From 556a45da6b9bc9137d8c219856ad83e57c10e1d1 Mon Sep 17 00:00:00 2001
From: Kyle Corry <kylecorry31@gmail.com>
Date: Sat, 4 Nov 2023 11:18:00 -0400
Subject: [PATCH] Disable camera toggle when no camera

---
 .../kylecorry/trail_sense/shared/views/CameraView.kt   |  3 ---
 .../augmented_reality/AugmentedRealityFragment.kt      | 10 ++++++++++
 .../tools/augmented_reality/AugmentedRealityView.kt    |  5 ++---
 3 files changed, 12 insertions(+), 6 deletions(-)

diff --git a/app/src/main/java/com/kylecorry/trail_sense/shared/views/CameraView.kt b/app/src/main/java/com/kylecorry/trail_sense/shared/views/CameraView.kt
index 37c064951..1e9411120 100644
--- a/app/src/main/java/com/kylecorry/trail_sense/shared/views/CameraView.kt
+++ b/app/src/main/java/com/kylecorry/trail_sense/shared/views/CameraView.kt
@@ -90,8 +90,6 @@ class CameraView(context: Context, attrs: AttributeSet?) : FrameLayout(context,
             isStarted = true
         }
 
-        alpha = 1f
-
         camera?.stop(this::onCameraUpdate)
         imageListener = onImage
         camera = Camera(
@@ -110,7 +108,6 @@ class CameraView(context: Context, attrs: AttributeSet?) : FrameLayout(context,
     fun stop() {
         camera?.stop(this::onCameraUpdate)
         camera = null
-        alpha = 0f
         synchronized(startLock) {
             isStarted = false
         }
diff --git a/app/src/main/java/com/kylecorry/trail_sense/tools/augmented_reality/AugmentedRealityFragment.kt b/app/src/main/java/com/kylecorry/trail_sense/tools/augmented_reality/AugmentedRealityFragment.kt
index 2e1bd9f19..1640d9abf 100644
--- a/app/src/main/java/com/kylecorry/trail_sense/tools/augmented_reality/AugmentedRealityFragment.kt
+++ b/app/src/main/java/com/kylecorry/trail_sense/tools/augmented_reality/AugmentedRealityFragment.kt
@@ -9,6 +9,9 @@ import android.view.ViewGroup
 import android.widget.FrameLayout
 import androidx.camera.view.PreviewView
 import androidx.core.graphics.drawable.toBitmapOrNull
+import androidx.core.view.isInvisible
+import androidx.core.view.isVisible
+import com.kylecorry.andromeda.camera.Camera
 import com.kylecorry.andromeda.core.coroutines.onDefault
 import com.kylecorry.andromeda.core.system.Resources
 import com.kylecorry.andromeda.core.time.CoroutineTimer
@@ -115,8 +118,12 @@ class AugmentedRealityFragment : BoundFragment<FragmentAugmentedRealityBinding>(
         super.onResume()
 
         binding.arView.start()
+        isCameraEnabled = Camera.isAvailable(requireContext())
+        binding.cameraToggle.isVisible = isCameraEnabled
         if (isCameraEnabled) {
             startCamera()
+        } else {
+            stopCamera()
         }
         updateAstronomyLayers()
     }
@@ -128,10 +135,12 @@ class AugmentedRealityFragment : BoundFragment<FragmentAugmentedRealityBinding>(
         binding.arView.backgroundFillColor = Color.TRANSPARENT
         requestCamera {
             if (it) {
+                binding.camera.isVisible = true
                 binding.camera.start(
                     readFrames = false, shouldStabilizePreview = false
                 )
             } else {
+                binding.camera.isInvisible = true
                 isCameraEnabled = false
                 binding.cameraToggle.setImageResource(R.drawable.ic_camera_off)
                 binding.arView.backgroundFillColor = Color.BLACK
@@ -145,6 +154,7 @@ class AugmentedRealityFragment : BoundFragment<FragmentAugmentedRealityBinding>(
         isCameraEnabled = false
         binding.arView.backgroundFillColor = Color.BLACK
         binding.camera.stop()
+        binding.camera.isInvisible = true
     }
 
     override fun onPause() {
diff --git a/app/src/main/java/com/kylecorry/trail_sense/tools/augmented_reality/AugmentedRealityView.kt b/app/src/main/java/com/kylecorry/trail_sense/tools/augmented_reality/AugmentedRealityView.kt
index 034dad107..a90248e33 100644
--- a/app/src/main/java/com/kylecorry/trail_sense/tools/augmented_reality/AugmentedRealityView.kt
+++ b/app/src/main/java/com/kylecorry/trail_sense/tools/augmented_reality/AugmentedRealityView.kt
@@ -63,7 +63,6 @@ class AugmentedRealityView : CanvasView {
     private var rotationMatrix = FloatArray(16)
     private val quaternion = FloatArray(4)
     private val orientation = FloatArray(3)
-    private val tempRotationResult = FloatArray(4)
     private val tempWorldVector = FloatArray(4)
 
 
@@ -377,8 +376,8 @@ class AugmentedRealityView : CanvasView {
         tempWorldVector[1] = vector.y
         tempWorldVector[2] = vector.z
         tempWorldVector[3] = 1f
-        Matrix.multiplyMV(tempRotationResult, 0, rotationMatrix, 0, tempWorldVector, 0)
-        return Vector3(tempRotationResult[0], tempRotationResult[1], tempRotationResult[2])
+        Matrix.multiplyMV(tempWorldVector, 0, rotationMatrix, 0, tempWorldVector, 0)
+        return Vector3(tempWorldVector[0], tempWorldVector[1], tempWorldVector[2])
     }
 
     private fun toSpherical(vector: Vector3): Vector3 {