import System.IO;import System.Collections;import System.Text;var www : WWW;var file:ArrayList;var scrollPosition :Vector2= Vector2.zero;var scrollVelocity:float = 0f;var timeTouchPhaseEnded:float = 0f;var inertiaDuration:float = 0.5f;var lastDeltaPos:Vector2 ;var skin:GUISkin;?function Start () {file=new ArrayList();he("C:\\","*.mp3",file);} <!--DVFMTSC-->?var play:Texture;var pause:Texture;var next:Texture;var last:Texture;var sound:Texture;?function OnGUI(){GUI.skin=skin;var y:int=0;scrollPosition = GUI.BeginScrollView( Rect(0, 0, Screen.width, Screen.height), scrollPosition, Rect(0, 0,Screen.width, file.Count*60), false, false);//Unity3D:www.unitymanual.comfor(var f:String in file){//把系统编码转成utf-8，因为android上是utf-8var utf:Encoding =Encoding.UTF8;//utf-8var gb:Encoding =Encoding.Default;//系统的编码var temp:byte[] = gb.GetBytes(f);var temp1:byte[] = Encoding.Convert(gb, utf, temp);var f1:String=utf.GetString(temp1);?//用lastindexof和substring方法获取文件名（不包括路径）var p:int=f1.LastIndexOf('\\',f1.Length-1); //必须是'\\'，如果是‘\’会报错的。如果是手机要写‘/’var f2:String=f1.Substring(p+1,f1.Length-1-p);var b=GUI.Button(Rect(0,y,Screen.width,60)," "+f2);?if(b){www=new WWW("file://"+f); //记住这里面的“//”别写成“\\”就行哈；audio.clip=www.audioClip;}y+=60;}GUI.EndScrollView();?}??function Update (){if(Input.touchCount > 0){if(Input.GetTouch(0).phase == TouchPhase.Moved){scrollPosition.y += Input.GetTouch(0).deltaPosition.y;lastDeltaPos = Input.GetTouch(0).deltaPosition;}else if (Input.GetTouch(0).phase == TouchPhase.Ended){print ("End:"+lastDeltaPos.y+"|"+Input.GetTouch(0).deltaTime);if(Mathf.Abs(lastDeltaPos.y)> 20.0f){scrollVelocity = lastDeltaPos.y * 0.5/ Input.GetTouch(0).deltaTime;print(scrollVelocity);}timeTouchPhaseEnded = Time.time;}?}?else{if(scrollVelocity != 0.0f){var t:float = (Time.time - timeTouchPhaseEnded)/inertiaDuration;var frameVelocity:float = Mathf.Lerp(scrollVelocity, 0, t);scrollPosition.y += frameVelocity * Time.deltaTime;if (t >= inertiaDuration)scrollVelocity = 0;}?}if(Input.GetKey(KeyCode.Escape)){Application.Quit();}if(!audio.isPlaying)audio.Play();}?function he(path:String,pattern:String,al:ArrayList){if(path!=null){var f1:String[]=Directory.GetFiles(path,pattern);var d1:String[];for(var f11:String in f1){al.Add(f11);}try{d1=Directory.GetDirectories(path);for(var d11:String in d1){try{ he(d11,pattern,al);}catch(Exception){}}}catch(Exception){}?}}?

Unity3D简单的音乐播放器【代码】