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94 lines
2.4 KiB
94 lines
2.4 KiB
2 years ago
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Component({
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data: {
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lastY: '',
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translateHeight: 0,
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state: -1,
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scrollTop: 0,
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enablePulldownFresh: false,
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platform: ''
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},
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options: {
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multipleSlots: true
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},
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properties: {
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upperDistance: {
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type: Number,
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value: 80
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}
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},
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ready() {
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this.getSystemInfo()
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},
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methods: {
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/*解决ios下拉页面可以触发，安卓只有上划页面才可以触发 */
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onPageScroll(e) {
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console.log('eonPageScroll', e)
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this.data.scrollTop = e.scrollTop
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this.data.enablePulldownFresh = false
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},
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touchstart(e) {
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console.log('下拉开始', e)
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console.log('this.data.scrollTop', this.data.scrollTop)
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this.data.lastY = e.touches[0].clientY
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if (this.data.scrollTop === 0) {
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this.data.enablePulldownFresh = true
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} else {
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this.data.enablePulldownFresh = false
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}
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},
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touchmove(e) {
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console.log('下拉中', e)
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let clientY = e.touches[0].clientY
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let offset = clientY - this.data.lastY
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if (this.data.scrollTop > 0 || offset < 0) {
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return false
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}
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// this.data.translateHeight = offset
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/*解决ios下拉页面遮挡问题 */
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this.setData({
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// translateHeight:this.data.lastY
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translateHeight: 100
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})
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this.data.state = 1
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if (this.data.enablePulldownFresh) {
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if (this.data.translateHeight > this.data.upperDistance) {
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this.data.state = 2
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}
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this.setData({
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translateHeight: this.data.translateHeight > 100 ? 100 : this.data.translateHeight,
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state: this.data.state
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})
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}
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},
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touchend(e) {
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if (this.data.translateHeight > this.data.upperDistance) {
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if (this.data.enablePulldownFresh) {
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this.setData({
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translateHeight: 100,
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state: 3
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})
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this.triggerEvent('pullDownRefresh')
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return
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}
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this.stopRefresh()
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} else if (this.data.scrollTop <= 0) {
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console.log('停止下来刷新')
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this.stopRefresh()
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}
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},
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stopRefresh() {
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console.log('下拉刷新结束')
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this.setData({
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translateHeight: 0,
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state: -1
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})
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},
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getSystemInfo() {
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const res = wx.getSystemInfoSync()
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console.log('获取手机型号', res)
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this.setData({
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platform: res.platform//android,ios
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})
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}
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}
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})
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