♻️ Refactor: camera unbinding 메서드를 동기 방식으로 수정

Author: chanho0908

feature/task-certification/src/main/java/com/twix/task_certification/TaskCertificationScreen.kt

@@ -83,9 +83,7 @@ fun TaskCertificationRoute(
         }
 
         onDispose {
-            coroutineScope.launch {
-                camera.unbind()
-            }
+            camera.unbind()
         }
     }
 

feature/task-certification/src/main/java/com/twix/task_certification/camera/Camera.kt

@@ -15,7 +15,7 @@ interface Camera {
         lens: CameraSelector,
     )
 
-    suspend fun unbind()
+    fun unbind()
 
     suspend fun takePicture(): Result<Uri>
 

feature/task-certification/src/main/java/com/twix/task_certification/camera/CaptureCamera.kt

@@ -29,6 +29,7 @@ class CaptureCamera(
 ) : Camera {
     private var cameraControl: CameraControl? = null
     private var cameraInfo: CameraInfo? = null
+    private var cameraProvider: ProcessCameraProvider? = null
 
     private val _surfaceRequests = MutableStateFlow<CameraPreview?>(null)
     override val surfaceRequests: StateFlow<CameraPreview?> = _surfaceRequests.asStateFlow()
@@ -54,6 +55,8 @@ class CaptureCamera(
         lens: CameraSelector,
     ) {
         val provider = ProcessCameraProvider.awaitInstance(context)
+        cameraProvider = provider
+
         provider.unbindAll()
 
         val camera =
@@ -118,8 +121,8 @@ class CaptureCamera(
             }
         }
 
-    override suspend fun unbind() {
-        ProcessCameraProvider.awaitInstance(context).unbindAll()
+    override fun unbind() {
+        cameraProvider?.unbindAll()
     }
 
     override fun toggleTorch(torch: TorchStatus) {