播放YouTube视频时执行JavaScript函数(使用YouTube API)



我正在使用以下代码在我的页面上嵌入一个youtube视频:

<iframe width="400" height="300" id="newvid" src="http://www.youtube.com/embed/url?modestbranding=1&showinfo=0&feature=player_embedded&fs=0&iv_load_policy=3&rel=0" frameborder="0"></iframe>

我正在尝试使用Youtube API,因此一旦用户播放视频,将执行javascript函数,但以下代码不起作用,因为我在单击视频时没有看到任何警报显示:

<script src="https://www.youtube.com/iframe_api"></script>
<script>
      var player;
      function onYouTubeIframeAPIReady() {
        player = new YT.Player('newvid', {
          events: {
            'onStateChange': function(event) {
              if (event.data == YT.PlayerState.PLAYING) {
                  myFunction();
              }
            }
          }
        });
      }
</script>
<script>
function myFunction() {
    alert("I am an alert box!");
}
</script>  

应该设置div容器而不是选择iFrame。(这可能无法在代码段容器中正确运行,但请在您的代码中尝试)。

<div id="newvid"></div>
<script src="https://www.youtube.com/iframe_api"></script>
<script>
      var player;
      function onYouTubeIframeAPIReady() {
        player = new YT.Player('newvid', {
          height: '300',
          width: '400',
          videoId: 'SwxdBiazu8M', // Example video ID
          events: {
            'onStateChange': function(event) {
              if (event.data == YT.PlayerState.PLAYING) {
                  myFunction();
              }
            }
          }
        });
      }
</script>
<script>
function myFunction() {
    alert("I am an alert box!");
}
</script>

下面的代码演示和执行JS function使用enablejsapiiframe -

<!doctype html>
<html>
<body>
<iframe id="ytplayer" type="text/html" width="640" height="390" src="https://www.youtube.com/embed/YtF6p_w-cSc?autoplay=1&controls=0&enablejsapi=1" frameborder="0"></iframe>
<script>
  // Load the IFrame Player API code asynchronously.
  var tag = document.createElement('script');
  tag.src = "https://www.youtube.com/iframe_api";
  var firstScriptTag = document.getElementsByTagName('script')[0];
  firstScriptTag.parentNode.insertBefore(tag, firstScriptTag);
  // Replace the 'ytplayer' element with an <iframe> and
  // YouTube player after the API code downloads.
  var player;
  function onYouTubePlayerAPIReady() {  
    player = new YT.Player('ytplayer', {
      height: '390',
      width: '640',      
      events: {
            'onStateChange': function(event) {
              if (event.data == YT.PlayerState.PLAYING) {
                  myFunction();
              }
            }
          }  
    });           
  }
  function myFunction() {
    alert("I am an alert box!");
}
</script>
</body>
</html>

这是JSFiddle

根据上面的代码,一旦playerstatePLAYING, JS function将被调用。希望这将有助于你和你正在寻找相同的。还有,如果你有任何问题,请告诉我。

谢谢. . !

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