【Unity】代码控制视频的播放（视频播放器）

这个老版本的可以借鉴，新版的已经出来了，上链接哈：

【Unity】代码控制视频的播放（视频播放器-更新）_夜梦说开发（VR）的博客-CSDN博客

结果如上图。。。

如图所示，里面有开始，暂停，重播，关闭按钮，同时有一个播放视频的进度条，以及后面两个显示时间总长度和实时时间的文本，以及中间播放视频的RawImage。

上一次写了如何设置RawImage进行自动播放，这次就直接用代码控制，同时还有进度条的控制。

可以看一下上一次的这篇文章：

CSDNhttps://mp.csdn.net/mp_blog/creation/editor/120648989

在写代码之前，还需要把按钮和组件相对的设置好，以及RawImage的设置调整好

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

public class VideoCrol : MonoBehaviour {

	public static VideoCrol instance;

	private VideoPlayer vPlayer;

	public GameObject videoImage;//播放image
	private Button BtnPlay, BtnPause, BtnReStart;//开始，暂停，重播
	public Slider sliderVideo;//进度条
	private Button BtnX;//关闭
	private Image VideoPanel;//视频背景
	private Text NowTime;//播放时间
	private Text TotalTime;//总时间

	private float tt;//视频总时长
	private float Index_t;//进度条计时时间

	private float hour, min, second;

	private bool IsPlay = true;

	void Awake()
	{
		instance = this;
		vPlayer = videoImage.GetComponent();
		BtnPlay = GameObject.Find("Kaishi").GetComponent();
		BtnPause = GameObject.Find("Zanting").GetComponent();
		BtnReStart = GameObject.Find("ReWindButton").GetComponent();
		sliderVideo = GameObject.Find("SliderVideo").GetComponent();
		VideoPanel = GameObject.Find("VideoPanel").GetComponent();
		BtnX = GameObject.Find("CloseButton").GetComponent();
		TotalTime = GameObject.Find("ZongTimeText").GetComponent();
		NowTime = GameObject.Find("NowTimeText").GetComponent();
	}

	public void OnEnable()
	{
		BtnReStart.onClick.AddListener(ClickReStart);
		BtnReStart.onClick.AddListener(ClickReStart);
		BtnX.onClick.AddListener(ClickBtnX);
		BtnPlay.onClick.AddListener(ClickKaishi);
		BtnPause.onClick.AddListener(ClickZanting);
	}
	public void OnDisable()
	{
		BtnReStart.onClick.RemoveListener(ClickReStart);
		BtnReStart.onClick.RemoveListener(ClickReStart);
		BtnX.onClick.RemoveListener(ClickBtnX);
		BtnPlay.onClick.RemoveListener(ClickKaishi);
		BtnPause.onClick.RemoveListener(ClickZanting);
	}

    // Use this for initialization
    void Start () {
		ClickKaishi();//是否自动播放

		tt = (float)vPlayer.clip.length;

		sliderVideo.maxValue = tt;

		min = (int)tt / 60;
		second = (int)tt % 60;
		TotalTime.text = string.Format("{0:D2}:{1:D2}",min.ToString(),second.ToString());
	}
	
	void Update () {
		//播放
        if (IsPlay)
        {
			vPlayer.Play();
			Index_t += Time.deltaTime;
            if (Index_t>=0.1f)
            {
				sliderVideo.value += 0.1f;
				Index_t = 0;
            }
        }
        else
        {
			vPlayer.Pause();
        }
		//进度条到底停止播放
        if (sliderVideo.maxValue-sliderVideo.value<=0.1f)
        {
			ClickReStart();
        }
		ChangeTime((float)vPlayer.time);
	}

	public void ChangeVideo(float value)
	{
		vPlayer.time = value;
	}

	/// 

	/// 播放时间显示
	/// 
	/// 
	void ChangeTime(float value)
	{
		min = (int)value / 60;
		second = (int)value % 60;
		NowTime.text= string.Format("{0:D2}:{1:D2}", min.ToString(), second.ToString());
	}
	/// 

