SuperwallDelegate
An abstract class that receives global SDK events for analytics and lifecycle management.
Use this delegate for global events across your entire app. For events specific to individual registerPlacement() calls, use PaywallPresentationHandler instead.
Purpose
Receives global SDK events including paywall lifecycle, subscription changes, and custom actions.
Signature
abstract class SuperwallDelegate {
void subscriptionStatusDidChange(SubscriptionStatus newValue);
void handleSuperwallEvent(SuperwallEventInfo eventInfo);
void handleCustomPaywallAction(String name);
void willDismissPaywall(PaywallInfo paywallInfo);
void willPresentPaywall(PaywallInfo paywallInfo);
void didDismissPaywall(PaywallInfo paywallInfo);
void didPresentPaywall(PaywallInfo paywallInfo);
void paywallWillOpenURL(Uri url);
void paywallWillOpenDeepLink(Uri url);
}Implementation
Extend the abstract class and implement the methods you need:
class MySuperwallDelegate extends SuperwallDelegate {
@override
void subscriptionStatusDidChange(SubscriptionStatus newValue) {
print('Subscription status changed to: $newValue');
// Update user interface, send analytics, etc.
}
@override
void handleSuperwallEvent(SuperwallEventInfo eventInfo) {
print('Superwall event: ${eventInfo.event}');
// Send to your analytics platform
Analytics.track(eventInfo.event.rawName, eventInfo.params);
}
@override
void willPresentPaywall(PaywallInfo paywallInfo) {
print('About to present paywall: ${paywallInfo.identifier}');
// Pause video, hide overlays, etc.
}
@override
void didDismissPaywall(PaywallInfo paywallInfo) {
print('Paywall dismissed: ${paywallInfo.identifier}');
// Resume video, show overlays, etc.
}
@override
void handleCustomPaywallAction(String name) {
print('Custom action triggered: $name');
switch (name) {
case 'contact_support':
_openSupportChat();
break;
case 'share_app':
_shareApp();
break;
}
}
}Usage
Set up the delegate:
void main() async {
WidgetsFlutterBinding.ensureInitialized();
await Superwall.configure('pk_your_api_key');
// Set the delegate
Superwall.shared.setDelegate(MySuperwallDelegate());
runApp(MyApp());
}Minimal delegate implementation:
class MinimalDelegate extends SuperwallDelegate {
@override
void subscriptionStatusDidChange(SubscriptionStatus newValue) {
// Required: Handle subscription status changes
}
@override
void handleSuperwallEvent(SuperwallEventInfo eventInfo) {
// Required: Handle SDK events
}
// All other methods have default implementations
}How is this guide?