feat: add support for xiaomi miui

android/src/main/java/com/babisoft/ReactNativeLocalization/ReactNativeLocalization.java

@@ -1,16 +1,26 @@
 package com.babisoft.ReactNativeLocalization;
 
+
+import android.annotation.SuppressLint;
+
 import android.content.Context;
 import android.content.SharedPreferences;
 
+import android.text.TextUtils;
+
+import androidx.annotation.NonNull;
+
 import com.facebook.react.bridge.Callback;
 import com.facebook.react.bridge.ReactApplicationContext;
 import com.facebook.react.bridge.ReactContextBaseJavaModule;
 import com.facebook.react.bridge.ReactMethod;
 
+import java.lang.reflect.Method;
+
 import java.util.HashMap;
 import java.util.Locale;
 import java.util.Map;
+import java.util.Objects;
 
 /**
  * Created by stefano on 20/09/15.
@@ -31,6 +41,41 @@ public String getName() {
         return "ReactLocalization";
     }
 
+    private @NonNull String getSystemProperty(String key) {
+        try {
+            @SuppressLint("PrivateApi")
+            Class<?> systemProperties = Class.forName("android.os.SystemProperties");
+            Method get = systemProperties.getMethod("get", String.class);
+            return (String) Objects.requireNonNull(get.invoke(systemProperties, key));
+        } catch (Exception ignored) {
+            return "";
+        }
+    }
+
+    private @NonNull String getCountryCode(@NonNull Locale locale) {
+        try {
+            String country = locale.getCountry();
+
+            if (country.equals("419")) {
+                return "UN";
+            }
+
+            return TextUtils.isEmpty(country) ? "" : country;
+        } catch (Exception ignored) {
+            return "";
+        }
+    }
+
+    private @NonNull String getRegionCode(@NonNull Locale locale) {
+        String miuiRegion = getSystemProperty("ro.miui.region");
+
+        if (!TextUtils.isEmpty(miuiRegion)) {
+            return miuiRegion;
+        }
+
+        return getCountryCode(locale);
+    }    
+
     /**
      * Return the current language
      *
@@ -45,7 +90,7 @@ private String getCurrentLanguage() {
         }
 
         Locale current = getReactApplicationContext().getResources().getConfiguration().locale;
-        return current.getLanguage() + "-" + current.getCountry();
+        return current.getLanguage() + "-" + getRegionCode(current);
     }
 
 
@@ -87,4 +132,4 @@ private SharedPreferences getPreferences() {
     private SharedPreferences.Editor getEditor() {
         return getPreferences().edit();
     }
-}
+}