Main Activity.Kt
package com.example.diceroll
import androidx.appcompat.app.AppCompatActivity
import android.os.Bundle
import android.widget.Button
import android.widget.TextView
import android.widget.Toast
class MainActivity : AppCompatActivity() {
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_main)
/** eikhane button ke call kora hoece ... jate kore button er value ke ami niyontron korte pari **/
val rollButton: Button = findViewById(R.id.roll_button)
/** eikhane listener bosano hoece ... jar karone Button e click dewar por Button Clicked Likha uthbe**/
rollButton.setOnClickListener {
/** eikhane ekta method creat koreci text chang ekorar jonnno**/
rollDice()
}
}
/** ei method tar moddhei ami XML file e thaka result_text ke niyontron kore change koreci**/
private fun rollDice() {
val resultText: TextView = findViewById(R.id.result_text)
resultText.text = "Dice Rolled!"
}
}
XML File:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="wrap_content"
tools:context=".MainActivity"
android:layout_gravity="center_vertical"
android:orientation="vertical"
>
<TextView
android:id="@+id/result_text"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="30sp"
android:text="1"
android:layout_gravity="center_horizontal"
/>
<Button
android:id="@+id/roll_button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:text="@string/roll" />
</LinearLayout>
Ouput Here:
Show Random Text:
Main Activity.Kt
package com.example.diceroll
import androidx.appcompat.app.AppCompatActivity
import android.os.Bundle
import android.widget.Button
import android.widget.TextView
import android.widget.Toast
import java.util.*
import kotlin.random.Random.Default.nextInt
class MainActivity : AppCompatActivity() {
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_main)
/** eikhane button ke call kora hoece ... jate kore button er value ke ami niyontron korte pari **/
val rollButton: Button = findViewById(R.id.roll_button)
/** eikhane listener bosano hoece ... jar karone Button e click dewar por Button Clicked Likha uthbe**/
rollButton.setOnClickListener {
/** eikhane ekta method creat koreci text chang ekorar jonnno**/
rollDice()
}
}
/** ei method tar moddhei ami XML file e thaka result_text ke niyontron kore change koreci**/
private fun rollDice() {
val resultText: TextView = findViewById(R.id.result_text)
val randomInt = Random().nextInt(100) +1 //eitar maddhome random number dewa hoece . 100 ervitore je kono number represent hote pare
resultText.text = randomInt.toString() // toString er maddhome amra ... INT , boolean je kono type ke string e nie ashte parbo
}
}
XML File:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="wrap_content"
tools:context=".MainActivity"
android:layout_gravity="center_vertical"
android:orientation="vertical"
>
<TextView
android:id="@+id/result_text"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="30sp"
android:text="1"
android:layout_gravity="center_horizontal"
/>
<Button
android:id="@+id/roll_button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:text="@string/roll" />
</LinearLayout>
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