Fix abandoned BufferQueue and CameraX crash by unmounting UsbCameraView when obscured; fix permission receiver leak

modules/usb-camera/android/src/main/java/expo/modules/usbcamera/UsbCameraView.kt

@@ -24,6 +24,9 @@ class UsbCameraView(context: Context, appContext: AppContext) : ExpoView(context
     private val onCameraError by EventDispatcher()
     private val onCameraState by EventDispatcher()
 
+    private var permissionReceiver: android.content.BroadcastReceiver? = null
+    private var registeredContext: Context? = null
+
     init {
         textureView = AspectRatioTextureView(context)
         addView(textureView, LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT))
@@ -65,7 +68,7 @@ class UsbCameraView(context: Context, appContext: AppContext) : ExpoView(context
                 android.util.Log.e("UsbCameraView", "Error checking USB devices: ${e.message}", e)
             }
 
-            val permissionReceiver = object : android.content.BroadcastReceiver() {
+            permissionReceiver = object : android.content.BroadcastReceiver() {
                 override fun onReceive(context: Context, intent: android.content.Intent) {
                     if ("com.schnappix.USB_PERMISSION" == intent.action) {
                         synchronized(this) {
@@ -82,6 +85,7 @@ class UsbCameraView(context: Context, appContext: AppContext) : ExpoView(context
             }
             
             val filter = android.content.IntentFilter("com.schnappix.USB_PERMISSION")
+            registeredContext = activityContext
             if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.TIRAMISU) {
                 activityContext.registerReceiver(permissionReceiver, filter, Context.RECEIVER_EXPORTED)
             } else {
@@ -206,6 +210,16 @@ class UsbCameraView(context: Context, appContext: AppContext) : ExpoView(context
     }
 
     fun onDestroy() {
+        try {
+            permissionReceiver?.let {
+                registeredContext?.unregisterReceiver(it)
+            }
+        } catch (e: Exception) {
+            e.printStackTrace()
+        }
+        permissionReceiver = null
+        registeredContext = null
+
         try {
             cameraClient?.closeCamera()
         } catch (e: Exception) {