简体中文
简体中文
# getCurrentPages()
getCurrentPages() 函数用于获取当前页面栈的实例，以数组形式按栈的顺序给出，数组中的元素为页面实例，第一个元素为首页，最后一个元素为当前页面。
HBuilderX 4.31+，强化了页面对象，新增了UniPage对象。getCurrentPages()返回值改为UniPage对象数组。
UniPage对象强化了开发者对页面的管理功能，并且支持在uts插件中使用。
getCurrentPages()获取的是主页面栈，不能直接获取dialogPage页面。拿到主页面UniPage对象后，可以再通过getDialogPages()方法获取这个主页面的子弹窗页面栈。
选项式的vue中通过this.$page，是另一种快速获取当前页面对象的方式。它得到的不是一个页面数组，而是一个具体的当前页面。并且这种方式支持主页面，也支持dialogPage。组合式写法见下
# getCurrentPages 兼容性
| Web | 微信小程序 | Android | iOS | iOS uni-app x UTS 插件 | HarmonyOS |
|---|---|---|---|---|---|
| 4.0 | 4.41 | 3.9 | 4.11 | 4.31 | 4.61 |
# 返回值
| 类型 |
|---|
| Array<UniPage> |
getCurrentPages()返回了UniPage对象数组。
每个页面是一个UniPage对象，这个对象上有较多方法，比如获取/修改pageStyle、获取高宽和安全区等。详见
# 示例
示例为hello uni-app x alpha分支，与最新HBuilderX Alpha版同步。与最新正式版同步的master分支示例另见
示例
<template>
<!-- #ifdef APP -->
<scroll-view class="page-scroll-view">
<!-- #endif -->
<view>
<page-head title="getCurrentPages"></page-head>
<view class="uni-padding-wrap">
<button @click="_getCurrentPages">getCurrentPages</button>
<view v-if="pages.length" style="padding: 15px 0px">
<text>当前页面栈中 {{ pages.length }} 个页面，列表如下：</text>
<template v-for="(page, index) in pages" :key="page.route">
<text style="margin-top: 5px">index: {{ index }}, route: {{ page.route }}</text>
</template>
</view>
<!-- #ifndef MP -->
<button class="uni-common-mt" @click="check$page">check $page</button>
<button class="uni-common-mt" @click="checkGetParentPage">
check getParentPage
</button>
<button class="uni-common-mt" @click="checkGetDialogPages">
check getDialogPages
</button>
<button id="check-get-element-by-id-btn" class="uni-common-mt" @click="checkGetElementById">
check getElementById
</button>
<button class="uni-common-mt" @click="checkGetAndroidView">
check getAndroidView
</button>
<button class="uni-common-mt" @click="checkGetIOSView">
check getIOSView
</button>
<button class="uni-common-mt" @click="checkGetHTMLElement">
check getHTMLElement
</button>
<!-- #endif -->
<!-- #ifdef APP-ANDROID -->
<button class="uni-common-mt" @click="checkGetAndroidActivity">
check getAndroidActivity
</button>
<!-- #endif -->
</view>
<!-- #ifndef MP -->
<page-head title="currentPageStyle"></page-head>
<template v-for="(item, index) in PageStyleArray">
<view class="page-style-item" v-if="currentPageStyle[item.key] != null" :key="index">
<view class="item-text">
<text class="item-text-key">{{ item.key }}:</text>
<text class="item-text-value">{{
currentPageStyle[item.key]
}}</text>
</view>
<view class="set-value" v-if="item.type == 'boolean'">
<switch :checked="currentPageStyle.getBoolean(item.key)"
@change="switchChange(item.key, $event as UniSwitchChangeEvent)">
</switch>
</view>
<view class="set-value" v-else-if="item.type == 'number'">
<slider :value="currentPageStyle.getNumber(item.key)" :show-value="true"
@change="sliderChange(item.key, $event as UniSliderChangeEvent)" />
</view>
<view class="set-value" v-else-if="item.type == 'string'">
<radio-group class="radio-set-value" @change="radioChange(item.key, $event as RadioGroupChangeEvent)">
<radio class="radio-value" v-for="(item2, index2) in item.value" :key="index2" :value="item2">{{ item2 }}
</radio>
</radio-group>
</view>
</view>
</template>
<!-- #ifndef APP-HARMONY -->
<button style="margin: 10px" @click="goSetDisablePullDownRefresh">
go set disable pullDownRefresh
</button>
<!-- #endif -->
<!-- #endif -->
</view>
<!-- #ifdef APP -->
</scroll-view>
<!-- #endif -->
</template>
<script>
import { PageStyleItem, PageStyleArray } from './page-style.uts';
class Page {
constructor(public route : string) {
}
}
export default {
data() {
return {
checked: false,
pages: [] as Page[],
PageStyleArray: PageStyleArray as PageStyleItem[],
currentPageStyle: {} as UTSJSONObject,
testing: false
}
},
computed: {
pageStyleText() : string {
return JSON.stringify(this.currentPageStyle)
}
},
// #ifndef MP
onLoad() {
this.getPageStyle();
},
// #endif
onReady() {
// #ifdef APP-ANDROID
this.setPageStyle({
'androidThreeButtonNavigationBackgroundColor': 'transparent',
'androidThreeButtonNavigationStyle': 'black'
});
this.getPageStyle();
// #endif
},
onPullDownRefresh() {
setTimeout(() => {
uni.stopPullDownRefresh()
}, 2000)
},
methods: {
startPullDownRefresh() {
uni.startPullDownRefresh()
},
_getCurrentPages: function () {
this.pages.length = 0
const pages = getCurrentPages()
this.pages.push(new Page(pages[0].route))
if (this.pages[0].route.includes('/tabBar/') || this.pages[0].route == '/') {
this.checked = true
}
for (let i = 1; i < pages.length; i++) {
this.pages.push(new Page(pages[i].route))
