实现的功能要求：用户在文本框中输入要查询的模型型号(包括模糊搜索)，服务器返回数据，然后客户端解析数据并且动态的生成数据列表，点击列表从服务器端下载打包的assetbundle模型，加载到场景，并且点击其他的，确保场景中每次只显示一个模型，而且该模型能够缩放旋转。
Code：
搜索功能框：
在搜索框中输入，然后向服务器端发送请求，服务器端返回数据，客户端解析数据，做出列表
点击列表之后，会动态加载model
创建在这个Model对象下：
case "开始搜索": //执行查询 searchText = GameObject.Find("Input").GetComponentInChildren<UILabel>().text; print(searchText); if(!string.IsNullOrEmpty(searchText)) { WWWForm formSearch = new WWWForm(); formSearch.AddField("type",searchText); WWW www = new WWW(searchUrl,formSearch); yield return www; if (www.error != null) { Debug.LogError(www.error); } else { print(www.text); if(www.text!="NULL") { if (www.isDone) { int posY = 0; //父物体：panel、sprite //GameObject gobj = CreateEmptyObject(name, showpanel); gobj.transform.localPosition = new Vector3(0, 0, 50); gobj.transform.localScale = new Vector3(1, 1, 1); //生成生成三级导航 ////UIScrollBar scrollbar = NGUITools.AddChild<UIScrollBar>(obj); //panel UIDraggablePanel panel = NGUITools.AddChild<UIDraggablePanel>(gobj); panel.transform.localPosition = new Vector3(500 + 140 - Screen.width, 0, 0); panel.transform.localScale = new Vector3(1, 1, 1); panel.scale = new Vector3(0, 1, 0); panel.GetComponent<UIPanel>().clipping = UIDrawCall.Clipping.SoftClip; //panel.GetComponent<UIPanel>().clipRange = new Vector4(0, 0, 280, 800); panel.GetComponent<UIPanel>().clipSoftness = new Vector2(1, 1); //sprite UISprite texture = NGUITools.AddSprite(gobj, atlas, "Sprite (MID_navigation_70%)"); //名字 //texture.pivot = UIWidget.Pivot.Top; texture.transform.localPosition = new Vector3(500 + 140 - Screen.width, 0, 0); //texture.transform.localScale = new Vector3(280, 800, 1); texture.alpha = 0.5f; //panel-grid UIGrid grid = NGUITools.AddChild<UIGrid>(panel.gameObject); grid.transform.localPosition = new Vector3(0, texture.transform.localScale.y / 2, -20); grid.transform.localScale = new Vector3(1, 1, 1); grid.arrangement = UIGrid.Arrangement.Vertical; grid.cellHeight = 40; grid.cellWidth = 505; JsonData jd = JsonMapper.ToObject(www.text); for (int i = 0; i < jd.Count; i++) { //根据解析的Name添加二级导航 //print("Name:" + jd[i]["Name"]); //print("url："+jd[i]["Url"]); //grid-item GameObject gobject = (GameObject)Instantiate(prefabItem1, new Vector3(0, 0, 0), Quaternion.identity); gobject.GetComponentInChildren<PrefbLoadmodel>().modelname = jd[i]["Type"].ToString(); //传入模型的名字 gobject.transform.parent = grid.transform; gobject.transform.localPosition = new Vector3(0, 0, 0); gobject.transform.localScale = new Vector3(1, 1, 1); //gobject.GetComponent<UIDragPanelContents>().draggablePanel = panel; gobject.GetComponentInChildren<UILabel>().text = jd[i]["Name"].ToString(); gobject.GetComponentInChildren<UISprite>().alpha = 0.5f; grid.repositionNow = true; //技术参数 //print("Telimgurl:" + jd[i]["Telimgurl"]); //规格 //print("Imgurl:" + jd[i]["Imgurl"]); } posY = 40 * jd.Count; if (posY > 400) { posY = 400; } texture.transform.localScale = new Vector3(505, posY + 10, 1); panel.GetComponent<UIPanel>().clipRange = new Vector4(0, 0, 505, posY + 10); //设置左上角坐标和宽高 } } } } break;
PrefbLoadmodel.cs: 这个类放在预设的按钮下，作用是点击加载模型
using UnityEngine; using System.Collections; using LitJson; public class PrefbLoadmodel : MonoBehaviour { static string ipStr = "http://ueige123.oicp.net/handler/"; string searchText = null; //产品中心导航链接 private string productUrl = ipStr + "Search.ashx"; Transform model; public string modelname=null; // Use this for initialization void Start () { model = GameObject.Find("Model").transform; } // Update is called once per frame void Update () { } void OnClick() { print("modelName:---"+modelname); isLoad(modelname+"(Clone)"); //将其他的隐藏 } void isLoad(string name) { if(model.FindChild(name)) { for (int i = 0; i < model.childCount; i++) { //当鼠标点击对象的名字与Modell中子对象名字不同相同时，设置激活状态：false if (model.GetChild(i).name != name) { model.GetChild(i).gameObject.SetActive(false); } else { model.GetChild(i).gameObject.SetActive(true); } } print("存在"); } else { print("不存在"); for (int i = 0; i < model.childCount; i++) { model.GetChild(i).gameObject.SetActive(false); } searchText = this.gameObject.GetComponentInChildren<UILabel>().text; StartCoroutine(SendName(searchText)); } } IEnumerator SendName(string name) { WWWForm form = new WWWForm(); print("name:"+name); form.AddField("type",name); WWW resumewww = new WWW(productUrl,form); yield return resumewww; //记录加载时出现的错误信息 if (resumewww.error != null) { print("错误:" + resumewww.error); } else { print(resumewww.text); //服务器端返回的数据 JsonData jd = JsonMapper.ToObject(resumewww.text); if (resumewww.isDone) { string url1= jd[0]["Url"].ToString(); string type = jd[0]["Type"].ToString(); modelname = type; WWW download = WWW.LoadFromCacheOrDownload(url1,1); yield return download; GameObject obj = Instantiate(download.assetBundle.mainAsset)as GameObject; obj.transform.parent = model; obj.transform.localPosition = new Vector3(4,0,2); obj.transform.localScale = new Vector3(1000, 1000,1000); obj.AddComponent<DragModel>(); //动态添加拖动组件 download.assetBundle.Unload(false); } } } }
DragModel.cs:这个类是模型动态的添加的组件，作用是能够鼠标旋转和缩放模型
using UnityEngine; using System.Collections; public class DragModel : MonoBehaviour { private float x = 0.0f; private float y = 0.0f; private float xSpeed = 200.0f; private float ySpeed = 200.0f; private float zSpeed = 40f; private float minDistence = 0; private float maxDistence = 10; void Update () { if(Input.GetMouseButton(1)) { x=Input.GetAxis("Mouse X") *xSpeed; y=Input.GetAxis("Mouse Y") *ySpeed; transform.Rotate(Vector3.up * -x *Time.deltaTime,Space.World); transform.Rotate(Vector3.right * y *Time.deltaTime,Space.World); } else if(Input.GetAxis("Mouse ScrollWheel")!=0) { float ga = Input.GetAxis("Mouse ScrollWheel"); if(transform.position.z > minDistence && transform.position.z<maxDistence||transform.position.z<=minDistence && ga<0||transform.position.z>=maxDistence && ga>0) { transform.Translate(Vector3.forward*-ga*zSpeed*Time.deltaTime,Space.World); } } } }
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