CODEWITHSUNDEEP
iosobjective-cswifttabbar
Stephany
Stephany

Reputation: 1014

Check if tabBar is nil

I'm trying to see if my TabBar is nil.

In Objective-C I would do so:

if(self.tabBar != nil){
}

if I try to do this to me in swift returns this error:

'UITabBar' is not a subtype of 'NSString'

This is the code that I have to write in whole swift:

override func viewDidLayoutSubviews() {
    //check tabBar not null
    if (self.tabBar != nil)
    {
        //make changes in frame here according to orientation if any
        self.tabBar.frame = CGRect(x: 00, y: 20, width:self.view.bounds.size.width, height: 49)
    }
}

Upvotes: 0

Views: 1154

Answers (2)

Matteo Piombo
Matteo Piombo

Reputation: 6726

The viewController's tabBarController is an optional. The tabBar inside a UITabBarController is not an optional. Thus you might try:

override func viewDidLayoutSubviews() {
        if let tabBarController = self.tabBarController {
            // use your tabBarController
            tabBarController.tabBar // the tabBar in the tabBarController is not an optional
        }
    }

Upvotes: 2

Saif
Saif

Reputation: 2968

Try,

let tabBar: UITabBar?
tabBar =  //initialize tabBar
if tabBar != nil {

}

Hope this helps

Upvotes: 0

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