Previewing

To preview a paywall on device, click Preview in the top-right side of the editor:

To enable this functionality, you’ll need to use deep links.

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Adding a Custom URL Scheme (iOS)

To handle deep links on iOS, you’ll need to add a custom URL scheme for your app.

Open Xcode. In your info.plist, add a row called URL Types. Expand the automatically created Item 0, and inside the URL identifier value field, type your Bundle ID, e.g., com.superwall.Superwall-SwiftUI. Add another row to Item 0 called URL Schemes and set its Item 0 to a URL scheme you’d like to use for your app, e.g., exampleapp. Your structure should look like this:

With this example, the app will open in response to a deep link with the format exampleapp://. You can view Apple’s documentation to learn more about custom URL schemes.

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Adding a Custom Intent Filter (Android)

For Android, add the following to your AndroidManifest.xml file:

<activity android:name=".MainActivity">
    <intent-filter>
        <action android:name="android.intent.action.VIEW" />
        <category android:name="android.intent.category.DEFAULT" />
        <category android:name="android.intent.category.BROWSABLE" />
        <data android:scheme="exampleapp" />
    </intent-filter>
</activity>

This configuration allows your app to open in response to a deep link with the format exampleapp:// from your MainActivity class.

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Handling Deep Links (iOS)

Depending on whether your app uses a SceneDelegate, AppDelegate, or is written in SwiftUI, there are different ways to tell Superwall that a deep link has been opened.

Be sure to click the tab that corresponds to your architecture:

import SuperwallKit

class AppDelegate: UIResponder, UIApplicationDelegate {
// NOTE: if your app uses a SceneDelegate, this will NOT work!
func application(\_ app: UIApplication, open url: URL, options: [UIApplication.OpenURLOptionsKey : Any] = [:]) -> Bool {
return Superwall.shared.handleDeepLink(url)
}
}

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Handling Deep Links (Android)

In your MainActivity (or the activity specified in your intent-filter), add the following Kotlin code to handle deep links:

class MainActivity : AppCompatActivity() {
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)

        // Respond to deep links
        respondToDeepLinks()
    }

    private fun respondToDeepLinks() {
        intent?.data?.let { uri ->
            Superwall.instance.handleDeepLink(uri)
        }
    }

}

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Previewing Paywalls

Next, build and run your app on your phone.

Then, head to the Superwall Dashboard. Click on Settings from the Dashboard panel on the left, then select General:

With the General tab selected, type your custom URL scheme, without slashes, into the Apple Custom URL Scheme field:

Next, open your paywall from the dashboard and click Preview. You’ll see a QR code appear in a pop-up:

On your device, scan this QR code. You can do this via Apple’s Camera app. This will take you to a paywall viewer within your app, where you can preview all your paywalls in different configurations.