Question

我正在制作一款加载YouTube视频的iPad应用。我能够获得一个UIWebView来加载youtube视频，其中包含一些在线找到的iframe代码。我需要能够旋转iPad，而不是在旋转到横向时裁剪视频，但同时横向和纵向宽度都是设备的全宽。我在iframe中放了什么？我试过用

"meta name="viewport" content="width=device-width; initial-scale=1.0; maximum-scale=1.0; user-scalable=no"

但它不起作用。我试图将它放在iframe脚本中（不在内部。但这不可能。对于任何想法？非常感谢任何帮助。以下是我的代码：

的.m

#import "ViewController.h"
#import <AVFoundation/AVFoundation.h>

@interface ViewController ()

@end

@implementation ViewController

@synthesize webView;

-(void)viewDidLoad
{

   [super viewDidLoad];
   [self embedYouTube];

   NSLog(@"frame:%@", NSStringFromCGRect(self.view.frame)); // prints frame:{{0, 0}, {768, 1004}}
   NSLog(@"bounds:%@", NSStringFromCGRect([[self view] bounds])); // prints frame:{{0, 0}, {768, 1004}}

}

-(void)embedYouTube{

    AVAudioSession *audioSession = [AVAudioSession sharedInstance];
    BOOL ok;
    NSError *setCategoryError = nil;
    ok = [audioSession setCategory:AVAudioSessionCategoryPlayback
                         error:&setCategoryError];
    if (!ok) {
        NSLog(@"%s setCategoryError=%@", __PRETTY_FUNCTION__, setCategoryError);
}


     NSString *embedHTML = @"<iframe height=\"700\" width=\"900\" src=\"http://www.youtube.com/embed/QK8mJJJvaes\" frameborder=\"0\" allowfullscreen></iframe>";


     NSString *html = [NSString stringWithFormat:embedHTML];

    [webView loadHTMLString:html baseURL:nil];
    [self.view addSubview:webView];

}

- (void)didReceiveMemoryWarning
{
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

@end

在我的AppDelegate.m文件中，我有：

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
// we support rotation in this view controller
return YES;
}

的.xib

视图和webView都选中了Autoresize子视图，视图方向为纵向，视图大小为none，模式中心和webView缩放以适合页面。

Answer 1

我最终确定了为Xcode提供宽高比计算器的确切尺寸。

-(void)embedYouTube{

    AVAudioSession *audioSession = [AVAudioSession sharedInstance];
    BOOL ok;
    NSError *setCategoryError = nil;
    ok = [audioSession setCategory:AVAudioSessionCategoryPlayback
                     error:&setCategoryError];
    if (!ok) {
    NSLog(@"%s setCategoryError=%@", __PRETTY_FUNCTION__, setCategoryError);
    }

    NSString *embedHTML = @"<iframe height=\"548\" width=\"975\" src=\"http://www.youtube.com/embed/QK8mJJJvaes\" frameborder=\"0\" allowfullscreen></iframe>";

    NSString *html = [NSString stringWithFormat:embedHTML];

   [webView loadHTMLString:html baseURL:nil];
   [self.view addSubview:webView];

}

iframe中的youtube通过uiwebview指定在旋转到横向时不会切断的尺寸

1 个答案: