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Editorial Team
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Asked: 2026-05-28T13:48:29+00:00

I am playing youtube video on iPad via webView using this code. NSString *htmlString

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I am playing youtube video on iPad via webView using this code.

NSString *htmlString = [NSString stringWithFormat:@"<html>\
                        <body>\
                          <div id=\"player\"> </div>\
                          <script>\
                            var tag = document.createElement('script');\
                            tag.src = \"http://www.youtube.com/player_api\";\
                            var firstScriptTag = document.getElementsByTagName('script')[0];\
                            firstScriptTag.parentNode.insertBefore(tag, firstScriptTag);\
                            var done = false;\
                            var player;\
                            function onYouTubePlayerAPIReady() {\
                               player = new YT.Player('player', {\
                               height: '%i',\
                               width: '%i',\
                               videoId: '%@',\
                               events: {\
                                'onReady': onPlayerReady,\
                                'onStateChange': onPlayerStateChange\
                                }\
                              });\
                            }\
                            function onPlayerReady(evt) {\
                                evt.target.playVideo();\
                            }\
                            function onPlayerStateChange(evt) {\
                                if(evt.data==0)\
                                {\
                                      window.location=\"http:\\end\";\
                                 }\
                             }\
                             function resizePlayer(width,height)\
                             {\
                                   player.setSize(width, height);\
                             }\
                           </script>\
                        </body>\
                     </html>",
                        height,width, videoID];

The problem is that when I’m installing my app via xCode it works fine, but when I’m using ipa file it don’t.

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1 Answer

  1. Editorial Team

    I have found what caused my problem.

    To allow my application to catch a moment when video reaches the end, I wrote Javascript code to redirect page to another URL. Then I implemented method from WebViewProtocol -(BOOL)webView:(UIWebView *) shouldStartLoadWithREquest:(NSURLRequest *) navigationType:(UIWebViewNavigationType)navigationType. The main idea was to close view when it tries to go to some special link, but I’ve made one mistake that for some unknown reason didn’t raised when I launch my app from XCode.

    Code with error:

    -(BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request     navigationType:(UIWebViewNavigationType)navigationType
{
     NSString *url = [[request URL] absoluteString];
if ([url isEqualToString:@"http://youtube.com/end"])
{
    [self onCloseVideo];
    [self unsubscribe];
    return = NO;
} 
//here on else I had to return YES but I didn't
}

    Code without error:

    -(BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request     navigationType:(UIWebViewNavigationType)navigationType
{
     NSString *url = [[request URL] absoluteString];
     BOOL shouldStartRequest = YES;
if ([url isEqualToString:@"http://youtube.com/end"])
{
    [self onCloseVideo];
    shouldStartRequest = NO;
}               

return shouldStartRequest;
}
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