(NSUInteger)index selectedChanged:(BOOL)selected;
- (void)photobrowserDidFinishModalPresentation:(MWPhotobrowser *)photobrowser;

@end

func showFullScreenImage(image:UIImage) {
    let photo:MWPhoto = MWPhoto(image:image)

    self.photos = [photo]

    let browser:MWPhotobrowser = MWPhotobrowser(delegate: self)

    browser.displayActionButton = true
    browser.displayNavArrows = false
    browser.displaySelectionButtons = false
    browser.zoomPhotosToFill = true
    browser.alwaysShowControls = false
    browser.enableGrid = false
    browser.startOnGrid = false
    browser.enableSwipetodismiss = true

    browser.setCurrentPhotoIndex(0)

    self.navigationController?.pushViewController(browser,animated: true)
}

func numberOfPhotosInPhotobrowser(photobrowser: MWPhotobrowser!) -> UInt {
    return UInt(self.photos.count)
}

func photobrowser(photobrowser: MWPhotobrowser!,photoAtIndex index: UInt) -> MWPhotoProtocol! {
    if Int(index) < self.photos.count {
        return photos.objectAtIndex(Int(index)) as! MWPhoto
    }
    return nil
}

func photobrowserDidFinishModalPresentation(photobrowser:MWPhotobrowser) {
    self.dismissViewControllerAnimated(true,completion:nil)
}

我将照片设置为类var,例如private var photos = [],并在我的应用程序的Bridging-Header.h文件中添加了以下导入：

#import <MWPhotobrowser/MWPhoto.h>
#import <MWPhotobrowser/MWPhotobrowser.h>

我从https://github.com/mwaterfall/MWPhotoBrowser/issues/325#issuecomment-64781477获得了上面的大部分代码.

“词汇或预处理器问题：’ModuleName-Swift.h文件未找到’”

该项目编译很好,但是预处理器会为头部找不到错误,并且对于类中调用的任何Swift类,都没有语法突出显示或代码完成.这是一个使用Xcode 8无法识别的Objective-c中的Swift类的工作,但是编译也很好.

关于如何安抚Xcode 8中的预处理器的任何想法？

协议是

@protocol ATLParticipant <NSObject>
@property (nonatomic,readonly) Nsstring *firstName;
@property (nonatomic,readonly) Nsstring *lastName;
@property (nonatomic,readonly) Nsstring *fullName;
@property (nonatomic,readonly) Nsstring *participantIdentifier;
@end

我已经制作了这个应该符合它的快速类,但是Xcode说它没有.

class ConversationParticipant: NSObject,ATLParticipant {
    var firstName: Nsstring?
    var lastName: Nsstring?
    var fullName: Nsstring?
    var participantIdentifier: Nsstring?

    override init() {
        super.init()
    }
}

我已经尝试使成员变量可选(如上所述),并解包,并使用private(set)作为前缀,以使它们只读,但这些变体都不起作用.

class ConversationParticipant: NSObject,ATLParticipant {

    var firstName: String!
    var lastName: String!
    var fullName: String!
    var participantIdentifier: String!
    var avatarImage: UIImage!

    override init() {
        super.init()
    }
}