if (pages[i].route.includes('/tabBar/')) {
this.checked = false
}
}
},
/// get-set-page-style
radioChange(key : string, e : RadioGroupChangeEvent) {
this.setStyleValue(key, e.detail.value);
},
sliderChange(key : string, e : UniSliderChangeEvent) {
this.setStyleValue(key, e.detail.value);
},
switchChange(key : string, e : UniSwitchChangeEvent) {
this.setStyleValue(key, e.detail.value);
},
setStyleValue(key : string, value : any) {
const style = {}
style[key] = value
this.setPageStyle(style)
this.getPageStyle()
},
getPageStyle() : UTSJSONObject {
const pages = getCurrentPages();
const currentPage = pages[pages.length - 1];
this.currentPageStyle = currentPage.getPageStyle()
console.log(this.currentPageStyle)
return this.currentPageStyle;
},
setPageStyle(style : UTSJSONObject) {
console.log('setPageStyle:', style);
const pages = getCurrentPages();
const currentPage = pages[pages.length - 1];
currentPage.setPageStyle(style);
},
goSetDisablePullDownRefresh() {
uni.navigateTo({
url: '/pages/API/get-current-pages/set-page-style-disable-pull-down-refresh'
});
},
getCurrentPage() : UniPage {
const pages = getCurrentPages()
return pages[pages.length - 1]
},
check$page() : boolean {
const page = this.getCurrentPage()
let res = this.$page === page
if (this.testing && res) {
res = page.options['test'] == '123'
if (res) {
res = page.route == 'pages/API/get-current-pages/get-current-pages'
}
}
console.log('check $page', res)
uni.showToast(res ? { title: 'check success' } : { title: 'check fail', icon: 'error' })
return res
},
checkGetParentPage() : boolean {
const page = this.getCurrentPage()
const parentPage = page.getParentPage()
const res = parentPage == null
console.log('check getParentPage', res)
uni.showToast(res ? { title: 'check success' } : { title: 'check fail', icon: 'error' })
return res
},
checkGetDialogPages() : boolean {
const page = this.getCurrentPage()
const dialogPages = page.getDialogPages()
const res = Array.isArray(dialogPages) && dialogPages.length == 0
uni.showToast(res ? { title: 'check success' } : { title: 'check fail', icon: 'error' })
console.log('check getDialogPages', res)
return res
},
checkGetElementById() : boolean {
const page = this.getCurrentPage()
const element = page.getElementById('check-get-element-by-id-btn')
let res = element != null
// #ifndef APP-ANDROID
if (res) {
const elPage = element!.getPage()
console.log('elPage', elPage)
res = elPage === page
}
// #endif
console.log('check getElementById', res)
uni.showToast(res ? { title: 'check success' } : { title: 'check fail', icon: 'error' })
return res
},
checkGetAndroidView() : boolean {
const page = this.getCurrentPage()
const androidView = page.getAndroidView()
const res = androidView != null
console.log('check getAndroidView', res)
uni.showToast(res ? { title: 'check success' } : { title: 'check fail', icon: 'error' })
return res
},
checkGetIOSView() : boolean {
const page = this.getCurrentPage()
const IOSView = page.getIOSView()
const res = IOSView != null
console.log('check getIOSView', res)
uni.showToast(res ? { title: 'check success' } : { title: '仅 IOS uts 插件环境支持', icon: 'error' })
return res
},
checkGetHTMLElement() : boolean {
const page = this.getCurrentPage()
const HTMLView = page.getHTMLElement()
const res = HTMLView != null
console.log('check getHTMLElement', res)
uni.showToast(res ? { title: 'check success' } : { title: 'check fail', icon: 'error' })
return res
},
checkGetAndroidActivity() : boolean {
const page = this.getCurrentPage()
const activity = page.getAndroidActivity()
const res = activity != null
console.log('check getAndroidActivity', res)
uni.showToast(res ? { title: 'check success' } : { title: 'check getAndroidActivity', icon: 'error' })
return res
}
},
}
</script>
<style>
.page {
flex: 1;
padding: 10px;
}
.page-style {
margin-top: 15px;
}
.page-style-item {
padding: 10px;
margin-top: 10px;
background-color: #ffffff;
border-radius: 5px;
}
.item-text {
flex-direction: row;
}
.item-text-key {
font-weight: bold;
}
.item-text-value {
margin-left: 5px;
}
.set-value {
margin-top: 10px;
}
.radio-set-value {
flex-direction: row;
}
.radio-value {
margin-left: 10px;
}
</style>
# 参见
# 通用类型
# GeneralCallbackResult
| 名称 | 类型 | 必备 | 默认值 | 兼容性 | 描述 |
|---|---|---|---|---|---|
| errMsg | string | 是 | - | 错误信息 |
# 直接获取当前页面的UniPage
4.32新增选项式通过this.$page获取当前UniPage实例, 组合式通过getCurrentInstance，代码示例：
// 选项式 API
const dialogPage = this.$page
// 组合式 API
const currentInstance = getCurrentInstance()
const dialogPage = instance?.proxy?.$page
