[CocoaHeads Tricity] Do not reinvent the wheel
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The document provides an overview of popular Cocoa libraries and components for iOS development, emphasizing the benefits of using existing libraries such as CocoaPods for easier organization and integration. Key libraries discussed include networking libraries, logging frameworks, and UI components, each with their specific features and use cases. Additionally, it highlights when to opt for ready-made components to save time and the importance of a version-controlled environment using a Gemfile.
[CocoaHeads Tricity] Do not reinvent the wheel
- 1. Do not reinvent the wheel Make use of Cocoa libraries and ready components Mateusz Klimczak
- 2. Agenda ! Overview of the most popular Cocoa libraries and ready components ! When to use ready components? ! CocoaPods – an easy way to organise your components ! Let’s create our own Pod ! Use Gemfile to control the CocoaPods version ! Discussion
- 3. ! Probably the most popular iOS library ! Main features: ! Encapsulates the common patterns of communicating with a web application over HTPP: GET, POST, PUT, DELETE, etc. ! Easy request serialisation ! Since 2.0 version support for caching downloaded images (both in-memory and disk caching) ! Network reachability manager
- 4. ReactiveCocoa ! Objective-C framework inspired by Functional Reactive Programming ! Provides APIs for composing and transforming streams of values ! Instead of using mutable variables RAC provides signals that capture present and future values ! Widely discussed on last meeting
- 5. RAC – usage example
- 6. ! Amazing tool for crash reporting with support for both iOS and Android ! Provides detailed statistics about crashes ! Recently integrated into Twitter’s Fabric.IO – mobile platform for mobile analytics, app distribution and reporting ! Allows integration with Trello&BitBucket ! Live example!
- 7. CocoaLumberjack ! Logging framework for Mac and iOS ! Faster than NSLog ! Main features: ! Send logs over the network ! Use multiple loggers to log simultaneously to many places (file, console, database) ! Define different log levels per logger (e.g. log verbose to console, but briefly to log server)
- 8. MagicalRecord ! Inspired by RoR Active Record Fetching ! Active Record is an approach to accessing data in database ! Database table is wrapped into a class ! Object instance is tied to a single row in the database table ! The wrapper class implements properties for each column in the table ! Allows clear, simple, one-line fetches from CoreData
- 9. FXKeychain ! Lightweight wrapper around the Apple keychain API ! Exposes the commonly used functionality while hiding complexity of underlying APIs
- 10. RHAddressBook ! Library for interfacing with the iOS AddressBook ! All contact attributes on various objects (Person, Group) are exposed as properties – no more dealing with CF methods
- 11. TPKeyboardAvoiding ! Universal solution for moving text fields out of the keyboard in iOS ! Uses UIScrollView/UITableView subclasses that handles everything for you
- 12. PaymentKit ! Library providing utility methods for dealing with credit card payments: ! Credit card number validation&formatting ! Expiration validation ! Credit card type checking ! Credit card providers icons fetching ! Ready to use UI components for to input card data
- 13. card.io ! Provides ready to use credit card scanning
- 14. XMLDictionary ! Library for parsing and generating XMLs ! Allows parsing XML received from server to NSDictionary and vice versa
- 15. TSMessages ! Provides an easy to use class to show little notification views on the top of the screen
- 16. MSDynamicsDrawerViewController ! Container view controller that manages the presentation of a single view controller overlaid over drawer view controllers ! Supports swipe to open and close the drawer
- 17. MBProgressHUD ! Customisable, easy to use progress HUD with an indicator while work is being done in background thread
- 18. JSQMessagesViewController ! Messages UI library for iOS ! Allows displaying media, map location and more
- 19. And many, many more… ! Kiwi ! Specta ! Masonry ! PureLayout ! GPUImage ! JSONKit ! Facebook/Twitter/Google ! …
- 20. When to use ready components? ! We want to save some time (it’s not always worth it – to be continued) ! Library/component is still developed and preferably have more than 1 contributor ! We don’t need a full control of the code ! We don’t need to provide a high-level security ! If it is a UI component, we don’t have to create highly customised interface
- 21. ! Dependency manager for Swift and Objective-C project ! According to the http://rubygems.org currently there are over 1.1 million downloads of CocoaPods (it doesn’t mean that there are that many users) ! http://cocoapods.org sites are generating 180k visits per month ! You can try the demo project of the Pod without integrating it into your project
- 22. ! It’s easy to get started ! Installation: ! gem install cocoapods ! Create Podfile ! pod init ! Add pods references to your Podfile ! Run command: ! pod install ! Use .xcworkspace instead of .xcodeproj
- 23. ! Life example – let’s create our own Pod! ! Instructions: http://guides.cocoapods.org/making/ making-a-cocoapod.html
- 24. Gemfile ! Use Gemfile to keep the same version of CocoaPods for everyone in team ! Gemfile should specify the required version of CocoaPods ! Install pods using: ! bundle exec pod install
- 25. Discussion! ! What libraries do you most often use? ! When do you prefer to write your own code? ! Your experiences!