fix(mobile-voice): restore camera and discovery in dev builds

Author: Ryan Vogel

packages/mobile-voice/src/app/index.tsx

@@ -2735,22 +2735,22 @@ export default function DictationScreen() {
     scanLockRef.current = false
     const current =
       camera ??
-      (await import("expo-camera")
-        .catch(() => null)
-        .then((mod) => {
-          if (!mod) return null
-
+      (() => {
+        try {
+          // Expo dev builds were failing to resolve this native module through async import().
+          const mod = require("expo-camera") as typeof import("expo-camera") & {
+            Camera?: { requestCameraPermissionsAsync?: unknown }
+          }
           const direct = (mod as { requestCameraPermissionsAsync?: unknown }).requestCameraPermissionsAsync
-          const fromCamera = (mod as { Camera?: { requestCameraPermissionsAsync?: unknown } }).Camera
-            ?.requestCameraPermissionsAsync
+          const fromCamera = mod.Camera?.requestCameraPermissionsAsync
           let requestCameraPermissionsAsync: (() => Promise<{ granted: boolean }>) | null = null
           if (typeof direct === "function") {
             requestCameraPermissionsAsync = direct as () => Promise<{ granted: boolean }>
           } else if (typeof fromCamera === "function") {
             requestCameraPermissionsAsync = fromCamera as () => Promise<{ granted: boolean }>
           }
 
-          if (!requestCameraPermissionsAsync) {
+          if (!mod.CameraView || !requestCameraPermissionsAsync) {
             return null
           }
 
@@ -2760,7 +2760,10 @@ export default function DictationScreen() {
           }
           setCamera(next)
           return next
-        }))
+        } catch {
+          return null
+        }
+      })()
     if (!current) {
       Alert.alert("Scanner unavailable", "This build does not include camera support. Reinstall the latest dev build.")
       return

packages/mobile-voice/src/hooks/use-mdns-discovery.ts

@@ -214,41 +214,38 @@ export function useMdnsDiscovery(input: UseMdnsDiscoveryInput) {
 
     startScanRef.current = startScan
 
-    void import("react-native-zeroconf")
-      .then((module) => {
-        if (!active) return
-
-        const mod = module as ZeroconfModule
-        const Zeroconf = mod.default
-        if (typeof Zeroconf !== "function") {
-          setDiscoveryAvailable(false)
-          setDiscoveryStatus("error")
-          setDiscoveryError("mDNS module unavailable")
-          return
-        }
-
-        zeroconf = new Zeroconf()
-        androidImplType = Platform.OS === "android" ? (mod.ImplType?.DNSSD ?? "DNSSD") : undefined
-        setDiscoveryAvailable(true)
+    try {
+      // Expo dev builds were failing to resolve this native module through async import().
+      const mod = require("react-native-zeroconf") as ZeroconfModule
+      const Zeroconf = mod.default
+      if (typeof Zeroconf !== "function") {
+        setDiscoveryAvailable(false)
+        setDiscoveryStatus("error")
+        setDiscoveryError("mDNS module unavailable")
+        return
+      }
 
-        zeroconf.on("resolved", rebuildServices)
-        zeroconf.on("remove", rebuildServices)
-        zeroconf.on("update", rebuildServices)
-        zeroconf.on("error", (error) => {
-          if (!active) return
-          setDiscoveryStatus("error")
-          setDiscoveryError(toErrorMessage(error))
-        })
+      zeroconf = new Zeroconf()
+      androidImplType = Platform.OS === "android" ? (mod.ImplType?.DNSSD ?? "DNSSD") : undefined
+      setDiscoveryAvailable(true)
 
-        startScan()
-      })
-      .catch((error) => {
+      zeroconf.on("resolved", rebuildServices)
+      zeroconf.on("remove", rebuildServices)
+      zeroconf.on("update", rebuildServices)
+      zeroconf.on("error", (error) => {
         if (!active) return
-        setDiscoveryAvailable(false)
         setDiscoveryStatus("error")
         setDiscoveryError(toErrorMessage(error))
       })
 
+      startScan()
+    } catch (error) {
+      if (!active) return
+      setDiscoveryAvailable(false)
+      setDiscoveryStatus("error")
+      setDiscoveryError(toErrorMessage(error))
+    }
+
     return () => {
       active = false
       startScanRef.current = null