mirror of
https://gitee.com/huangge1199_admin/vue-pro.git
synced 2024-11-27 09:41:58 +08:00
29 lines
1.2 KiB
JavaScript
29 lines
1.2 KiB
JavaScript
|
// 引入bindingx，此库类似于微信小程序wxs，目的是让js运行在视图层，减少视图层和逻辑层的通信折损
|
|||
|
|
const BindingX = uni.requireNativePlugin('bindingx')
|
|||
|
|
|
|||
|
|
export default {
|
|||
|
|
methods: {
|
|||
|
|
// 此处不写注释，请自行体会
|
|||
|
|
nvueScrollHandler(e) {
|
|||
|
|
const anchor = this.$refs['u-scroll-list__scroll-view'].ref
|
|||
|
|
const element = this.$refs['u-scroll-list__indicator__line__bar'].ref
|
|||
|
|
const scrollLeft = e.contentOffset.x
|
|||
|
|
const contentSize = e.contentSize.width
|
|||
|
|
const { scrollWidth } = this
|
|||
|
|
const barAllMoveWidth = this.indicatorWidth - this.indicatorBarWidth
|
|||
|
|
// 在安卓和iOS上，需要除的倍数不一样，iOS需要除以2
|
|||
|
|
const actionNum = uni.$u.os() === 'ios' ? 2 : 1
|
|||
|
|
const expression = `(x / ${actionNum}) / ${contentSize - scrollWidth} * ${barAllMoveWidth}`
|
|||
|
|
BindingX.bind({
|
|||
|
|
anchor,
|
|||
|
|
eventType: 'scroll',
|
|||
|
|
props: [{
|
|||
|
|
element,
|
|||
|
|
property: 'transform.translateX',
|
|||
|
|
expression
|
|||
|
|
}]
|
|||
|
|
})
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
}
|