Changing Search Bar placeholder text font in Swift

Question

I am trying to change the font of the placeholder text in the search bar within my Search Display Controller. I was looking at some examples and I tried to implement them but as they are in Objective-C, I wasn't able to find any that I could get to work.

For example, I tried this one:

UITextField *textField = [[searchBar subviews] objectAtIndex:1]; 
[textField setFont:[UIFont fontWithName:@"Helvetica" size:40]];

But I was unable to get past var textField: UITextField = UISearchBar

Any ideas?

Solution 1

 //SearchBar Text
    let textFieldInsideUISearchBar = dashBoardSearchBar.valueForKey("searchField") as? UITextField
textFieldInsideUISearchBar?.textColor = UIColor.whiteColor()

//SearchBar Placeholder    
     let textFieldInsideUISearchBarLabel = textFieldInsideUISearchBar!.valueForKey("placeholderLabel") as? UILabel
textFieldInsideUISearchBarLabel?.textColor = UIColor.whiteColor()

Solution 2

Set placeholder text font size:

UILabel.appearance(whenContainedInInstancesOf: [UISearchBar.self]).font = UIFont.systemFont(ofSize: 12)

set search text font size:

UITextField.appearance(whenContainedInInstancesOf: [UISearchBar.self]).font = UIFont.systemFont(ofSize: 12)

Solution 3

This is the easiest practise for changing the Font or any other similar changes in the textfield of searchBar. I have been using XCode 8.4, Swift 3.x, iOS 10.x.

extension UISearchBar {

func change(textFont : UIFont?) {

    for view : UIView in (self.subviews[0]).subviews {

        if let textField = view as? UITextField {
            textField.font = textFont
        }
    }
} }

The above code can be called directly where you make an IBOutlet of the searchBar...

@IBOutlet weak var searchBar: UISearchBar! {
    didSet {
        searchBar.change(textFont: GlobalConstants.Font.avenirBook14)
    }
}

Solution 4

searchBar.searchTextField.font = UIFont(name: "Helvetica", size: 40)

Solution 5

There is even an easier way in Swift 5:

searchBar[keyPath: \.searchTextField].font = UIFont(...)

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