How to properly handle deep links in Android with Jetpack Navigation and Dynamic Links?
I'm working on a personal project and I'm trying to implement deep linking in my Android app using Jetpack Navigation along with Firebase Dynamic Links. The core idea is to navigate to a specific screen based on the link structure. However, I'm facing an issue where the app doesn't navigate correctly and crashes when I try to open a dynamic link. Here's the relevant part of my `nav_graph.xml`: ```xml <fragment android:id="@+id/detailFragment" android:name="com.example.app.DetailFragment" android:label="Detail" tools:layout="@layout/fragment_detail"> <argument android:name="itemId" app:argType="string" /> </fragment> ``` In my `MainActivity`, I set up the intent filter in the `AndroidManifest.xml` like this: ```xml <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:host="example.com" android:scheme="https" /> </intent-filter> ``` I handle the incoming intent like this: ```kotlin override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) setContentView(R.layout.activity_main) val navController = findNavController(R.id.nav_host_fragment) handleIntent(intent, navController) } private fun handleIntent(intent: Intent, navController: NavController) { intent.data?.let { uri -> val itemId = uri.getQueryParameter("itemId") if (itemId != null) { val action = MainFragmentDirections.actionMainFragmentToDetailFragment(itemId) navController.navigate(action) } } } ``` However, I get a `java.lang.IllegalArgumentException: Required argument "itemId" is missing and does not have an android:defaultValue` when I try to open a link like `https://example.com/?itemId=123`. It seems that the argument isn't being passed correctly during navigation. I've also tried adding a default value in `nav_graph.xml`, but that didn't seem to change anything. Any ideas on what I might be missing? I am using Android API level 31 and the latest version of the Navigation component. Thanks for your help!