ios - NavigationItem.rightBarButtonItem 不工作

Question

这是初始化的共享按钮：

let shareButton = UIBarButtonItem(image: #imageLiteral(resourceName: "ShareButtonCircle"), style: .plain, target: self, action: #selector(shareButtonTapped))

这是 Objc 方法：

print("Share Button Clicked")
    let topicTitleAndDesc = [self]
    let vc = UIActivityViewController(activityItems: topicTitleAndDesc, applicationActivities: nil)
    present(vc, animated: true)

viewDidLoad：

self.navigationItem.rightBarButtonItem = shareButton

显示在屏幕上但不执行操作：

标签： iosswiftuinavigationbarrightbarbuttonitem

Answer 1

您正在尝试共享 UIViewController，这就是为什么您没有得到任何响应的原因。尝试按如下方式更改项目：

let vc = UIActivityViewController(activityItems: [String(describing: self)], applicationActivities: nil)