Cleaned up merge UI, added reset step button

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

@@ -133,6 +133,7 @@ class BowlingCameraActivity : AppCompatActivity(), CameraXController.Callback {
                 startActivity(Intent(this, ParameterEditorActivity::class.java))
             }
         }
+        binding.btnResetCounter.setOnClickListener { viewModel.resetStepCounter() }
 
         observeViewModel()
 
@@ -243,7 +244,8 @@ class BowlingCameraActivity : AppCompatActivity(), CameraXController.Callback {
                         // detection is actually seeing each footfall while
                         // testing/tuning it, rather than only finding out at
                         // step 5 that earlier steps were silently missed.
-                        if (events.isEmpty()) {
+                        val isRecording = viewModel.recordingState.value is CameraViewModel.RecordingState.Recording
+                        if (events.isEmpty() || !isRecording) {
                             binding.textFinalPosition.visibility = View.GONE
                         } else {
                             val reachedFinal = events.size >= FINAL_STEP_COUNT
@@ -264,8 +266,9 @@ class BowlingCameraActivity : AppCompatActivity(), CameraXController.Callback {
                 }
                 launch {
                     viewModel.poseStageFeedback.collect { feedback ->
+                        val isRecording = viewModel.recordingState.value is CameraViewModel.RecordingState.Recording
                         binding.textPoseStageFeedback.text = feedback
-                        binding.textPoseStageFeedback.visibility = if (feedback != null) View.VISIBLE else View.GONE
+                        binding.textPoseStageFeedback.visibility = if ((feedback != null && isRecording)) View.VISIBLE else View.GONE
                     }
                 }
                 // Deliberately its own collector, independent of stepEvents
@@ -314,6 +317,8 @@ class BowlingCameraActivity : AppCompatActivity(), CameraXController.Callback {
             is CameraViewModel.RecordingState.Idle -> {
                 binding.layoutRecordingIndicator.visibility = View.GONE
                 stepCounterUi.setVisible(visible = false)
+                binding.textFinalPosition.visibility = View.GONE
+                binding.textPoseStageFeedback.visibility = View.GONE
                 binding.btnRecord.isEnabled = true
                 binding.btnRecord.setText(R.string.record)
                 // Pose mode can only be changed between recordings, not