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							<!DOCTYPE html>
<html lang="en">
	<head>
		<meta charset="UTF-8">
		<meta http-equiv="X-UA-Compatible" content="IE=edge">
		<meta name="viewport" content="width=device-width, initial-scale=1.0">
		<link rel="stylesheet" type="text/css" href="./css/index.css" />
		<title>IM通话</title>
		<style>
		html, body {
		    height: 100%;
		}
		body {
		    margin: 0;
		}
		video {
		    width: 100%;
		    height: 100%;
		    position: absolute;
		    left: 0;
		    top: 0;
		    z-index: -1;
		}
		
		</style>
	</head>
	<body>
		<video class="Bvideo" id="Big_video" autoplay></video>
		<!-- <video class="Svideo" id="sm_video"  preload muted autoplay onclick="Svideoselc()"></video> -->
		<!-- <audio id="my_audio" autoplay></audio> -->
		 <div class="bottomView" style="width: 100%;">
			 <div class="contentColumnC">
				 <img class="guadanImg" style="margin-top: 5px;" src="./img/guaduandd.png" alt="" onclick="guaduan()"/>
				 <div class="contentInRowC" style="width: 100%;margin-top: 10px;">
					 <div id="markNote"></div>
					 <img class="calling" src="./img/loading2.gif" alt="" />
				 </div>
			 </div>
		 </div>
	</body>
	<script type="text/javascript" src="./js/lib/uniwebviewsdk.js"></script>
	<script>
	let localStream = null;
	let localCall = 0;
	let localCandidata=null;
	let peer = null;
	let video=null;
	//const Big_video = document.getElementById('Big_video');
	// const sm_video = document.getElementById('sm_video');
	// const my_audio = document.getElementById('my_audio');
	const markNote = document.getElementById('markNote');
	//====================================================
	// function Bvideoselc(){
	// 	if(localStream!=null){
	// 		//Big_video.srcObject =localStream;
	// 		Big_video.setAttribute('autoplay', true); /* THIS */
	// 	}
	// }
	function Svideoselc(){
		if(localStream!=null){
			//sm_video.srcObject =localStream;
			sm_video.setAttribute('autoplay', true); /* THIS */
		}
		
	}
	function guaduan(){
		uni.postMessage({
		    data: {
		        data:'', // 回传
				type:88
		    },
		});
	}
	//====================================================
	function appAct (obj) {
		if(obj.type==1){//主动发起im通话
			localCall=1;
			startWebRct(obj.type);
			markNote.innerHTML='拨打中'
		}
		else if(obj.type==2){//收到推送消息
			if(localCall==1){
				markNote.innerHTML='接通中'
				RCremoteData(obj.payload);
			}
			else{
				RCstartWebRct(obj.payload);
			}
		}
		else if(obj.type==3){//收到candidate
			markNote.innerHTML='接通中'
			for(var i=0;i<obj.payload.length;i++){
				peer.addIceCandidate(obj.payload[i]);
			}
			if(localCall!=1){
				uni.postMessage({
				    data: {
				        data:localCandidata, //应答方回应candidate
						type:3
				    },
				});
			}
			
		}
	}
	
	async function startCapture(displayMediaOptions) {
	    try {
	        localStream = await navigator.mediaDevices.getUserMedia(displayMediaOptions);
			// var otherVideos = document.querySelector('#Big_video');
			// otherVideos.srcObject = localStream;
			uni.postMessage({
			    data: {
			        data:'', // 回传
					type:99
			    },
			});
	    } catch(err) {
	        console.error(err);
	    }
	}
	async function startWebRct(type){
		peer = new RTCPeerConnection(
			{
				iceServers:[
					{
						urls:'stun:stun.l.google.com:19302',
					}
				]
			}
		);
		//添加本地音视频
		localStream.getTracks().forEach((track) => {
		  peer.addTrack(track, localStream)
		});
		//创建本地offer
		const offer = peer.createOffer({
			offerToReceiveAudio:1,
			offerToReceiveVideo:1
		});
		//记录本地offer
		offer.then(value => {
			peer.setLocalDescription(value);
			uni.postMessage({
			    data: {
			        data:value, // 回传并推送offer
					type:2
			    },
			});
		}).catch(error => {
		});
		peer.oniceconnectionstatechange = function (ev) {
			if(peer.connectionState=="closed"){
				markNote.innerHTML='结束通话'
			}
			if(peer.connectionState=="connected"){
				markNote.innerHTML='已接通'
			}
			if(peer.connectionState=="connecting"){
				markNote.innerHTML='连接中'
			}
			if(peer.connectionState=="disconnected"){
				markNote.innerHTML='对方挂断'
			}
		};
		localCandidata=[]
		peer.onicecandidate = function (event) {
		  if (event.candidate){
			localCandidata.push(event.candidate);
		  }
		}
		startCommunicate();
	}
	
	async function RCremoteData(rcData){//收到remoteAnswer
		//记录远端offer
		await peer.setRemoteDescription(rcData)
		
		uni.postMessage({
		    data: {
		        data:localCandidata, // 发起方先发candidate
				type:3
		    },
		});
	}
	function startCommunicate(){
		peer.ontrack = (e) => {
			if(e.streams[0]){
				//var otherVideos = document.querySelector('#my_audio');
				var otherVideos = document.querySelector('#Big_video');
				otherVideos.srcObject = e.streams[0];
				//markNote.innerHTML=e.streams[0];
				//Big_video.srcObject=e.streams[0];
				//Big_video.setAttribute('autoplay', true); /* THIS */
			}
			
			// sm_video.srcObject =localStream;
			// sm_video.setAttribute('autoplay', true); /* THIS */
			
			
			// if(video!=null){
			// 	video.srcObject = e.streams[0];
			// 	video.setAttribute('autoplay', true); /* THIS */
			// }
			// else{
			// 	video = document.createElement("video");
			// 	video.srcObject = e.streams[0];
			// 	video.setAttribute('autoplay', true); /* THIS */
			// 	document.body.appendChild(video);
			// }
		}
	}
	async function RCstartWebRct(payload){
		peer = new RTCPeerConnection(
			{
				iceServers:[
					{
						urls:'stun:stun.l.google.com:19302',
					}
				]
			}
		);
		//添加本地音视频
		localStream.getTracks().forEach((track) => {
		  peer.addTrack(track, localStream)
		})
		localCandidata=[];
		peer.onicecandidate = function (event) {
		  if (event.candidate){
			//let strcandidate=JSON.stringify(event.candidate);
			localCandidata.push(event.candidate);
		  }
		}
		startCommunicate();
		//记录远端offer
		await peer.setRemoteDescription(payload)
		
		const remoteAnswer = await peer.createAnswer();
		//记录本地offer
		await peer.setLocalDescription(remoteAnswer);
		//推送remoteAnswer
		uni.postMessage({
		    data: {
		        data:remoteAnswer, // 回传并推送offer
				type:2
		    },
		});
		
	}
	function initRtc() {
		markNote.innerHTML='IM通话'
		setTimeout(() => {
			startCapture({ video: true, audio: true});
			//startCapture({audio: true});
		}, 1000)
		return;
	}
	function releaseTack(){
		if(peer){
			peer.close();
		}
	}
	window.onload=initRtc;
	window.onunload=releaseTack;
	</script>
	
</html>