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25 lines
783 B
25 lines
783 B
export const scrollSmoothTo = function (position = 0) {
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// #ifdef H5
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if (!window.requestAnimationFrame) {
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window.requestAnimationFrame = function(callback, element) {
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return setTimeout(callback, 17);
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};
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}
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// 当前滚动高度
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var scrollTop = document.documentElement.scrollTop || document.body.scrollTop;
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// 滚动step方法
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var step = function () {
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// 距离目标滚动距离
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var distance = position - scrollTop;
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// 目标滚动位置
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scrollTop = scrollTop + distance / 5;
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if (Math.abs(distance) < 1) {
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window.scrollTo(0, position);
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} else {
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window.scrollTo(0, scrollTop);
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requestAnimationFrame(step);
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}
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};
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step();
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// #endif
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} |