Merged Jw -> (Qi Ying -> Harine)

app/src/main/java/com/example/jnicpp/bowling/BowlingCameraActivity.kt

@@ -70,7 +70,7 @@ class BowlingCameraActivity : AppCompatActivity(), CameraXController.Callback {
     private lateinit var stepCounterUi: StepCounterUiController
     // class for FeedbackUI
     private lateinit var feedbackUI: FeedbackUI
-    private val stepLabels = listOf(
+    private val stepLabels = listOf<Int>(
         R.string.pose_phase_waiting,
         R.string.pose_phase_starting_stance,
         R.string.first_step,
@@ -82,7 +82,7 @@ class BowlingCameraActivity : AppCompatActivity(), CameraXController.Callback {
     private var currentStepIndex = 0
 
     private val permissionLauncher =
-        registerForActivityResult(ActivityResultContracts.RequestMultiplePermissions()) { _ ->
+        registerForActivityResult(ActivityResultContracts.RequestMultiplePermissions()) { _: Map<String, Boolean> ->
             val granted = CameraPermissions.allGranted(this)
             viewModel.onPermissionsResult(granted)
             if (granted) {
@@ -220,7 +220,8 @@ class BowlingCameraActivity : AppCompatActivity(), CameraXController.Callback {
                 }
                 launch {
                     viewModel.errorEvents.collect { message ->
-                        Toast.makeText(this@BowlingCameraActivity, message, Toast.LENGTH_LONG).show()
+                        Toast.makeText(this@BowlingCameraActivity, message, Toast.LENGTH_LONG)
+                            .show()
                     }
                 }
                 launch {
@@ -232,7 +233,12 @@ class BowlingCameraActivity : AppCompatActivity(), CameraXController.Callback {
                     }
                 }
                 launch {
-                    viewModel.handRaiseProgress.collect { progress -> stepCounterUi.renderHandRaiseProgress(progress) }
+                    viewModel.handRaiseProgress.collect { progress ->
+                        stepCounterUi.renderHandRaiseProgress(
+                            progress
+                        )
+                    }
+                }
                 // Deliberately its own collector, independent of stepEvents
                 // above -- delivery-phase feedback and step counting are
                 // separate concerns (see PosePhaseDetector's class doc).

app/src/main/java/com/example/jnicpp/bowling/CameraViewModel.kt

@@ -71,7 +71,7 @@ class CameraViewModel(application: Application) : AndroidViewModel(application)
     // live preview with pose overlay on but not recording doesn't feed it.
     private val stepCountingSession = StepCountingSession()
     /** @brief Time-ordered pose samples buffered for the current/most recent recording session. */
-    val poseFrames: List<PoseFrame> get() = poseFrameBuffer
+    val poseFrames: List<PoseFrame> get() = stepCountingSession.poseFrames
 
     // Extra SMA smoothing for ankle/hip landmarks specifically, on top of
     // PoseLandmarkSmoother's per-frame EMA -- see AnkleHipMovingAverageFilter.