Dialer Intent - Android Studio - Kotlin

How to launch dialer pad with a specific phone number using Intent

Learn how to easily open the phone dialer or make a direct call in your Android app using Kotlin. This step-by-step guide explains how to use Intent.ACTION_DIAL and Intent.ACTION_CALL, request runtime permissions, and write clean Kotlin code in Android Studio. Ideal for beginners and professional Android developers looking to integrate calling features into their apps.

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Video

Step 1: Create a new Project or open new project

Step 2: Code

activity_main.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"
    android:gravity="center"
    android:orientation="vertical"
    android:padding="20dp"
    tools:context=".MainActivity">

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Dialer Intent"
        android:textStyle="bold" />

    <!--Edit text to input number/code-->
    <com.google.android.material.textfield.TextInputLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginTop="10dp"
        android:hint="Enter Number/Code...">

        <EditText
            android:id="@+id/numberEt"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:inputType="phone" />

    </com.google.android.material.textfield.TextInputLayout>

    <!--Button to dial number/code-->
    <com.google.android.material.button.MaterialButton
        android:id="@+id/dialBtn"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="10dp"
        android:minWidth="120dp"
        android:text="Dial" />

</LinearLayout>

MainActivity.kt

package com.technifysoft.myapplication

import android.content.Intent
import android.net.Uri
import android.os.Bundle
import android.widget.Button
import android.widget.EditText
import android.widget.Toast
import androidx.appcompat.app.AppCompatActivity

class MainActivityKt : AppCompatActivity() {

    //Views
    private lateinit var mNumberEt: EditText
    private lateinit var mDialBtn: Button

    //String variable to store text from edit text
    private var number = ""

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

        //initialize views
        mNumberEt = findViewById(R.id.numberEt)
        mDialBtn = findViewById(R.id.dialBtn)

        //button click handle
        mDialBtn.setOnClickListener {
            //get input from edit text
            number = mNumberEt.text.toString().trim()

            if (number.isEmpty()){
                Toast.makeText(this, "Enter Number...!", Toast.LENGTH_SHORT).show()
            } else {
                //Dialer intent
                val intent = Intent(Intent.ACTION_DIAL, Uri.parse("tel:" + Uri.encode(number)))
                startActivity(intent)
            }
        }
    }

}

Step 3: Screenshots