update

ios/Classes/1.0/FLBFactory.h

+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 Alibaba Group
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+
+#import <Foundation/Foundation.h>
+#import "FLBAbstractFactory.h"
+
+NS_ASSUME_NONNULL_BEGIN
+
+@interface FLBFactory : NSObject<FLBAbstractFactory>
+
+@end
+
+NS_ASSUME_NONNULL_END

ios/Classes/1.0/FLBFactory.m

+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 Alibaba Group
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#import "FLBFactory.h"
+
+@implementation FLBFactory
+
+- (id<FLBFlutterApplicationInterface>)createApplication:(id<FLB2Platform>)platform
+{
+    
+}
+
+- (id<FLB2FlutterProvider>)createFlutterProvider:(id<FLB2Platform>)platform
+{
+    
+}
+
+@end

ios/Classes/1.0/FLBFlutterApplication.h

+/*
+ * The MIT License (MIT)
+ * 
+ * Copyright (c) 2019 Alibaba Group
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ * 
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#import <Foundation/Foundation.h>
+#import <Flutter/Flutter.h>
+
+#import "FLBFlutterApplicationInterface.h"
+
+NS_ASSUME_NONNULL_BEGIN
+@interface FLBFlutterApplication : NSObject<FLBFlutterApplicationInterface>
+
+@end
+
+NS_ASSUME_NONNULL_END

ios/Classes/1.0/FLBFlutterApplication.m

+/*
+ * The MIT License (MIT)
+ * 
+ * Copyright (c) 2019 Alibaba Group
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ * 
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#import "FLBFlutterApplication.h"
+#import "FLBFlutterContainerManager.h"
+#import "FLBFlutterEngine.h"
+
+@interface FLBFlutterApplication()
+@property (nonatomic,strong) FLBFlutterContainerManager *manager;
+@property (nonatomic,strong) id<FLB2FlutterProvider> viewProvider;
+@property (nonatomic,assign) BOOL isRunning;
+@end
+
+
+@implementation FLBFlutterApplication
+
++ (FLBFlutterApplication *)sharedApplication
+{
+    static FLBFlutterApplication *instance = nil;
+    static dispatch_once_t onceToken;
+    dispatch_once(&onceToken, ^{
+        instance = [self new];
+    });
+    return instance;
+}
+
+- (BOOL)isRunning
+{
+    return _isRunning;
+}
+
+- (id)flutterProvider
+{
+    return _viewProvider;
+}
+
+- (void)startFlutterWithPlatform:(id<FLB2Platform>)platform
+                         onStart:(void (^)(id<FlutterBinaryMessenger,FlutterTextureRegistry,FlutterPluginRegistry> _Nonnull))callback
+{
+    static dispatch_once_t onceToken;
+    dispatch_once(&onceToken, ^{
+        self.platform = platform;
+        self.viewProvider = [[FLBFlutterEngine alloc] init];
+        _isRunning = YES;
+        if(callback) callback(self.viewProvider.engine);
+    });
+}
+
+- (instancetype)init
+{
+    if (self = [super init]) {
+        _manager = [FLBFlutterContainerManager new];
+    }
+    return self;
+}
+
+- (void)dealloc
+{
+    [[NSNotificationCenter defaultCenter] removeObserver:self];
+}
+
+- (UIView *)flutterView
+{
+    return [self flutterViewController].view;
+}
+
+
+- (BOOL)contains:(FLBFlutterViewContainer  *)vc
+{
+    return [_manager contains:vc];
+}
+
+- (void)addUniqueViewController:(FLBFlutterViewContainer  *)vc
+{
+    return [_manager addUnique:vc];
+}
+
+- (void)removeViewController:(FLBFlutterViewContainer  *)vc
+{
+    return [_manager remove:vc];
+}
+
+
+- (BOOL)isTop:(NSString *)pageId
+{
+    return [_manager.peak isEqual:pageId];
+}
+
+- (void)pause
+{
+    [self.viewProvider pause];
+}
+
+- (void)resume
+{
+    [self.viewProvider resume];
+}
+
+- (void)inactive
+{
+    [self.viewProvider inactive];
+}
+
+- (FlutterViewController *)flutterViewController
+{
+    return self.flutterProvider.engine.viewController;
+}
+
+@end