	/// 重播按钮
	/// 
	public void ClickReStart()
	{
		sliderVideo.value = 0;
		vPlayer.time = 0;
	}
	/// 

	/// 关闭按钮
	/// 
	public void ClickBtnX()
	{
		VideoPanel.gameObject.SetActive(false);
	}
	/// 

	/// 开始按钮
	/// 
	public void ClickKaishi()
	{
        if (sliderVideo.value==sliderVideo.maxValue)
        {
			sliderVideo.value = 0;
        }
		videoImage.SetActive(true);
		IsPlay = true;
		BtnPause.gameObject.SetActive(true);
		BtnPlay.gameObject.SetActive(false);
	}
	/// 

	/// 暂停按钮
	/// 
	public void ClickZanting()
	{
		IsPlay = false;
		BtnPause.gameObject.SetActive(false);
		BtnPlay.gameObject.SetActive(true);
	}
}

同时还有另外一个脚本用来控制Slider的拖动和拖拽（两个接口，拖动和点击）

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.EventSystems;

public class SliderChange : MonoBehaviour,IDragHandler,IPointerClickHandler
{
    /// 

    /// 拖动改变视频进度
    /// 
    /// 
    public void OnDrag(PointerEventData eventData)
    {
        VideoCrol.instance.ChangeVideo(VideoCrol.instance.sliderVideo.value);
    }
    /// 

    /// 点击改变视频进度
    /// 
    /// 
    public void OnPointerClick(PointerEventData eventData)
    {
        VideoCrol.instance.ChangeVideo(VideoCrol.instance.sliderVideo.value);
    }
}

在最后写完代码，组件做完之后，视频和参数等也需要调整一下

链接：https://pan.baidu.com/s/1SnSxuDa7o8nwnkj4EoikFg 
提取码：1ac0 
--来自百度网盘超级会员V5的分享

把整体打包了一个，包含代码和组件，可以看一下(上面的是打包好的网盘链接)

视频播放器更新了喇叭控制音量。

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

public class VideoCro : MonoBehaviour {

	public static VideoCro instance;

	private VideoPlayer vPlayer;

	public GameObject videoImage;//播放image
	private Button BtnPlay, BtnPause, BtnReStart;//开始，暂停，重播
	public Slider sliderVideo;//进度条
	//private Button BtnX;//关闭
	//private Image VideoPanel;//视频背景
	private Text NowTime;//播放时间
	private Text TotalTime;//总时间

	private float tt;//视频总时长
	private float Index_t;//进度条计时时间

	private float hour, min, second;

	private bool IsPlay = true;
	
	private Slider Audio_Slider;//声音进度条
	private Text AudioNum;//声音数字显示
	public AudioSource audioSource;//声音播放器
	private GameObject audioGameObject;//声音及数字整体组件
	private Button Btn_Audio;//喇叭按钮
	bool a = true;//控制喇叭是否显示

	void Awake()
	{
		instance = this;
		vPlayer = videoImage.GetComponent();
		BtnPlay = transform.Find("Kaishi").GetComponent();
		BtnPause = transform.Find("Zanting").GetComponent();
		BtnReStart = transform.Find("BtnReStart").GetComponent();
		

		sliderVideo = transform.Find("SliderVideo").GetComponent();
		//VideoPanel = transform.Find("VideoPanel").GetComponent();
		//BtnX = transform.Find("CloseButton").GetComponent();
		TotalTime = transform.Find("ZongTimeText").GetComponent();
		NowTime = transform.Find("NowTimeText").GetComponent();

