feat(android): add support for layout direction in ReactBottomNavigationView

Author: Ahmed Awaad

packages/react-native-bottom-tabs/android/src/main/java/com/rcttabview/RCTTabView.kt

@@ -127,6 +127,10 @@ class ReactBottomNavigationView(context: Context) : LinearLayout(context) {
     layout(left, top, right, bottom)
   }
 
+  fun applyDirection(dir: Int) {
+      bottomNavigation.layoutDirection = dir   
+  }
+
   override fun requestLayout() {
     super.requestLayout()
     @Suppress("SENSELESS_COMPARISON") // layoutCallback can be null here since this method can be called in init

packages/react-native-bottom-tabs/android/src/main/java/com/rcttabview/RCTTabViewManager.kt

@@ -167,6 +167,15 @@ class RCTTabViewManager(context: ReactApplicationContext) :
       view.isHapticFeedbackEnabled = value
   }
 
+  override fun setLayoutDirection(view: ReactBottomNavigationView, value: String?) {
+      val direction = when (value) {
+          "rtl" -> View.LAYOUT_DIRECTION_RTL
+          "ltr" -> View.LAYOUT_DIRECTION_LTR
+          else -> View.LAYOUT_DIRECTION_LOCALE
+      }
+      view.applyDirection(direction)
+  }
+
   override fun setFontFamily(view: ReactBottomNavigationView?, value: String?) {
     view?.setFontFamily(value)
   }