ict.lixian.single/Assets/Scripts/UIManager/Panel/TaskDetailPanel.cs

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
using TMPro;
using static InterfaceManager;
using DG.Tweening;
using UnityEngine.Video;

public class TaskDetailPanel : PanelBasic
{
    /// <summary>
    /// 步骤
    /// </summary>
    public TextMeshProUGUI tittle_text;
    /// <summary>
    /// 描述文本
    /// </summary>
    public TextMeshProUGUI description_text;

    /// <summary>
    /// 关闭按钮
    /// </summary>
    public Button close_button;
    /// <summary>
    /// 我已完成按钮
    /// </summary>
    public Button im_done_button;
    /// <summary>
    /// 媒体容器
    /// </summary>
    public RectTransform media_content;
    /// <summary>
    /// 媒体预制体
    /// </summary>
    public MediaItem image_media_prefab;
    /// <summary>
    /// 上一个媒体按钮
    /// </summary>
    public Button media_last_button;
    /// <summary>
    /// 下一个媒体按钮
    /// </summary>
    public Button media_next_button;
    /// <summary>
    /// 已实例化媒体Item列表
    /// </summary>
    public List<MediaItem> image_media_pool = new List<MediaItem>();
    /// <summary>
    /// 使用中的Item列表
    /// </summary>
    private List<MediaItem> using_media_list = new List<MediaItem>();
    /// <summary>
    /// 最大数量
    /// </summary>
    public int max_media_count => using_media_list.Count;
    /// <summary>
    /// 当前媒体浏览滑动位置
    /// </summary>
    public int current_media_index;
    
    protected override void Awake()
    {
        base.Awake();
    }

    //public Image 

    // Start is called before the first frame update
    void Start()
    {
        close_button.onClick.AddListener(OnClose);
        media_last_button.onClick.AddListener(OnLastMedia);
        media_next_button.onClick.AddListener(OnNextMedia);
    }
    private TaskStep last_task_item_data;
    public void Init(TaskStep _task_detail_data)
    {
        //判断是否和上次打开时为同一条数据
        bool is_same_step = last_task_item_data == null ? false : last_task_item_data.id == _task_detail_data.id;
        last_task_item_data = _task_detail_data;
        if (is_same_step)
        {
            //同一个不作处理
            //using_media_list.ForEach(x=>x.gameObject.SetActive(true));
        }
        else
        {
            Recycle();
            tittle_text.text = "步骤 "+_task_detail_data.sort ;
           // tittle_text.text = "步骤 " ;//_task_detail_data.task_step//;
            //展示步骤提示
            description_text.text = _task_detail_data.tipContent;
        
            //是否显示上一个下一个按钮
            media_last_button.gameObject.SetActive(_task_detail_data.taskStepTipFileList.Count >= 2);
            media_next_button.gameObject.SetActive(_task_detail_data.taskStepTipFileList.Count >= 2);



            for (int i = 0; i < _task_detail_data.taskStepTipFileList.Count; i++)
            {
                if (!string.IsNullOrEmpty(_task_detail_data.taskStepTipFileList[i].fileUrl))
                {

                    if (_task_detail_data.taskStepTipFileList[i].type==1)
                    {
                        //图片
                        GetImage(_task_detail_data.taskStepTipFileList[i].fileUrl);
                    }
                    else if(_task_detail_data.taskStepTipFileList[i].type == 2)
                    {
                        //视频
                        GetVideo(_task_detail_data.taskStepTipFileList[i].fileUrl);
                    }
                }

            }
        }
    }

    /// <summary>
    /// 面板关闭事件
    /// </summary>
    public void OnClose()
    {
        OnNagetive();

        //图片状态恢复
        media_content.anchoredPosition = Vector2.zero;
        current_media_index = 0;
    }

    /// <summary>
    /// 获取步骤图片
    /// </summary>
    /// <param name="_url"></param>
    public void GetImage(string _url)
    {
        if (image_media_prefab == null) image_media_prefab = Resources.Load<MediaItem>("Prefabs/UIItem/MediaItem");
        StartCoroutine(GetSprite(_url, (_sprite) =>
        {
            var _item = Get();
            _item.InitImage(_sprite);
            using_media_list.Add(_item);
        }));
    }
    /// <summary>
    /// 获取步骤视频
    /// </summary>
    /// <param name="_url"></param>
    public void GetVideo(string _url)
    {
        if (image_media_prefab == null) image_media_prefab = Resources.Load<MediaItem>("Prefabs/UIItem/MediaItem");
        var _item = Get();
        using_media_list.Add(_item);
        _item.InitVideo(_url);

    }

    public RenderTexture GetRenderTexture(int _width, int _height, int _depth = 16)
    {
        RenderTexture rt = new RenderTexture(_width, _height, _depth, RenderTextureFormat.ARGB32);
        rt.Create();
        return rt;
    }
    /// <summary>
    /// 上一个媒体
    /// </summary>
    public void OnLastMedia()
    {
        if (current_media_index > 0)
            current_media_index--;

        media_content.DOAnchorPos(new Vector2(-current_media_index * (media_content.rect.width + 5), 0), 0.25f);
    }
    /// <summary>
    /// 下一个媒体
    /// </summary>
    public void OnNextMedia()
    {
        if (current_media_index < max_media_count - 1)
            current_media_index++;

        media_content.DOAnchorPos(new Vector2(-current_media_index * (media_content.rect.width + 5), 0), 0.25f);
    }

    /// <summary>
    /// 获取
    /// </summary>
    /// <returns></returns>
    public MediaItem Get()
    {
        MediaItem _item;
        if (image_media_pool.Count > 0)
        {
            _item = image_media_pool[0];
            image_media_pool.Remove(_item);
            _item.gameObject.SetActive(true);
        }
        else
        {
            _item = Instantiate(image_media_prefab, media_content);
        }
        return _item;
    }

    /// <summary>
    /// 回收
    /// </summary>
    public void Recycle()
    {
        var _count = using_media_list.Count;
        for (int i = _count - 1; i >= 0; i--)
        {
            var _item = using_media_list[i];
            _item.gameObject.SetActive(false);
            using_media_list.Remove(_item);
            image_media_pool.Add(_item);
        }
    }
}