Hide tab bar in IOS swift app

问题

I'm trying to figure out how to hide the tab bar in my iOS swift app. I don't care about any fancy animations or anything. Just something I can put in the ViewDidLoad() function.

回答1:

You can simply use this in your ViewDidLoad() method.

self.tabBarController?.tabBar.hidden = true

For Swift 3.0, 4.0, 5.0:

self.tabBarController?.tabBar.isHidden = true

Or you can change z position of tab bar this way:

self.tabBarController?.tabBar.layer.zPosition = -1

and if you want to show it again then:

self.tabBarController?.tabBar.layer.zPosition = 0

回答2:

The accepted answer works, but the transition to other view has a choppy animation (The tab Bar animation)

Also wanted to add although Kalpesh's solution worked perfectly for me, I found out that every view controller has an attribute for hidesBottomBarWhenPushed (check out storyboard.) If you wish to hide tab bar, you should put a tick on that. And it would work great.

Update: Im not sure if this is a known thing, but here's what apple documentation page says:

A view controller added as a child of a navigation controller can display an optional toolbar at the bottom of the screen. The value of this property on the topmost view controller determines whether the toolbar is visible. If the value of this property is true, the toolbar is hidden. If the value of this property is false, the bar is visible.

I think this means that you have to set the basic value of hidesBottomBarWhenPushed at the topmost view controller (the first one on the navigation stack.) Once you have set that to true, you can change to false or true for the other viewcontrollers on the stack. But, if your topmost view controller's hidesBottomBarWhenPushed value is false, it will not show a tab bar for other controllers on the navigation stack.

回答3:

Before push set controller.hidesBottomBarWhenPushed = true

let objCreateEventVC = CreateEventVC()
objCreateEventVC.hidesBottomBarWhenPushed = true
self.navigationController?.pushViewController(objCreateEventVC, animated: false)

回答4:

No need to set tabBar's isHidden property.

Simply, Go to ViewController (in StoryBoard) -> Attribute inspector -> Under 'View Controller' section select 'Hide Bottom Bar on Push' checkbox. This works like a charm.

If you go the 'isHidden' way you need to do a lot of handling, i.e. to make it appear again when you go back and also to remove the bottom empty space after hiding tabBar.

回答5:

Swift 3.

self.tabBarController?.tabBar.isHidden = true

回答6:

You can also set it in extension (use Dharmesh Kheni answer)

extension UITabBar {
func tabsVisiblty(_ isVisiblty: Bool = true){
    if isVisiblty {
        self.isHidden = false
        self.layer.zPosition = 0
    } else {
        self.isHidden = true
        self.layer.zPosition = -1
    }
}

回答7:

To hide the navigationBar and the tabBar I use the next function:

var tabBarHeight : CGFloat!

func fullScreenAction(){
    if navigationController?.isNavigationBarHidden ?? false {
        //Show navigationBar
        navigationController?.setNavigationBarHidden(false, animated: false)

        //Show tabBar
        tabBarController?.tabBar.isHidden = false
        //Update the height of tabBar
        if (!(tabBarController?.tabBar.frame.size.height.isEqual(to: 0))!) {
            tabBarHeight = self.tabBarController?.tabBar.frame.size.height
        }
        tabBarController?.tabBar.frame.size.height   = tabBarHeight
    } else {
        //Hide navigationBar
        navigationController?.setNavigationBarHidden(true, animated: false)

        //Hide tabBar
        tabBarController?.tabBar.isHidden = true
        //Update the height of tabBar
        tabBarHeight = tabBarController?.tabBar.frame.size.height
        tabBarController?.tabBar.frame.size.height   = 0

    }

}

When the screen orientation has changed the height of tabBar change too, so I use the next function to exit of fullscreen to resize the height:

override func viewWillTransition(to size: CGSize, with coordinator: UIViewControllerTransitionCoordinator) {
    super.viewWillTransition(to: size, with: coordinator)
    if navigationController?.isNavigationBarHidden ?? false {
        navigationController?.setNavigationBarHidden(false, animated: false)
        tabBarController?.tabBar.isHidden = false
    }
}

I hope it is useful for you.

回答8:

This is the way programmatically for Swift 4.0, 4.1, 4.2, 5.0 and later >:

tabBarController?.hidesBottomBarWhenPushed = true

hidesBottomBarWhenPushed = true

来源：https://stackoverflow.com/questions/28777943/hide-tab-bar-in-ios-swift-app

标签

ios

swift