XPrivacyLua Pro — Override system locale/language — java.util.Location.getDefault()

Locale.getDefault.json

{
  "script": [
    {
      "name": "Privacy.Locale.getDefault",
      "code": "function after(hook, param)\n  local myLocale = luajava.newInstance(\"java.util.Locale\", \"fr\", \"FR\")\n\tparam:setResult(myLocale)\n\treturn true\nend"
    }
  ],
  "definition": [
    {
      "builtin": false,
      "collection": "Privacy",
      "group": "Get.Locale",
      "name": "Locale.getDefault",
      "author": "devnoname120",
      "version": 1,
      "description": "Overrides the system locale for a specific app",
      "className": "java.util.Locale",
      "methodName": "getDefault",
      "parameterTypes": [],
      "returnType": "java.util.Locale",
      "minSdk": 1,
      "maxSdk": 99,
      "minApk": 0,
      "maxApk": 2147483647,
      "enabled": true,
      "optional": false,
      "usage": true,
      "notify": false,
      "luaScript": "@Privacy.Locale.getDefault"
    }
  ]
}

I couldn't find this on the internet so I built a hook for changing the system locale / language of specific apps. I'm overriding java.util.Locale.getDefault() for that purpose.

I hardcoded French (France) inside but you can easily change it, and even make it appear in the XPrivacyLua Pro settings.

It only hooks one method because the app that I needed to target (SNCF Connect) doesn't use the other java.util.Locale methods.