在swift中子类化“PDFView”无法找到接口声明

I am trying to make a subclass of PDFKit's PDFView in my macOS application, which has legacy objective-c code as part of the project.

我正在尝试在macOS应用程序中创建PDFKit的PDFView的子类，该应用程序将遗留的objective-c代码作为项目的一部分。

My swift class looks like this:

我的swift类是这样的:

import Foundation
import Quartz

class customPDFView: PDFView
{
    required init?(coder: NSCoder) {
        super.init(coder: coder)
    }
}

During the build I get an error in my 'projectName-Swift.h' file, which has created this:

在构建过程中，我在“projectName-Swift”中得到一个错误。h' file，它创建了以下内容:

SWIFT_CLASS("_TtC5NVivo13customPDFView")
@interface customPDFView : PDFView
- (nullable instancetype)initWithCoder:(NSCoder * _Nonnull)coder OBJC_DESIGNATED_INITIALIZER;
- (nonnull instancetype)initWithFrame:(NSRect)frameRect SWIFT_UNAVAILABLE;
@end

The second line in the above code produces the error: Cannot find interface declaration for 'PDFView', superclass of 'customPDFView'

上面代码的第二行产生错误:无法找到“PDFView”的接口声明，这是“customPDFView”的超类

Note: My 'projectName.h' file includes both lines @import Foundation and @import Quartz.

注意:我的“projectName。h文件包括@import Foundation和@import Quartz。

Any help would be greatly appreciated!

如有任何帮助，我们将不胜感激!

1 个解决方案

#1

I have found an answer so will post if anyone else ever stumbles across this issue.

我已经找到了答案，如果有人遇到这个问题，我也会发帖子。

In my <projectName>-Bridging-Header.h file I added in the line #import <Quartz/Quartz.h> and this solved the issue!

在我的< projectName > -Bridging-Header。h文件我添加在#import

#1