How to call or dial a phone number from your own custom Android App? – Complete Source code

This video shows the steps to design an Android Application which can be used to call or dial any number. This video takes CALL_PHONE permission from user by defining the respective permission in the Manifest file. In the later part of this video it shows the difference between ACTION_CALL and ACTION_DIAL intents and the respective operations it performs for these intents.

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Source Code:

package com.example.mycallerapplication;

import androidx.appcompat.app.AppCompatActivity;
import androidx.core.app.ActivityCompat;

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

import static android.Manifest.permission.CALL_PHONE;

public class MainActivity extends AppCompatActivity {

private EditText editText;

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

editText = findViewById(R.id.editText);
ActivityCompat.requestPermissions(this, new String[]{CALL_PHONE}, PackageManager.PERMISSION_GRANTED);
}

public void CallButton(View view) {
if (checkSelfPermission(Manifest.permission.CALL_PHONE) != PackageManager.PERMISSION_GRANTED) {
// TODO: Consider calling
// Activity#requestPermissions
// here to request the missing permissions, and then overriding
// public void onRequestPermissionsResult(int requestCode, String[] permissions,
// int[] grantResults)
// to handle the case where the user grants the permission. See the documentation
// for Activity#requestPermissions for more details.
return;
}
startActivity(new Intent(Intent.ACTION_CALL, Uri.fromParts(“tel”, editText.getText().toString(), null)));
// startActivity(new Intent(Intent.ACTION_DIAL, Uri.fromParts(“tel”, editText.getText().toString(), null)));
}
}

<?xml version=”1.0″ encoding=”utf-8″?>
<manifest xmlns:android=”http://schemas.android.com/apk/res/android”
package=”com.example.mycallerapplication”>

<uses-permission android:name=”android.permission.CALL_PHONE”/>

<application
android:allowBackup=”true”
android:icon=”@mipmap/ic_launcher”
android:label=”@string/app_name”
android:roundIcon=”@mipmap/ic_launcher_round”
android:supportsRtl=”true”
android:theme=”@style/AppTheme”>
<activity android:name=”.MainActivity”>
<intent-filter>
<action android:name=”android.intent.action.MAIN” />

<category android:name=”android.intent.category.LAUNCHER” />
</intent-filter>
</activity>
</application>

</manifest>

<?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”
tools:context=”.MainActivity”>

<EditText
android:id=”@+id/editText”
android:layout_width=”wrap_content”
android:layout_height=”wrap_content”
android:layout_marginStart=”85dp”
android:layout_marginTop=”158dp”
android:ems=”10″
android:hint=”@string/type_your_number_here”
android:inputType=”number”
app:layout_constraintStart_toStartOf=”parent”
app:layout_constraintTop_toTopOf=”parent”
android:autofillHints=”” />

<Button
android:id=”@+id/button”
android:layout_width=”wrap_content”
android:layout_height=”wrap_content”
android:layout_marginStart=”154dp”
android:layout_marginTop=”77dp”
android:onClick=”CallButton”
android:text=”@string/call”
app:layout_constraintStart_toStartOf=”parent”
app:layout_constraintTop_toBottomOf=”@+id/editText” />
</androidx.constraintlayout.widget.ConstraintLayout>

<resources>
<string name=”app_name”>My CallerApplication</string>
<string name=”type_your_number_here”>Type Your Number Here …</string>
<string name=”call”>Call</string>
</resources>