iOS-RxSwift基础控件的使用、RxSwif-Tableview的使用-Demo

<p align="center"> <img src="assets/RxSwift_Logo.png" width="35%" alt="RxSwift Logo" /> <br /> <a href="https://actions-badge.atrox.dev/ReactiveX/RxSwift/goto" target="_blank"><img src="https://github.com/ReactiveX/RxSwift/workflows/RxSwift/badge.svg?branch=main" alt="Build Status" /></a> <img src="https://img.shields.io/badge/platforms-iOS%20%7C%20macOS%20%7C%20tvOS%20%7C%20watchOS%20%7C%20Linux-333333.svg" alt="Supported Platforms: iOS, macOS, tvOS, watchOS & Linux" /> <br /> <a href="https://cocoapods.org/pods/RxSwift" alt="RxSwift on CocoaPods" title="RxSwift on CocoaPods"><img src="https://img.shields.io/cocoapods/v/RxSwift.svg" /></a> <a href="https://github.com/Carthage/Carthage" alt="RxSwift on Carthage" title="RxSwift on Carthage"><img src="https://img.shields.io/badge/Carthage-compatible-4BC51D.svg?style=flat" /></a> <a href="https://github.com/apple/swift-package-manager" alt="RxSwift on Swift Package Manager" title="RxSwift on Swift Package Manager"><img src="https://img.shields.io/badge/Swift%20Package%20Manager-compatible-brightgreen.svg" /></a> </p> Rx is a [generic abstraction of computation](https://youtu.be/looJcaeboBY) expressed through `Observable<Element>` interface, which lets you broadcast and subscribe to values and other events from an `Observable` stream. RxSwift is the Swift-specific implementation of the [Reactive Extensions](http://reactivex.io) standard. <p align="center"><img src="assets/example.png" width="55%" alt="RxSwift Observable Example of a price constantly changing and updating the app's UI" /></p> While this version aims to stay true to the original spirit and naming conventions of Rx, this projects also aims to provide a true Swift-first API for Rx APIs. Cross platform documentation can be found on [ReactiveX.io](http://reactivex.io/). Like other Rx implementation, RxSwift's intention is to enable easy composition of asynchronous operations and streams of data in the form of `Observable` objects and a suite of methods to transform and compose these pieces of asynchronous work. KVO observation, async operations, UI Events and other streams of data are all unified under [abstraction of sequence](Documentation/GettingStarted.md#observables-aka-sequences). This is the reason why Rx is so simple, elegant and powerful. ## I came here because I want to ... ###### ... understand * [why use rx?](Documentation/Why.md) * [the basics, getting started with RxSwift](Documentation/GettingStarted.md) * [traits](Documentation/Traits.md) - what are `Single`, `Completable`, `Maybe`, `Driver`, and `ControlProperty` ... and why do they exist? * [testing](Documentation/UnitTests.md) * [tips and common errors](Documentation/Tips.md) * [debugging](Documentation/GettingStarted.md#debugging) * [the math behind Rx](Documentation/MathBehindRx.md) * [what are hot and cold observable sequences?](Documentation/HotAndColdObservables.md) ###### ... install * Integrate RxSwift/RxCocoa with my app. [Installation Guide](#installation) ###### ... hack around * with the example app. [Running Example App](Documentation/ExampleApp.md) * with operators in playgrounds. [Playgrounds](Documentation/Playgrounds.md) ###### ... interact * All of this is great, but it would be nice to talk with other people using RxSwift and exchange experiences. <br />[Join Slack Channel](http://slack.rxswift.org) * Report a problem using the library. [Open an Issue With Bug Template](.github/ISSUE_TEMPLATE.md) * Request a new feature. [Open an Issue With Feature Request Template](Documentation/NewFeatureRequestTemplate.md) * Help out [Check out