System language list

Author: Aaron8052

Plugins/CS/Device.cs

@@ -18,6 +18,7 @@ public static class Device
         [DllImport("__Internal")] static extern void Device_PlayHaptics(int style, float intensity);
         [DllImport("__Internal")] static extern string Device_GetLocaleISOCode();
         [DllImport("__Internal")] static extern string Device_GetLanguageISOCode();
+        //[DllImport("__Internal")] static extern unsafe char** Device_GetLanguageCodes(ref long count);
 
         /// <summary>
         /// 获取系统版本
@@ -123,9 +124,29 @@ public static void PlayHaptics(UIImpactFeedbackStyle style, float intensity)
         public static string GetLocaleISOCode() => Device_GetLocaleISOCode();
 
         /// <summary>
-        /// 获取当前设备语言的ISO码（例：zh-Hans-CN）
+        /// 获取用户系统设置的主要语言的IETF标签（例：zh-Hans-CN）
+        /// <para>格式：[language]-[Script]-[REGION]_[sort order]</para>
         /// </summary>
-        /// <returns>语言ISO码</returns>
+        /// <returns>语言IETF标签</returns>
         public static string GetLanguageISOCode() => Device_GetLanguageISOCode();
+
+        /*/// <summary>
+        /// 获取用户系统设置的所有语言的IETF标签（例：zh-Hans-CN）
+        /// </summary>
+        /// <returns>语言IETF标签数组，按用户语言优先级排列</returns>*/
+        /*public static unsafe string[] GetLanguageCodes()
+        {
+            long count = 0;
+            char** languages = Device_GetLanguageCodes(ref count);
+            if (languages == null || count < 1)
+                return null;
+            string[] arr = new string[count];
+            for (int i = 0; i < count; i++)
+            {
+                arr[i] = Utils.StrFromPtr(languages[i]);
+            }
+            Utils.FreePtr(languages);
+            return arr;
+        }*/
     }
 }

Plugins/CS/Utils.cs

@@ -1,7 +1,32 @@
 using System;
+using System.Runtime.InteropServices;
 
 namespace iOSNativePlugin
 {
+    public static class Utils
+    {
+        [DllImport("__Internal")] static extern unsafe void FreeCPtr(void* ptr);
+
+        public static unsafe void FreePtr(IntPtr ptr) => FreeCPtr(ptr.ToPointer());
+
+        public static unsafe void FreePtr(void* ptr) => FreeCPtr(ptr);
+
+        public static unsafe string StrFromPtr(char* ptr)
+        {
+            if (ptr == null)
+                return string.Empty;
+            return new string(ptr);
+        }
+
+        public static unsafe string PtrToStr(char* ptr)
+        {
+            var str = StrFromPtr(ptr);
+            FreePtr(ptr);
+            return str;
+        }
+    }
+
+
     delegate void SaveImageToAlbumCallback(bool saved);
     delegate void DialogSelectionCallback(int selection);
     delegate void ShareCloseCallback();

Plugins/Native/Headers/Device.h

@@ -9,6 +9,7 @@
 +(void)PlayHaptics:(int)style _intensity:(float)intensity;
 +(NSString *)GetLocaleISOCode;
 +(NSString *)GetLanguageISOCode;
++(NSArray<NSString*>*)GetLanguageISOCodes;
 
 @end
 
@@ -40,4 +41,15 @@ extern "C"
     const char* Device_GetLanguageISOCode(){
         return StringCopy([[Device GetLanguageISOCode] UTF8String]);
     }
+    char** Device_GetLanguageCodes(long* count)
+    {
+        auto array = [Device GetLanguageISOCodes];
+        *count = array.count;
+        char** languages = (char**)malloc(sizeof(char*) * array.count);
+        for (long i = 0; i < *count; i++)
+        {
+            languages[i] = StringCopy([array[i] UTF8String]);
+        }
+        return languages;
+    }
 }

Plugins/Native/Implementations/Device.mm

@@ -83,4 +83,8 @@ +(NSString *)GetLanguageISOCode
     NSString *lang = [NSLocale preferredLanguages].firstObject;
     return lang;
 }
++(NSArray<NSString*>*)GetLanguageISOCodes
+{
+    return [NSLocale preferredLanguages];
+}
 @end

Plugins/Native/Utils.mm

@@ -22,6 +22,12 @@ static void LOG(NSString* log){
     return newString;
 }
 
+extern "C" void FreeCPtr(void* ptr)
+{
+    free(ptr);
+}
+
+
 static NSDate* DateFromLong(long year, long month, long day, long hour, long minute, long second)
 {
     NSDateComponents *components = [[NSDateComponents alloc] init];

iOSNativePlugin.asmdef

@@ -7,7 +7,7 @@
         "iOS"
     ],
     "excludePlatforms": [],
-    "allowUnsafeCode": false,
+    "allowUnsafeCode": true,
     "overrideReferences": false,
     "precompiledReferences": [],
     "autoReferenced": true,