I don't know how to implement outgoing call feature in android studio using Kotlin

Android Developer Forum Android Questions/Help
,
2

Implementing outgoing calls in a custom Android application involves several steps. Below is a basic outline to guide you through the process. Note that this is a simplified overview, and you may need to adjust the code based on your specific requirements.

Add Permissions: Ensure that you have the necessary permissions in your AndroidManifest.xml file:

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

Create UI for Dialing: Design a user interface (UI) for dialing a phone number. You can use EditText for the phone number input and a Button to trigger the call.

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

<Button
    android:id="@+id/buttonCall"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="Call" />

Handle Call Button Click: In your activity or fragment, handle the button click event and initiate the call:

Button buttonCall = findViewById(R.id.buttonCall);
buttonCall.setOnClickListener(new View.OnClickListener() {
    @Override
    public void onClick(View v) {
        String phoneNumber = ((EditText) findViewById(R.id.editTextPhoneNumber)).getText().toString();
        makePhoneCall(phoneNumber);
    }
});

Implement makePhoneCall Method: Create a method to initiate the phone call using an Intent . This will launch the default phone app with the specified phone number:

private void makePhoneCall(String phoneNumber) {
    Intent dialIntent = new Intent(Intent.ACTION_CALL, Uri.parse("tel:" + phoneNumber));
    startActivity(dialIntent);
}

Note: Starting from Android 23 (Marshmallow), you need to request the CALL_PHONE permission at runtime. You can check for permission before making the call and request it if necessary.

if (ContextCompat.checkSelfPermission(this, Manifest.permission.CALL_PHONE) == PackageManager.PERMISSION_GRANTED) {
    makePhoneCall(phoneNumber);
} else {
    // Request permission
    ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.CALL_PHONE}, CALL_PHONE_PERMISSION_REQUEST_CODE);
}

Handle the permission result in the onRequestPermissionsResult method.

@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
    if (requestCode == CALL_PHONE_PERMISSION_REQUEST_CODE) {
        if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
            makePhoneCall(phoneNumber);
        } else {
            Toast.makeText(this, "Call permission denied", Toast.LENGTH_SHORT).show();
        }
    }
}

Remember to replace CALL_PHONE_PERMISSION_REQUEST_CODE with a constant value defined in your code.

Please note that the CALL_PHONE permission allows your app to make calls directly without user interaction. Ensure that you comply with privacy and security guidelines when implementing such features in your application.

1 Like