我要评论本文实例为大家分享了unity ugui实现滑动翻页，直接跳转页数的具体代码，供大家参考，具体内容如下
首先看一下最终效果
其实这个功能基本上是老生常谈了，所以代码还是很简单
using unityengine;
using system.collections;
using unityengine.ui;
using system.collections.generic;
using unityengine.eventsystems;
using system;
public class pageview : monobehaviour, ibegindraghandler, ienddraghandler
{
private scrollrect rect; //滑动组件
private float targethorizontal = 0; //滑动的起始坐标
private bool isdrag = false; //是否拖拽结束
private list<float> poslist = new list<float>(); //求出每页的临界角，页索引从0开始
private int currentpageindex = -1;
public action<int> onpagechanged;
public recttransform content;
private bool stopmove = true;
public float smooting = 4; //滑动速度
public float sensitivity = 0;
private float starttime;
private float startdraghorizontal;
public transform togglelist;
void start()
{
rect = transform.getcomponent<scrollrect>();
var _rectwidth = getcomponent<recttransform>();
var tempwidth = ((float)content.transform.childcount * _rectwidth.rect.width);
content.sizedelta = new vector2(tempwidth, _rectwidth.rect.height);
//未显示的长度
float horizontallength = content.rect.width - _rectwidth.rect.width;
for (int i = 0; i < rect.content.transform.childcount; i++)
{
poslist.add(_rectwidth.rect.width * i / horizontallength);
}
}
void update()
{
if (!isdrag && !stopmove)
{
starttime += time.deltatime;
float t = starttime * smooting;
rect.horizontalnormalizedposition = mathf.lerp(rect.horizontalnormalizedposition, targethorizontal, t);
if (t >= 1)
stopmove = true;
}
//debug.log(rect.horizontalnormalizedposition);
}
public void pageto(int index)
{
if (index >= 0 && index < poslist.count)
{
rect.horizontalnormalizedposition = poslist[index];
setpageindex(index);
getindex(index);
}
}
private void setpageindex(int index)
{
if (currentpageindex != index)
{
currentpageindex = index;
if (onpagechanged != null)
onpagechanged(index);
}
}
public void onbegindrag(pointereventdata eventdata)
{
isdrag = true;
//开始拖动
startdraghorizontal = rect.horizontalnormalizedposition;
}
public void onenddrag(pointereventdata eventdata)
{
float posx = rect.horizontalnormalizedposition;
posx += ((posx - startdraghorizontal) * sensitivity);
posx = posx < 1 ? posx : 1;
posx = posx > 0 ? posx : 0;
int index = 0;
float offset = mathf.abs(poslist[index] - posx);
//debug.log("offset " + offset);
for (int i = 1; i < poslist.count; i++)
{
float temp = mathf.abs(poslist[i] - posx);
//debug.log("temp " + temp);
//debug.log("i" + i);
if (temp < offset)
{
index = i;
offset = temp;
}
//debug.log("index " + index);
}
//debug.log(index);
setpageindex(index);
getindex(index);
targethorizontal = poslist[index]; //设置当前坐标，更新函数进行插值
isdrag = false;
starttime = 0;
stopmove = false;
}
public void getindex(int index)
{
var toogle = togglelist.getchild(index).getcomponent<toggle>();
toogle.ison = true;
}
}
using unityengine;
using system.collections;
using unityengine.ui;
using system;
public class gamecontroller : monobehaviour {
[serializefield]
private text pagenumber;
[serializefield]
private inputfield inputfield;
[serializefield]
private pageview pageview;
// use this for initialization
void start () {
pagenumber.text = string.format ("当前页码：0");
pageview.onpagechanged = pagechanged;
}
void pagechanged (int index) {
pagenumber.text = string.format ("当前页码：{0}" , index.tostring ());
}
public void onclick () {
try {
int idnex = int.parse (inputfield.text);
pageview.pageto (idnex);
} catch(exception ex) {
debug.logwarning ("请输入数字"+ex.tostring());
}
}
void destroy () {
pageview.onpagechanged = null;
}
}
附上项目：
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持移动技术网。
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