遇到youtube播放器api的麻烦

时间:2013-06-09 18:51:03

标签: javascript ruby-on-rails youtube-api youtube-javascript-api

我尝试在我的rails应用中实现的功能是用户可以控制嵌入的YouTube视频。我正在使用youtube播放器api(指南:https://developers.google.com/youtube/iframe_api_reference)。

在指南中,它总是创建一个新的YT播放器:

// 3. This function creates an <iframe> (and YouTube player)
  //    after the API code downloads.
  var player;
  function onYouTubeIframeAPIReady() {
    player = new YT.Player('player', {
      height: '390',
      width: '640',
      videoId: 'M7lc1UVf-VE',
      events: {
        'onReady': onPlayerReady,
        'onStateChange': onPlayerStateChange
      }
    });
  }

我的问题是如何使用外部“播放”按钮播放已嵌入的YouTube视频。 错误发生在player = new YT.Player行。我不想制作新的播放器,只需控制已经嵌入的视频。

var player;
function onYouTubePlayerAPIReady() {
    player = new YT.Player('video', {  
      events: {
        'onReady': onPlayerReady
      }
    });
}

function onPlayerReady(event){
  event.target.playVideo();
    document.id("start").click(function () {
      player.playVideo();
    });    

  }
var tag = document.createElement('script');
tag.src = "//www.youtube.com/player_api";
var firstScriptTag = document.getElementsByTagName('script')[0];
firstScriptTag.parentNode.insertBefore(tag, firstScriptTag);

我的iframe:
    <iframe title="YouTube video player" id="video" width="540" height="290" src="http://www.youtube.com/embed/#{ youtube_id }?rel=0&enablejsapi=1" frameborder="0" allowfullscreen></iframe>

带有播放按钮的标题视图:

<div id="start">
  <%= image_tag("playback_play.png")  %>
</div>

(rails app)

如果您需要更多代码,请告诉我,谢谢您的帮助!

1 个答案:

答案 0 :(得分:0)

不是您问题的直接答案,而是潜在的解决方案:

<div id="player"></div>
<div id="start" style="display: none;">
  <%= image_tag("playback_play.png")  %>
</div>

<script>
function onYouTubePlayerAPIReady() {
  player = new YT.Player('player', {
    height: '390',
    width: '640',
    videoId: '#{ youtube_id }', // not sure if you want that or <%= youtube_id %> in this case
    events: {
      'onReady': onPlayerReady,
      'onStateChange': onPlayerStateChange
    }
  });
}

function onPlayerReady(event){
  //event.target.playVideo(); // commented out -- uncomment if you want autoplay
  document.id("start").show();
}

var tag = document.createElement('script');
tag.src = "//www.youtube.com/player_api";
var firstScriptTag = document.getElementsByTagName('script')[0];
firstScriptTag.parentNode.insertBefore(tag, firstScriptTag);
</script>