我正在尝试在iOS上嵌入youtube视频,以便当用户点击按钮时,显示YouTube视频而不会放弃应用,视频完成后,用户将返回到应用。我在网上找到了一个如何做到这一点的教程,我跟着它。我创建了一个YouTubeView:
#import "YouTubeView.h"
@implementation YouTubeView
- (YouTubeView *)initWithStringAsURL:(NSString *)urlString frame:(CGRect)frame {
self = [super init];
if (self)
{
// Create webview with requested frame size
self = [[UIWebView alloc] initWithFrame:frame];
// HTML to embed YouTube video
NSString *youTubeVideoHTML = @"<html><head>\
<body style=\"margin:0\">\
<embed id=\"yt\" src=\"%@\" type=\"application/x-shockwave-flash\" \
width=\"%0.0f\" height=\"%0.0f\"></embed>\
</body></html>";
// Populate HTML with the URL and requested frame size
NSString *html = [NSString stringWithFormat:youTubeVideoHTML, urlString, frame.size.width, frame.size.height];
// Load the html into the webview
[self loadHTMLString:html baseURL:nil];
}
return self;
}
#pragma mark -
#pragma mark Cleanup
- (void)dealloc
{
[super dealloc];
}
@end
我正在实例化它:(案例2)
- (void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex {
SongInfoTableVC *infoVC;
YouTubeView *youTubeView;
switch (buttonIndex) {
case 0:
NSLog(@"hello");
[self setLyrics];
break;
case 1:
infoVC = [[SongInfoTableVC alloc] initWithStyle:UITableViewStyleGrouped];
[infoVC setBook:data];
[infoVC setTitle:@"Song Info"];
[[self navigationController] pushViewController:infoVC animated:YES];
[infoVC release];
break;
case 2:
youTubeView = [[YouTubeView alloc]
initWithStringAsURL:@"http://www.youtube.com/watch?v=xli2E2i8GZ4"
frame:CGRectMake(0, 0, 320, 480)];
[[[self navigationController] view] addSubview:youTubeView];
break;
default:
break;
}
}
但这会打开一个空白的白色屏幕。我究竟做错了什么? 这是截图:
由于