YouTube Javascript API onstateChange事件问题

Question

我的javascript：

function onYouTubePlayerReady()
{
  playerObj = document.getElementById("player_embed");
  playerObj.addEventListener("onStateChange", test);

  // Make sure the document is loaded before any DOM-manipulation
  $(document).ready(function() {

      // Update player information every 500ms
      setInterval(updatePlayerInfo, 500);

  });
}

function test(newState)
{
    alert(newState);
}

我的视频被正确加载，我可以通过我的javascript来控制它们。但是，onStateChange事件似乎从未触发过。当我播放/停止/暂停视频时，它从来不会发出警报。有谁有解决方案/类似的问题？

Answer 1

必须将函数名作为字符串传递给addEventListener。

playerObj.addEventListener("onStateChange", "test");

Answer 2

此格式用于JQuery，但逻辑相同，请在onYouTubePlayerReady内创建一个函数来传递playerId

$(document).ready(function() {              
    onYouTubePlayerReady = function(playerId) {
        eventHandler=function(state){onStateChangeID(state,playerId);}
        playerObj = document.getElementById("player_embed");
        playerObj.addEventListener('onStateChange','eventHandler',false);
    }
    onStateChangeID=function(newState,playerId) {
        console.log("onStateChange: ("+playerId+") " + newState);
    }
});