fix: view lifecycle issue (#473)

Author: jokerttu

android/src/main/java/com/google/android/react/navsdk/Command.java

@@ -16,14 +16,12 @@
 import androidx.annotation.NonNull;
 
 public enum Command {
-  CREATE_FRAGMENT(1, "createFragment"),
   MOVE_CAMERA(2, "moveCamera"),
   SET_MY_LOCATION_ENABLED(3, "setMyLocationEnabled"),
   SET_TRIP_PROGRESS_BAR_ENABLED(4, "setTripProgressBarEnabled"),
   SET_NAVIGATION_UI_ENABLED(5, "setNavigationUIEnabled"),
   SET_FOLLOWING_PERSPECTIVE(6, "setFollowingPerspective"),
   SET_NIGHT_MODE(7, "setNightMode"),
-  DELETE_FRAGMENT(8, "deleteFragment"),
   SET_SPEEDOMETER_ENABLED(9, "setSpeedometerEnabled"),
   SET_SPEED_LIMIT_ICON_ENABLED(10, "setSpeedLimitIconEnabled"),
   SET_ZOOM_LEVEL(11, "setZoomLevel"),

android/src/main/java/com/google/android/react/navsdk/EnumTranslationUtil.java

@@ -90,12 +90,10 @@ public static int getMapTypeFromJsValue(int jsValue) {
   }
 
   public static CustomTypes.FragmentType getFragmentTypeFromJsValue(int jsValue) {
-    switch (jsValue) {
-      case 0:
-      default:
-        return CustomTypes.FragmentType.MAP;
-      case 1:
-        return CustomTypes.FragmentType.NAVIGATION;
-    }
+    return switch (jsValue) {
+      case 0 -> CustomTypes.FragmentType.MAP;
+      case 1 -> CustomTypes.FragmentType.NAVIGATION;
+      default -> throw new IllegalStateException("Unexpected FragmentType value: " + jsValue);
+    };
   }
 }

android/src/main/java/com/google/android/react/navsdk/NavModule.java

@@ -194,7 +194,7 @@ public void initializeNavigator(
   }
 
   private void onNavigationReady() {
-    mNavViewManager.applyStylingOptions();
+    mNavViewManager.onNavigationReady();
 
     sendCommandToReactNative("onNavigationReady", null);
 

android/src/main/java/com/google/android/react/navsdk/NavViewFragment.java

@@ -119,6 +119,7 @@ public void applyStylingOptions() {
 
   public void setStylingOptions(StylingOptions stylingOptions) {
     mStylingOptions = stylingOptions;
+    applyStylingOptions();
   }
 
   public void setNightModeOption(int jsValue) {

android/src/main/java/com/google/android/react/navsdk/NavViewLayout.java

@@ -0,0 +1,55 @@
+/**
+ * Copyright 2023 Google LLC
+ *
+ * <p>Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of the License at
+ *
+ * <p>http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * <p>Unless required by applicable law or agreed to in writing, software distributed under the
+ * License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied. See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.android.react.navsdk;
+
+import android.content.Context;
+import android.widget.FrameLayout;
+import androidx.annotation.Nullable;
+import com.google.android.libraries.navigation.StylingOptions;
+
+public class NavViewLayout extends FrameLayout {
+  private CustomTypes.FragmentType fragmentType;
+  private StylingOptions stylingOptions;
+  private boolean isFragmentCreated = false;
+
+  public NavViewLayout(Context context) {
+    super(context);
+  }
+
+  public void setFragmentType(CustomTypes.FragmentType type) {
+    this.fragmentType = type;
+  }
+
+  @Nullable
+  public CustomTypes.FragmentType getFragmentType() {
+    return this.fragmentType;
+  }
+
+  public void setStylingOptions(@Nullable StylingOptions options) {
+    this.stylingOptions = options;
+  }
+
+  @Nullable
+  public StylingOptions getStylingOptions() {
+    return this.stylingOptions;
+  }
+
+  public boolean isFragmentCreated() {
+    return this.isFragmentCreated;
+  }
+
+  public void setFragmentCreated(boolean created) {
+    this.isFragmentCreated = created;
+  }
+}