Solve the problem of bindchange event jitter of swiper component of wechat applet

According to the official source To judge swiper Of change What triggers the event ,autoplay It's automatic rotation .touch It is user's manual sliding . The others are unknown problems . Jitter problems are mainly caused by unknown problems , So there are restrictions , Only in automatic rotation and user initiative trigger can we change current value , To avoid jitter bug

//  Wheel planting change event 
swiperChange(e) {
	console.log(e);
	var _this = this;
	var swiperIndex = e.detail.current;
	var source = e.detail.source;
	// console.log(' Carousel events index'+index)
	if(source == 'autoplay' || source == 'touch') {
		_this.setData({
		    swiperIndex : index
		})
	}
},