ios/Classes/1.0/FLBFlutterEngine.h

+/*
+ * The MIT License (MIT)
+ * 
+ * Copyright (c) 2019 Alibaba Group
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ * 
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#import <Foundation/Foundation.h>
+#import "FLBFlutterProvider.h"
+
+NS_ASSUME_NONNULL_BEGIN
+
+@interface FLBFlutterEngine : NSObject<FLBFlutterProvider>
+@end
+
+NS_ASSUME_NONNULL_END

ios/Classes/1.0/FLBFlutterEngine.m

+/*
+ * The MIT License (MIT)
+ * 
+ * Copyright (c) 2019 Alibaba Group
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ * 
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#import "FLBFlutterEngine.h"
+#import <Flutter/Flutter.h>
+#import "FLBFlutterViewContainer.h"
+
+
+@interface FLBFlutterEngine()
+@property (nonatomic,strong) FlutterEngine *engine;
+@property (nonatomic,strong)  FLBFlutterViewContainer *dummy;
+@end
+
+@implementation FLBFlutterEngine
+
+- (instancetype)init
+{
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Warc-performSelector-leaks"
+    
+    if (self = [super init]) {
+        _engine = [[FlutterEngine alloc] initWithName:@"io.flutter" project:nil];
+        [_engine runWithEntrypoint:nil];
+        _dummy = [[FLBFlutterViewContainer alloc] initWithEngine:_engine
+                                                       nibName:nil
+                                                        bundle:nil];
+        Class clazz = NSClassFromString(@"GeneratedPluginRegistrant");
+        if (clazz) {
+            if ([clazz respondsToSelector:NSSelectorFromString(@"registerWithRegistry:")]) {
+                [clazz performSelector:NSSelectorFromString(@"registerWithRegistry:")
+                            withObject:_engine];
+            }
+        }
+    }
+    
+    return self;
+#pragma clang diagnostic pop
+}
+
+- (void)pause
+{
+    [[_engine lifecycleChannel] sendMessage:@"AppLifecycleState.pause"];
+}
+
+- (void)resume
+{
+    [[_engine lifecycleChannel] sendMessage:@"AppLifecycleState.resume"];
+}
+
+- (void)inactive
+{
+    [[_engine lifecycleChannel] sendMessage:@"AppLifecycleState.inactive"];
+}
+
+
+- (FlutterEngine *)engine
+{
+    return _engine;
+}
+
+- (void)atacheToViewController:(FlutterViewController *)vc
+{
+    if(_engine.viewController != vc){
+        _engine.viewController = vc;
+    }
+}
+
+- (void)detach
+{
+    if(_engine.viewController != _dummy){
+        _engine.viewController = _dummy;
+    }
+}
+
+- (void)prepareEngineIfNeeded
+{
+    [self detach];
+    [_dummy surfaceUpdated:YES];
+}
+
+@end
+

ios/Classes/1.0/FLBFlutterProvider.h

+/*
+ * The MIT License (MIT)
+ * 
+ * Copyright (c) 2019 Alibaba Group
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ * 
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#import <Foundation/Foundation.h>
+
+@class FlutterViewController;
+@class FlutterEngine;
+
+NS_ASSUME_NONNULL_BEGIN
+
+#define RELEASE_1_0 1
+
+@protocol FLBFlutterProvider <NSObject>
+
+@required
+- (FlutterEngine *)engine;
+- (void)atacheToViewController:(FlutterViewController *)vc;
+- (void)detach;
+- (void)pause;
+- (void)resume;
+- (void)inactive;
+
+- (void)prepareEngineIfNeeded;
+@end
+
+NS_ASSUME_NONNULL_END

ios/Classes/1.0/FLBFlutterViewContainer.h

+/*
+ * The MIT License (MIT)
+ * 
+ * Copyright (c) 2019 Alibaba Group
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ * 
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#import <UIKit/UIKit.h>
+#import <Flutter/Flutter.h>
+#import "FLBFlutterContainer.h"
+
+NS_ASSUME_NONNULL_BEGIN
+
+@interface FLBFlutterViewContainer  : FlutterViewController
+
+@property (nonatomic,copy,readonly) NSString *name;
+@property (nonatomic,strong,readonly) NSDictionary *params;
+@property (nonatomic,copy,readonly) NSString *uniqueIDString;
+
+/*
+ You must call this one time to set flutter page name
+ and params.
+ */
+- (void)setName:(NSString *)name params:(NSDictionary *)params;
+
+
+- (void)surfaceUpdated:(BOOL)appeared;
+
+@end
+
+NS_ASSUME_NONNULL_END

