Display Paywall

Setup

There aren't really any setup step. As long as you already integrated and setup the Payment module of this package, you can just use the code in the Usage section to display the paywall.

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Usage

At any point of your app, use the following snippet to load the paywall:

Payment.shared.isUserSubscribed { subscribed in
    let monthlyPrice: NSDecimalNumber = Payment.shared.getPriceForProduct(productId: Payment.MONTHLY)
    let yearlyPrice: NSDecimalNumber = Payment.shared.getPriceForProduct(productId: Payment.YEARLY)
    let lifetimePrice: NSDecimalNumber = Payment.shared.getPriceForProduct(productId: Payment.LIFETIME)
    let monthlyLocalizedPrice: String = Payment.shared.getLocalizedPriceForProduct(productId: Payment.MONTHLY)
    let yearlyLocalizedPrice: String = Payment.shared.getLocalizedPriceForProduct(productId: Payment.YEARLY)
    let lifetimeLocalizedPrice: String = Payment.shared.getLocalizedPriceForProduct(productId: Payment.LIFETIME)
    
    let paywall = PaywallViewControllerFactory.init(source: "onboarding", monthlyPrice: monthlyPrice, yearlyPrice: yearlyPrice, lifetimePrice: lifetimePrice, isUserSubscribed: subscribed, monthlyLocalizedPrice: monthlyLocalizedPrice, yearlyLocalizedPrice: yearlyLocalizedPrice, lifetimeLocalizedPrice: lifetimeLocalizedPrice).build()
    paywall.modalPresentationStyle = .fullScreen
    self.present(paywall, animated: true)
}

Important notes

You should only use the above code after your AppDelegate starts the Payment service AND all products have been loaded.

The payment service dispatches a notification IAP_PRODUCTS_DID_LOAD_NOTIFICATION you can listen to in order to know when products are ready.

For instance:

if Payment.shared.products.isEmpty {
	NotificationCenter.default.addObserver(self, selector: #selector(productsReady(notification:)), name: IAP_PRODUCTS_DID_LOAD_NOTIFICATION, object: nil)
	Payment.shared.start()
} else {
	productsReady(notification: nil)
}

And then:

@objc private func productsReady(notification: Notification?) {
    Payment.shared.isUserSubscribed { subscribed in
        let monthlyPrice: NSDecimalNumber = Payment.shared.getPriceForProduct(productId: Payment.MONTHLY)
        let yearlyPrice: NSDecimalNumber = Payment.shared.getPriceForProduct(productId: Payment.YEARLY)
        let lifetimePrice: NSDecimalNumber = Payment.shared.getPriceForProduct(productId: Payment.LIFETIME)
        let monthlyLocalizedPrice: String = Payment.shared.getLocalizedPriceForProduct(productId: Payment.MONTHLY)
        let yearlyLocalizedPrice: String = Payment.shared.getLocalizedPriceForProduct(productId: Payment.YEARLY)
        let lifetimeLocalizedPrice: String = Payment.shared.getLocalizedPriceForProduct(productId: Payment.LIFETIME)
        
        DispatchQueue.main.async { [self] in
            let paywall = PaywallViewControllerFactory.init(source: "onboarding", monthlyPrice: monthlyPrice, yearlyPrice: yearlyPrice, lifetimePrice: lifetimePrice, isUserSubscribed: subscribed, monthlyLocalizedPrice: monthlyLocalizedPrice, yearlyLocalizedPrice: yearlyLocalizedPrice, lifetimeLocalizedPrice: lifetimeLocalizedPrice).build()
            paywall.modalPresentationStyle = .fullScreen
            self.present(paywall, animated: true)
        }
    }
}