Make youtube video fullscreen using iframe and jav

问题:

I have an embedded youtube video with hidden controls:

<iframe id="ytplayer" type="text/html" width="400" height="225"
src="http://www.youtube.com/embed/dMH0bHeiRNg?rel=0&controls=0&showinfo=0
&loop=1&hd=1&modestbranding=1&enablejsapi=1&playerapiid=ytplayer"
frameborder="0" allowfullscreen></iframe>

I can control it with the youtube Javascript API.

var tag = document.createElement('script');

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

var player;
function onYouTubeIframeAPIReady() {
player = new YT.Player('ytplayer', {
  events: {
    'onReady': onPlayerReady,
    'onStateChange': onPlayerStateChange
  }
});
}

Things like player.playVideo() and so on work perfectly. Now I am looking for a way to make the video play in fullscreen mode with a Javascript call but I couldn't find any method in the API.

Is it even possible (without the controls) and if so - how?

回答1:

I've added code to do fullscreen (real full screen, not full window) to my answer on Auto-Full Screen for a Youtube embed.

YouTube don't expose fullscreen in their API, but you can call the native browser requestFullScreen() function from the playerStateChange() event from the YouTube API or make your own custom play button like I have.

回答2:

You can use html5 fullscreen api:

node.requestFullScreen();
document.cancelFullScreen();
document.fullScreen; // bool

But note that:

• this usually requires vendor specific prefix like mozRequestFullScreen() or webkitRequestFullScreen
• requestFullScreen has to be called on user events (like onclick)
• in firefox the fullscreen will be black until "Allow" is clicked by user

回答3:

This worked perfect in my case. You can find more details on this link: demo on CodePen

var player, iframe;
var $ = document.querySelector.bind(document);

// init player
function onYouTubeIframeAPIReady() {
  player = new YT.Player('player', {
    height: '200',
    width: '300',
    videoId: 'dQw4w9WgXcQ',
    events: {
      'onReady': onPlayerReady
    }
  });
}

// when ready, wait for clicks
function onPlayerReady(event) {
  var player = event.target;
  iframe = $('#player');
  setupListener(); 
}

function setupListener (){
$('button').addEventListener('click', playFullscreen);
}

function playFullscreen (){
  player.playVideo();//won't work on mobile

  var requestFullScreen = iframe.requestFullScreen || iframe.mozRequestFullScreen || iframe.webkitRequestFullScreen;
  if (requestFullScreen) {
    requestFullScreen.bind(iframe)();
  }
}

回答4:

Looking at the API reference for the iframe player, I don't think it's possible to set it to fullscreen (with the iframe API alone)- ctrl f didn't find fullscreen, so either it's a secret method hidden inside the API or it doesn't exist. However, as you probably know, you can set the size of the player player.setSize(width:Number, height:Number):Object, then make the window fullscreen.

回答5:

Maybe have a look at this similar question. It looks as though this might work for you (using the javascript fullscreen api rather than the Youtube API):

Full Screen Option in Chromeless player using Javascript?

回答6:

You can try setting the iframe dimension to the window dimension through javascript.

Something like this (using jQuery):

$('ytplayer').attr('width', $(window).width());
$('ytplayer').attr('height', $(window).height());

I hope this can help you.