WebAug 24, 2024 · Yes, with the button it works, but I want to scroll automatically as the page renders on the browser, but if I write the code inside the componentDidMount() function I get that the reference is NULL, like it is not yet ready at that point, same if I give an id to the element and then use jQuery inside the lifecycle function, the element is NULL.Can you … WebApr 12, 2024 · 手写锚点,且随着滚动屏幕自动高亮. 页面上顶部导航栏,要实现1.点击到哪个就哪个 高亮 2.刷新页面时可以定位到对应 高亮 页面的导航。. 用react要实现类似的操作,主要就是用currentTarget定位到currentIndex,通过判断currentIndex在哪个元素实现切换。. 实现 …
(react)设置scrollTop无效的原因及解决方法 - CSDN博客
Web您可以使用AlertDialog来获取列表,在show之后您可以滚动到某个位置。 试着这样应该行得通。 fun createAlert(activity: Activity, mandatory: Boolean, provinceSelected: (Int) -> Unit) { val provinceDialog: AlertDialog.Builder = AlertDialog.Builder(activity) provinceDialog.setTitle(activity.getString(R.string.select_province_from_list)) … WebJun 15, 2024 · The solution: The useRef hook paired with the Element.scrollIntoView () method. The scrollIntoView () method can be called on DOM elements. With vanilla JavaScript, this problem could be solved by adding an Id to the About component element and calling the scroll method on click. React requires a slightly different approach. earth pak waterproof backpack amzon
Element.scrollIntoView() - Web API 接口参考 MDN - Mozilla …
WebApr 6, 2024 · 43export default App. Here we have used the useRef hook to create a reference to the section to which we want to scroll. When the button is clicked we are calling the scrollIntoView method of the reference. In the block option, you can specify 'end' to scroll to the end of the section and 'center' to scroll into the center of the section. WebFeb 28, 2024 · 将锚点用传统的name属性,改成id属性。. 这样我们就可以用document.getElementById方法方便的查询查询到锚点。. 将原来的红色按钮的href属性去掉,然后添加一个onClick方法。. onClick方法传入一个锚点的id,然后用下面的函数来找到锚点并跳转到锚点。. scrollToAnchor ... WebMar 1, 2024 · I have built a simple chatbot using react, and when the user sends a message i want to show the last message in the chatWindow component, so I used the following … ct lawmaker arrested