ios/Classes/1.0/FLBFlutterViewContainer.m

+/*
+ * The MIT License (MIT)
+ * 
+ * Copyright (c) 2019 Alibaba Group
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ * 
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#import "FLBFlutterViewContainer.h"
+#import "FLBFlutterApplication.h"
+#import "Service_NavigationService.h"
+#import "FlutterBoostConfig.h"
+#import "FLBFlutterViewContainerManager.h"
+
+#define FLUTTER_VIEW [FLBFlutterApplication sharedApplication].flutterViewController.view
+#define FLUTTER_VC [FLBFlutterApplication sharedApplication].flutterViewController
+#define FLUTTER_APP [FLBFlutterApplication sharedApplication]
+
+@interface FLBFlutterViewContainer  ()
+@property (nonatomic,copy,readwrite) NSString *name;
+@property (nonatomic,strong,readwrite) NSDictionary *params;
+@property (nonatomic,assign) long long identifier;
+@end
+
+@implementation FLBFlutterViewContainer
+
+- (instancetype)init
+{
+    [FLUTTER_APP.flutterProvider prepareEngineIfNeeded];
+    if(self = [super initWithEngine:FLUTTER_APP.flutterProvider.engine
+                            nibName:nil
+                             bundle:nil]){
+        [self _setup];
+    }
+    return self;
+}
+
+- (instancetype)initWithCoder:(NSCoder *)aDecoder{
+    if (self = [super initWithCoder: aDecoder]) {
+        NSAssert(NO, @"unsupported init method!");
+        [self _setup];
+    }
+    return self;
+}
+
+- (void)setName:(NSString *)name params:(NSDictionary *)params
+{
+    if(!_name && name){
+        _name = name;
+        _params = params;
+        [Service_NavigationService didInitPageContainer:^(NSNumber *r) {}
+                                               pageName:name
+                                                 params:params
+                                               uniqueId:[self uniqueIDString]];
+    }
+}
+
+
+static NSUInteger kInstanceCounter = 0;
+
++ (NSUInteger)instanceCounter
+{
+    return kInstanceCounter;
+}
+
++ (void)instanceCounterIncrease
+{
+    kInstanceCounter++;
+    if(kInstanceCounter == 1){
+//        [FLUTTER_APP resume];
+    }
+}
+
++ (void)instanceCounterDecrease
+{
+    kInstanceCounter--;
+    if([self.class instanceCounter] == 0){
+//        [[FLBFlutterApplication sharedApplication] pause];
+    }
+}
+
+- (NSString *)uniqueIDString
+{
+    return @(_identifier).stringValue;
+}
+
+- (void)_setup
+{
+    static long long sCounter = 0;
+    _identifier = sCounter++;
+    [self.class instanceCounterIncrease];
+}
+
+- (void)dealloc
+{
+    [self notifyWillDealloc];
+    [NSNotificationCenter.defaultCenter removeObserver:self];
+}
+
+- (void)notifyWillDealloc
+{
+    [Service_NavigationService willDeallocPageContainer:^(NSNumber *r) {}
+                                               pageName:_name params:_params
+                                               uniqueId:[self uniqueIDString]];
+
+    [[FLBFlutterApplication sharedApplication] removeViewController:self];
+    
+    [self.class instanceCounterDecrease];
+}
+
+- (void)viewDidLoad {
+    [super viewDidLoad];
+    self.view.backgroundColor = UIColor.whiteColor;
+}
+
+#pragma mark - ScreenShots
+- (BOOL)isFlutterViewAttatched
+{
+    return FLUTTER_VIEW.superview == self.view;
+}
+
+- (void)attatchFlutterEngine
+{
+    [FLUTTER_APP.flutterProvider prepareEngineIfNeeded];
+    [FLUTTER_APP.flutterProvider atacheToViewController:self];
+}
+
+- (void)detatchFlutterEngine
+{
+    [FLUTTER_APP.flutterProvider detach];
+}
+
+
+#pragma mark - Life circle methods
+
+- (void)viewDidLayoutSubviews
+{
+    [super viewDidLayoutSubviews];
+    [[FLBFlutterApplication sharedApplication] resume];
+}
+
+- (void)viewWillAppear:(BOOL)animated
+{
+    if([FLUTTER_APP contains:self]){
+        [self detatchFlutterEngine];
+    }else{
+        [self attatchFlutterEngine];
+    }
+  
+    [[FLBFlutterApplication sharedApplication] resume];
+    
+    [self surfaceUpdated:YES];
+    //For new page we should attach flutter view in view will appear
+    //for better performance.
+ 
+    [Service_NavigationService willShowPageContainer:^(NSNumber *result) {}
+                                            pageName:_name
+                                              params:_params
+                                            uniqueId:self.uniqueIDString];
+    //Save some first time page info.
+    if(![FlutterBoostConfig sharedInstance].fPagename){
+        [FlutterBoostConfig sharedInstance].fPagename = _name;
+        [FlutterBoostConfig sharedInstance].fPageId = self.uniqueIDString;
+        [FlutterBoostConfig sharedInstance].fParams = _params;
+    }
+    
+    [super viewWillAppear:animated];
+}
+
+- (void)viewDidAppear:(BOOL)animated
+{
+    [FLUTTER_APP addUniqueViewController:self];
+    
+    //Ensure flutter view is attached.
+    [self attatchFlutterEngine];
+    [self surfaceUpdated:YES];
+    [Service_NavigationService didShowPageContainer:^(NSNumber *result) {}
+                                           pageName:_name
+                                             params:_params
+                                           uniqueId:self.uniqueIDString];
+    
+    [super viewDidAppear:animated];
+}
+
+- (void)viewWillDisappear:(BOOL)animated
+{
+    [Service_NavigationService willDisappearPageContainer:^(NSNumber *result) {}
+                                                 pageName:_name
+                                                   params:_params
+                                                 uniqueId:self.uniqueIDString];
+    [super viewWillDisappear:animated];
+}
+
+
+- (void)viewDidDisappear:(BOOL)animated
+{
+    [self detatchFlutterEngine];
+    [Service_NavigationService didDisappearPageContainer:^(NSNumber *result) {}
+                                                pageName:_name
+                                                  params:_params
+                                                uniqueId:self.uniqueIDString];
+    [super viewDidDisappear:animated];
+}
+
+#pragma mark - FLBViewControllerResultHandler
+- (void)onRecievedResult:(NSDictionary *)resultData forKey:(NSString *)key
+{
+    [Service_NavigationService onNativePageResult:^(NSNumber *finished) {}
+                                         uniqueId:self.uniqueIDString
+                                              key:key
+                                       resultData:resultData
+                                           params:@{}];
+}
+
+- (void)installSplashScreenViewIfNecessary {
+    //Do nothing.
+}
+
+- (BOOL)loadDefaultSplashScreenView
+{
+    return NO;
+}
+
+
+@end

