ignore dummy's view appear/disappear message

ios/Classes/1.5/FLB2FlutterEngine.m

@@ -52,6 +52,8 @@
         _dummy = [[FLB2FlutterViewContainer alloc] initWithEngine:_engine
                                                           nibName:nil
                                                            bundle:nil];
+        _dummy.name = kIgnoreMessageWithName;
+        
         Class clazz = NSClassFromString(@"GeneratedPluginRegistrant");
         if (clazz) {
             if ([clazz respondsToSelector:NSSelectorFromString(@"registerWithRegistry:")]) {

ios/Classes/1.5/FLB2FlutterViewContainer.h

@@ -28,6 +28,7 @@
 
 NS_ASSUME_NONNULL_BEGIN
 @interface FLB2FlutterViewContainer  : FlutterViewController<FLBFlutterContainer>
+@property (nonatomic,copy,readwrite) NSString *name;
 - (void)surfaceUpdated:(BOOL)appeared;
 - (void)setEnableForRunnersBatch:(BOOL)enable;
 @end

ios/Classes/1.5/FLB2FlutterViewContainer.m

@@ -33,7 +33,6 @@
 #define FLUTTER_VC FLUTTER_APP.flutterViewController
 
 @interface FLB2FlutterViewContainer  ()
-@property (nonatomic,copy,readwrite) NSString *name;
 @property (nonatomic,strong,readwrite) NSDictionary *params;
 @property (nonatomic,assign) long long identifier;
 @end

ios/Classes/Messaging/BoostMessageChannel.h

@@ -26,6 +26,8 @@
 #import <Flutter/Flutter.h>
 #import "FLBTypes.h"
 
+#define kIgnoreMessageWithName  @"__flutterboost_dummy__"
+
  @interface BoostMessageChannel : NSObject
 
  + (void)onNativePageResult:(void (^)(NSNumber *))result uniqueId:(NSString *)uniqueId key:(NSString *)key resultData:(NSDictionary *)resultData params:(NSDictionary *)params;

ios/Classes/Messaging/BoostMessageChannel.mm

@@ -100,6 +100,10 @@
  
  + (void)didShowPageContainer:(void (^)(NSNumber *))result pageName:(NSString *)pageName params:(NSDictionary *)params uniqueId:(NSString *)uniqueId
  {
+     if ([pageName isEqualToString:kIgnoreMessageWithName]) {
+         return;
+     }
+     
      NSMutableDictionary *tmp = [NSMutableDictionary dictionary];
      if(pageName) tmp[@"pageName"] = pageName;
      if(params) tmp[@"params"] = params;
@@ -113,6 +117,10 @@
  
  + (void)willShowPageContainer:(void (^)(NSNumber *))result pageName:(NSString *)pageName params:(NSDictionary *)params uniqueId:(NSString *)uniqueId
  {
+     if ([pageName isEqualToString:kIgnoreMessageWithName]) {
+         return;
+     }
+     
      NSMutableDictionary *tmp = [NSMutableDictionary dictionary];
      if(pageName) tmp[@"pageName"] = pageName;
      if(params) tmp[@"params"] = params;
@@ -126,6 +134,10 @@
  
  + (void)willDisappearPageContainer:(void (^)(NSNumber *))result pageName:(NSString *)pageName params:(NSDictionary *)params uniqueId:(NSString *)uniqueId
  {
+     if ([pageName isEqualToString:kIgnoreMessageWithName]) {
+         return;
+     }
+     
      NSMutableDictionary *tmp = [NSMutableDictionary dictionary];
      if(pageName) tmp[@"pageName"] = pageName;
      if(params) tmp[@"params"] = params;
@@ -139,6 +151,10 @@
  
  + (void)didDisappearPageContainer:(void (^)(NSNumber *))result pageName:(NSString *)pageName params:(NSDictionary *)params uniqueId:(NSString *)uniqueId
  {
+     if ([pageName isEqualToString:kIgnoreMessageWithName]) {
+         return;
+     }
+     
      NSMutableDictionary *tmp = [NSMutableDictionary dictionary];
      if(pageName) tmp[@"pageName"] = pageName;
      if(params) tmp[@"params"] = params;
@@ -152,6 +168,10 @@
  
  + (void)didInitPageContainer:(void (^)(NSNumber *))result pageName:(NSString *)pageName params:(NSDictionary *)params uniqueId:(NSString *)uniqueId
  {
+     if ([pageName isEqualToString:kIgnoreMessageWithName]) {
+         return;
+     }
+     
      NSMutableDictionary *tmp = [NSMutableDictionary dictionary];
      if(pageName) tmp[@"pageName"] = pageName;
      if(params) tmp[@"params"] = params;
@@ -169,6 +189,10 @@
  
  + (void)willDeallocPageContainer:(void (^)(NSNumber *))result pageName:(NSString *)pageName params:(NSDictionary *)params uniqueId:(NSString *)uniqueId
  {
+     if ([pageName isEqualToString:kIgnoreMessageWithName]) {
+         return;
+     }
+     
      NSMutableDictionary *tmp = [NSMutableDictionary dictionary];
      if(pageName) tmp[@"pageName"] = pageName;
      if(params) tmp[@"params"] = params;