Mohanad Aljhani

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// main Activity

package com.example.myapplication

import androidx.appcompat.app.AppCompatActivity
import android.os.Bundle

class MainActivity : AppCompatActivity() {
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)

        button.setOnClickListener {
            var x = editTextNumber.text.toString()
            var result = 0.0
            if (x.toDouble() > 60000) {
                var Al = AlertDialog.Builder(this)
                Al.setTitle("Warnning")
                Al.setMessage("Enter a reasonable capacity!!”)
                        Al . setPositiveButton ("?????"){ DialogInterface, which ->
                    Toast.makeText(
                        this,
                        "DONE",
                        Toast.LENGTH_SHORT
                    ).show()
                }
                        Al.setNeutralButton ("????") { DialogInterface, which ->
                    Toast.makeText(
                        this,
                        "OK",
                        Toast.LENGTH_SHORT
                    ).show()
                }
                    val alertDialog : AlertDialog = Al . create ()
                alertDialog.show()
            }
            // textView.text="Enter a reasonable capacity !!"}
            else {
                result = (x.toDouble() * 1024 )
                textView.text = result.toString()
                val t = Toast.makeText(this, "DONE", Toast.LENGTH_SHORT)
                t.show()
                //  t.setGravity(Gravity.START,200,200)
            }
        }

        button2.setOnClickListener {
            var x = editTextNumber.text.toString()
            var result = 0.0
            if (x.toDouble() > 60000)
                textView.text = "Enter a reasonable capacity!!"
            else {
                result = (x.toDouble() * 1024)
                textView.text = result.toString()
                Toast.makeText(this, "DONE", Toast.LENGTH_SHORT).show()
            }
        }

        button2.setOnClickListener {
val openURL = Intent(android.content.Intent.ACTION_VIEW) openURL.data = Uri.parse("https://www.unitconverters.net/“) startActivity(openURL)
        }

    }
}

// activity_main
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout 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"
    android:background="#CCFFFF"
    tools:context=".MainActivity">

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Hello World!"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintVertical_bias="0.075" />

    <Button
        android:id="@+id/button"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginBottom="56dp"
        android:background="#F91313"
        android:backgroundTint="#000000"
        android:text="Button"
        app:layout_constraintBottom_toBottomOf="parent"
        app:strokeColor="#701010"
        tools:layout_editor_absoluteX="158dp" />

</androidx.constraintlayout.widget.ConstraintLayout>