基础内容

必要插件安装
缓动曲线和动画基础
ElementFolder，Track与其次级模块，PathNode重构

Assets/I2/Localization/Scripts/Utils/SetLanguageDropdown.cs

@@ -0,0 +1,43 @@
+using UnityEngine;
+using UnityEngine.UI;
+
+namespace I2.Loc
+{
+	[AddComponentMenu("I2/Localization/SetLanguage Dropdown")]
+	public class SetLanguageDropdown : MonoBehaviour 
+	{
+        #if UNITY_5_2 || UNITY_5_3 || UNITY_5_4_OR_NEWER
+        void OnEnable()
+		{
+			var dropdown = GetComponent<Dropdown>();
+			if (dropdown==null)
+				return;
+
+			var currentLanguage = LocalizationManager.CurrentLanguage;
+			if (LocalizationManager.Sources.Count==0) LocalizationManager.UpdateSources();
+			var languages = LocalizationManager.GetAllLanguages();
+
+			// Fill the dropdown elements
+			dropdown.ClearOptions();
+			dropdown.AddOptions( languages );
+
+			dropdown.value = languages.IndexOf( currentLanguage );
+			dropdown.onValueChanged.RemoveListener( OnValueChanged );
+			dropdown.onValueChanged.AddListener( OnValueChanged );
+		}
+
+		
+		void OnValueChanged( int index )
+		{
+			var dropdown = GetComponent<Dropdown>();
+			if (index<0)
+			{
+				index = 0;
+				dropdown.value = index;
+			}
+
+			LocalizationManager.CurrentLanguage = dropdown.options[index].text;
+        }
+        #endif
+    }
+}