iOS将UITextView文本选择传播到UITableviewCell以显示操作菜单项

func textViewDidChangeSelection(_ textView: UITextView) {
    let selectedRange = textView.selectedRange
    if selectedRange.length > 0 {
        // 文本被选择了
        showMenuForSelectedText(selectedRange)
    } else {
        // 文本选择取消
        hideMenu()
    }
}

func showMenuForSelectedText(_ selectedRange: NSRange) {
    // 创建UIMenuController并设置菜单项
    let menuController = UIMenuController.shared
    let menuItem = UIMenuItem(title: "操作菜单项", action: #selector(handleMenuItem(_:)))
    menuController.menuItems = [menuItem]
    
    // 获取UITextView的选中区域的矩形框
    let selectedRect = textView.firstRect(for: selectedRange)
    
    // 将矩形框坐标转换为视图坐标
    let convertedRect = textView.convert(selectedRect, to: view)
    
    // 设置菜单显示位置并显示
    menuController.setTargetRect(convertedRect, in: view)
    menuController.setMenuVisible(true, animated: true)
}

func hideMenu() {
    // 隐藏菜单
    let menuController = UIMenuController.shared
    menuController.setMenuVisible(false, animated: true)
}

@objc func handleMenuItem(_ sender: UIMenuItem) {
    // 处理菜单项点击事件
    // 在这里可以执行你想要的操作，比如复制、粘贴、删除等
}

override func canPerformAction(_ action: Selector, withSender sender: Any?) -> Bool {
    if action == #selector(copy(_:)) {
        // 支持复制操作
        return true
    }
    return false
}

override func copy(_ sender: Any?) {
    // 执行复制操作
    let pasteboard = UIPasteboard.general
    pasteboard.string = // 获取要复制的文本
}