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fix(Calendar): render error when using rem unit (#7037)

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neverland 2020-08-22 16:11:08 +08:00 committed by GitHub
parent f89f939377
commit a0c10adbae
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1 changed files with 8 additions and 1 deletions
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9
src/calendar/index.js
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@ -258,8 +258,15 @@ export default createComponent({
let height = 0;
let currentMonth;
// add offset to avoid rem accuracy issues
// see: https://github.com/youzan/vant/issues/6929
const viewportOffset = 50;
const viewportTop = top - viewportOffset;
const viewportBottom = bottom + viewportOffset;
for (let i = 0; i < months.length; i++) {
const visible = height <= bottom && height + heights[i] >= top;
const visible =
height <= viewportBottom && height + heights[i] >= viewportTop;
if (visible && !currentMonth) {
currentMonth = months[i];