从标签栏控制器显示视图控制器从另一个选项卡没有切换选项卡

Question

我有四个视图控制器嵌入在选项卡栏控制器（如下所示）。我想要显示来自Feed视图的配置文件视图，而无需切换选项卡。任何建议都会很棒。

Answer 1

做的是增加一个 子视图

这里是我的代码，我在我的项目上雨燕2.0

let tabBarController = self.sourceViewController as TabBarController 
let destinationController = self.destinationViewController as UIViewController 

     for view in tabBarController.placeholderView.subviews as [UIView] { 
      view.removeFromSuperview() // 1st remove from superview 
     } 

     // Add view to placeholder view 
     tabBarController.currentViewController = destinationController 
     tabBarController.placeholderView.addSubview(destinationController.view) // 2 

     // Set autoresizing mask so it fits correctly 
     tabBarController.placeholderView.setTranslatesAutoresizingMaskIntoConstraints(false) 
     destinationController.view.setTranslatesAutoresizingMaskIntoConstraints(false) 

     let horizontalConstraint = NSLayoutConstraint.constraintsWithVisualFormat("H:|-0-[v1]-0-|", options: .AlignAllTop, metrics: nil, views: ["v1": destinationController.view]) // 3 

     tabBarController.placeholderView.addConstraints(horizontalConstraint) 

     let verticalConstraint = NSLayoutConstraint.constraintsWithVisualFormat("V:|-0-[v1]-0-|", options: .AlignAllTop, metrics: nil, views: ["v1": destinationController.view]) // 3 

     tabBarController.placeholderView.addConstraints(verticalConstraint) 

     tabBarController.placeholderView.layoutIfNeeded() // 3 
     destinationController.didMoveToParentViewController(tabBarController) // 4 

    } 

这里测试使用

的最佳方式是我在做自定义tabbar时所指的博客，希望它能帮助你： http://swiftiostutorials.com/tutorial-custom-tabbar-storyboard/