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小程序bug 真机上只能移动一次，就卡死不能拖动 #360

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小程序bug 真机上只能移动一次，就卡死不能拖动 #360

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12 changes: 9 additions & 3 deletions dist/wxcharts.js
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Original file line number Diff line number Diff line change
Expand Up @@ -1960,7 +1960,7 @@ Charts.prototype.addEventListener = function (type, listener) {
};

Charts.prototype.getCurrentDataIndex = function (e) {
var touches = e.touches && e.touches.length ? e.touches : e.changedTouches;
var touches = e.touches && e.touches.length && e.touches[e.touches.length-1].x? e.touches : e.changedTouches;
if (touches && touches.length) {
var _touches$ = touches[0],
x = _touches$.x,
Expand Down Expand Up @@ -2008,14 +2008,20 @@ Charts.prototype.showToolTip = function (e) {

Charts.prototype.scrollStart = function (e) {
if (e.touches[0] && this.opts.enableScroll === true) {
this.scrollOption.startTouchX = e.touches[0].x;
this.scrollOption.startTouchX = e.touches[e.touches.length - 1].x;
}
};

Charts.prototype.scroll = function (e) {
// TODO throtting...
if (e.touches[0] && this.opts.enableScroll === true) {
var _distance = e.touches[0].x - this.scrollOption.startTouchX;
let nowitem = {}
e.touches.forEach(el => {
if (el.x) {
nowitem = el
}
})
var _distance = nowitem.x - this.scrollOption.startTouchX;
var currentOffset = this.scrollOption.currentOffset;

var validDistance = calValidDistance(currentOffset + _distance, this.chartData, this.config, this.opts);
Expand Down