react-native-font-sim

Font SimSun(宋体), SimHei(黑体) and KaiTi(楷体), can work with <Text/> or <GCanvasView/> or react-native-font-picker.

Installation

npm install react-native-font-sim
npx react-native-asset -a ./node_modules/react-native-font-sim/fonts

optional:

cd android/app/src/main/assets/fonts/
rm SimSun.ttf SimHei.ttf KaiTi.ttf
ln -s ../../../../../../node_modules/react-native-font-sim/fonts/* ./
cd -

If use ln -s above optional, run react-native-asset next time will got error, then need manually cp them before run react-native-asset.

PS: The same steps can also install ttf files in e.g. react-native-vector-icons.

Usage

<Text/>

<Text style={{fontFamily: SimSun}}>I'm 宋体.</Text>
<Text style={{fontFamily: SimHei}}>I'm 黑体.</Text>
<Text style={{fontFamily: KaiTi}}>I'm 楷体.</Text>

<GCanvasView/>

import {GCanvasView, registerFont} from '@flyskywhy/react-native-gcanvas';
if (Platform.OS !== 'web') {
  var RNFS = require('react-native-fs');
}
...
if (Platform.OS === 'android') {
  const destFontsPath = `${RNFS.ExternalDirectoryPath}/fonts`;
  if (!(await RNFS.exists(destFontsPath))) {
    await RNFS.mkdir(destFontsPath);
  }
  const dest = `${destFontsPath}/KaiTi.ttf`;
  await RNFS.copyFileAssets('fonts/KaiTi.ttf', dest);
  registerFont(dest);
}

const ctx = this.canvas.getContext('2d');
ctx.font = '50px KaiTi';
ctx.fillText('原生画布NativeCanvas', 20, 100);
...
<GCanvasView
 onCanvasCreate={canvas => this.canvas = canvas}
 style={styles.gcanvas}
/>

as custom fonts of react-native-font-picker

Thus can let e.g. KaiTi be choosed just like times new roman as Font Picker to fillText on @flyskywhy/react-native-gcanvas by react-native-font-picker.

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