Fixed issue-1123, TextField is not scrolling

Sources/iOS/TextField.swift

@@ -66,7 +66,7 @@ public protocol TextFieldDelegate: UITextFieldDelegate {
 open class TextField: UITextField {
   /// Default size when using AutoLayout.
   open override var intrinsicContentSize: CGSize {
-    return CGSize(width: bounds.width, height: 32)
+    return CGSize(width: bounds.width, height: max(32, super.intrinsicContentSize.height))
   }
   
   /// A Boolean that indicates if the placeholder label is animated.