Unity日期时间选择器
2020-12-24 本文已影响0人
玄策丶
参考 https://blog.csdn.net/sinat_39291423/article/details/91039436?locationNum=11&fps=1
一、搭建场景
下拉条.png
image.png
image.png
image.png
1、
/***********************
* Title: 年 月 日
* FileName:
* Date: 2020
* Author: 玄策
* Version: 1.0
* UnityVersion: 2019.2.4f1
* Description:
* Func:
* -
***********************/
using System.Collections;
using System;
using UnityEngine;
using UnityEngine.UI;
public class ChoiceTime : MonoBehaviour
{
[Tooltip("箭头图片")]
//public Sprite[] Arrows;
//显示时间的文字
public Text Text_Data;
//显示箭头的图片
private Image ArrowsImage;
//选择时间界面
public GameObject ChoiceTimeObj;
//按钮
private Button ChoiceBtn;
//是否选择时间
private bool isShowChoiceTime;
void Start()
{
//Text_Data = GameObject.Find("Text_Data").GetComponent<Text>();
//ArrowsImage = GameObject.Find("ShowArrows").GetComponent<Image>();
//ChoiceTimeObj = GameObject.Find("Time_Data");
ChoiceTimeObj.SetActive(false);
ChoiceBtn = GetComponent<Button>();
ChoiceBtn.onClick.AddListener(StartChoiceTime);
}
private void OnEnable()
{
//开始默认选择系统时间
//Text_Data.text = DateTime.Now.ToString("yyyy年MM月dd日 HH : mm : ss");
Text_Data.text = DateTime.Now.ToString("yyyy 年 MM 月 dd 日");
}
// Update is called once per frame
void Update()
{
if (ChoiceTimeObj.activeSelf)
{
isShowChoiceTime = true;
}
else
{
isShowChoiceTime = false;
}
}
public void StartChoiceTime()
{
//作战时间的number为1,开始时间的number为2
if (!isShowChoiceTime)
{
//显示选择时间界面
ChoiceTimeObj.SetActive(true);
//箭头向下
//ArrowsImage.sprite = Arrows[1];
}
else
{
//关闭选择时间界面
ChoiceTimeObj.SetActive(false);
//是否显示时间选择界面为false
isShowChoiceTime = false;
//箭头向上
//ArrowsImage.sprite = Arrows[0];
//判断选没选择日期，当只点开选择框没有选择时，默认的日期会变为001年。所以要判断下
if (DatePickerGroup._selectTime.ToString("yyyy 年 MM 月 dd 日").Substring(0, 3) == "000")
{
Text_Data.text = DateTime.Now.ToString("yyyy 年 MM 月 dd 日");
}
else
{
Text_Data.text = DatePickerGroup._selectTime.ToString("yyyy 年 MM 月 dd 日");
}
//string[] data = Text_Data.text.Split(' ');
//UI_DaPingTest.Instance.year = int.Parse(data[0]);
//UI_DaPingTest.Instance.mouth = int.Parse(data[2]);
//UI_DaPingTest.Instance.day = int.Parse(data[4]);
}
}
}
2、
using System;
using UnityEngine;
using UnityEngine.EventSystems;
using UnityEngine.UI;
/// <summary>
/// 当选择日期的委托
/// </summary>
public delegate void OnDateUpdate();
public enum DateType
{
_year, _month, _day,
_hour, _minute, _second
}
/// <summary>
/// 日期选择器
/// </summary>
public class DatePicker : MonoBehaviour, IBeginDragHandler, IDragHandler, IEndDragHandler
{
/// <summary>
/// 日期类型 （年月日时分秒）
/// </summary>
public DateType _dateType;
/// <summary>
/// 子节点数量（奇数）
/// </summary>
public int _itemNum = 5;
[HideInInspector]
/// <summary>
/// 更新选择的目标值
/// </summary>
public float _updateLength;
/// <summary>
/// 子节点预制体
/// </summary>
public GameObject _itemObj;
/// <summary>
/// 子节点容器对象
/// </summary>
public Transform _itemParent;
/// <summary>
/// 我属于的日期选择组
/// </summary>
[HideInInspector]
public DatePickerGroup myGroup;
/// <summary>
/// 当选择日期的委托事件
/// </summary>
public event OnDateUpdate _onDateUpdate;
void Awake()
{
_itemObj.SetActive(false);
_updateLength = _itemObj.GetComponent<RectTransform>().sizeDelta.y;
}
/// <summary>
/// 初始化时间选择器
/// </summary>
public void Init()
{
for (int i = 0; i < _itemNum; i++)
{
//计算真实位置
int real_i = -(_itemNum / 2) + i;
SpawnItem(real_i);
}
RefreshDateList();
}
/// <summary>
/// 生成子对象
/// </summary>
/// <param name="dataNum">对应日期</param>
/// <param name="real_i">真实位置</param>
/// <returns></returns>
GameObject SpawnItem(float real_i)
{
GameObject _item = Instantiate(_itemObj);
_item.SetActive(true);
_item.transform.SetParent(_itemParent);
_item.transform.localScale = new Vector3(1, 1, 1);
_item.transform.localEulerAngles = Vector3.zero;
_item.transform.localPosition = Vector3.zero;
if (real_i != 0)
{
_item.GetComponent<Text>().color = new Color(0, 0, 0, 1 - 0.2f - (Mathf.Abs(real_i) / (_itemNum / 2 + 1)));
}
return _item;
}
Vector3 oldDragPos;
/// <summary>
/// 当开始拖拽
/// </summary>
/// <param name="eventData"></param>
public void OnBeginDrag(PointerEventData eventData)
{
oldDragPos = eventData.position;
}
public void OnDrag(PointerEventData eventData)
