CODEWITHSUNDEEP
iosobjective-c
user1191140
user1191140

Reputation: 1579

Unwanted white bar below the screen

I have two view controllers, vc1 and vc2. From vc1 I go to vc2, inside vc2 I play a youtube video using web view. When I come back to vc1 I get a white bar below my screen. This is my code.

/* From App Delegate to go vc1 */
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
    self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
    VC1 *vc1 = [[VC1 alloc] init];
    navigationController = [[UINavigationController alloc] init];
    [navigationController setModalTransitionStyle:UIModalTransitionStyleFlipHorizontal];
    [navigationController setToolbarHidden:YES];
    [navigationController setNavigationBarHidden:YES];
    [navigationController setWantsFullScreenLayout:YES];
    [navigationController pushViewController:vc1 animated:FALSE];
    self.window.rootViewController = navigationController;
    [self.window makeKeyAndVisible];
    return YES;
}

/* From VC1 to VC2 */
-(IBAction)gotoVC2:(id)sender
{
    VC2 *vc2 = [[VC2 alloc] init];
    AppDelegate *appDelegate = (AppDelegate *)[[UIApplication sharedApplication] delegate];
    [appDelegate.navigationController vc2 animated:YES];
}

/* Setting up YouTube View */
-(void) addYouTubeLink:(UIWebView*)webView url:(NSString*)url
{
    for (UIView* shadowView in [webView.scrollView subviews])
    {
        if ([shadowView isKindOfClass:[UIImageView class]]) {
            [shadowView setHidden:YES];
        }
    }
    NSString *videoHTML = [NSString stringWithFormat:@"<html><head></head><body><iframe class=\"youtube-player\" type=\"text/html\" width=\"420\" height=\"315\" src=\"http://www.youtube.com/embed/%@\" align=\"middle\" frameborder=\"1\"></iframe></body></html>",url];
    [webView loadHTMLString:videoHTML baseURL:nil];
}
/* Going Back to VC1 */
- (IBAction)goBack:(id)sender {
    AppDelegate *appDelegate = (AppDelegate *)[[UIApplication sharedApplication] delegate];
    [appDelegate.navigationController setNavigationBarHidden:YES];
    [appDelegate.navigationController setWantsFullScreenLayout:YES];
    [appDelegate.navigationController popViewControllerAnimated:YES];
}

Please see the screenshot attached for the white bar below.

screenshot

Upvotes: 0

Views: 141

Answers (2)

Wooseong Kim
Wooseong Kim

Reputation: 1881

I don't get it why you use appDelegate.navigation controller, because you can initiate navigation controller with rootViewController, and push and pop another controller if you want.

But focusing to your situation, I think it's about frame problem. in your goback:sender method, after popViewControllerAnimated: adjust vc1's frame the way you want. To do this, I think you should retain vc1 controller in your code. like

    @property (nonatomic, strong) UIViewController *vc1;

in your header, and

    - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
    {
           VC1 *vc1 = [[VC1 alloc] init];
           self.vc1 = vc1;

I hope it helps :)

Upvotes: 0

Ash Furrow
Ash Furrow

Reputation: 12421

Try initializing your navigation controller with a root view controller.

navigationController = [[UINavigationController alloc] initWithRootViewController:vc1];

Upvotes: 1

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