contribution guide](CONTRIBUTING.md) ###### ... compare * [with Combine and ReactiveSwift](Documentation/ComparisonWithOtherLibraries.md). ###### ... understand the structure RxSwift is as compositional as the asynchronous work it drives. The core unit is RxSwift itself, while other dependencies can be added for UI Work, testing, and more. It comprises five separate components depending on each other in the following way: ```none ┌──────────────┐ ┌──────────────┐ │ RxCocoa ├────▶ RxRelay │ └───────┬──────┘ └──────┬───────┘ │ │ ┌───────▼──────────────────▼───────┐ │ RxSwift │ └───────▲──────────────────▲───────┘ │ │ ┌───────┴──────┐ ┌──────┴───────┐ │ RxTest │ │ RxBlocking │ └──────────────┘ └──────────────┘ ``` * **RxSwift**: The core of RxSwift, providing the Rx standard as (mostly) defined by [ReactiveX](https://reactivex.io). It has no other dependencies. * **RxCocoa**: Provides Cocoa-specific capabilities for general iOS/macOS/watchOS & tvOS app development, such as Shared Sequences, Traits, and much more. It depends on both `RxSwift` and `RxRelay`. * **RxRelay**: Provides `PublishRelay`, `BehaviorRelay` and `ReplayRelay`, three [simple wrappers around Subjects](https://github.com/ReactiveX/RxSwift/blob/main/Documentation/Subjects.md#relays). It depends on `RxSwift`. * **RxTest** and **RxBlocking**: Provides testing capabilities for Rx-based systems. It depends on `RxSwift`. ## Usage <table> <tr> <th width="30%">Here's an example</th> <th width="30%">In Action</th> </tr> <tr> <td>Define search for GitHub repositories ...</td> <th rowspan="9"><img src="https://raw.githubusercontent.com/kzaher/rxswiftcontent/master/GithubSearch.gif"></th> </tr> <tr> <td><div class="highlight highlight-source-swift"><pre> let searchResults = searchBar.rx.text.orEmpty .throttle(.milliseconds(300), scheduler: MainScheduler.instance) .distinctUntilChanged() .flatMapLatest { query -> Observable&lt;[Repository]&gt; in if query.isEmpty { return .just([]) } return searchGitHub(query) .catchAndReturn([]) } .observe(on: MainScheduler.instance)</pre></div></td> </tr> <tr> <td>... then bind the results to your tableview</td> </tr> <tr> <td width="30%"><div class="highlight highlight-source-swift"><pre> searchResults .bind(to: tableView.rx.items(cellIdentifier: "Cell")) { (index, repository: Repository, cell) in cell.textLabel?.text = repository.name cell.detailTextLabel?.text = repository.url } .disposed(by: disposeBag)</pre></div></td> </tr> </table> ## Requirements * Xcode 12.x * Swift 5.x For Xcode 11 and below, [use RxSwift 5.x](https://github.com/ReactiveX/RxSwift/releases/tag/5.1.1). ## Installation RxSwift doesn't contain any external dependencies. These are currently the supported installation options: ### Manual Open Rx.xcworkspace, choose `RxExample` and hit run. This method will build everything and run the sample app ### [CocoaPods](https://guides.cocoapods.org/using/using-cocoapods.html) ```ruby # Podfile use_frameworks! target 'YOUR_TARGET_NAME' do pod 'RxSwift', '6.5.0' pod 'RxCocoa', '6.5.0' end # RxTest and RxBlocking make the most sense in the context of unit/integration tests target 'YOUR_TESTING_TARGET' do pod 'RxBlocking', '6.5.0' pod 'RxTest', '6.5.0' end ``` Replace `YOUR_TARGET_NAME` and then, in the `Podfile` directory, type: ```bash $ pod install ``` ### XCFrameworks Each release starting with RxSwift 6 includes `*.xcframework` framework binaries. Simply drag the needed framework binaries to your **Frameworks, Libraries, and Embedded Content** section under your target's **General** tab. > **Note**: If you're using `RxCocoa`, be sure to also drag **RxCocoaRuntime.xcframe