1. Previewing paywalls on your device before going live.
  2. Deep linking to specific campaigns.

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.

Adding a Custom Intent Filter (Android)

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

<activity android:name=".MainActivity">
        <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" />

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

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:

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

Deep links can be used as events in a campaign to present paywalls. Simply add deepLink_open as an event and the URL parameters of the deep link can be used as parameters!

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.