ios - 在不显示选项卡栏的情况下执行到另一个导航 Controller 的转场

Question

我有一个根 Tab Host Controller 和两个 Navigation Controller 选项卡兄弟:(1) Nearby Stops 和 (2) Saved Stops。其中每一个都有一个 View Controller。

我想执行一个从兄弟 View Controllers 到另一个嵌入了 Stop Schedule View Controller 的 Navigation Controller 的 segue，具有以下要求:

1. 根 Tab Bar 不应显示在此 View Controller 的底部
2. 在执行 segue 之前，我需要将一个 Stop 对象传递给这个 View Controller

Storyboard:

目前，我正在以这种方式执行 segue，尽管 Tab Bar 在不应该保留在 Stop Schedule View Controller 上。

func showStopSchedule(stop: Stop) {
    let stopScheduleController = self.storyboard?.instantiateViewControllerWithIdentifier("StopScheduleViewController") as! StopScheduleViewController

    stopScheduleController.stop = stop    // pass data object

    self.navigationController?.pushViewController(stopScheduleController, animated: true)
}

Answer 1

您可以在显示停止计划 View Controller 时简单地设置选项卡栏的隐藏属性，并在该 View Controller 消失之前取消隐藏选项卡栏

override func viewWillAppear(animated: Bool) {
    super.viewWillAppear(animated)
    self.tabBarController?.tabBar.hidden=true
}

override func viewWillDisappear(animated: Bool) {
    super.viewWillDisappear(animated)
    self.tabBarController?.tabBar.hidden=false
}

更新:要使过渡动画化，您可以使用它:

class StopViewController: UIViewController {

    var barFrame:CGRect?

    override func viewDidLoad() {
        super.viewDidLoad()

        // Do any additional setup after loading the view.
    }

    override func viewWillAppear(animated: Bool) {

        super.viewWillAppear(animated)
        // self.tabBarController?.tabBar.hidden=true
        if  let tabBar=self.tabBarController?.tabBar {
           self.barFrame=tabBar.frame

           UIView.animateWithDuration(0.3, animations: { () -> Void in
               let newBarFrame=CGRectMake(self.barFrame!.origin.x, self.view.frame.size.height, self.barFrame!.size.width, self.barFrame!.size.height)
               tabBar.frame=newBarFrame
            }, completion: { (Bool) -> Void in
                tabBar.hidden=true
            })

        }
    }

    override func viewWillDisappear(animated: Bool) {
        super.viewWillDisappear(animated)
        self.tabBarController?.tabBar.hidden=false;
        if self.barFrame != nil {
            UIView.animateWithDuration(0.3, animations: { () -> Void in
                let newBarFrame=CGRectMake(self.barFrame!.origin.x, self.view.frame.size.height-self.barFrame!.size.height, self.view.frame.size.width, self.barFrame!.size.height)
                self.tabBarController?.tabBar.frame=newBarFrame
            })

        }
    }
}