Programmatically force a UIWebView to go to full screen mode

ios, nsnotificationcenter, uiwebview, youtube-api, youtube-javascript-api

Solution

To force videos to always play in fullscreen, when configuring your `UIWebView`, use this line of code:

webView.allowsInlineMediaPlayback = NO;

It looks like there are a few ways to detect entering and leaving fullscreen, though it seems like these are not recommended approaches. See the linked StackOverflow question.

Depending on what you're trying to do, it almost seems like you're better off detecting player state change using the `onStateChange` callback. In a project I'm working on, the code looks like this:

        function onStateChange(event) {
        window.location.href = 'ytplayer://onStateChange?data=' + event.data;
    }

Then I sniff for this URL in the controller or view wrapper class:

- (BOOL)webView:(UIWebView *)webView
shouldStartLoadWithRequest:(NSURLRequest *)request
            navigationType:(UIWebViewNavigationType)navigationType {
if([request.URL.scheme isEqualToString:@"ytplayer"]) {
    NSString *action = request.URL.host;

Problem

When playing a media file in a UIWebview (youtube for instance) there is a button to "fullscreen" the html5 media player - How can I - Know when the player went to full screen - Force the HTML5 player to go to full screen

Original source