Unity学习笔记之VideoPlayer实现视频播放器效果

需求：实现一个视频播放器所拥有的的所有功能。

1：视频进度条实时更新

private void VideoSliderUpdate()//视频进度条更新
    {
        slider_ShiPin.value = (float)Math.Round(videoPlayer.clockTime, 2);
        txt_SliderTime.text = (float)Math.Round(videoPlayer.clockTime, 2) + "/" + videoMaxLength;
    }

下面附一下我写这个播放器的全部代码：

using System;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.EventSystems;
using UnityEngine.SceneManagement;
using UnityEngine.UI;
using UnityEngine.Video;

public enum VideoPlayModel
{
    FeiQuanPing,
    QuanPing,
}
public class VideoPlayerOnly : MonoBehaviour
{
    public VideoPlayer videoPlayer;
    VideoPlayModel videoPlayModel;

    [Header("****************视频****************")]
    public Text txt_ShiPinName;

    public Slider slider_ShiPin;
    public Text txt_SliderTime;

    public Slider slider_Audio;

    WaitForSeconds wfs = new WaitForSeconds(0.02f);

    public Button btn_PlayOrPauseBig;
    public Button btn_PlayOrPauseSmall;

    public Sprite[] sprites;

    private void AudioChange()//音量大小调节
    {
        AudioSource audioSource = videoPlayer.GetTargetAudioSource(0);
        audioSource.volume = slider_Audio.value;
    }
    private void VideoChange()//视频进度拖动预留（后面再增加）
    {
        if (!isCanUpdate)
            videoPlayer.time = slider_ShiPin.value;
    }
    private void UpdateVideoPlayTime()//更新视频进度条
    {
        slider_ShiPin.maxValue = (int)videoPlayer.length;
        slider_ShiPin.value = (int)videoPlayer.time;

        txt_SliderTime.text = TimeZhuanHuan((int)videoPlayer.time) + "/" + TimeZhuanHuan((int)videoPlayer.length);
    }

    #region 时间转换（秒转为时分秒）
    string str_Hour, str_Minute, str_Second;
    public string TimeZhuanHuan(int s)
    {
        int hour, minute, second;
        second = s % 60;//17
        minute = ((s / 60)) % 60;//7
        hour = (s / 60 / 60) % 60;

        if (hour < 10) str_Hour = "0" + hour;
        else str_Hour = hour.ToString();

        if (minute < 10) str_Minute = "0" + minute;
        else str_Minute = minute.ToString();

        if (second < 10) str_Second = "0" + second;
        else str_Second = second.ToString();

        return str_Hour + ":" + str_Minute + ":" + str_Second;
    }
    #endregion

    bool isPlaying;
    public void PlayAndPause()
    {
        //isVideoStop = true;
        if (isPlaying)
            ClickVideoPause();
        else
            ClickVideoPlay();

        isPlaying = !isPlaying;
    }

    private void ClickVideoPlay()
    {
        videoPlayer.Play();
        btn_PlayOrPauseBig.GetComponent<Image>().sprite = sprites[0];
        btn_PlayOrPauseSmall.GetComponent<Image>().sprite = sprites[1];
    }
    private void ClickVideoPause()
    {
        videoPlayer.Pause();
        btn_PlayOrPauseBig.GetComponent<Image>().sprite = sprites[2];
        btn_PlayOrPauseSmall.GetComponent<Image>().sprite = sprites[3];
    }
    public void StopVideo()
    {
        videoPlayer.Stop();
        isPlaying = false;
        ClickVideoPause();
    }
    private void InitShiPin()
    {
        slider_Audio.onValueChanged.AddListener(delegate { AudioChange(); });
        slider_Audio.maxValue = 100;

        slider_ShiPin.maxValue = (float)videoPlayer.length;
        slider_ShiPin.value = 0;

        btn_PlayOrPauseBig.onClick.AddListener(delegate { PlayAndPause(); });
        btn_PlayOrPauseSmall.onClick.AddListener(delegate { PlayAndPause(); });
    }

    public void ClickShiPin(int index)
    {
        Scene scene = SceneManager.GetActiveScene();
        string s = "";
        if (scene.name == "Init")//介绍里面的视频
        {
            txt_ShiPinName.text = AnalysisJSON.GetJieShaoVideoName(index);

            s = Application.streamingAssetsPath + "/JiaoHuSceneVideo/" + AnalysisJSON.GetJieShaoVideoPath(index);
        }
        else if (scene.name == "JiaoHuScene0")//交互场景的视频
        {
            txt_ShiPinName.text = AnalysisJSON.GetJiaoHuSceneVideoName(index);

            s = Application.streamingAssetsPath + "/JiaoHuSceneVideo/" + AnalysisJSON.GetJiaoHuSceneVideoPath(index);
        }
        
        videoPlayer.url = s;

        slider_ShiPin.value = 0;
        videoPlayer.Play();

