reverted to use textfield delegate

Signed-off-by: Matt Bruce <matt.bruce@verizon.com>

VDSSample/Classes/Slider.swift

@@ -9,7 +9,7 @@ import Foundation
 import UIKit
 import VDS
 
-class Slider: Control {
+class Slider: Control, UITextFieldDelegate {
     var textField = NumericField().with { $0.translatesAutoresizingMaskIntoConstraints = false }
     var range = UISlider().with { $0.translatesAutoresizingMaskIntoConstraints = false }
     var maximumValue: Float = 0.0  { didSet { range.maximumValue = maximumValue }}
@@ -19,6 +19,7 @@ class Slider: Control {
         addSubview(textField)
         addSubview(range)
         textField.pinTop()
+        textField.delegate = self
         textField.pinBottom()
         textField.pinLeading()
         textField.heightAnchor.constraint(equalToConstant: 44).isActive = true
@@ -32,11 +33,6 @@ class Slider: Control {
         range.publisher(for: .valueChanged).sink { [weak self] slider in
             self?.valueChanged(newValue: slider.value)
         }.store(in: &subscribers)
-        
-        textField.numberPublisher.sink { [weak self] number in
-            guard let number else { return }
-            self?.valueChanged(newValue: number.floatValue)
-        }.store(in: &subscribers)
     }
     
     override func updateView() {
@@ -47,6 +43,15 @@ class Slider: Control {
         value = newValue
         sendActions(for: .valueChanged)
     }
+    
+    func textFieldShouldReturn(_ textField: UITextField) -> Bool {
+        textField.resignFirstResponder()
+        if let text = textField.text, let n = NumberFormatter().number(from: text) {
+            valueChanged(newValue: n.floatValue)
+        }
+        return true
+    }
+
 }
 
 extension NSNumber {