Hide switch camera button if less than 2 cameras

app/src/main/java/org/linphone/activities/assistant/viewmodels/QrCodeViewModel.kt

@@ -41,7 +41,7 @@ class QrCodeViewModel : ViewModel() {
 
     init {
         coreContext.core.addListener(listener)
-        showSwitchCamera.value = coreContext.core.videoDevicesList.size > 1
+        showSwitchCamera.value = coreContext.showSwitchCameraButton()
     }
 
     override fun onCleared() {

app/src/main/java/org/linphone/activities/call/viewmodels/ControlsViewModel.kt

@@ -44,6 +44,8 @@ class ControlsViewModel : ViewModel() {
 
     val isVideoUpdateInProgress = MutableLiveData<Boolean>()
 
+    val showSwitchCamera = MutableLiveData<Boolean>()
+
     val isPauseEnabled = MutableLiveData<Boolean>()
 
     val isRecording = MutableLiveData<Boolean>()
@@ -129,6 +131,7 @@ class ControlsViewModel : ViewModel() {
 
         isRecording.value = currentCall?.isRecording
         isVideoUpdateInProgress.value = false
+        showSwitchCamera.value = coreContext.showSwitchCameraButton()
 
         updateUI()
     }

app/src/main/java/org/linphone/activities/main/dialer/viewmodels/DialerViewModel.kt

@@ -35,6 +35,8 @@ class DialerViewModel : ViewModel() {
 
     val showPreview = MutableLiveData<Boolean>()
 
+    val showSwitchCamera = MutableLiveData<Boolean>()
+
     val onKeyClick: NumpadDigitListener = object : NumpadDigitListener {
         override fun handleClick(key: Char) {
             enteredUri.value += key.toString()
@@ -73,6 +75,8 @@ class DialerViewModel : ViewModel() {
         enteredUri.value = ""
         atLeastOneCall.value = coreContext.core.callsNb > 0
         transferVisibility.value = false
+
+        showSwitchCamera.value = coreContext.showSwitchCameraButton()
     }
 
     override fun onCleared() {

app/src/main/java/org/linphone/core/CoreContext.kt

@@ -363,6 +363,10 @@ class CoreContext(val context: Context, coreConfig: Config) {
         call.update(null)
     }
 
+    fun showSwitchCameraButton(): Boolean {
+        return core.videoDevicesList.orEmpty().size > 2 // Count StaticImage camera
+    }
+
     fun createCallOverlay() {
         if (!corePreferences.showCallOverlay || callOverlay != null) {
             return

app/src/main/res/layout-land/call_controls_fragment.xml

@@ -116,7 +116,7 @@
         <ImageView
             android:onClick="@{() -> controlsViewModel.switchCamera()}"
             android:enabled="@{!viewModel.callPausedByRemote}"
-            android:visibility="@{controlsViewModel.isVideoEnabled ? View.VISIBLE : View.GONE, default=gone}"
+            android:visibility="@{controlsViewModel.isVideoEnabled &amp;&amp; controlsViewModel.showSwitchCamera ? View.VISIBLE : View.GONE, default=gone}"
             android:contentDescription="@string/content_description_switch_camera"
             android:layout_width="50dp"
             android:layout_height="50dp"

app/src/main/res/layout-sw533dp-land/dialer_fragment.xml

@@ -63,7 +63,7 @@
 
         <ImageView
             android:onClick="@{() -> viewModel.switchCamera()}"
-            android:visibility="@{viewModel.showPreview ? View.VISIBLE : View.GONE, default=gone}"
+            android:visibility="@{viewModel.showPreview &amp;&amp; viewModel.showSwitchCamera ? View.VISIBLE : View.GONE, default=gone}"
             android:contentDescription="@string/content_description_switch_camera"
             android:layout_alignParentLeft="true"
             android:layout_alignParentTop="true"

app/src/main/res/layout-sw533dp/dialer_fragment.xml

@@ -60,7 +60,7 @@
 
         <ImageView
             android:onClick="@{() -> viewModel.switchCamera()}"
-            android:visibility="@{viewModel.showPreview ? View.VISIBLE : View.GONE, default=gone}"
+            android:visibility="@{viewModel.showPreview &amp;&amp; viewModel.showSwitchCamera ? View.VISIBLE : View.GONE, default=gone}"
             android:contentDescription="@string/content_description_switch_camera"
             android:layout_alignParentLeft="true"
             android:layout_alignParentTop="true"

app/src/main/res/layout/call_controls_fragment.xml

@@ -208,7 +208,7 @@
         <ImageView
             android:onClick="@{() -> controlsViewModel.switchCamera()}"
             android:enabled="@{!viewModel.callPausedByRemote}"
-            android:visibility="@{controlsViewModel.isVideoEnabled ? View.VISIBLE : View.GONE, default=gone}"
+            android:visibility="@{controlsViewModel.isVideoEnabled &amp;&amp; controlsViewModel.showSwitchCamera ? View.VISIBLE : View.GONE, default=gone}"
             android:contentDescription="@string/content_description_switch_camera"
             android:layout_width="50dp"
             android:layout_height="50dp"