{
//Debug.Log("拖拽");
UpdateSelectDate(eventData);
}
public void OnEndDrag(PointerEventData eventData)
{
_itemParent.localPosition = Vector3.zero;
}
/// <summary>
/// 更新选择的时间
/// </summary>
/// <param name="eventData"></param>
void UpdateSelectDate(PointerEventData eventData)
{
//判断拖拽的长度是否大于目标值
if (Mathf.Abs(eventData.position.y - oldDragPos.y) >= _updateLength)
{
int num;
//判断加减
if (eventData.position.y > oldDragPos.y)
{
//+
num = 1;
}
else
{
//-
num = -1;
}
DateTime _data = new DateTime();
switch (_dateType)
{
case DateType._year:
_data = myGroup._selectDate.AddYears(num);
break;
case DateType._month:
_data = myGroup._selectDate.AddMonths(num);
break;
case DateType._day:
_data = myGroup._selectDate.AddDays(num);
break;
case DateType._hour:
_data = myGroup._selectDate.AddHours(num);
break;
case DateType._minute:
_data = myGroup._selectDate.AddMinutes(num);
break;
case DateType._second:
_data = myGroup._selectDate.AddSeconds(num);
break;
}
//判断是否属于时间段
if (IsInDate(_data, myGroup._minDate, myGroup._maxDate))
{
myGroup._selectDate = _data;
oldDragPos = eventData.position;
_onDateUpdate();
}
// _itemParent.localPosition = Vector3.zero;
}
else
{
//_itemParent.localPosition = new Vector3(0, (eventData.position.y - oldDragPos.y), 0);
}
}
/// <summary>
/// 刷新时间列表
/// </summary>
public void RefreshDateList()
{
DateTime _data = new DateTime();
for (int i = 0; i < _itemNum; i++)
{
//计算真实位置
int real_i = -(_itemNum / 2) + i;
switch (_dateType)
{
case DateType._year:
_data = myGroup._selectDate.AddYears(real_i);
break;
case DateType._month:
_data = myGroup._selectDate.AddMonths(real_i);
break;
case DateType._day:
_data = myGroup._selectDate.AddDays(real_i);
break;
case DateType._hour:
_data = myGroup._selectDate.AddHours(real_i);
break;
case DateType._minute:
_data = myGroup._selectDate.AddMinutes(real_i);
break;
case DateType._second:
_data = myGroup._selectDate.AddSeconds(real_i);
break;
}
string str = "";
if (IsInDate(_data, myGroup._minDate, myGroup._maxDate))
{
switch (_dateType)
{
case DateType._year:
str = _data.Year.ToString();
break;
case DateType._month:
str = _data.Month.ToString();
break;
case DateType._day:
str = _data.Day.ToString();
break;
case DateType._hour:
str = _data.Hour.ToString();
break;
case DateType._minute:
str = _data.Minute.ToString();
break;
case DateType._second:
str = _data.Second.ToString();
break;
}
}
_itemParent.GetChild(i).GetComponent<Text>().text = str;
}
}
/// <summary>
/// 判断某个日期是否在某段日期范围内，返回布尔值
/// </summary>
/// <param name="dt">要判断的日期</param>
/// <param name="dt_min">开始日期</param>
/// <param name="dt_max">结束日期</param>
/// <returns></returns>
public bool IsInDate(DateTime dt, DateTime dt_min, DateTime dt_max)
{
return dt.CompareTo(dt_min) >= 0 && dt.CompareTo(dt_max) <= 0;
}
}
3、
using System;
using System.Collections.Generic;
using UnityEngine;
/// <summary>
/// 日期选择组
/// </summary>
public class DatePickerGroup : MonoBehaviour
{
/// <summary>
/// 最小日期和最大日期
/// </summary>
public DateTime _minDate, _maxDate;
/// <summary>
/// 选择的日期（年月日时分秒）
/// </summary>
public DateTime _selectDate;
/// <summary>
/// 时间选择器列表
/// </summary>
public List<DatePicker> _datePickerList;
/// <summary>
/// 当选择日期的委托事件
/// </summary>
public event OnDateUpdate _OnDateUpdate;
public static DateTime _selectTime;
void Awake()
{
//设置最大最小日期
_minDate = new DateTime(1999, 1, 1, 0, 0, 0);
_maxDate = new DateTime(2050, 1, 1, 0, 0, 0);
Init();
}
public void Init(DateTime dt)
{
_selectDate = dt;
for (int i = 0; i < _datePickerList.Count; i++)
{
_datePickerList[i].myGroup = this;
_datePickerList[i].Init();
_datePickerList[i]._onDateUpdate += onDateUpdate;
}
}
public void Init()
{
_selectDate = DateTime.Now;
for (int i = 0; i < _datePickerList.Count; i++)
{
_datePickerList[i].myGroup = this;
_datePickerList[i].Init();
_datePickerList[i]._onDateUpdate += onDateUpdate;
}
}
/// <summary>
/// 当选择的日期更新
/// </summary>
public void onDateUpdate()
{
//Debug.Log("当前选择日期：" + _selectDate.ToString("yyyy年MM月dd日 HH : mm : ss"));
//将选中的时间给_selectTime ，供其他界面调用
_selectTime = _selectDate;
for (int i = 0; i < _datePickerList.Count; i++)
{
_datePickerList[i].RefreshDateList();
}
}
}
