Sample Code of the App Architecture Book

Overview

App Architecture

iOS Application Design Patterns in Swift

Welcome to the repository of the App Architecture book!

This repository hosts all sample code from the book: the Recordings sample app in seven different variants, plus a project from the accompanying videos that implements eight application design patterns within a single app.

Feedback

We'd love to hear your feedback. File an issue, send us an email, or send us a tweet.

Q&A

During the early-access period of this book we've recorded weekly Q&A sessions.

Enjoy!

Florian, Matt and Chris

Comments
  • One-App-Eight-Architectures mvc extension question

    One-App-Eight-Architectures mvc extension question

    I'm trying to understand why MultiViewController was extended for the MVC version. The function mvcDidLoad() and the action mvcButtonPressed() are typically just included in the ViewController class. I looked through the accompanying book and some of the videos and didn't see any mention of extending the ViewController under the MVC pattern. I also didn't see that with the Recordings application. Is there some benefit, structural or clarity to this?

    opened by BMinas 2
  • Violating basic principles in the

    Violating basic principles in the "One-App-Eight-Architectures" code

    In "One-App-Eight-Architectures" project you have created a model directly in a view controller. I understand that for simplification you have chosen this path. But for example in MVVM the view should not know about model. I think that this can be confusing for some people. I know - it's simple example app. But from the whole point of view - this is a book about app architectures so why to violate their basic principles and dependencies and bend them over when you try to teach them?

    opened by tomassliz 1
  • [Controller-Owned Networking] App crashes on inserting and deleting recordings

    [Controller-Owned Networking] App crashes on inserting and deleting recordings

    Fix: In FolderViewController folder property is a struct, so in methods deleteItem(item:) and insert(item:) changing the folder property will trigger didSet block with tableView.reloadData().

    Therefore, tableView.deleteRows(at: [IndexPath(row: index, section: 0)], with: .automatic) and self.tableView.insertRows(at: [IndexPath(row: self.folder.contents.endIndex-1, section: 0)], with: .automatic) are redundand and provoke a crash.
    Deleting these lines should fix it

    opened by gloomikon 0
  • MVC 模式下setName的时候更新有误

    MVC 模式下setName的时候更新有误

    FolderViewController.swift 中 if let changeReason = userInfo[Item.changeReasonKey] as? String { let oldValue = userInfo[Item.newValueKey] let newValue = userInfo[Item.oldValueKey] 应改为: if let changeReason = userInfo[Item.changeReasonKey] as? String { let oldValue = userInfo[Item.newValueKey] let newValue = userInfo[Item.oldValueKey]

    opened by tekizhong 0
  • MVVM-C example fails assertion, crashes on launch

    MVVM-C example fails assertion, crashes on launch

    The problem seems to be on line 20 of FolderViewController:

    viewModel.folderContents.bind(to: tableView.rx.items(dataSource: dataSource)).disposed(by: disposeBag)
    
    

    I'm getting the following:

    2019-05-23 12:20:09.318611-0300 Recordings[15921:6162304] Warning: Unable to create restoration in progress marker file
    Assertion failed: This is a feature to warn you that there is already a delegate (or data source) set somewhere previously. The action you are trying to perform will clear that delegate (data source) and that means that some of your features that depend on that delegate (data source) being set will likely stop working.
    If you are ok with this, try to set delegate (data source) to `nil` in front of this operation.
     This is the source object value: <UITableView: 0x7fa7e805c200; frame = (0 0; 375 812); clipsToBounds = YES; autoresize = W+H; gestureRecognizers = <NSArray: 0x60800005bdb0>; layer = <CALayer: 0x60000023a040>; contentOffset: {0, 0}; contentSize: {0, 0}; adjustedContentInset: {0, 0, 0, 0}>
     This is the original delegate (data source) value: <Recordings.FolderViewController: 0x7fa7e7d1a890>
    Hint: Maybe delegate was already set in xib or storyboard and now it's being overwritten in code.
    : file /Users/jeff/Developer/app-architecture/Recordings-MVVM-C/Pods/RxCocoa/RxCocoa/Common/DelegateProxyType.swift, line 222
    2019-05-23 12:20:15.881476-0300 Recordings[15921:6162304] Assertion failed: This is a feature to warn you that there is already a delegate (or data source) set somewhere previously. The action you are trying to perform will clear that delegate (data source) and that means that some of your features that depend on that delegate (data source) being set will likely stop working.
    

    This seems to happen in both Xcode 9.4.1 and 10.2 using RxSwift 4.0.0 and RxDataSources 3.0.2. Setting the tableView's delegate and dataSource to nil after super.viewDidLoad() fixes the issue for me.

    opened by jefflovejapan 2
  • RxSwift Projects Compiling Issues

    RxSwift Projects Compiling Issues

    I'm following the steps in the README to install RxSwift via Carthage, but running into complier issues. Specifically, No such module 'RxDataSources'.

    The only error I get when running carthage update --platform iOS is a build failure from xcodebuild, but I'm guessing is the same issue.

    Seems like everything is installed correctly.

    *** Fetching RxSwift
    *** Checking out RxDataSources at "3.0.2"
    *** Checking out RxSwift at "4.0.0"
    *** xcodebuild output can be found in /var/folders/vn/djlphdns25qcvv_53qqwcs9c000bsw/T/carthage-xcodebuild.CSrNEV.log
    *** Skipped downloading RxSwift.framework binary due to the error:
    	"API rate limit exceeded for 216.52.20.6. (But here's the good news: Authenticated requests get a higher rate limit. Check out the documentation for more details.)"
    *** Skipped downloading RxDataSources.framework binary due to the error:
    	"API rate limit exceeded for 216.52.20.6. (But here's the good news: Authenticated requests get a higher rate limit. Check out the documentation for more details.)"
    *** Building scheme "RxBlocking-iOS" in Rx.xcworkspace
    *** Building scheme "RxCocoa-iOS" in Rx.xcworkspace
    

    Any ideas? Anyone else run into this? I'd love to be able to build so I can play around and better grok reactive programming.

    opened by derrickshowers 1
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