/* * 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 "FLBFlutterContainerManager.h" @interface FLBFlutterContainerManager() @property (nonatomic,strong) NSMutableArray *idStk; @property (nonatomic,strong) NSMutableDictionary *existedID; @end @implementation FLBFlutterContainerManager - (instancetype)init { if (self = [super init]) { _idStk= [NSMutableArray new]; _existedID = [NSMutableDictionary dictionary]; } return self; } - (BOOL)contains:(id<FLBFlutterContainer>)vc { if (vc) { return _existedID[vc.uniqueIDString]?YES:NO; } return NO; } - (void)addUnique:(id<FLBFlutterContainer>)vc { if (vc) { if(!_existedID[vc.uniqueIDString]){ [_idStk addObject:vc.uniqueIDString]; } _existedID[vc.uniqueIDString] = vc.uniqueIDString; } } - (void)remove:(id<FLBFlutterContainer>)vc { if (vc) { [_existedID removeObjectForKey:vc.uniqueIDString]; [_idStk removeObject:vc.uniqueIDString]; } } - (NSString *)peak { return _idStk.lastObject; } @end