javascript - scrollIntoView 边缘不平滑

Question

我使用 vanilla JS 让按钮平滑地向下滚动到 div 元素(定位 id)

我的代码是这样的:

this.myButton.addEventListener("click",load_section);
function load_section() {  
        document.querySelector('#myDiv').scrollIntoView({ block: 'end',  behavior: 'smooth' });  
    }

在所有其他浏览器中，这会顺利滚动到该部分。在 Edge 中，它只是跳转到它。我需要更改什么才能使其平滑地向下滚动到该部分

Answer 1

有关平滑滚动方法的更全面列表，请参阅我的回答 here .

---

要在精确的时间内滚动到某个位置，window.requestAnimationFrame可以投入使用，每次计算适当的当前位置。要滚动到某个元素，只需将 y 位置设置为 element.offsetTop。

/*
   @param pos: the y-position to scroll to (in pixels)
   @param time: the exact amount of time the scrolling will take (in milliseconds)
*/
function scrollToSmoothly(pos, time) {
    var currentPos = window.pageYOffset;
    var start = null;
    if(time == null) time = 500;
    pos = +pos, time = +time;
    window.requestAnimationFrame(function step(currentTime) {
        start = !start ? currentTime : start;
        var progress = currentTime - start;
        if (currentPos < pos) {
            window.scrollTo(0, ((pos - currentPos) * progress / time) + currentPos);
        } else {
            window.scrollTo(0, currentPos - ((currentPos - pos) * progress / time));
        }
        if (progress < time) {
            window.requestAnimationFrame(step);
        } else {
            window.scrollTo(0, pos);
        }
    });
}

演示:

function scrollToSmoothly(pos, time) {
    var currentPos = window.pageYOffset;
    var start = null;
    if(time == null) time = 500;
    pos = +pos, time = +time;
    window.requestAnimationFrame(function step(currentTime) {
        start = !start ? currentTime : start;
        var progress = currentTime - start;
        if (currentPos < pos) {
            window.scrollTo(0, ((pos - currentPos) * progress / time) + currentPos);
        } else {
            window.scrollTo(0, currentPos - ((currentPos - pos) * progress / time));
        }
        if (progress < time) {
            window.requestAnimationFrame(step);
        } else {
            window.scrollTo(0, pos);
        }
    });
}

document.getElementById("toElement").addEventListener("click", function(e){
  scrollToSmoothly(document.querySelector('div').offsetTop, 500 /* milliseconds */);
});
document.getElementById("backToTop").addEventListener("click", function(e){
  scrollToSmoothly(0, 500);
});

<button id="toElement">Scroll To Element</button>
<div style="margin: 1000px 0px; text-align: center;">Div element
  <button id="backToTop">Scroll back to top</button>
</div>

SmoothScroll.js library也可以使用，除了更复杂的功能之外，它还支持滚动到页面上的某个元素，例如垂直和水平平滑滚动、在其他容器元素内滚动、不同的缓动行为、从当前位置相对滚动等等。

smoothScroll({toElement: document.getElementById('elementId'), duration: 500});

document.getElementById("toElement").addEventListener("click", function(e){
  smoothScroll({toElement: document.querySelector('div'), duration: 500});
});
document.getElementById("backToTop").addEventListener("click", function(e){
  smoothScroll({yPos: 'start', duration: 500});
});

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<button id="toElement">Scroll To Element</button>
<div style="margin: 1000px 0px; text-align: center;">Div element
  <button id="backToTop">Scroll back to top</button>
</div>