NGUI实现滑动翻页效果实例代码
废话不多说了,直接给大家上干货了。
具体代码如下所示:
using UnityEngine; using System.Collections; public class PageView : MonoBehaviour { const int ITEM_NUM = 2; //总页数 const int PAGE_WIDTH = 2048; //页宽 const float DRAG_SPEED = 0.5f; //翻页时间 const int DRAG_OFFECT = 30; //滑动的起点和终点的差需大于这个数才能触发翻页效果 float beganX = 0; float beganY = 0; //鼠标按下的坐标 int curIndex = 1; //当前页数,默认为第一页 bool isPlay = false; //是否正在翻页 bool isPress = false; //鼠标是否按下 bool isPageFoot = false; //当前是否处于页尾 bool isHomePage = true; //当前是否处于首页 string left = "left"; //左滑动画的name string right = "right"; //右滑动画的name GameObject[] Item_Objects; // Use this for initialization void Start () { this.Init (); } void Init() { Item_Objects = new GameObject[ITEM_NUM]; for(int i = 1; i <= ITEM_NUM; ++i) { Transform trans = this.transform.FindChild("item" + i); if(trans) { GameObject spr = trans.transform.FindChild("Background").gameObject; spr.AddComponent<UIEventListener>(); UIEventListener.Get(spr.gameObject).onPress = OnPressEvent; } Item_Objects[i - 1] = trans.gameObject; } } //鼠标按下事件监听 void OnPressEvent(GameObject obj,bool isDown) { float endX; float endY; if (isDown) { beganX = UICamera.lastTouchPosition.x; beganY = UICamera.lastTouchPosition.y; isPress = true; } else { endX = UICamera.lastTouchPosition.x; endY = UICamera.lastTouchPosition.y; if (isPress) { if(isPlay == false) { if(endX - beganX > DRAG_OFFECT) { if(isHomePage == false) { RightDrag(); } }else if(endX - beganX < DRAG_OFFECT){ if(isPageFoot == false) { LeftDrag(); } } } } isPress = false; } } //向左滑 void LeftDrag() { isPlay = true; float x = this.transform.localPosition.x - PAGE_WIDTH; TweenPosition leftTween = TweenPosition.Begin (this.gameObject,DRAG_SPEED,new Vector3(x,0,0)); leftTween.method = UITweener.Method.EaseInOut; leftTween.callWhenFinished = "callback"; leftTween.name = left; leftTween.Reset (); } //向右滑 void RightDrag() { isPlay = true; float x = this.transform.localPosition.x + PAGE_WIDTH; TweenPosition rightTween = TweenPosition.Begin (this.gameObject,DRAG_SPEED,new Vector3(x,0,0)); rightTween.method = UITweener.Method.EaseInOut; rightTween.callWhenFinished = "callback"; rightTween.name = right; rightTween.Reset (); } //动画结束的回调函数 void callback(UITweener tween) { isPlay = false; if (tween.name == left) { curIndex ++; } else if (tween.name == right) { curIndex --; } if (curIndex == 1) { isHomePage = true; }else { isHomePage = false; } if(curIndex == ITEM_NUM){ isPageFoot = true; }else { isPageFoot = false; } } }
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