SearchTextField

A UITextField subclass that allows you to search a datasource and shows results as a drop down.

#Installation Download and import the source.

#Usage

Storyboard: Add a textfield to the ViewController's view in the storyboard and change it's class to SearchTextField.

override func viewDidLoad() {
    
    super.viewDidLoad()
    // Do any additional setup after loading the view, typically from a nib.
    
    textField.searchDelegate = self
    textField.setDataSource(["Paris", "London", "Madrid", "Detroit", "Dublin", "Manchester", "San Francisco", "New York", "Melbourne", "Chicago", "Madison", "Denver", "Washington", "Milan"])
    
}

Programmatic:

override func viewDidLoad() {
    
    super.viewDidLoad()
    // Do any additional setup after loading the view, typically from a nib.

    let textField = SearchTextField(frame: CGRect(x: 0, y: 0, width: 0, height: 0))
    textField.placeholder = "Enter City"
    textField.borderStyle = .roundedRect
    view.addSubview(textField)
    
    textField.searchDelegate = self
    textField.setDataSource(["Paris", "London", "Madrid", "Detroit", "Dublin", "Manchester", "San Francisco", "New York", "Melbourne", "Chicago", "Madison", "Denver", "Washington", "Milan"])
    
    let widthConstraint = NSLayoutConstraint(item: textField, attribute: .width, relatedBy: .equal,
                                             toItem: nil, attribute: .notAnAttribute, multiplier: 1.0, constant: 250)
    textField.addConstraint(widthConstraint)
    
    let heightConstraint = NSLayoutConstraint(item: textField, attribute: .height, relatedBy: .equal,
                                              toItem: nil, attribute: .notAnAttribute, multiplier: 1.0, constant: 30)
    textField.addConstraint(heightConstraint)
    
    let xConstraint = NSLayoutConstraint(item: textField, attribute: .centerX, relatedBy: .equal, toItem: view, attribute: .centerX, multiplier: 1, constant: 0)
    
    let yConstraint = NSLayoutConstraint(item: textField, attribute: .top, relatedBy: .equal, toItem: view, attribute: .top, multiplier: 1, constant: 60)

    view.addConstraint(xConstraint)
    view.addConstraint(yConstraint)
}

#Results