KanshuYokoo

    convenience init() {
        self.init(nibName:nil, bundle:nil)
    }
    
    // This extends the superclass.
    override init(nibName nibNameOrNil: String?, bundle nibBundleOrNil: Bundle?) {
        super.init(nibName: nibNameOrNil, bundle: nibBundleOrNil)
    }
    
    // This is also necessary when extending the superclass.

KanshuYokoo

    @IBAction func datePickerAction(_ sender: UITextField) {
        let datePickerView:UIDatePicker = UIDatePicker()
        datePickerView.datePickerMode = UIDatePickerMode.date
        sender.inputView = datePickerView
        datePickerView.addTarget(self, action: #selector(ViewController.datePickerValueChanged), for: UIControlEvents.valueChanged)
        
    }
    
    
  @objc func datePickerValueChanged(sender:UIDatePicker) {

KanshuYokoo

        UIControl().sendAction(#selector(NSXPCConnection.suspend),
                               to: UIApplication.shared, for: nil)

KanshuYokoo

DispatchQueue.main.async(execute: {
  // call any function ex. doSomething()
   self.doSomething() 
 })

KanshuYokoo

IBOutlet weak var field1: UITextField!

if(field1.text?.isEmpty ?? true) {
// field is empty
  return true
} else {
// field is NOT empty
  return false
}

KanshuYokoo

  Style: PropTypes.oneOfType(
    [
      PropTypes.number,
      PropTypes.object,
      PropTypes.array
    ]
  )

KanshuYokoo

import { Dimensions, Platform } from 'react-native';

export function isIphoneX() {
  const dimWindow = Dimensions.get('window')
  return (
    Platform.OS === 'ios' &&
      (isIPhoneXSize(dimWindow) || isIPhoneXRMAXSize(dimWindow))
  )
}
export function isIPhoneXSize(window) {

KanshuYokoo

const { width, height } = Dimensions.get('window')
const sizeStyle = {
      width: width,
      height: height 
    }
    
const styleImage = {
      flex: 1,
      justifyContent: 'center',
      alignItems: 'center'

KanshuYokoo

import UIKit

@IBDesignable class CustomBorderView: UIView {

    @IBInspectable var cornerRadius: CGFloat = 0{
        didSet{
            self.layer.cornerRadius = cornerRadius
        }
    }
    

KanshuYokoo

import UIKit

@IBDesignable class ButtonRadius: UIButton {

    @IBInspectable var cornerRadius: CGFloat = 0.0 {
        didSet{
            self.layer.cornerRadius = cornerRadius
        }
    }