If you've customized a paywall using the Paywall Builder, you don't need to worry about rendering it in your mobile app code to display it to the user. Such a paywall contains both what should be shown within the paywall and how it should be shown.

📘
This section refers to Observer mode only. If you do not work in Observer mode, refer to the iOS - Present Paywall Builder paywalls.

Before you start presenting paywalls (Click to Expand)

Set up initial integration of Adapty with the Google Play and with the App Store.
Install and configure Adapty SDK. Make sure to set the observerMode parameter to true. Refer to our framework-specific instructions for iOS, for Android, for Flutter, for React Native, and for Unity.
Create products in the Adapty Dashboard.
Configure paywalls, assign products to them, and customize them using Paywall Builder in the Adapty Dashboard.
Create placements and assign your paywalls to them in the Adapty Dashboard.
Fetch Paywall Builder paywalls and their configuration in your mobile app code.

Present Paywall Builder paywalls in Swift

Implement the AdaptyObserverModeDelegate object:

func paywallController(_ controller: AdaptyPaywallController,
                       didInitiatePurchase product: AdaptyPaywallProduct,
                       onStartPurchase: @escaping () -> Void,
                       onFinishPurchase: @escaping () -> Void) {
       // use the product object to handle the purchase
       // use the onStartPurchase and onFinishPurchase callbacks to notify AdaptyUI about the process of the purchase
}

The observerModeDidInitiatePurchase event will inform you that the user has initiated a purchase. You can trigger your custom purchase flow in response to this callback.

Also, remember to invoke the following callbacks to notify AdaptyUI about the process of the purchase. This is necessary for proper paywall behavior, such as showing the loader, among other things:

Callback	Description
onStartPurchase()	The callback should be invoked to notify AdaptyUI that the purchase is started.
onFinishPurchase()	The callback should be invoked to notify AdaptyUI that the purchase is finished.

Initialize the visual paywall you want to display by using the .paywallController(for:products:viewConfiguration:delegate:) method:

import Adapty
import AdaptyUI

let visualPaywall = AdaptyUI.paywallController(
    for: <paywall object>,
    products: <paywall products array>,
    viewConfiguration: <LocalizedViewConfiguration>,
    delegate: <AdaptyPaywallControllerDelegate>
    observerModeDelegate: < AdaptyObserverModeDelegate>
)

Request parameters:

Parameter	Presence	Description
Paywall	required	An `AdaptyPaywall` object to obtain a controller for the desired paywall.
Products	optional	Provide an array of `AdaptyPaywallProducts` to optimize the display timing of products on the screen. If `nil` is passed, AdaptyUI will automatically fetch the necessary products.
ViewConfiguration	required	An `AdaptyUI.LocalizedViewConfiguration` object containing visual details of the paywall. Use the `AdaptyUI.getViewConfiguration(paywall:locale:)` method. Refer to Fetch Paywall Builder paywalls and their configuration topic for more details.
Delegate	required	An `AdaptyPaywallControllerDelegate` to listen to paywall events. Refer to Handling paywall events topic for more details.
ObserverModeDelegate	required	The `AdaptyObserverModeDelegate` object you've implemented in the previous step
TagResolver	optional	Define a dictionary of custom tags and their resolved values. Custom tags serve as placeholders in the paywall content, dynamically replaced with specific strings for personalized content within the paywall. Refer to Custom tags in paywall builder topic for more details.

Returns:

Object	Description
AdaptyPaywallController	An object, representing the requested paywall screen

After the object has been successfully created, you can display it like so:

present(visualPaywall, animated: true)

🚧
Don't forget to Associate paywalls to purchase transactions. Otherwise, Adapty will not determine the source paywall of the purchase.

Present Paywall Builder paywalls in SwiftUI

In order to display the visual paywall on the device screen, use the .paywall modifier in SwiftUI:

@State var paywallPresented = false

var body: some View {
	Text("Hello, AdaptyUI!")
			.paywall(
          isPresented: $paywallPresented,
          paywall: <paywall object>,
          configuration: <LocalizedViewConfiguration>,
          didPerformAction: { action in
              switch action {
                  case .close:
                      paywallPresented = false
                  default:
                      // Handle other actions
                      break
              }
          },
          didFinishRestore: { profile in /* check access level and dismiss */  },
          didFailRestore: { error in /* handle the error */ },
          didFailRendering: { error in paywallPresented = false }
          observerModeDidInitiatePurchase: { product, onStartPurchase, onFinishPurchase in
              // use the product object to handle the purchase
              // use the onStartPurchase and onFinishPurchase callbacks to notify AdaptyUI about the process of the purchase
          }, 
      )
}

Request parameters:

Parameter	Presence	Description
Paywall	required	An `AdaptyPaywall` object to obtain a controller for the desired paywall.
Product	optional	Provide an array of `AdaptyPaywallProducts` to optimize the display timing of products on the screen. If `nil` is passed, AdaptyUI will automatically fetch the necessary products.
Configuration	required	An `AdaptyUI.LocalizedViewConfiguration` object containing visual details of the paywall. Use the `AdaptyUI.getViewConfiguration(paywall:locale:)` method. Refer to Fetch Paywall Builder paywalls and their configuration topic for more details.
TagResolver	optional	Define a dictionary of custom tags and their resolved values. Custom tags serve as placeholders in the paywall content, dynamically replaced with specific strings for personalized content within the paywall. Refer to Custom tags in paywall builder topic for more details.

Closure parameters:

Closure parameter	Description
didFinishRestore	If Adapty.restorePurchases() succeeds, this callback will be invoked.
didFailRestore	If Adapty.restorePurchases() fails, this callback will be invoked.
didFailRendering	If an error occurs during the interface rendering, this callback will be invoked.
observerModeDidInitiatePurchase	This callback is invoked when a user initiates a purchase.

Refer to the iOS - Handling events topic for other closure parameters.

🚧
Don't forget to Associate paywalls to purchase transactions. Otherwise, Adapty will not determine the source paywall of the purchase.