ios/Classes/1.5/FLBFactory.h → ios/Classes/1.5/FLB2Factory.h

@@ -26,7 +26,7 @@
 
 NS_ASSUME_NONNULL_BEGIN
 
-@interface FLBFactory : NSObject
+@interface FLB2Factory : NSObject
 
 @end
 

ios/Classes/1.5/FLBFactory.m → ios/Classes/1.5/FLB2Factory.m

@@ -5,8 +5,8 @@
 //  Created by Jidong Chen on 2019/6/11.
 //
 
-#import "FLBFactory.h"
+#import "FLB2Factory.h"
 
-@implementation FLBFactory
+@implementation FLB2Factory
 
 @end

ios/Classes/Boost/FLB2FlutterProvider.h

@@ -23,6 +23,7 @@
  */
 
 #import <Foundation/Foundation.h>
+#import "FLBFlutterProvider.h"
 
 @class FlutterViewController;
 @class FlutterEngine;
@@ -31,7 +32,7 @@ NS_ASSUME_NONNULL_BEGIN
 
 #define RELEASE_1_0 1
 
-@protocol FLB2FlutterProvider <NSObject>
+@protocol FLB2FlutterProvider <FLBFlutterProvider>
 
 @required
 - (FlutterEngine *)engine;

ios/Classes/Boost/FLB2Platform.h

@@ -23,10 +23,11 @@
  */
 
 #import <Foundation/Foundation.h>
+#import "FLBPlatform.h"
 
