60 lines
1.6 KiB
JavaScript
60 lines
1.6 KiB
JavaScript
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/**
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* 演示页面mixin
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*/
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module.exports = {
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data() {
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return {
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}
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},
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onLoad() {
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// 更新顶部导航栏信息
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this.updateCustomBarInfo()
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},
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methods: {
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// 点击左上角返回按钮时触发事件
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goBack() {
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// 通过判断当前页面的页面栈信息，是否有上一页进行返回，如果没有则跳转到首页
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const pages = getCurrentPages()
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if (pages && pages.length > 0) {
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const firstPage = pages[0]
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if (pages.length == 1 && (!firstPage.route || firstPage.route != 'pages/index/index')) {
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uni.reLaunch({
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url: '/pages/index/index'
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})
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} else {
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uni.navigateBack({
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delta: 1
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})
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}
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} else {
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uni.reLaunch({
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url: '/pages/index/index'
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})
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}
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},
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// 更新顶部导航栏信息
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async updateCustomBarInfo() {
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// 获取vuex中的自定义顶栏的高度
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let customBarHeight = this.vuex_custom_bar_height
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let statusBarHeight = this.vuex_status_bar_height
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// 如果获取失败则重新获取
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if (!customBarHeight) {
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try {
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const navBarInfo = await this.$tn.updateCustomBar()
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customBarHeight = navBarInfo.customBarHeight
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statusBarHeight = navBarInfo.statusBarHeight
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} catch(e) {
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setTimeout(() => {
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this.updateCustomBarInfo()
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}, 10)
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return
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}
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}
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// 更新vuex中的导航栏信息
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this.$tn.vuex('vuex_status_bar_height', statusBarHeight)
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this.$tn.vuex('vuex_custom_bar_height', customBarHeight)
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}
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}
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}
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