import android.content.Intent
import androidx.appcompat.app.AppCompatActivity
import android.os.Bundle
import android.os.Handler
import android.widget.Toast

class SplashActivity : AppCompatActivity() {
    private lateinit var runnable:Runnable
    private val handler = Handler()
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_splash)

        runnable = Runnable {
            val intent = Intent(this,SignUpActivity::class.java)
            startActivity(intent)
            finish()
        }

        handler.postDelayed(runnable,3000)
    }

    override fun onDestroy() {
        handler.removeCallbacks(runnable)
        super.onDestroy()

        //Toast.makeText(this,"onDestroy called",Toast.LENGTH_SHORT).show()
    }
}

//XML

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".SplashActivity"
    android:gravity="center">

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="@string/tx_splash"
        android:textSize="30dp"
        android:textColor="@color/red"/>
</LinearLayout>