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Accepted
Víctor Gonzal
Asked: 2020-03-11 13:28:59 +0800 CST 2020-03-11 13:28:59 +0800 CST

Modify the size of a NavigationBar embedded inside a UINavigationController

  • 772

I have my views(UITableViewController) and from the storyBoard I have embedded these views in a NavigationController. The thing is that I am wanting to modify the size of the NavigationBar that comes inside the UINavigationController, specifically I am wanting to modify the height.

I am handling the following code inside the ViewDidAppear to make the modification.

//TESTING NAVIGATIONBAR CUSTOM
    let bounds = UIScreen.mainScreen().bounds
    //let screenHeight = bounds.height



    let nav = self.navigationController?.navigationBar


    nav?.barStyle = UIBarStyle.Black
    nav?.tintColor = UIColor.yellowColor()
    // nav?.frame = CGRectMake(0, 0, bounds.size.width, 60)
    nav?.frame=CGRectMake(0, 0, bounds.size.width, 80)

    //END NAVIGATIONBAR CUSTOM

And the modification part works, the problem comes when I run the app and an empty strip appears between the navigationBar and the first cell of the UITableViewController.

white stripe

How can I avoid the fringe?

swift

1 Answers

  1. Best Answer

    That strip does not correspond to the UINavigationControllerbut is probably the height of headerthe UITableView. Implement the following method UITableViewDelegatelike so:

    // MARK: - UITableViewDelegate
func tableView(tableView: UITableView, heightForHeaderInSection section: Int) -> CGFloat {

    return CGFloat.min

}

    So that he headerhas a heightminimum and thus make it not be seen.

    UPDATE 1

    After resizing the UINavigationBaryou must readjust the ones insetsso UITableViewthat they fit correctly. For example like so:

    nav?.frame = CGRectMake(0, 0, bounds.size.width, 80)
tableView.contentInset = UIEdgeInsets(top: 44, left: 0, bottom: 0, right: 0)
tableView.scrollIndicatorInsets = UIEdgeInsets(top: 44, left: 0, bottom: 0, right: 0)

    With the code that you have sent, it is solved.

    • 1