Call Intent | Android Studio | Java

Call Intent:

We will use intent to open the dialer with the phone number the user entered. In this example, we will input a phone number using an input field i.e. EditText, and open that phone number in the dialer screen by clicking the button.

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Code Snippet:

Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse("tel:" + Uri.encode(phone)));
startActivity(intent);

Full Example:

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=".MainActivity1">

    <!--EditText: Input Phone Number-->
    <EditText
        android:id="@+id/phoneEt"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:hint="Enter Phone Number"
        android:inputType="phone" />

    <!--MaterialButton: Click to open call intent-->
    <com.google.android.material.button.MaterialButton
        android:id="@+id/callBtn"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:minHeight="60dp"
        android:text="Call"
        app:cornerRadius="8dp" />

</LinearLayout>

MainActivity.java

package com.technifysoft.myapplication;

import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.view.View;
import android.widget.EditText;

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

import com.google.android.material.button.MaterialButton;

public class MainActivity1 extends AppCompatActivity {

    private EditText phoneEt;
    private MaterialButton callBtn;

    @Override
    public void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        phoneEt = findViewById(R.id.phoneEt);
        callBtn = findViewById(R.id.callBtn);

        callBtn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                openCallIntent();
            }
        });
    }

    private void openCallIntent() {
        //input phone number
        String phone = phoneEt.getText().toString().trim();

        //open call/dialer intent
        Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse("tel:" + Uri.encode(phone)));
        startActivity(intent);
    }

}

Output: