Fix USB Camera BufferQueue abandoned crash

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

@@ -156,9 +156,25 @@ class UsbCameraView(context: Context, appContext: AppContext) : ExpoView(context
                 }
             } catch (ioe: Exception) {}
             
-            // Start the camera preview asynchronously
-            post {
-                startPreview()
+            // Handle SurfaceTexture lifecycle to prevent BufferQueue abandonment
+            // when the view is obscured (e.g. by PreviewScreen)
+            textureView.surfaceTextureListener = object : android.view.TextureView.SurfaceTextureListener {
+                override fun onSurfaceTextureAvailable(surface: android.graphics.SurfaceTexture, width: Int, height: Int) {
+                    startPreview()
+                }
+
+                override fun onSurfaceTextureSizeChanged(surface: android.graphics.SurfaceTexture, width: Int, height: Int) {}
+
+                override fun onSurfaceTextureDestroyed(surface: android.graphics.SurfaceTexture): Boolean {
+                    try {
+                        sharedCameraClient?.getCameraStrategy()?.stopPreview()
+                    } catch (e: Exception) {
+                        android.util.Log.e("UsbCameraView", "SurfaceTextureDestroyed err", e)
+                    }
+                    return true
+                }
+
+                override fun onSurfaceTextureUpdated(surface: android.graphics.SurfaceTexture) {}
             }
         } catch (e: Throwable) {
             val errorMsg = "CRASH IN INIT: ${e.message}\n${android.util.Log.getStackTraceString(e)}"