iphone - Embedding YouTube videos on

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iphone - Embedding YouTube videos on

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

iphone - Embedding YouTube videos on

I've embedded a video from YouTube via a snippet I've found on the Internet, here is the code that I've used:

    @interface FirstViewController (Private)
- (void)embedYouTube:(NSString *)urlString frame:(CGRect)frame;
@end


@implementation FirstViewController

- (void)viewDidLoad {
    [super viewDidLoad];

    [self embedYouTube:@"http://www.youtube.com/watch?v=l3Iwh5hqbyE" frame:CGRectMake(20, 20, 100, 100)];
}


- (void)embedYouTube:(NSString *)urlString frame:(CGRect)frame {
    NSString *embedHTML = @"
    <html><head>
    <style type="text/css">
    body {
    background-color: transparent;
    color: white;
    }
    </style>
    </head><body style="margin:0">
    <embed id="yt" src="%@" type="application/x-shockwave-flash" 
    width="%0.0f" height="%0.0f"></embed>
    </body></html>";
    NSString *html = [NSString stringWithFormat:embedHTML, urlString, frame.size.width, frame.size.height];
    UIWebView *videoView = [[UIWebView alloc] initWithFrame:frame];
    [videoView loadHTMLString:html baseURL:nil];
    [self.view addSubview:videoView];
    [videoView release];
}


- (void)didReceiveMemoryWarning {
    // Releases the view if it doesn't have a superview.
    [super didReceiveMemoryWarning];

    // Release any cached data, images, etc that aren't in use.
}

- (void)viewDidUnload {
    // Release any retained subviews of the main view.
    // e.g. self.myOutlet = nil;
}


- (void)dealloc {
    [super dealloc];
}

@end

It compiles correctly and when I open it, I see a white box positioned incorrectly, which the code created. I have two questions regarding it:

How do I know if the video will play, it is just a plain white box, does the simulator play videos from YouTube?
How can I position this box?

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1 Answer

深蓝 · Answer 1 · 2021-10-16T22:35:20+0000

Just tested your code, it works fine on an iPhone, Youtube videos are not supported on the iOS simulator though, so you'll need a real device for testing.

How can I position this box?

You are already passing the X (20), Y(20), width(100) and height(100) of the box at this line:

[self embedYouTube:@"http://..." frame:CGRectMake(20, 20, 100, 100)];

To change the position of the view afterwards, you modify its center property:

videoView.center = CGPointMake(200, 100 );

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