react-native App的原理介绍

在React Native App里,APP为容器,包含多个组件,各组件有state和props属性。props是父级分发属性,state是组件内部管理状态,数据单向向下分发。组件间交互困难,修改state重新渲染页面在复杂场景会卡顿,适合简单APP。

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react-native App中,大体可以理解为:整个APP作为容器,里面存放有多个父组件,子组件,孙子组件,各个组件都含有state和props这两个最重要的属性.

如下图所示:

React 有props和state,props意味着父级分发下来的属性,state意味着组件内部可以自行管理的状态,并且整个React没有数据向上回溯的能力,

也就是说数据只能单向向下分发,或者自行内部消化state的变化会引起页面的刷新.

 

所以组件之间交互就比较困难,当APP中页面较多,页面内组件比较复杂,通过修改state的方式重新渲染页面,就会出现卡到爆炸的效果.

所以这种方式只适合实现一些功能相对单一,页面简介,页面之间交互较少,结构简单的APP.

转载于:https://www.cnblogs.com/fenglh04/p/8528435.html

D:\AwesomeProject>npm ls react AwesomeProject@0.0.1 D:\AwesomeProject +-- @ant-design/icons-react-native@2.3.2 | `-- react@17.0.2 deduped +-- @ant-design/react-native@5.4.2 | +-- @floating-ui/react-native@0.10.7 | | `-- react@17.0.2 deduped | +-- rc-field-form@2.7.0 | | `-- react@17.0.2 deduped | +-- rc-util@5.44.4 | | `-- react@17.0.2 deduped | +-- react-native-collapsible@1.6.2 | | `-- react@17.0.2 deduped | +-- react-native-modal-popover@2.1.3 | | `-- react@17.0.2 deduped | `-- react@17.0.2 deduped +-- @react-native-community/cameraroll@4.1.2 | `-- react@17.0.2 deduped +-- @react-native-community/masked-view@0.1.11 | `-- react@17.0.2 deduped +-- @react-native-community/segmented-control@2.2.2 | `-- react@17.0.2 deduped +-- @react-native-community/slider@3.0.3 | `-- react@17.0.2 deduped +-- @react-native-community/viewpager@4.2.4 | `-- react@17.0.2 deduped +-- @react-native-picker/picker@1.16.8 | `-- react@17.0.2 deduped +-- @react-navigation/native-stack@6.11.0 | +-- @react-navigation/elements@1.3.31 | | `-- react@17.0.2 deduped | `-- react@17.0.2 deduped +-- @react-navigation/native@6.1.18 | +-- @react-navigation/core@6.4.17 | | +-- react@17.0.2 deduped | | `-- use-latest-callback@0.2.4 | | `-- react@17.0.2 deduped invalid: "^16.0.0" from node_modules/react-native-elements/node_modules/react-native-ratings | `-- react@17.0.2 deduped +-- @rneui/base@4.0.0-rc.8 | `-- react-native-ratings@8.1.0 | `-- react@17.0.2 deduped +-- react-native-elements@1.2.7 | `-- react-native-ratings@6.5.0 | `-- react@17.0.2 deduped invalid: "^16.0.0" from node_modules/react-native-elements/node_modules/react-native-ratings +-- react-native-exception-handler@2.10.10 | `-- react@17.0.2 deduped +-- react-native-image-picker@3.8.1 | `-- react@17.0.2 deduped +-- react-native-image-zoom-viewer@3.0.1 | +-- react-native-image-pan-zoom@2.1.12 | | `-- react@17.0.2 deduped invalid: "^16.0.0" from node_modules/react-native-elements/node_modules/react-native-ratings | `-- react@17.0.2 deduped +-- react-native-linear-gradient@2.8.3 | `-- react@17.0.2 deduped +-- react-native-permissions@3.8.0 | `-- react@17.0.2 deduped +-- react-native-reanimated@2.14.4 invalid: ">=3.10.1" from node_modules/@ant-design/react-native | `-- react@17.0.2 deduped +-- react-native-safe-area-context@3.3.2 | `-- react@17.0.2 deduped +-- react-native-screens@3.15.0 | +-- react-freeze@1.0.4 | | `-- react@17.0.2 deduped invalid: "^16.0.0" from node_modules/react-native-elements/node_modules/react-native-ratings | `-- react@17.0.2 deduped +-- react-native-svg-charts@5.4.0 | `-- react@17.0.2 deduped +-- react-native-webview@11.26.1 | `-- react@17.0.2 deduped +-- react-native@0.68.0 | +-- react-shallow-renderer@16.14.1 | | `-- react@17.0.2 deduped invalid: "^16.0.0" from node_modules/react-native-elements/node_modules/react-native-ratings | +-- react@17.0.2 deduped | `-- use-subscription@1.11.0 | +-- react@17.0.2 deduped invalid: "^16.0.0" from node_modules/react-native-elements/node_modules/react-native-ratings | `-- use-sync-external-store@1.5.0 | `-- react@17.0.2 deduped invalid: "^16.0.0" from node_modules/react-native-elements/node_modules/react-native-ratings +-- react-redux@7.2.9 | `-- react@17.0.2 deduped +-- react-test-renderer@17.0.2 | `-- react@17.0.2 deduped `-- react@17.0.2 npm error code ELSPROBLEMS npm error invalid: react@17.0.2 D:\AwesomeProject\node_modules\react npm error A complete log of this run can be found in: C:\Users\临时\AppData\Local\npm-cache\_logs\2025-08-01T01_11_42_653Z-debug-0.log
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