		Btn_Audio = transform.Find("Btn_Audio").GetComponent();
		audioGameObject = transform.Find("Audio").gameObject;
		Audio_Slider = transform.Find("Audio/Audio_Slider").GetComponent();
		AudioNum = transform.Find("Audio/AudioNum").GetComponent();
		audioSource = GameObject.Find("Audio Source").GetComponent();
	}	
	/// 

	/// 点击音量按钮，第一次开启，第二次关闭
	/// 
	public void AudioTrue()
	{
        if (a)
        {
			audioGameObject.SetActive(true);
			a = false;
		}
        else
        {
			audioGameObject.SetActive(false);
			a = true;
		}
		
	}
	public void OnEnable()
	{
		BtnReStart.onClick.AddListener(ClickReStart);
		BtnReStart.onClick.AddListener(ClickReStart);
		//BtnX.onClick.AddListener(ClickBtnX);
		BtnPlay.onClick.AddListener(ClickKaishi);
		BtnPause.onClick.AddListener(ClickZanting);
		Btn_Audio.onClick.AddListener(AudioTrue);
	}
	public void OnDisable()
	{
		BtnReStart.onClick.RemoveListener(ClickReStart);
		BtnReStart.onClick.RemoveListener(ClickReStart);
		//BtnX.onClick.RemoveListener(ClickBtnX);
		BtnPlay.onClick.RemoveListener(ClickKaishi);
		BtnPause.onClick.RemoveListener(ClickZanting);
		Btn_Audio.onClick.RemoveListener(AudioTrue);
		audioGameObject.SetActive(false);
	}
	// Use this for initialization
	void Start()
	{
		ClickKaishi();//是否自动播放

		tt = (float)vPlayer.clip.length;

		sliderVideo.maxValue = tt;

		min = (int)tt / 60;
		second = (int)tt % 60;
		TotalTime.text = string.Format("{0:D2}:{1:D2}", min.ToString(), second.ToString());

		AudioChange();
	}
	void Update()
	{
		//播放
		if (IsPlay)
		{
			vPlayer.Play();
			Index_t += Time.deltaTime;
			if (Index_t >= 0.1f)
			{
				sliderVideo.value += 0.1f;
				Index_t = 0;
			}
		}
		else
		{
			vPlayer.Pause();
		}
		//进度条到底停止播放
		if (sliderVideo.maxValue - sliderVideo.value <= 0.1f)
		{
			ClickReStart();
		}
		ChangeTime((float)vPlayer.time);
		AudioChange();
	}
	/// 

	/// 更改视频音量，同时赋值给音量文字
	/// 
	private void AudioChange()
	{
		AudioNum.text = ((int)Audio_Slider.value * 100).ToString() + "%";
		audioSource.volume = Audio_Slider.value;
	}
	public void ChangeVideo(float value)
	{
		vPlayer.time = value;
	}
	/// 

	/// 播放时间显示
	/// 
	/// 
	void ChangeTime(float value)
	{
		min = (int)value / 60;
		second = (int)value % 60;
		NowTime.text = string.Format("{0:D2}:{1:D2}", min.ToString(), second.ToString());
	}
	/// 

	/// 重播按钮
	/// 
	public void ClickReStart()
	{
		sliderVideo.value = 0;
		vPlayer.time = 0;
	}
	/ 

	/ 关闭按钮
	/ 
	//public void ClickBtnX()
	//{
	//	VideoPanel.gameObject.SetActive(false);
	//}
	/// 

	/// 开始按钮
	/// 
	public void ClickKaishi()
	{
		if (sliderVideo.value == sliderVideo.maxValue)
		{
			sliderVideo.value = 0;
		}
		videoImage.SetActive(true);
		IsPlay = true;
        BtnPause.gameObject.SetActive(true);
        BtnPlay.gameObject.SetActive(false);
    }
	/// 

	/// 暂停按钮
	/// 
	public void ClickZanting()
	{
		IsPlay = false;
        BtnPause.gameObject.SetActive(false);
        BtnPlay.gameObject.SetActive(true);
    }

}