 NS_ASSUME_NONNULL_BEGIN
 
-@protocol FLB2Platform <NSObject>
+@protocol FLB2Platform <FLBPlatform>
 
 @optional
 //Whether to enable accessibility support. Default value is Yes.

ios/Classes/Boost/FLBAbstractFactory.m

-//
-//  FLBAbstractFactory.m
-//  flutter_boost
-//
-//  Created by Jidong Chen on 2019/6/11.
-//
-
-#import "FLBAbstractFactory.h"
-
-@implementation FLBAbstractFactory
-
-@end

ios/Classes/Boost/FLBFlutterAppDelegate.m

@@ -23,13 +23,13 @@
  */
 
 #import "FLBFlutterAppDelegate.h"
-#import "FLB2FlutterApplication.h"
+#import "FlutterBoostPlugin_private.h"
 
 @implementation FLBFlutterAppDelegate
 // Returns the key window's rootViewController, if it's a FlutterViewController.
 // Otherwise, returns nil.
 - (FlutterViewController*)rootFlutterViewController {
-    return FLB2FlutterApplication.sharedApplication.flutterViewController;
+    return FlutterBoostPlugin.sharedInstance.application.flutterViewController;
 }
 
 @end

ios/Classes/Boost/FLBPlatform.h

+/*
+ * The MIT License (MIT)
+ * 
+ * Copyright (c) 2019 Alibaba Group
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ * 
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#import <Foundation/Foundation.h>
+
+NS_ASSUME_NONNULL_BEGIN
+
+@protocol FLBPlatform <NSObject>
+
+@optional
+//Whether to enable accessibility support. Default value is Yes.
+- (BOOL)accessibilityEnable;
+
+@required
+- (void)openPage:(NSString *)name
+          params:(NSDictionary *)params
+        animated:(BOOL)animated
+      completion:(void (^)(BOOL finished))completion;
+
+- (void)closePage:(NSString *)uid
+         animated:(BOOL)animated
+           params:(NSDictionary *)params
+       completion:(void (^)(BOOL finished))completion;
+@end
+
+NS_ASSUME_NONNULL_END

ios/Classes/Boost/FlutterBoost.h

@@ -27,8 +27,8 @@
 
 #import "FlutterBoostPlugin.h"
 #import "FLBFlutterAppDelegate.h"
-//#import "FLBFlutterViewContainer.h"
-//#import "FLBPlatform.h"
+#import "FLBFlutterViewContainer.h"
+#import "FLBPlatform.h"
 
 #import "FLB2FlutterViewContainer.h"
 #import "FLB2Platform.h"

ios/Classes/Boost/FlutterBoostPlugin.m

@@ -23,7 +23,6 @@
  */
 
 #import "FlutterBoostPlugin.h"
-#import "FLB2FlutterApplication.h"
 #import "FLBResultMediator.h"
 #import "FlutterBoostPlugin_private.h"
 
@@ -72,18 +71,18 @@
                                            FlutterPluginRegistry> engine))callback;
 {
     //TODO:
-    [FLB2FlutterApplication.sharedApplication startFlutterWithPlatform:platform
-                                                              onStart:callback];
+    [self.application startFlutterWithPlatform:platform
+                                        onStart:callback];
 }
 
 - (BOOL)isRunning
 {
-    return [FLB2FlutterApplication.sharedApplication isRunning];
+    return [self.application isRunning];
 }
 
 - (FlutterViewController *)currentViewController
 {
-    return [[FLB2FlutterApplication sharedApplication] flutterViewController];
+    return [self.application flutterViewController];
 }
 
 - (void)openPage:(NSString *)name

ios/Classes/Boost/FlutterBoostPlugin_private.h

@@ -25,12 +25,14 @@
 
 #import "FLBFlutterApplicationInterface.h"
 #import "FLBResultMediator.h"
+#import "FLBAbstractFactory.h"
 
 @interface FlutterBoostPlugin()
 
 - (id<FLBFlutterApplicationInterface>)application;
 
 @property (nonatomic,strong) FLBResultMediator *resultMediator;
+@property (nonatomic,strong) id<FLBAbstractFactory> factory;
 
 @property (nonatomic,copy) NSString *fPageId;
 @property (nonatomic,copy) NSString *fPagename;