# handleDeepLink()

A function that handles deep links and triggers paywalls based on configured campaigns.

> **Tip**

Configure deep link campaigns on the Superwall dashboard by adding the `deepLink` event to a campaign trigger.



> **Info**

Deep link events are also tracked via [`SuperwallEvent.DeepLink`](/docs/android/sdk-reference/SuperwallEvent) and sent to your [`SuperwallDelegate`](/docs/android/sdk-reference/SuperwallDelegate).



Purpose [#purpose]

Processes a deep link URL and triggers any associated paywall campaigns configured on the Superwall dashboard.

Signature [#signature]

```kotlin
fun Superwall.handleDeepLink(url: String)
```

```java
// Java
public void handleDeepLink(String url)
```

Parameters [#parameters]

<TypeTable
  type="{
  url: {
    type: &#x22;String&#x22;,
    description: &#x22;The deep link URL to process for paywall triggers.&#x22;,
    required: true,
  },
}"
/>

Returns / State [#returns--state]

This function returns `Unit`. If the URL matches a campaign configured on the dashboard, it may trigger a paywall presentation.

Usage [#usage]

In your Activity:

```kotlin
class MainActivity : AppCompatActivity() {
    
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        
        // Handle deep link on app launch
        intent?.let { handleIntent(it) }
    }
    
    override fun onNewIntent(intent: Intent?) {
        super.onNewIntent(intent)
        intent?.let { handleIntent(it) }
    }
    
    private fun handleIntent(intent: Intent) {
        val action = intent.action
        val data = intent.data
        
        if (Intent.ACTION_VIEW == action && data != null) {
            val url = data.toString()
            
            // Handle the deep link with Superwall
            Superwall.instance.handleDeepLink(url)
            
            // Continue with your app's deep link handling
            handleAppDeepLink(url)
        }
    }
}
```

In your manifest (declare your deep link schemes):

```xml
<activity
    android:name=".MainActivity"
    android:exported="true">
    
    <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="myapp" />
    </intent-filter>
    
    <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="https"
              android:host="myapp.com" />
    </intent-filter>
    
</activity>
```

Handle deep links in different scenarios:

```kotlin
fun handleDeepLinkFromNotification(url: String) {
    // Handle deep link from push notification
    Superwall.instance.handleDeepLink(url)
    navigateToContent(url)
}

fun handleDeepLinkFromWebView(url: String) {
    // Handle deep link from web view or external browser
    Superwall.instance.handleDeepLink(url)
    processWebViewDeepLink(url)
}
```

Java usage:

```java
public class MainActivity extends AppCompatActivity {
    
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        
        Intent intent = getIntent();
        handleIntent(intent);
    }
    
    @Override
    protected void onNewIntent(Intent intent) {
        super.onNewIntent(intent);
        handleIntent(intent);
    }
    
    private void handleIntent(Intent intent) {
        String action = intent.getAction();
        Uri data = intent.getData();
        
        if (Intent.ACTION_VIEW.equals(action) && data != null) {
            String url = data.toString();
            
            // Handle the deep link with Superwall
            Superwall.getInstance().handleDeepLink(url);
            
            // Continue with your app's deep link handling
            handleAppDeepLink(url);
        }
    }
}
```

Example deep link campaign setup:

```kotlin
// When users click a deep link like "myapp://premium-feature"
// The dashboard campaign can be configured to:
// 1. Track the deepLink event
// 2. Show a paywall if user is not subscribed
// 3. Direct to premium content if user is subscribed

Superwall.instance.handleDeepLink("myapp://premium-feature?source=email")
```