删除document.onfullscreenchange全屏API

Question

我有一个页面，用于检查用户是否离开了全屏。我想删除/销毁此事件观察者，但无法找到我如何在描述上执行此操作 API Description  这是我的代码：

  //create black background and disable scrolling
  $rootScope.fullScreen = !$rootScope.fullScreen;

  //make div fullScreen (Browser Native)
  if($rootScope.fullScreen == true) {
    var videoWindow = document.getElementById("full-screen");
    if (videoWindow.requestFullscreen) {
      videoWindow.requestFullscreen();
    }

      //check if user has closed fullscreen
      document.onwebkitfullscreenchange = function ( event ) {
        if(!document.webkitFullscreenElement) {
          $rootScope.fullScreen = false;
          //REMOVE THE EVENTHANDLER - STOP WATCHING!
          ?????????

        }
      };

Answer 1

您打算删除活动的目的是什么？

document.onwebkitfullscreenchange = null;

应该有用。