2026-01-16 16:02:18 +08:00
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# PageContainer 组件使用手册
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## 概述
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2026-03-19 14:07:25 +08:00
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PageContainer 是一个基于 TDesign `t-navbar` 封装的页面容器组件,提供统一的导航栏与内容区域布局。组件内部已引入 `t-navbar`,并通过样式变量透传导航栏与容器背景配置,适用于需要自定义导航栏的页面。
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2026-01-16 16:02:18 +08:00
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## 功能特性
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- 基于 TDesign Navbar 组件,样式统一美观
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- 根据页面栈深度与属性配置,自动计算返回按钮显示
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- 支持安全区域适配(顶部安全区由 `t-navbar` 处理,底部安全区由容器处理)
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- 支持固定导航栏和占位符
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- 支持自定义导航栏样式(背景色、文本颜色)
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- 支持自定义内容区域背景色
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- 提供多个插槽支持自定义导航栏内容与页面内容
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- 支持返回事件回调
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## 引入组件
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在页面的 `json` 配置文件中引入组件:
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```json
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{
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"usingComponents": {
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"page-container": "../../components/page-container/page-container"
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}
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}
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```
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## 基础用法
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### 最简单的用法
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```xml
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<page-container nav-bar-title="页面标题">
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<view>页面内容</view>
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</page-container>
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```
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### 自定义导航栏样式
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```xml
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<page-container
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nav-bar-title="页面标题"
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nav-bar-background-color="#123321"
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nav-bar-text-color="#ffffff"
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>
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2026-01-16 16:02:18 +08:00
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<view>页面内容</view>
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</page-container>
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```
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### 隐藏返回按钮
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```xml
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<page-container nav-bar-title="页面标题" nav-bar-left-arrow="{{false}}">
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2026-01-16 16:02:18 +08:00
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<view>页面内容</view>
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</page-container>
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```
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### 隐藏导航栏
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```xml
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<page-container nav-bar-title="页面标题" nav-bar-visible="{{false}}">
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<view>页面内容</view>
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</page-container>
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```
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2026-03-19 14:07:25 +08:00
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### 关闭底部安全区适配
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```xml
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<page-container
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nav-bar-title="页面标题"
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container-safe-area-inset-bottom="{{false}}"
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>
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<view>页面内容</view>
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</page-container>
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```
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## 样式与主题
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### 容器背景色
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组件通过样式变量 `--pg-container-bg-color` 设置容器背景色,对应属性 `containerBackgroundColor`。
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### 导航栏颜色
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组件通过 `t-navbar` 的样式变量设置导航栏颜色:
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- `--td-navbar-bg-color`:对应 `navBarBackgroundColor`
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- `--td-navbar-color`:对应 `navBarTextColor`
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2026-01-16 16:02:18 +08:00
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## 属性说明
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### 导航栏相关
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| 属性名 | 类型 | 默认值 | 说明 |
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|--------|------|--------|------|
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| navBarTitle | String | '' | 导航栏标题 |
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| navBarLeftArrow | Boolean | true | 是否显示返回按钮 |
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| navBarFixed | Boolean | true | 导航栏是否固定 |
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| navBarPlaceholder | Boolean | true | 导航栏占位 |
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| navBarSafeAreaInsetTop | Boolean | true | 是否适配安全区域顶部 |
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| navBarZIndex | Number | 10000 | 导航栏层级 |
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| navBarAnimation | Boolean | true | 是否带动画效果 |
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| navBarTitleMaxLength | Number | undefined | 标题最大长度,超出用 "…" 表示 |
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| navBarVisible | Boolean | true | 是否显示导航栏 |
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| navBarBackgroundColor | String | '#ffffff' | 导航栏背景色 |
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| navBarTextColor | String | '#000000' | 导航栏文本颜色(标题、返回按钮等) |
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### 内容容器相关
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| 属性名 | 类型 | 默认值 | 说明 |
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|--------|------|--------|------|
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| containerSafeAreaInsetBottom | Boolean | true | 是否开启底部安全区适配 |
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| containerBackgroundColor | String | '#f5f5f5' | 内容区域背景色 |
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## 插槽说明
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2026-03-19 14:07:25 +08:00
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组件提供导航栏插槽与默认插槽,用于自定义页面内容布局。
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### 默认插槽
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默认插槽用于渲染页面主体内容(位于内容区域 `page-container__content` 内):
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```xml
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<page-container nav-bar-title="页面标题">
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<view>页面内容</view>
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</page-container>
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```
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### left 插槽
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自定义左侧内容(返回按钮区域):
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```xml
