 	var enableInputClicksWhenVisible:Bool {
 		return true
 	}
-	
+
 	// MARK: Attach to a text input.	
 	func attachTo(#textInput:UITextInput) {
 		textField = nil

class YZNumberKeyboardInputAccessoryView : YZKeyboardInputAccessoryView {
	init() {
		let begin = 1, end = 10
		var keys:[String] = Array()
		for i in begin...end {
			keys.append("\(i%10)")

	}
	
	func configureHeightConstraint() {
		
		if let viewConstraints = constraints() as? [NSLayoutConstraint] {
			if let constraint = viewConstraints.first {
				constraint.constant = YZKeyboardInputAccessoryView.heightWith(keyboardConstants: keyboardConstants, extraHeight: dismissTouchAreaHeight)
			}
		}
	}
