/* * 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 "BoostMessageChannel.h" #import "FLBFlutterContainerManager.h" #import "FlutterBoostPlugin_private.h" #import <objc/message.h> #import <objc/runtime.h> #define FLUTTER_APP [FlutterBoostPlugin sharedInstance].application #define FLUTTER_VIEW FLUTTER_APP.flutterViewController.view #define FLUTTER_VC FLUTTER_APP.flutterViewController @interface FlutterViewController (bridgeToviewDidDisappear) - (void)flushOngoingTouches; - (void)bridge_viewDidDisappear:(BOOL)animated; - (void)bridge_viewWillAppear:(BOOL)animated; @end #pragma clang diagnostic push #pragma clang diagnostic ignored "-Wincomplete-implementation" @implementation FlutterViewController (bridgeToviewDidDisappear) - (void)bridge_viewDidDisappear:(BOOL)animated{ // TRACE_EVENT0("flutter", "viewDidDisappear"); [self flushOngoingTouches]; [super viewDidDisappear:animated]; } - (void)bridge_viewWillAppear:(BOOL)animated{ // TRACE_EVENT0("flutter", "viewWillAppear"); // if (_engineNeedsLaunch) { // [_engine.get() launchEngine:nil libraryURI:nil]; // [_engine.get() setViewController:self]; // _engineNeedsLaunch = NO; // } [FLUTTER_APP inactive]; [super viewWillAppear:animated]; } @end #pragma pop @interface FLBFlutterViewContainer () @property (nonatomic,strong,readwrite) NSDictionary *params; @property (nonatomic,assign) long long identifier; @property (nonatomic, copy) NSString *flbNibName; @property (nonatomic, strong) NSBundle *flbNibBundle; @end #pragma clang diagnostic push #pragma clang diagnostic ignored "-Wincomplete-implementation" @implementation FLBFlutterViewContainer - (instancetype)init { [FLUTTER_APP.flutterProvider prepareEngineIfNeeded]; if(self = [super initWithEngine:FLUTTER_APP.flutterProvider.engine nibName:_flbNibName bundle:_flbNibBundle]){ //NOTES:在present页面时,默认是全屏,如此可以触发底层VC的页面事件。否则不会触发而导致异常 self.modalPresentationStyle = UIModalPresentationFullScreen; [self _setup]; } return self; } - (instancetype)initWithProject:(FlutterDartProject*)projectOrNil nibName:(NSString*)nibNameOrNil bundle:(NSBundle*)nibBundleOrNil { NSAssert(NO, @"unsupported init method!"); return nil; } #pragma clang diagnostic push #pragma clang diagnostic ignored "-Wobjc-designated-initializers" - (instancetype)initWithCoder:(NSCoder *)aDecoder{ if (self = [super initWithCoder: aDecoder]) { NSAssert(NO, @"unsupported init method!"); [self _setup]; } return self; } #pragma pop - (instancetype)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil { _flbNibName = nibNameOrNil; _flbNibBundle = nibBundleOrNil; return [self init]; } - (void)setName:(NSString *)name params:(NSDictionary *)params { if(!_name && name){ _name = name; _params = params; [BoostMessageChannel 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){ [FLUTTER_APP 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 { [BoostMessageChannel willDeallocPageContainer:^(NSNumber *r) {} pageName:_name params:_params uniqueId:[self uniqueIDString]]; [FLUTTER_APP 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 atacheToViewController:self]; } - (void)detatchFlutterEngine { [FLUTTER_APP.flutterProvider detach]; } #pragma mark - Life circle methods - (void)viewDidLayoutSubviews { [super viewDidLayoutSubviews]; [FLUTTER_APP resume]; } - (void)viewWillAppear:(BOOL)animated { //For new page we should attach flutter view in view will appear //for better performance. [self attatchFlutterEngine]; [BoostMessageChannel willShowPageContainer:^(NSNumber *result) {} pageName:_name params:_params uniqueId:self.uniqueIDString]; //Save some first time page info. [FlutterBoostPlugin sharedInstance].fPagename = _name; [FlutterBoostPlugin sharedInstance].fPageId = self.uniqueIDString; [FlutterBoostPlugin sharedInstance].fParams = _params; [super bridge_viewWillAppear:animated]; [self.view setNeedsLayout];//TODO:通过param来设定 } - (void)viewDidAppear:(BOOL)animated { [FLUTTER_APP addUniqueViewController:self]; //Ensure flutter view is attached. [self attatchFlutterEngine]; [BoostMessageChannel didShowPageContainer:^(NSNumber *result) {} pageName:_name params:_params uniqueId:self.uniqueIDString]; //NOTES:务必在show之后再update,否则有闪烁; 或导致侧滑返回时上一个页面会和top页面内容一样 [self surfaceUpdated:YES]; [super viewDidAppear:animated]; } - (void)viewWillDisappear:(BOOL)animated { [BoostMessageChannel willDisappearPageContainer:^(NSNumber *result) {} pageName:_name params:_params uniqueId:self.uniqueIDString]; [[[UIApplication sharedApplication] keyWindow] endEditing:YES]; [super viewWillDisappear:animated]; } - (void)viewDidDisappear:(BOOL)animated { [BoostMessageChannel didDisappearPageContainer:^(NSNumber *result) {} pageName:_name params:_params uniqueId:self.uniqueIDString]; [self bridge_viewDidDisappear:animated]; } - (void)installSplashScreenViewIfNecessary { //Do nothing. } - (BOOL)loadDefaultSplashScreenView { return NO; } @end #pragma clang diagnostic pop