fix: setFollowingPerspective functionality for iOS (#222)

Author: jokerttu

ios/react-native-navigation-sdk/NavModule.m

@@ -79,16 +79,7 @@ - (BOOL)checkNavigatorWithError:(RCTPromiseRejectBlock)reject navigator:(GMSNavi
 }
 
 - (void)initializeSession {
-    // TODO(jokerttu): init mapviews on navigation initialization
-    // [_mapView.settings setCompassButton:YES];
-    // [self setMyLocationEnabled:YES];
-    // [_mapView.settings setMyLocationButton:YES];
-    
-    // [_mapView.navigationUIDelegate self];
-    //  _mapView.navigationEnabled = YES;
-    
     // Try to create a navigation session.
-    
     if (self->_session == nil && self->_session.navigator == nil) {
         GMSNavigationSession *session =
         [GMSNavigationServices createNavigationSession];
@@ -120,10 +111,6 @@ - (void)initializeSession {
     NavViewModule *navViewModule = [NavViewModule sharedInstance];
     [navViewModule attachViewsToNavigationSession:_session];
 
-    // TODO(jokerttu): init mapviews on navigation initialization
-    //_mapView.cameraMode = GMSNavigationCameraModeFollowing;
-    //[_mapView setFollowingPerspective:GMSNavigationCameraPerspectiveTilted];
-    
     [self onNavigationReady];
 }
 

ios/react-native-navigation-sdk/NavViewController.m

@@ -282,6 +282,7 @@ - (void)setFollowingPerspective:(NSNumber *)index {
     } else {
         [_mapView setFollowingPerspective:GMSNavigationCameraPerspectiveTilted];
     }
+    _mapView.cameraMode = GMSNavigationCameraModeFollowing;
 }
 
 - (void)setSpeedometerEnabled:(BOOL)isEnabled {
@@ -304,7 +305,6 @@ - (instancetype)initWithSize:(double)height width:(double)width {
 }
 
 - (BOOL)attachToNavigationSession:(GMSNavigationSession *)session {
-    BOOL navigationWasEnabled = _mapView.isNavigationEnabled;
     BOOL result = [_mapView enableNavigationWithSession:session];
     _mapView.navigationUIDelegate = self;
     return result;