1 package host.exp.exponent.utils
2 
3 import android.content.Context
4 import expo.modules.manifests.core.Manifest
5 
6 // must be kept in sync with https://github.com/facebook/react-native/blob/main/ReactAndroid/src/main/java/com/facebook/react/modules/i18nmanager/I18nUtil.java
7 private const val SHARED_PREFS_NAME = "com.facebook.react.modules.i18nmanager.I18nUtil"
8 private const val KEY_FOR_PREFS_ALLOWRTL = "RCTI18nUtil_allowRTL"
9 
10 class ExperienceRTLManager {
11   companion object {
setSupportsRTLnull12     fun setSupportsRTL(context: Context, allowRTL: Boolean) {
13       // These keys are used by React Native here: https://github.com/facebook/react-native/blob/main/React/Modules/RCTI18nUtil.m
14       // We set them before React loads to ensure it gets rendered correctly the first time the app is opened.
15       context
16         .getSharedPreferences(SHARED_PREFS_NAME, Context.MODE_PRIVATE)
17         .edit()
18         .also {
19           it.putBoolean(KEY_FOR_PREFS_ALLOWRTL, allowRTL)
20           it.apply()
21         }
22     }
23 
setSupportsRTLFromManifestnull24     fun setSupportsRTLFromManifest(context: Context, manifest: Manifest) {
25       setSupportsRTL(
26         context,
27         (manifest.getExpoClientConfigRootObject()?.optJSONObject("extra")?.optBoolean("supportsRTL") ?: false)
28       )
29     }
30   }
31 }
32