Boosting Post-Call Engagement: Integrating Calldorado Caller SDK in Android & Flutter

This article details the experience of integrating Calldorado's Caller SDK 7.0 into an Android and Flutter application to enhance post-call engagement. It covers implementation steps, GDPR compliance, Firebase analytics integration, debugging techniques, and the resulting impact on user interaction.

Introduction

Modern mobile applications often overlook opportunities to connect with users immediately after a phone call. Calldorado's Caller SDK 7.0 provides a solution by enabling developers to present contextual AfterCall screens, all while adhering to stringent data privacy regulations. This approach can significantly improve user experience and engagement.

Project Context

The integration project involved incorporating the Calldorado Caller SDK 7.0 into an existing Android app. The primary goal was to display a custom AfterCall UI and gather event-driven analytics. This process served as a valuable learning experience, covering aspects such as SDK lifecycle management, GDPR compliance, and Firebase event tracking.

Integration Steps

The integration process involved several key steps:

• Initializing the SDK in the Application class:

// Application.kt
override fun onCreate() {
 super.onCreate()
 WorkManager.initialize(this, Configuration.Builder().build())
 Calldorado.startCalldorado(this)
}

• Obtaining user consent:

Calldorado.acceptConditions(getApplicationContext(), true)

• Customizing the AfterCall UI:

class MyCustomView(context: Context) : CalldoradoCustomView(context) {
 override fun getRootView(): View {
 val view = LayoutInflater.from(context).inflate(R.layout.my_native_field, null)
 return view
 }
}

Firebase & Analytics Integration

The integration with Firebase Analytics involved creating a BroadcastReceiver to capture and log relevant events:

public class FirebaseEventBroadcastReceiver extends BroadcastReceiver {
 @Override
 public void onReceive(Context context, Intent intent) {
 FirebaseAnalytics analytics = FirebaseAnalytics.getInstance(context);
 Bundle params = new Bundle();
 params.putString("eventName", intent.getStringExtra("eventName"));
 analytics.logEvent("ac_ad_shown", params);
 }
}

Debugging & Testing Tools

The following tools were utilized for debugging and testing:

• ADB command: adb shell am start -a android.intent.action.VIEW -d "<test_link>"
• Charles Proxy — inspect redirects and network calls
• Firebase DebugView — validate event flow

GDPR & Compliance

Ensuring GDPR compliance was a critical aspect of the integration. This included implementing explicit opt-in consent mechanisms, respecting user privacy through the SDK’s deleteAppData() API, and ensuring data minimization for EEA users. Data privacy is paramount when dealing with user information.

Challenges & Learnings

The primary challenge was ensuring seamless overlay permissions and event synchronization across different devices. By leveraging Charles Proxy and Firebase debugging tools, it was possible to achieve 100% validation accuracy. This highlights the importance of thorough testing and debugging in SDK integration.

Results / Impact

Post-integration, the app witnessed a significant improvement in engagement rates, with an approximately 18% increase in after-call interactions. The analytics flow remained stable, and there were no compliance-related issues. This demonstrates the potential benefits of implementing contextual AfterCall screens.

Key Takeaways

• Understand SDK lifecycle
• Implement consent-based tracking
• Debug network and event flows systematically
• Always test region-specific privacy behavior

Integrating SDKs like Calldorado requires a delicate balance between enhancing user engagement and upholding user privacy. This skill is crucial for any mobile developer working with third-party SDKs.