some fix

example/ios/Runner/DemoRouter.m

@@ -21,7 +21,7 @@
     return instance;
 }
 
-// Boost 2 switch
+//AB Boost 2 switch
 - (BOOL)useBoost2
 {
     return YES;
@@ -57,7 +57,7 @@
     BOOL animated = [exts[@"animated"] boolValue];
     animated = YES;
     FLBFlutterViewContainer *vc = (id)self.navigationController.presentedViewController;
-    if([vc isKindOfClass:FLBFlutterViewContainer.class] && [vc.uniqueIDString isEqual: uid]){
+    if([vc isKindOfClass:FLB2FlutterViewContainer.class] && [vc.uniqueIDString isEqual: uid]){
         [vc dismissViewControllerAnimated:animated completion:^{}];
     }else{
         [self.navigationController popViewControllerAnimated:animated];
@@ -93,9 +93,6 @@
     }
 }
 
-
-
-
 - (void)closePage:(NSString *)uid animated:(BOOL)animated params:(NSDictionary *)params completion:(void (^)(BOOL))completion
 {
     if([self useBoost2]){

example/ios/Runner/UIViewControllerDemo.m

@@ -25,13 +25,19 @@
 
 
 - (IBAction)pushFlutterPage:(id)sender {
-    [DemoRouter.sharedRouter openPage:@"first" params:@{} animated:YES completion:^(BOOL f){
+    [DemoRouter.sharedRouter openPage:@"first"
+                               params:@{}
+                             animated:YES
+                           completion:^(BOOL f){
 
     }];
 }
 
 - (IBAction)present:(id)sender {
-    [DemoRouter.sharedRouter openPage:@"second" params:@{@"present":@(YES)} animated:YES completion:^(BOOL f){}];
+    [DemoRouter.sharedRouter openPage:@"second"
+                               params:@{@"present":@(YES)}
+                             animated:YES
+                           completion:^(BOOL f){}];
 //    [self dismissViewControllerAnimated:YES completion:completion];
 }
 

example/lib/simple_page_widgets.dart

@@ -39,10 +39,6 @@ class SecondRouteWidget extends StatelessWidget {
             // Navigate back to first route when tapped.
             
             BoostContainerSettings settings = BoostContainer.of(context).settings;
-            if(settings.params.containsKey("result_id")){
-              String rid = settings.params["result_id"];
-            }
-
             FlutterBoost.singleton.close(settings.uniqueId,result: {"result":"data from second"});
           },
           child: Text('Go back with result!'),

ios/Classes/Boost/FLB2FlutterProvider.h

@@ -30,7 +30,6 @@
 
 NS_ASSUME_NONNULL_BEGIN
 
-#define RELEASE_1_0 1
 
 @protocol FLB2FlutterProvider <FLBFlutterViewProvider>
 

ios/Classes/Boost/FlutterBoostPlugin.m

@@ -29,6 +29,8 @@
 #import "BoostMessageChannel.h"
 #import "FlutterBoostPlugin_private.h"
 
+#define NSNull2Nil(_x_) if([_x_ isKindOfClass: NSNull.class]) _x_ = nil;
+
 @interface FlutterBoostPlugin()
 @end
 
@@ -53,6 +55,9 @@
         NSDictionary *exts = args[@"exts"];
         NSString *uid = args[@"uniqueId"];
         NSDictionary *resultData = args[@"result"];
+        NSNull2Nil(exts);
+        NSNull2Nil(resultData);
+        NSNull2Nil(uid);
         [[FlutterBoostPlugin sharedInstance].application close:uid
                                                         result:resultData
                                                           exts:exts
@@ -70,6 +75,9 @@
         NSString *url = args[@"url"];
         NSDictionary *urlParams = args[@"urlParams"];
         NSDictionary *exts = args[@"exts"];
+        NSNull2Nil(url);
+        NSNull2Nil(urlParams);
+        NSNull2Nil(exts);
         [[FlutterBoostPlugin sharedInstance].application open:url
                                                     urlParams:urlParams
                                                          exts:exts
@@ -87,7 +95,6 @@
 }
 
 
-
 + (instancetype)sharedInstance
 {
     static id _instance = nil;
@@ -119,12 +126,12 @@
     static dispatch_once_t onceToken;
     dispatch_once(&onceToken, ^{
         if([platform respondsToSelector:@selector(useBoost2)] && platform.useBoost2){
-            _factory = FLB2Factory.new;
+            self->_factory = FLB2Factory.new;
         }else{
-            _factory = FLBFactory.new;
+            self->_factory = FLBFactory.new;
         }
-        _application = [_factory createApplication:platform];
-        [_application startFlutterWithPlatform:platform
+        self->_application = [self->_factory createApplication:platform];
+        [self->_application startFlutterWithPlatform:platform
                                        onStart:callback];
     });
 }