fix(android): workaround on orientation for Android

Author: ThibaultBee

android/src/main/java/video/api/reactnative/livestream/LiveStreamView.kt

@@ -15,6 +15,7 @@ import video.api.livestream.enums.CameraFacingDirection
 import video.api.livestream.interfaces.IConnectionListener
 import video.api.livestream.models.AudioConfig
 import video.api.livestream.models.VideoConfig
+import video.api.reactnative.livestream.utils.OrientationManager
 import video.api.reactnative.livestream.utils.permissions.PermissionsManager
 import video.api.reactnative.livestream.utils.permissions.SerialPermissionsManager
 import video.api.reactnative.livestream.utils.showDialog
@@ -33,6 +34,8 @@ class LiveStreamView @JvmOverloads constructor(
     PermissionsManager((context as ThemedReactContext).reactApplicationContext)
   )
 
+  private val orientationManager = OrientationManager(context)
+
   // Connection listeners
   var onConnectionSuccess: (() -> Unit)? = null
   var onConnectionFailed: ((reason: String?) -> Unit)? = null
@@ -204,6 +207,15 @@ class LiveStreamView @JvmOverloads constructor(
       require(permissionsManager.hasPermission(Manifest.permission.CAMERA)) { "Missing permissions Manifest.permission.CAMERA" }
       require(permissionsManager.hasPermission(Manifest.permission.RECORD_AUDIO)) { "Missing permissions Manifest.permission.RECORD_AUDIO" }
 
+      /**
+       * Workaround to reapply video config in case orientation has changed.
+       * This happens because `configChanges` may be disabled in the AndroidManifest.xml of a RN
+       * application.
+       */
+      if (orientationManager.orientationHasChanged) {
+        liveStream.videoConfig = liveStream.videoConfig
+      }
+
       url?.let { liveStream.startStreaming(streamKey, it) }
         ?: liveStream.startStreaming(streamKey)
 
@@ -219,6 +231,7 @@ class LiveStreamView @JvmOverloads constructor(
   }
 
   override fun close() {
+    orientationManager.close()
     liveStream.release()
   }
 

android/src/main/java/video/api/reactnative/livestream/utils/OrientationManager.kt

@@ -0,0 +1,48 @@
+package video.api.reactnative.livestream.utils
+
+import android.content.Context
+import android.view.OrientationEventListener
+import java.io.Closeable
+
+class OrientationManager(context: Context) : Closeable {
+  private val orientationEventListener = object : OrientationEventListener(context) {
+    override fun onOrientationChanged(orientation: Int) {
+      currentOrientation = (orientation + 45) / 90 * 90 % 360
+    }
+  }.apply {
+    enable()
+  }
+
+  private var currentOrientation: Int = OrientationEventListener.ORIENTATION_UNKNOWN
+    set(value) {
+      if (field != value) {
+        if (field == OrientationEventListener.ORIENTATION_UNKNOWN) {
+          // First time we get an orientation value, don't consider it as a change
+          field = value
+          return
+        } else {
+          field = value
+          _orientationHasChanged = true
+        }
+      }
+    }
+
+
+  private var _orientationHasChanged: Boolean = false
+
+  val orientationHasChanged: Boolean
+    get() {
+      if (!orientationEventListener.canDetectOrientation()) {
+        // Assume orientation has changed if we can't detect it
+        return true
+      }
+
+      val orientationHasChanged = _orientationHasChanged
+      _orientationHasChanged = false
+      return orientationHasChanged
+    }
+
+  override fun close() {
+    orientationEventListener.disable()
+  }
+}