[ios] Set the maximum character length of a UITextField in Swift

Here's a Swift 3.2+ alternative that avoids unnecessary string manipulation. In this case, the maximum length is 10:

func textField(_ textField: UITextField, shouldChangeCharactersIn range: NSRange, replacementString string: String) -> Bool {
    let text = textField.text ?? ""

    return text.count - range.length + string.count <= 10
}

Examples related to ios

Adding a UISegmentedControl to UITableView Crop image to specified size and picture location Undefined Symbols error when integrating Apptentive iOS SDK via Cocoapods Keep placeholder text in UITextField on input in IOS Accessing AppDelegate from framework? Autoresize View When SubViews are Added Warp \ bend effect on a UIView? Speech input for visually impaired users without the need to tap the screen make UITableViewCell selectable only while editing Xcode 12, building for iOS Simulator, but linking in object file built for iOS, for architecture arm64

Examples related to string

How to split a string in two and store it in a field String method cannot be found in a main class method Kotlin - How to correctly concatenate a String Replacing a character from a certain index Remove quotes from String in Python Detect whether a Python string is a number or a letter How does String substring work in Swift How does String.Index work in Swift swift 3.0 Data to String? How to parse JSON string in Typescript

Examples related to swift

Make a VStack fill the width of the screen in SwiftUI Xcode 10.2.1 Command PhaseScriptExecution failed with a nonzero exit code Command CompileSwift failed with a nonzero exit code in Xcode 10 Convert Json string to Json object in Swift 4 iOS Swift - Get the Current Local Time and Date Timestamp Xcode 9 Swift Language Version (SWIFT_VERSION) How do I use Safe Area Layout programmatically? How can I use String substring in Swift 4? 'substring(to:)' is deprecated: Please use String slicing subscript with a 'partial range from' operator Safe Area of Xcode 9 The use of Swift 3 @objc inference in Swift 4 mode is deprecated?

Examples related to uitextfield

Keep placeholder text in UITextField on input in IOS Set the maximum character length of a UITextField in Swift How to restrict UITextField to take only numbers in Swift? Disabling user input for UITextfield in swift How do I check when a UITextField changes? Swift add icon/image in UITextField Move textfield when keyboard appears swift Create space at the beginning of a UITextField Max length UITextField How to hide keyboard in swift on pressing return key?

Examples related to character

Set the maximum character length of a UITextField in Swift Max length UITextField Remove last character from string. Swift language Get nth character of a string in Swift programming language How many characters can you store with 1 byte? How to convert integers to characters in C? Converting characters to integers in Java How to check the first character in a string in Bash or UNIX shell? Invisible characters - ASCII How to delete Certain Characters in a excel 2010 cell