How to add values to app.json for android in expo managed workflow?

user_10468349 0
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I need to add those to Android files:

android:usesCleartextTraffic="true" and <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />

But I'm using managed workflow and I don't know how to add those lines to app.json file.

expo react-native android
3 Answers

So I struggled with this problem for a while now and the only solution I could come up with was setting the minimum sdk version of the android app from 21 to 28. This is not ideal as my application now does not support old android devices, but doing this defaults the usesClearTextTraffic flag to false.

user_116748440

I did this plugin which seems to work:

const { createRunOncePlugin, withAndroidManifest } = require('@expo/config-plugins');

const withAndroidManifestHavingBetterSecuritySettings = config => {
  return withAndroidManifest(config, config => {
    const androidManifest = config.modResults.manifest;
    const mainApplication = androidManifest.application[0];
    if(process.env.CHANNEL !== 'dev') {
    androidManifest.$ = {
      ...androidManifest.$,
      'xmlns:tools': 'http://schemas.android.com/tools',
    };
    mainApplication.$['tools:replace'] = 'android:usesCleartextTraffic';
    mainApplication.$['android:usesCleartextTraffic'] = 'false';
  }

    return config;
  });
};

module.exports = createRunOncePlugin(
  withAndroidManifestHavingBetterSecuritySettings,
  'withAndroidManifestHavingBetterSecuritySettings',
  '1.0.0'
);

I had many issues related to merging of AndroidManifest files when "developmentClient": true in my eas.json file (related to me dev eas profile). I believe that it's related to the fact that the debug/AndroidManifest is a higher priority manifest than main/AndroidManifest (not sure though). So my solution was not to ignore the changes when building the dev profile. Hardening security settings in development builds do not seem useful anyhow.

user_148792530

You should update your app.json like that:

"android": {
      "usesCleartextTraffic": true,
       uses-permission android:name
    },
user_190762660
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