Android Detect Phone Call BroadcastReceiver example

 Detect Phone Call BroadcastReceiver

 Create A Class PhoneCallReceiver class and extends BroadcastReceiver

package com.example.phonecallbroadcastreceiver;

import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.telephony.TelephonyManager;
import android.util.Log;
import android.widget.Toast;

public class PhoneCallReceiver extends BroadcastReceiver {
    @Override
    public void onReceive(Context context, Intent intent) {
        String action = intent.getAction();
        if (action.equals(TelephonyManager.ACTION_PHONE_STATE_CHANGED)) {
            String phoneCallStatus = intent.getStringExtra(TelephonyManager.EXTRA_STATE);

            if (TelephonyManager.EXTRA_STATE_RINGING.equals(phoneCallStatus)) {
                String incomingNumber = intent.getStringExtra(TelephonyManager.EXTRA_INCOMING_NUMBER);
                if (incomingNumber != null) {
                    Log.d("PhoneCallReceiver", "Incoming call from : " + incomingNumber);
                    Toast.makeText(context, "Incoming call from : " + incomingNumber, Toast.LENGTH_SHORT).show();
                } else {
                    Log.d("PhoneCallReceiver", "Incoming call from : " + "unknown");
                    Toast.makeText(context, "Incoming call from : " + "unknown", Toast.LENGTH_SHORT).show();
                }
            }
        }
    }
}

 

 Take Permission From the user. If permission is not given you can not detect the phone call

package com.example.phonecallbroadcastreceiver;

import androidx.appcompat.app.AppCompatActivity;
import androidx.core.app.ActivityCompat;
import androidx.core.content.ContextCompat;
import android.Manifest;
import android.content.pm.PackageManager;
import android.os.Bundle;

public class MainActivity extends AppCompatActivity {
    private static final int PERMISSION_REQUEST_CODE = 1;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        if (ContextCompat.checkSelfPermission(this, Manifest.permission.READ_PHONE_STATE) != PackageManager.PERMISSION_GRANTED ||
                ContextCompat.checkSelfPermission(this, Manifest.permission.READ_CALL_LOG) != PackageManager.PERMISSION_GRANTED )
        {
                ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.READ_PHONE_STATE, Manifest.permission.READ_CALL_LOG}, PERMISSION_REQUEST_CODE);
        }
    }
    
}

 

Then Change AndroidManifest.xml (Give Permissions and Add receiver in the application )

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools">

    <uses-permission android:name="android.permission.READ_PHONE_STATE" />
    <uses-permission android:name="android.permission.READ_CALL_LOG" />

    <application
        android:allowBackup="true"
        android:dataExtractionRules="@xml/data_extraction_rules"
        android:fullBackupContent="@xml/backup_rules"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/Theme.PhoneCallBroadcastReceiver"
        tools:targetApi="31">
        <activity
            android:name=".MainActivity"
            android:exported="true">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <receiver android:name=".PhoneCallReceiver"
            android:exported="true">
            <intent-filter>
                <action android:name="android.intent.action.PHONE_STATE" />
            </intent-filter>
        </receiver>
    </application>

</manifest>

 

Now run the application and when an incoming call is on your device the Toast will show the incoming call number.