Embedding YouTube videos on
I've embedded a video f开发者_开发百科rom 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?
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 );
Here is the sample code, its working fine on iOS 5 and later, this is the new implementation which Youtube API provided, myWeb is a UIWebView here.
showinfo=0 in URL will remove the top header in the videoView.
NSString *html = [NSString stringWithFormat:@"<html><body><iframe class=\"youtube-player\" type=\"text/html\" width=\"%f\" height=\"%f\" src=\"http://www.youtube.com/embed/q1091sWVCMI?HD=1;rel=0;showinfo=0\" allowfullscreen frameborder=\"0\" rel=nofollow></iframe></body></html>",frame.size.width,frame.size.height];
[myWeb loadHTMLString:html baseURL:nil];
Hope this helps you :)
Here's a version that works in iOS 6 and with the new YouTube embed code:
- (void)embedYouTube:(NSString *)urlString frame:(CGRect)frame {
NSString *html = [NSString stringWithFormat:@"<html><head><style type='text/css'>body {background-color: transparent;color: white;}</style></head><body style='margin:0'><iframe width='%f' height='%f' src='%@' frameborder='0' allowfullscreen></iframe></body></html>", frame.size.width, frame.size.height, urlString];
UIWebView *videoView = [[UIWebView alloc] initWithFrame:frame];
[videoView loadHTMLString:html baseURL:nil];
[self.view addSubview:videoView];
}
For those using Monotouch and C#, you can add this class to your project and use it to view your videos:
public class YouTubeViewer : UIWebView
{
public YouTubeViewer(string url, RectangleF frame)
{
string youTubeVideoHTML = @"<object width=""{1}"" height=""{2}""><param name=""movie""
value=""{0}""></param><embed
src=""{0}"" type=""application/x-shockwave-flash""
width=""{1}"" height=""{2}""</embed></object>";
string html = string.Format(youTubeVideoHTML, url, frame.Size.Width, frame.Size.Height);
this.LoadHtmlString(html, null);
this.Frame = frame;
}
}
Make sure the URL you pass it, is the URL from the embed code provided from Youtube when you click the Share button. (And check the check-box for the old code)
Swift Implementation:
let webView = UIWebView(frame: self.view.frame) // Position your player frame here
self.view.addSubview(webView)
self.view.bringSubviewToFront(webView)
// Playback options: play in-line and start playing immediately
webView.allowsInlineMediaPlayback = true
webView.mediaPlaybackRequiresUserAction = false
// Set the id of the video you want to play
let videoID = "zN-GGeNPQEg" // https://www.youtube.com/watch?v=zN-GGeNPQEg
// Set up your player
let embededHTML = "<html><body style='margin:0px;padding:0px;'><script type='text/javascript' src='http://www.youtube.com/iframe_api'></script><script type='text/javascript'>function onYouTubeIframeAPIReady(){ytplayer=new YT.Player('playerId',{events:{onReady:onPlayerReady}})}function onPlayerReady(a){a.target.playVideo();}</script><iframe id='playerId' type='text/html' width='\(self.view.frame.size.width)' height='\(self.view.frame.size.height)' src='http://www.youtube.com/embed/\(videoID)?enablejsapi=1&rel=0&playsinline=1&autoplay=1' frameborder='0'></body></html>"
// Load the HTML into your UIWebView
webView.loadHTMLString(embededHTML, baseURL: NSBundle.mainBundle().bundleURL)
Alternatively, YouTube provides a great helper class for devs to set up YouTube playback in their iOS which sets up the UIWebView for you.
swift 4
func embedYouTube(_ urlString: String, frame: CGRect) {
let html = "<html><head><style type='text/css'>body {background-color: transparent;color: white;}</style></head><body style='margin:0'><iframe width='\(frame.size.width)' height='\(frame.size.height)' src='\(urlString)' frameborder='0' allowfullscreen></iframe></body></html>"
let videoView = UIWebView(frame: frame)
videoView.loadHTMLString(html, baseURL: nil)
view.addSubview(videoView)
}
加载中,请稍侯......
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