获取对PopUp菜单视图的引用

// 在Activity中获取PopUp菜单的引用
PopupMenu popupMenu = new PopupMenu(this, view);
MenuInflater inflater = popupMenu.getMenuInflater();
inflater.inflate(R.menu.popup_menu, popupMenu.getMenu());
popupMenu.setOnMenuItemClickListener(new PopupMenu.OnMenuItemClickListener() {
    @Override
    public boolean onMenuItemClick(MenuItem item) {
        // 处理菜单项点击事件
        return true;
    }
});
popupMenu.show();

// 在ViewController中获取PopUp菜单的引用
let popupMenu = UIAlertController(title: nil, message: nil, preferredStyle: .actionSheet)
popupMenu.addAction(UIAlertAction(title: "Option 1", style: .default, handler: { _ in
    // 处理选项1点击事件
}))
popupMenu.addAction(UIAlertAction(title: "Option 2", style: .default, handler: { _ in
    // 处理选项2点击事件
}))
self.present(popupMenu, animated: true, completion: nil)

// 使用HTML和JavaScript创建PopUp菜单
const button = document.getElementById('popupButton');
button.addEventListener('click', function() {
    const popupMenu = document.createElement('div');
    popupMenu.innerHTML = `
        <ul>
            <li><a href="#" id="option1">Option 1</a></li>
            <li><a href="#" id="option2">Option 2</a></li>
        </ul>
    `;
    document.body.appendChild(popupMenu);

    document.getElementById('option1').addEventListener('click', function(event) {
        event.preventDefault();
        // 处理选项1点击事件
        popupMenu.remove();
    });

    document.getElementById('option2').addEventListener('click', function(event) {
        event.preventDefault();
        // 处理选项2点击事件
        popupMenu.remove();
    });
});