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<page-container nav-bar-title="页面标题">
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<view slot="left">自定义左侧内容</view>
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<view>页面内容</view>
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</page-container>
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```
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### capsule 插槽
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自定义胶囊区域内容:
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```xml
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<page-container nav-bar-title="页面标题">
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<view slot="capsule">自定义胶囊内容</view>
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<view>页面内容</view>
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</page-container>
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```
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### title 插槽
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自定义标题区域内容:
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```xml
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<page-container nav-bar-title="页面标题">
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<view slot="title">自定义标题内容</view>
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<view>页面内容</view>
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</page-container>
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```
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## 事件说明
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| 事件名 | 说明 | 回调参数 |
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|--------|------|----------|
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| success | `wx.navigateBack` 成功时触发 | `event.detail`(navigateBack 成功回调参数) |
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| fail | `wx.navigateBack` 失败时触发 | `event.detail`(navigateBack 失败回调参数) |
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| complete | `wx.navigateBack` 完成时触发(无论成功或失败) | `event.detail`(success/fail 的参数之一) |
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### 事件使用示例
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```xml
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<page-container
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nav-bar-title="页面标题"
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bind:success="onBackSuccess"
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bind:fail="onBackFail"
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bind:complete="onBackComplete"
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>
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<view>页面内容</view>
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</page-container>
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```
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```typescript
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Page({
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onBackSuccess(res) {
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console.log('返回成功', res)
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},
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onBackFail(err) {
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console.log('返回失败', err)
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},
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onBackComplete(res) {
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console.log('返回完成', res)
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},
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})
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```
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## 返回按钮显示逻辑
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2026-03-19 14:07:25 +08:00
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组件在实例进入页面节点树时,根据以下条件计算返回按钮是否显示:
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```text
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showLeftArrow = getCurrentPages().length > 1 && navBarLeftArrow && navBarVisible
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```
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## 注意事项
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2026-03-19 14:07:25 +08:00
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1. 组件内部依赖 TDesign 的 `t-navbar`(组件自身已在 `usingComponents` 中引入),确保项目已正确集成 `tdesign-miniprogram`
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2. 使用组件时,建议在页面的 `json` 配置中关闭原生导航栏:
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```json
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{
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"navigationStyle": "custom"
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}
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```
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3. 组件会自动处理返回按钮的显示逻辑,无需手动判断页面栈
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4. 如需自定义返回行为,可以通过监听 `success`、`fail`、`complete` 事件来实现
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## 完整示例
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```xml
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<!-- pages/example/index.wxml -->
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<page-container
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nav-bar-title="示例页面"
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nav-bar-background-color="#ffffff"
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nav-bar-text-color="#000000"
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nav-bar-left-arrow="{{true}}"
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nav-bar-fixed="{{true}}"
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nav-bar-placeholder="{{true}}"
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nav-bar-safe-area-inset-top="{{true}}"
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container-background-color="#f5f5f5"
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container-safe-area-inset-bottom="{{true}}"
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bind:success="onBackSuccess"
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bind:fail="onBackFail"
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bind:complete="onBackComplete"
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>
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<view class="content">
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<view>这是页面内容区域</view>
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</view>
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</page-container>
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```
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```json
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// pages/example/index.json
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{
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"navigationStyle": "custom",
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"usingComponents": {
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"page-container": "../../components/page-container/page-container"
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}
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}
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```
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```typescript
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// pages/example/index.ts
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Page({
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onBackSuccess(res) {
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console.log('页面返回成功', res)
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},
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onBackFail(err) {
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|
|
|
|
console.log('页面返回失败', err)
|
|
|
|
|
|
},
|
|
|
|
|
|
onBackComplete(res) {
|
|
|
|
|
|
console.log('页面返回完成', res)
|
|
|
|
|
|
},
|
2026-01-16 16:02:18 +08:00
|
|
|
|
})
|
|
|
|
|
|
```
|