在ReactNative中使用Typescript

1.全局安装create-react-native-app

yarn global add create-react-native-app

2.创建项目

create-react-native-app projectname(你的项目名字)

3.项目跟目录创建依赖

yarn add typescript tslint -D
yarn add @types/react @types/react-native @types/react-dom -D

4.安装其他依赖

yarn add concurrently rimraf -D
yarn add ts-jest @types/jest @types/react-test-renderer -D

5.在你的项目根目录下创建一个tsconfig.json文件,将以下代码复制进去即可

{
    "compilerOptions": {
        "module":"es2015",
        "target": "es2015",
        "jsx": "react",
        "rootDir": "src",
        "outDir": "build",
        "allowSyntheticDefaultImports": true,
        "noImplicitAny": true,
        "sourceMap": true,
        "experimentalDecorators": true,
        "preserveConstEnums": true,
        "allowJs": true,
        "noUnusedLocals": true,
        "noUnusedParameters": true,
        "noImplicitReturns": true,
        "skipLibCheck": true,
        "moduleResolution":"Node"
    },
    "filesGlob": [
        "typings/index.d.ts",
        "src/**/*.ts",
        "src/**/*.tsx",
        "node_modules/typescript/lib/lib.es6.d.ts"
    ],
    "types": [
      "react",
      "react-dom",
      "react-native"
    ],
    "exclude":[
        "build", 
        "node_modules",
        "jest.config.js",
        "App.js"
        
    ],
    "compileOnSave": false
}

6.安装react-native-scripts

yarn add react-native-scripts

7.将package.json中的"scripts"配置清空，并将以下代码替换

"scripts": {
    "start": "react-native-scripts start",
    "eject": "react-native-scripts eject",
    "android": "react-native-scripts android",
    "ios": "react-native-scripts ios",
    "test": "node node_modules/jest/bin/jest.js",
    "lint": "tslint src/**/*.ts",
    "tsc": "tsc",
    "clean": "rimraf build",
    "build": "yarn run clean && yarn run tsc --",
    "watch": "yarn run build -- -w",
    "watchAndRunAndroid": "concurrently \"yarn run watch\" \"yarn run android\"",
    "buildRunAndroid": "yarn run build && yarn run watchAndRunAndroid ",
    "watchAndRunIOS": "concurrently \"yarn run watch\" \"yarn run ios\"",
    "buildRunIOS": "yarn run build && yarn run watchAndRunIOS ",
    "watchAndStart": "concurrently \"yarn run watch\" \"yarn run start\"",
    "buildAndStart": "yarn run build && yarn run watchAndStart "
  }