[add] first

Libraries/com.unity.services.analytics/Runtime/Plugins/iOS/VolumeIOSPlugin.mm

@@ -0,0 +1,8 @@
+#import <Foundation/Foundation.h>
+#import <AVFoundation/AVAudioSession.h>
+
+extern "C" {
+    float unity_services_analytics_get_device_volume() {
+        return [AVAudioSession sharedInstance].outputVolume;
+    }
+}

Libraries/com.unity.services.analytics/Runtime/Plugins/iOS/unity_services_locale.mm

@@ -0,0 +1,20 @@
+#include <stdlib.h>
+#include <string.h>
+
+extern "C" {
+
+  const char *unity_services_current_language_code() {
+      NSLocale *locale = [NSLocale currentLocale];
+      unsigned long len = locale.languageCode.length;
+      char *locale_str = 0;
+      locale_str = (char *)malloc(len + 1);
+      
+      for (unsigned long i = 0; i < len; ++i) {
+          char c = [locale.languageCode characterAtIndex:i];
+          locale_str[i] = c;
+      }
+      locale_str[len] = 0;
+      
+      return locale_str;
+  }
+}