计算机应用技术网站开发方向,大良手机网站建设,手机上怎么设计广告图片,php自己写框架做网站RAC(ReactiveCocoa)使用方法(一)RAC(ReactiveCocoa)使用方法(二) 上篇文章:RAC(ReactiveCocoa)使用方法(一) 中主要介绍了一些RAC中常见类的用法#xff0c;这篇文章主要总结日常开发中结合一些UI控件的用法。 RAC给常见的很多UI类拓展了用法#xff0c;使得开发变得越来越简…RAC(ReactiveCocoa)使用方法(一)RAC(ReactiveCocoa)使用方法(二) 上篇文章:RAC(ReactiveCocoa)使用方法(一) 中主要介绍了一些RAC中常见类的用法这篇文章主要总结日常开发中结合一些UI控件的用法。 RAC给常见的很多UI类拓展了用法使得开发变得越来越简单减少了很多不必要的代理和Target代码RAC内部已经处理好了这些事件。 --- 网络请求 贴上核心代码具体代码见Github; //
// ViewModel.m
//
//
// Created by soliloquy on 2017/11/28.
////豆瓣电影API
#define url https://api.douban.com/v2/movie/in_theaters?apikey0b2bdeda43b5688921839c8ecb20399bcity%E5%8C%97%E4%BA%ACstart0count100clientudid#import ViewModel.h
#import AFNetworking/AFNetworking.h
#import MJExtension/MJExtension.h
#import Model.himplementation ViewModel
- (instancetype)init
{self [super init];if (self) {__weak typeof (self)weakSelf self;self.command [[RACCommand alloc]initWithSignalBlock:^RACSignal *(id input) {return [RACSignal createSignal:^RACDisposable *(idRACSubscriber subscriber) {[weakSelf fetchData:^(NSArray *arr) {[subscriber sendNext:arr];[subscriber sendCompleted];} failure:^(NSError *error) {[subscriber sendError:error];}];return nil;}];}];}return self;
}- (void)fetchData:(void(^)(NSArray *arr))successBlock failure:(void(^)(NSError *error))failure{AFHTTPSessionManager *manager [AFHTTPSessionManager manager];manager.requestSerializer [AFJSONRequestSerializer serializer];manager.responseSerializer [AFJSONResponseSerializer serializer];[manager GET:url parameters:nil progress:nil success:^(NSURLSessionDataTask * _Nonnull task, id _Nullable responseObject) {NSArray *arr [Model mj_objectArrayWithKeyValuesArray:responseObject[subjects]];/** 方法一block回调出去if (self.dataSourceBlock) {self.dataSourceBlock(arr);}*//**方法二 ReactiveCocoa*/if (successBlock) {successBlock(arr);}} failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {if (failure) {failure(error);}}];
}end- (void)viewDidLoad {[super viewDidLoad];[self bindViewModel];
}- (void)bindViewModel {/** RAC */weakify(self)[self.viewModel.command.executionSignals.switchToLatest subscribeNext:^(NSArray *dataSource) {strongify(self);self.dataSource dataSource;NSLog(%,dataSource);}];// 返回错误[self.viewModel.command.errors subscribeNext:^(NSError *_Nullable x) {NSLog(-- error : %, x.description);}];//执行command[self.viewModel.command execute:nil];
} 代理 UIAlertView *alertView [[UIAlertView alloc] initWithTitle:标题 message:123456 delegate:self cancelButtonTitle:cancel otherButtonTitles:other, nil];
[[self rac_signalForSelector:selector(alertView:clickedButtonAtIndex:) fromProtocol:protocol(UIAlertViewDelegate)] subscribeNext:^(RACTuple *tuple) {NSLog(%,tuple.first);NSLog(%,tuple.second);NSLog(%,tuple.third);
}];
[alertView show]; 通知 发送通知NSMutableArray *dataArray [[NSMutableArray alloc] initWithObjects:1, 2, 3, nil];
[[NSNotificationCenter defaultCenter] postNotificationName:notiName object:dataArray]; 接收通知[[[NSNotificationCenter defaultCenter] rac_addObserverForName:notiName object:nil] subscribeNext:^(NSNotification *notification) {NSLog(%, notification.name);NSLog(%, notification.object);
}]; KVO UIScrollView *scrolView [[UIScrollView alloc] initWithFrame:CGRectMake(0, 0, 200, 200)];scrolView.contentSize CGSizeMake(200, 800);scrolView.backgroundColor [UIColor redColor];[self.view addSubview:scrolView];[RACObserve(scrolView, contentOffset) subscribeNext:^(id x) {NSLog(contentOffset: %,x);}]; Target-Action UIButton[[self.button rac_signalForControlEvents:UIControlEventTouchUpInside] subscribeNext:^(id x) {NSLog(x:%, x);}]; UITextField[self.tf.rac_textSignal subscribeNext:^(id x) {NSLog(x:%, x);self.label.text x;}]; [[self.tf.rac_textSignal map:^id(id value) {return [UIColor redColor];}] subscribeNext:^(id x) {
// NSLog(x:%, x);}]; UIViewUITapGestureRecognizer *tap [[UITapGestureRecognizer alloc]init];[tap.rac_gestureSignal subscribeNext:^(id x) {NSLog(x:%, x);self.redView.backgroundColor [UIColor yellowColor];}];[self.redView addGestureRecognizer: tap]; 详情见github. 转载于:https://www.cnblogs.com/soliloquy/p/7920556.html
