How to make a phone call from your Android App?

To make a phone call from your Android app, you'll need to:

Request the necessary permission.
Use an Intent to initiate the call.

Here's how you can do it:

1. Add Permission:

Firstly, add the CALL_PHONE permission to your AndroidManifest.xml:

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

2. Implement the Call Logic:

In your activity or fragment, you can use the following code to initiate a call:

private void makePhoneCall(String phoneNumber) {
    if (phoneNumber.trim().length() > 0) {

        if (ContextCompat.checkSelfPermission(YourActivityName.this,
                Manifest.permission.CALL_PHONE) != PackageManager.PERMISSION_GRANTED) {
            ActivityCompat.requestPermissions(YourActivityName.this,
                    new String[]{Manifest.permission.CALL_PHONE}, REQUEST_CALL);
        } else {
            String dial = "tel:" + phoneNumber;
            startActivity(new Intent(Intent.ACTION_CALL, Uri.parse(dial)));
        }

    } else {
        Toast.makeText(YourActivityName.this, "Enter Phone Number", Toast.LENGTH_SHORT).show();
    }
}

Here, REQUEST_CALL is a constant (for example, private static final int REQUEST_CALL = 1;) that you can define in your activity. It's used to identify the permission request when the result is returned in the onRequestPermissionsResult method.

3. Handle Permission Result:

Override the onRequestPermissionsResult method to handle the permission result:

@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions,
                                       @NonNull int[] grantResults) {
    if (requestCode == REQUEST_CALL) {
        if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
            makePhoneCall(phoneNumber);  // Assuming phoneNumber is defined
        } else {
            Toast.makeText(this, "Permission DENIED", Toast.LENGTH_SHORT).show();
        }
    }
}

4. Using the Code:

Now, you can make a call using the makePhoneCall method:

String phoneNumber = "1234567890";
makePhoneCall(phoneNumber);

Replace 1234567890 with the actual phone number you wish to call.

Note:

Ensure you always check for the necessary permissions at runtime, especially if targeting Android 6.0 (API level 23) or higher. Calling startActivity for ACTION_CALL without the CALL_PHONE permission will result in a SecurityException. Always inform the user why you need the permission for better user experience and acceptance rate.

Adding phone call functionality to your Android app:
- To add phone call functionality, you'll need to request the CALL_PHONE permission in your AndroidManifest.xml and handle runtime permission if your app targets Android 6.0 (API level 23) or higher.
```

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

Making calls programmatically in Android app:

Use the following code snippet to make a phone call programmatically:

// Inside your activity or fragment
String phoneNumber = "tel:" + "123456789"; // Replace with the desired phone number
Intent dialIntent = new Intent(Intent.ACTION_CALL, Uri.parse(phoneNumber));
startActivity(dialIntent);

Phone call integration in Android app code sample:

Here's a complete code sample for integrating phone call functionality:

// Inside your activity or fragment
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import androidx.appcompat.app.AppCompatActivity;

public class MainActivity extends AppCompatActivity {

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

        // Example: Make a phone call when a button is clicked
        findViewById(R.id.callButton).setOnClickListener(view -> makePhoneCall());
    }

    private void makePhoneCall() {
        String phoneNumber = "tel:" + "123456789"; // Replace with the desired phone number
        Intent dialIntent = new Intent(Intent.ACTION_CALL, Uri.parse(phoneNumber));
        startActivity(dialIntent);
    }
}

Make sure to replace "123456789" with the actual phone number you want to call and handle necessary permissions and runtime checks.