如何设置自定义大小以呈现Modally ViewController

Question

我有ViewController，当用户点击它的底部时，其他ViewController使用segue Present Modally弹出。 是否可以给他们自定义大小？我尝试通过Use Preferred Explicit Size选项给内容大小，但它没有帮助。我希望这个VC能够弹出并从当前的VC中拿走70％的VC。

Answer 1

使用UIContainerView代替 “现模态” SEGUE解决它。

这是我如何做，以防其他人正在努力解决同样的问题。

请勿设置任何分段/嵌入到VC B/W UIContainerView。添加STORYBOARD ID。

@IBOutlet weak var containerView: UIView! 
weak var currentViewController: UIViewController? 

override func viewDidLoad() { 

    self.currentViewController = self.storyboard?.instantiateViewController(withIdentifier: "ContainerVC") 
    self.currentViewController!.view.translatesAutoresizingMaskIntoConstraints = false 
    self.addChildViewController(self.currentViewController!) 
    self.addSubview(subView: self.currentViewController!.view, toView: self.containerView) 

    super.viewDidLoad() 

} 
//MARK:- CONTAINER VIEW 

func addSubview(subView:UIView, toView parentView:UIView) { 
    parentView.addSubview(subView) 

    var viewBindingsDict = [String: AnyObject]() 
    viewBindingsDict["subView"] = subView 
    parentView.addConstraints(NSLayoutConstraint.constraints(withVisualFormat: "H:|[subView]|", 
                      options: [], metrics: nil, views: viewBindingsDict)) 
    parentView.addConstraints(NSLayoutConstraint.constraints(withVisualFormat: "V:|[subView]|", 
                      options: [], metrics: nil, views: viewBindingsDict)) 
} 

func cycleFromViewController(oldViewController: UIViewController, toViewController newViewController: UIViewController) { 
    oldViewController.willMove(toParentViewController: nil) 
    self.addChildViewController(newViewController) 
    self.addSubview(subView: newViewController.view, toView:self.containerView!) 
    newViewController.view.alpha = 0 
    newViewController.view.layoutIfNeeded() 
    UIView.animate(withDuration: 0.5, animations: { 
     newViewController.view.alpha = 1 
     oldViewController.view.alpha = 0 
    }, 
           completion: { finished in 
           oldViewController.view.removeFromSuperview() 
           oldViewController.removeFromParentViewController() 
           newViewController.didMove(toParentViewController: self) 
    }) 
} 

然后，每当你想改变VIEW据Action

let newViewController : DestinationVC = self.storyboard?.instantiateViewController(withIdentifier: "DestinationVC") as! DestinationVC 
    newViewController.data = dataToBeSentViaSegue // Passing DATA 
    newViewController.view.translatesAutoresizingMaskIntoConstraints = false 
    self.cycleFromViewController(oldViewController: self.currentViewController!, toViewController: newViewController) 
    self.currentViewController = newViewController 

Answer 2

看看这个，让我知道你是否想要任何澄清。

__weak IBOutlet UIView *conViewers; 

- (void)callingOfCustomView:(UIViewController *)showPushedVC 
{ 

    [showPushedVC.view setTranslatesAutoresizingMaskIntoConstraints:YES]; 
    showPushedVC.view.frame = conViewers.bounds; 
    //**>> Add child view into container view 
    [conViewers addSubview: showPushedVC.view]; 
    [self addChildViewController: showPushedVC]; 
    [showPushedVC didMoveToParentViewController:self]; 
} 

UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"Main" bundle: nil]; 

    ViewersVC *objViewers = [storyboard instantiateViewControllerWithIdentifier:@"ViewersVC"]; 

    [self callingOfCustomView:objViewers]; 

将在swift中进行更新。

Answer 3

你应该在你的第二个VC（我的意思是，你正在演示），并设置背景是VC's view为clear color添加颜色的大小70％的视图，以便为剩余的30％将显示以前的VC。

例如你的VC的高度，然后100像素与70 pixel高度再添view，并设置clear background color到self.view我的意思是VC的主要观点！

现在设置modalPresentationStyle到您的VC提出它像以前一样，

yourVC.modalPresentationStyle = UIModalPresentationOverCurrentContext; 

    [self presentViewController:yourVC animated:YES completion:^{ 


    }]; 

如果你给的支持不是ios 8较小，那么你需要设置setModalPresentationStyle到NavigationController(If you are using else parent view controller - which are presenting view controller)一样，

 [self.navigationController setModalPresentationStyle:UIModalPresentationCurrentContext]; 

    [self presentViewController:yourVC animated:YES completion:^{ 


    }]; 

斯威夫特：

yourVC.modalPresentationStyle = UIModalPresentationStyle.OverCurrentContext 

    self.presentViewController(yourVC, animated: true) { 

    } 

或

self.navigationController?.modalPresentationStyle = UIModalPresentationStyle.CurrentContext 

    self.presentViewController(yourVC, animated: true) { 

    }