Superwall Android SDK/com.superwall.sdk.paywall.presentation/PaywallPresentationHandler/onCustomCallback

onCustomCallback

fun onCustomCallback(handler: suspend (CustomCallback) -> CustomCallbackResult)(source)

Sets the handler that will be called when the paywall requests a custom callback.

Custom callbacks allow paywalls to request arbitrary actions from the app and receive results that determine which branch (onSuccess/onFailure) executes.

Parameters

handler

A function that receives a CustomCallback containing the callback name and optional variables, and returns a CustomCallbackResult indicating success/failure with optional data.

Example:

handler.onCustomCallback { callback ->
    when (callback.name) {
        "validate_email" -> {
            val email = callback.variables?.get("email") as? String
            if (isValidEmail(email)) {
                CustomCallbackResult.success(mapOf("validated" to true))
            } else {
                CustomCallbackResult.failure(mapOf("error" to "Invalid email"))
            }
        }
        else -> CustomCallbackResult.failure()
    }
}