zeljkobilbija

class CustomView: UIView {
  //initWithFrame to init view from code
  override init(frame: CGRect) {
    super.init(frame: frame)
    setupView()
  }
  
  //initWithCode to init view from xib or storyboard
  required init?(coder aDecoder: NSCoder) {
    super.init(coder: aDecoder)

zeljkobilbija

<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:state_focused="true" android:state_pressed="false" android:drawable="@drawable/YOURIMAGE" />
    <item android:state_focused="true" android:state_pressed="true" android:drawable="@drawable/gradient" />
    <item android:state_focused="false" android:state_pressed="true" android:drawable="@drawable/gradient" />
    <item android:drawable="@drawable/YOURIMAGE" />
</selector>

zeljkobilbija

package com.interfacemockup.ttt;

import androidx.annotation.NonNull;
import androidx.appcompat.app.AppCompatActivity;

import android.graphics.Color;
import android.graphics.PorterDuff;
import android.graphics.drawable.Drawable;
import android.os.Bundle;
import android.view.Menu;