presentViewController显示黑页

Question

- (IBAction)submitButtonClicked:(id)sender{
    NSLog(@"here");
    SuccessOrFailViewController *sfvc = [[SuccessOrFailViewController alloc] init];
    [self presentViewController:sfvc animated:NO completion:NULL];
}

我想在用户点击应用中的提交按钮时打开新页面.但是,这会打开完全黑屏,上面没有任何内容.如何让它打开viewController呢？

Answer 1

您没有输入用户界面的nib名称:

SuccessOrFailViewController *sfvc = [[SuccessOrFailViewController alloc] initWithNibName:@"SuccessOrFailViewController" bundle:nil];
[self presentViewController:sfvc animated:NO completion:NULL];

对于故事板,这是要走的路:

UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"MainStoryboard" bundle:nil];
SuccessOrFailViewController *sfvc = [storyboard instantiateViewControllerWithIdentifier:@"SuccessOrFailViewController"];
[sfvc setModalPresentationStyle:UIModalPresentationFullScreen];
[self presentModalViewController:sfvc animated:YES];

Answer 2

迅速

var next = self.storyboard?.instantiateViewControllerWithIdentifier("DashboardController") as! DashboardController
self.presentViewController(next, animated: true, completion: nil)

不要忘记StoryBoard Id在StoryBoard- >中设置ViewControlleridentity inspector

Answer 3

如果其他人发现这一点,请确保您没有self.view.backgroundColor = UIColor.clearColor()在视图中设置显示...这为我解决了.