Comments (3)
通过 Tina.Page.define({})
构造的实例可以理解为是 Page({})
实例的一层代理。
而小程序全局方法 getCurrentPages()
返回的是原生 Page({})
构造的实例列表 —— 如果在这些实例上直接执行 setData()
则绕过了 Tina.Page
的代理,虽然最终页面上的数据依旧会发生变化,但新的数据并不会同步到 Tina 的代理实例上。
在不得不使用 getCurrentPages()
的情况下,可以通过挂载在原生实例上的 __tina_instance__
访问 Tina 的代理实例,比如上面的例子:
let pages = getCurrentPages()
let prevPage = pages[pages.length - 2]
- prevPage.setData({
+ prevPage.__tina_instance__.setData({
test: 'some test',
})
from tina.
通常如果需要跨页面修改 / 访问数据,推荐引入全局状态管理器(如 Redux),而避免使用 getCurrentPages()
。
from tina.
v1.5.0 released.
现在你也可以通过 import { getCurrentPages } from '@tinajs/tina
代替全局的 getCurrentPages
API,访问由 Tina Page 构造的当前页面栈。
相关文档:
from tina.
Related Issues (20)
- bug: component 组件中定义的 data 数据对象被共享 HOT 7
- tina 能够支持多页配置? HOT 3
- 自动引入组件需求 HOT 2
- 有没有模板增强计划,比如双向绑定 HOT 2
- webstorm <config> 部块也设置语法高亮
- 原生app的全局组件配置失败 HOT 1
- page 怎么 使用 selectComponent HOT 2
- 请问能不能支持把config放到script标签内部? HOT 3
- eslint 自动格式化问题 HOT 2
- 项目引入 echarts-for-weixin 库,webpack 编译报错 HOT 1
- vscode Vetur插件各种报错 HOT 2
- 请问有没有集成 echarts 的例子 HOT 2
- tinajs 支持引入原生代码的 Components 吗? HOT 7
- 引入图片后报错 HOT 1
- Page缺少getTabBar() HOT 3
- Page缺少getOpenerEventChannel() HOT 1
- 请问一下如果从现有的原生小程序过渡到tina? HOT 1
- 支持快应用吗? HOT 1
- 依赖包中的图片资源不能被编译
- 支持webpack5吗 HOT 2
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