        PlayAndPause();
    }

    private void Awake()
    {
        InitShiPin();
        slider_ShiPin.onValueChanged.AddListener(delegate { VideoChange(); });
    }
    private void Start()
    {
        CanvasInit();
    }

    public bool isCanUpdate;

    public void QuanPingVideo()
    {
        isCanUpdate = false;
        AudioSource audioSource = videoPlayer.GetTargetAudioSource(0);
        audioSource.volume = 0;

        PlayAndPause();

    }

    private void Update()
    {
        
        if (isCanUpdate)
        {
            UpdateVideoPlayTime();
            ImageUpdate();
        }

        if (GetUI() != null)
        {
            if (GetUI().name == "Fill" && Input.GetMouseButtonDown(0))
            {
                isCanUpdate = false;
            }
            else if (Input.GetMouseButtonUp(0))
            {
                isCanUpdate = true;
            }
        }
    }

    #region 全屏
    [Header("****************全屏****************")]
    public RectTransform quanPin_Rect;//全屏需要更改的RectTransform
    public Transform quanPin_Parent;//非全屏状态下的父物体
    public GameObject bu_Up;//最上方的介绍、图片、视频按钮父物体
    bool isQuanPing;//是否全屏
    public void IsQuanPin()
    {
        isQuanPing = !isQuanPing;
        bu_Up.SetActive(!isQuanPing);
        if (isQuanPing)
        {
            quanPin_Rect.transform.parent = transform;
            quanPin_Rect.anchoredPosition = new Vector2(1018, -510);
            quanPin_Rect.sizeDelta = new Vector2(2036, 1018);
        }
        else
        {
            quanPin_Rect.transform.parent = quanPin_Parent;
            quanPin_Rect.anchoredPosition = new Vector2(0, 0);
            quanPin_Rect.sizeDelta = new Vector2(800, 450);
        }
        StartCoroutine(RefreshQuanPing());
    }
    IEnumerator RefreshQuanPing()
    {
        RectTransform rect = quanPin_Rect.transform.parent.GetComponent<RectTransform>();
        yield return new WaitForEndOfFrame();
        LayoutRebuilder.MarkLayoutForRebuild(rect);
        yield return new WaitForEndOfFrame();
        LayoutRebuilder.MarkLayoutForRebuild(rect);
        yield return new WaitForEndOfFrame();
        LayoutRebuilder.MarkLayoutForRebuild(rect);
        yield return new WaitForEndOfFrame();
        LayoutRebuilder.MarkLayoutForRebuild(rect);
    }
    #endregion

    #region 视频播放按钮透明度改变

    private static GraphicRaycaster canvas;
    public void CanvasInit()//必须获取到Canvas上的GraphicRaycaster组件才可以开始监听
    {
        canvas = OverallSituation.instance.mainCanvas.GetComponent<GraphicRaycaster>();
    }
    /// <summary>
    /// 获取鼠标停留处UI
    /// </summary>
    public static GameObject GetUI()
    {
        if (canvas == null) return null;
        PointerEventData pointerEventData = new PointerEventData(EventSystem.current);
        pointerEventData.position = Input.mousePosition;
        GraphicRaycaster gr = canvas.GetComponent<GraphicRaycaster>();
        List<RaycastResult> results = new List<RaycastResult>();
        gr.Raycast(pointerEventData, results);
        if (results.Count != 0)
        {
            return results[0].gameObject;
        }
        return null;
    }

    Color c = Color.white;
    float maxTime = 1;
    float time = 0;
    bool isStop;
    IEnumerator ColorAChange(bool isEnter)
    {
        if (isEnter)
        {
            time = 0;
            while (time <= maxTime)
            {
                yield return new WaitForSeconds(Time.deltaTime * 10);
                c.a -= Time.deltaTime;
                btn_PlayOrPauseBig.GetComponent<Image>().color = c;
                time += Time.deltaTime;
            }
            isStop = true;
        }
        else
        {
            c.a = 1;
            btn_PlayOrPauseBig.GetComponent<Image>().color = Color.white;
            isStop = true;
        }
    }
    public void ImageUpdate()//时刻更新
    {
        if (GetUI() != null)
        {
            if (GetUI().name == "btn_PlayOrPauseBig")
            {
                if (isStop)
                {
                    StopAllCoroutines();
                    isStop = false;
                }
                StartCoroutine(ColorAChange(false));
            }
            else
            {
                if (isStop)
                {
                    StopAllCoroutines();
                    isStop = false;
                }
                StartCoroutine(ColorAChange(true));
            }
        }
        else
        {
            if (isStop)
            {
                StopAllCoroutines();
                isStop = false;
            }
            StartCoroutine(ColorAChange(true));
        }
    }
    #endregion
}

稍微修改了一下时间转换