([javaScript]在iOS中通过HTML5浏览器访问摄像头

navigator.mediaDevices.getUserMedia({ video: true })
  .then(function(stream) {
    // 获取到摄像头视频流后的处理逻辑
  })
  .catch(function(error) {
    // 处理错误情况
  });

var videoElement = document.getElementById('video');

videoElement.srcObject = stream;

// 拍照
var canvasElement = document.getElementById('canvas');
var context = canvasElement.getContext('2d');

context.drawImage(videoElement, 0, 0, canvasElement.width, canvasElement.height);

// 录制视频
var recordedChunks = [];

var mediaRecorder = new MediaRecorder(stream);

mediaRecorder.ondataavailable = function(event) {
  recordedChunks.push(event.data);
};

mediaRecorder.start();

// 停止录制
mediaRecorder.stop();