我开始编写一个Web应用程序,该应用程序将允许用户注释带有某些事件的嵌入式YouTube视频。我希望用户能够暂停视频,提起候选事件菜单(例如,作为模态(,并保存所选事件以及该事件发生在数据库中的视频中的相关时间。
我不知道如何检索按下暂停按钮的时间。
我假设YouTube API将是这样做的地方,但是我花了大约两个小时的时间探索并找不到潜在客户。有什么建议吗?适合初学者的良好访问教程/示例?
您可以使用youtube iframe api使用player.getCurrentTime()
在状态PAUSED
上获得当前时间:
html:
<iframe id="video" src="https://www.youtube.com/embed/CaksNlNniis?enablejsapi=1&html5=1&" frameborder="0" allowfullscreen="0"></iframe>
<input id="pause" type="submit" value="pause" />
<input id="play" type="submit" value="play" />
javaScript:
var player;
function onYouTubeIframeAPIReady() {
player = new YT.Player('video', {
events: {
'onReady': onPlayerReady,
'onStateChange': onPlayerStateChange
}
});
}
function onPlayerStateChange(event) {
if (event.data == YT.PlayerState.PAUSED) {
console.log(player.getCurrentTime());
}
}
function onPlayerReady(event) {
document.getElementById("pause").addEventListener("click", function() {
player.pauseVideo();
});
document.getElementById("play").addEventListener("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);
您可以在此处找到一个工作的JSFIDDLE
由于PAUSED
状态也可以通过单击按钮独立触发,因此您也可以在调用player.pauseVideo()
之前存储当前时间:
html:
<iframe id="video" src="https://www.youtube.com/embed/CaksNlNniis?enablejsapi=1&html5=1&" frameborder="0" allowfullscreen="0"></iframe>
<input id="pause" type="submit" value="pause" />
<input id="play" type="submit" value="play" />
<ul id="timing"></ul>
javaScript:
var player;
var timeList;
var count = 0;
function onYouTubeIframeAPIReady() {
player = new YT.Player('video', {
events: {
'onReady': onPlayerReady,
'onStateChange': onPlayerStateChange
}
});
}
function onPlayerStateChange(event) {}
function onPlayerReady(event) {
document.getElementById("pause").addEventListener("click", function() {
logTime();
player.pauseVideo();
});
document.getElementById("play").addEventListener("click", function() {
player.playVideo();
});
}
document.addEventListener("DOMContentLoaded", function(event) {
timeList = document.getElementById("timing");
});
function logTime() {
count++;
var time = player.getCurrentTime();
var newTime = document.createElement('li');
var textNode = document.createTextNode('pause ' + count + ' - ' + time + " ");
var buttonNode = document.createElement('button');
buttonNode.addEventListener("click", function() {
console.log("go to " + time);
player.seekTo(time);
player.playVideo();
});
var btnText = document.createTextNode("go back");
buttonNode.appendChild(btnText);
newTime.appendChild(textNode);
newTime.appendChild(buttonNode);
buttonNode.appendChild(btnText);
timeList.appendChild(newTime);
}
var tag = document.createElement('script');
tag.src = "//www.youtube.com/player_api";
var firstScriptTag = document.getElementsByTagName('script')[0];
firstScriptTag.parentNode.insertBefore(tag, firstScriptTag);
检查此小提琴