在 Iframe 嵌入上，单击显示 div 或计数器启动

Question

当我点击youtube嵌入Iframe时，我正在尝试显示或开始计数。这是我的代码

    <iframe id="startcount" width="900" height="400" src="https://www.youtube.com/embed/qAM8wEHPccU" frameborder="0" allowfullscreen></iframe>
    <span align="center" style="color:#0091bf; font-weight:bold; font-size:24px;">You will be redirected in 
    <span id="counter">30</span> second(s) for credit verification. </span>
    <script type="text/javascript">

    $(document).ready(
    function() {
        $("#startcount").click(function() {
                function countdown() {
                var i = document.getElementById('counter');
                if (parseInt(i.innerHTML)<=0) {
                //location.href = 'earn_credit_ac.php?ads_id=<?php echo $del_id; ?>';
                }
                i.innerHTML = parseInt(i.innerHTML)-1;
                }
                setInterval(function(){ countdown(); },1000);
                });
    });

    </script>

1. 点击YouTube嵌入式视频iframe
2. 开始计数

帮助我，我是jquery的新手。

感谢大家

Answer 1

如果你正在倒计时，那么你应该检查该值是否大于 0，而不是小于 0。以下代码应该有效：

$(document).ready(function() {
      $("#startcount").click(function() {
        function countdown() {
          var i = $("#counter");
          var value = parseInt(i.html());
          var interval;
          if (value >= 0) { // I think you want "greater equal" (>=) instead of "less equal" (<=)
            //location.href = 'earn_credit_ac.php?ads_id=<?php echo $del_id; ?>';
          }
          else {
              clearInterval(interval); // stop interval if counted to -1
          }
          i.html(value - 1);
        }
        setInterval(countdown, 1000);
      });
    });

Answer 2

我正在使用另一种方法来完成此任务。

目录 ：

  <button id="play-button" class="btn mobile-full" style="padding:10px;"> Play </button>
  <iframe id="video" src="//www.youtube.com/embed/NV16WtEXP6E?autohide=2&border=0&wmode=opaque&enablejsapi=1&modestbranding=1&controls=0&showinfo=1&rel=0" frameborder="0" allowfullscreen></iframe>
  <div align="center">
  <span align="center" style="color:#0091bf; font-weight:bold; font-size:24px;">You will be redirected in 
 <span id="counter"><?php echo $vid_duration; ?></span> second(s) for credit verification. </span>
 </div>

css ：

.button {
  width: 48px;
  height: 48px;
  cursor: pointer;
  &:hover {
    fill: white; 
  }
}
.defs {
  position: absolute;
  top: -9999px;
  left: -9999px;
}
iframe {
  float: left;
  width: 300px;
  height: 200px;
}
.buttons {
  padding: 1rem;
  background: #f06d06;
  float: left;
}

JavaScript ：

<script>
// https://developers.google.com/youtube/iframe_api_reference
// global variable for the player
var player;
// this function gets called when API is ready to use
function onYouTubePlayerAPIReady() {
  // create the global player from the specific iframe (#video)
  player = new YT.Player('video', {
    events: {
      // call this function when player is ready to use
      'onReady': onPlayerReady
    }
  });
}
function onPlayerReady(event) {
  // bind events
  var playButton = document.getElementById("play-button");
  playButton.addEventListener("click", function() {
    player.playVideo();
    function countdown() {
        var i = document.getElementById('counter');
        if (parseInt(i.innerHTML)<=0) {
            location.href = 'earn_credit_ac.php?ads_id=<?php echo $del_id; ?>';
        }
        i.innerHTML = parseInt(i.innerHTML)-1;
    }
    setInterval(function(){ countdown(); },1000);
  });

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

</script>

这是在移动设备上播放YouTube视频并同时启动时间计数器的唯一方法。

谢谢大家.