natmark
commented
6 years ago Dependencies
- Typescript
- TSLint
- ReactNative CLI
- yarn
$ yarn global add react-native-cliCreating the app
$ react-native init ReactNativeStudy
$ yarn add typescript --dev$ yarn add @types/react @types/react-native @types/jest --dev$ yarn run tsc --inittsconfig.json
{
"compilerOptions": {
/* Basic Options */
"target": "es5", /* Specify ECMAScript target version: 'ES3' (default), 'ES5', 'ES2015', 'ES2016', 'ES2017','ES2018' or 'ESNEXT'. */
"module": "commonjs", /* Specify module code generation: 'none', 'commonjs', 'amd', 'system', 'umd', 'es2015', or 'ESNext'. */
"lib": ["es5","es6","dom"], /* Specify library files to be included in the compilation. */
"allowJs": true, /* Allow javascript files to be compiled. */
// "checkJs": true, /* Report errors in .js files. */
"jsx": "react-native", /* Specify JSX code generation: 'preserve', 'react-native', or 'react'. */
// "declaration": true, /* Generates corresponding '.d.ts' file. */
"sourceMap": true, /* Generates corresponding '.map' file. */
// "outFile": "./", /* Concatenate and emit output to single file. */
"outDir": "./build", /* Redirect output structure to the directory. */
"rootDir": "./src", /* Specify the root directory of input files. Use to control the output directory structure with --outDir. */
"removeComments": false, /* Do not emit comments to output. */
// "noEmit": true, /* Do not emit outputs. */
// "importHelpers": true, /* Import emit helpers from 'tslib'. */
// "downlevelIteration": true, /* Provide full support for iterables in 'for-of', spread, and destructuring when targeting 'ES5' or 'ES3'. */
// "isolatedModules": true, /* Transpile each file as a separate module (similar to 'ts.transpileModule'). */
/* Strict Type-Checking Options */
"strict": true, /* Enable all strict type-checking options. */
"noImplicitAny": true, /* Raise error on expressions and declarations with an implied 'any' type. */
"strictNullChecks": true, /* Enable strict null checks. */
"noImplicitThis": true, /* Raise error on 'this' expressions with an implied 'any' type. */
"alwaysStrict": true, /* Parse in strict mode and emit "use strict" for each source file. */
/* Additional Checks */
// "noUnusedLocals": true, /* Report errors on unused locals. */
// "noUnusedParameters": true, /* Report errors on unused parameters. */
// "noImplicitReturns": true, /* Report error when not all code paths in function return a value. */
// "noFallthroughCasesInSwitch": true, /* Report errors for fallthrough cases in switch statement. */
/* Module Resolution Options */
"moduleResolution": "node", /* Specify module resolution strategy: 'node' (Node.js) or 'classic' (TypeScript pre-1.6). */
// "baseUrl": "./", /* Base directory to resolve non-absolute module names. */
// "paths": {}, /* A series of entries which re-map imports to lookup locations relative to the 'baseUrl'. */
// "rootDirs": [], /* List of root folders whose combined content represents the structure of the project at runtime. */
// "typeRoots": [], /* List of folders to include type definitions from. */
"types": ["react", "react-native"], /* Type declaration files to be included in compilation. */
"allowSyntheticDefaultImports": true /* Allow default imports from modules with no default export. This does not affect code emit, just typechecking. */
/* Source Map Options */
// "sourceRoot": "./", /* Specify the location where debugger should locate TypeScript files instead of source locations. */
// "mapRoot": "./", /* Specify the location where debugger should locate map files instead of generated locations. */
// "inlineSourceMap": true, /* Emit a single file with source maps instead of having a separate file. */
// "inlineSources": true, /* Emit the source alongside the sourcemaps within a single file; requires '--inlineSourceMap' or '--sourceMap' to be set. */
/* Experimental Options */
// "experimentalDecorators": true, /* Enables experimental support for ES7 decorators. */
// "emitDecoratorMetadata": true, /* Enables experimental support for emitting type metadata for decorators. */
},
"include": [
"src/**/*"
],
"exclude": [
"src/__tests__",
"index.js",
"build",
"node_modules"
]
}
$ mkdir src
$ touch src/index.tsx
$ rm App.jsindex.js
import { AppRegistry } from 'react-native'
import App from './build'
AppRegistry.registerComponent('ReactNativeStudy', () => App)index.tsx
import * as React from 'react';
import { StyleSheet, Text, View, Button } from "react-native";
interface Props {
}
interface State {
}
const styles: any = StyleSheet.create({
container: {
flex: 1,
justifyContent: 'center',
alignItems: 'center',
backgroundColor: '#F5FCFF',
},
welcome: {
fontSize: 20,
textAlign: 'center',
margin: 10,
},
instructions: {
textAlign: 'center',
color: '#333333',
marginBottom: 5,
},
});
export default class App extends React.Component<Props, State> {
render() {
return (
<View style={styles.container}>
<Text style={styles.welcome}>
Welcome to React Native
</Text>
<Text style={styles.instructions}>
To get started, edit index.ios.js
</Text>
<Text style={styles.instructions}>
Press Cmd+R to reload, {"\n"}
Cmd+D or shake for dev menu
</Text>
</View>
);
}
}Add Scripts
"scripts": {
"start": "node node_modules/react-native/local-cli/cli.js start",
"android": "node node_modules/react-native/local-cli/cli.js run-android",
"ios": "node node_modules/react-native/local-cli/cli.js run-ios",
"prebuild": "rm -rf build",
"build": "tsc",
"test": "jest"
},Install dependencies:
yarnStart React Native server:
yarn startBuild the source-code with Typescript:
# Build once
yarn run build
# Build and watch for changes
yarn run build -- --watchiOS
yarn run iosAndroid
yarn run androidTesting
This project uses Typescript + Jest. Run the test suite with:
yarn test
参考: https://medium.com/react-weekly/react-native-and-typescript-ad57b7413ead