Answers for "material-ui textfield with digits only"

number min in material ui textfield

<Field
    name="maxNodeSelectedCount"
    component={TextField}
    label="Max Node Selected Count"
    type="number"
    InputProps={{ inputProps: { min: 0, max: 10 } }}
    format={formatOption}
    normalize={normalizeOption}
    {...propertyFieldDefaults}
  />

uitextfield numbers only

//class ViewController: UIViewController, UITextInputTraits {

@IBOutlet weak var textFieldKeyboardType: UITextField!{
    didSet{
        textFieldKeyboardType.keyboardType = UIKeyboardType.NumberPad
    }
}
var keyboardType: UIKeyboardType { 
    get{ 
        return textFieldKeyboardType.keyboardType
    } 
    set{ 
        if newValue != UIKeyboardType.NumberPad{
            self.keyboardType = UIKeyboardType.NumberPad
        }
    } 
}