如何在Swift中定义自定义UIGestureRecognizer？ [英] How can I define the custom UIGestureRecognizer in Swift?

问题描述

我想在Swift中定义自定义UIGestureRecognizer，但我无法导入UIGestureRecognizerSubclass，也无法覆盖touchesBegan，touchesMoved等方法。

I want to define the custom UIGestureRecognizer in Swift, but I cannot import UIGestureRecognizerSubclass and cannot override the methods of "touchesBegan", "touchesMoved", and so on.

UIGit模块中有UIGestureRecognizerSubclass.h，但是只能在Swift中导入模块，并且无法导入头文件。

"UIGestureRecognizerSubclass.h" is in the UIKit module, but only modules can likely be imported in Swift and header files cannot be imported.

如何导入UIGestureRecognizerSubclass并定义自定义UIGestureRecognizer？

How can I import UIGestureRecognizerSubclass and define the custom UIGestureRecognizer?

编辑：

我添加了在Bridging-Header.h中的代码下方，我成功编译了我的自定义手势识别器。

I added the below code in Bridging-Header.h and I successfully compiled my custom gesture recognizer.

#import <UIKit/UIGestureRecognizerSubclass.h>

但是这段代码可能会为我项目中的每个swift文件导入UIGestureRecognizerSubclass.h，所以我是认为这不是最好的方式。

But this code may import "UIGestureRecognizerSubclass.h" for every swift files in my project, so I am thinking it is not the best way.

这是正确的方法吗？
还有其他合适的解决方案吗？

Is it right way? Is there another proper solution?

推荐答案

您需要添加导入：

import UIKit.UIGestureRecognizerSubclass

as in：

import UIKit
import UIKit.UIGestureRecognizerSubclass

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