ReusableKit
Generic reusables for Cocoa. Currently supports UITableView and UICollectionView.
At a Glance
Before 🤢
collectionView.register(UserCell.self, forCellWithReuseIdentifier: "userCell")
collectionView.dequeueReusableCell(withReuseIdentifier: "userCell", for: indexPath) as! UserCell- A hard-coded string identifier can cause a human error.
- A force downcasting should be avoided.
After 😊
let reusableUserCell = ReusableCell<UserCell>()
collectionView.register(reusableUserCell)
collectionView.dequeue(reusableUserCell) // UserCell- A string identifier is generated automatically using UUID and stored in the struct.
- A generic can ensure the type of the dequeued cell statically.
Example Usage
It is recommended to define reusable types as a static constants in an enum or a struct.
UITableView
// 1. define
enum Reusable {
static let headerView = ReusableCell<SectionHeaderView>()
static let userCell = ReusableCell<UserCell>()
}
// 2. register
tableView.register(Reusable.headerView)
tableView.register(Reusable.userCell)
// 3. dequeue
tableView.dequeue(Reusable.headerView, for: indexPath)
tableView.dequeue(Reusable.userCell, for: indexPath)UICollectionView
// 1. define
enum Reusable {
static let headerView = ReusableCell<SectionHeaderView>()
static let photoCell = ReusableCell<PhotoCell>()
}
// 2. register
collection.register(Reusable.headerView, kind: .header)
collection.register(Reusable.photoCell)
// 3. dequeue
collection.dequeue(Reusable.headerView, kind: .header, for: indexPath)
collection.dequeue(Reusable.photoCell, for: indexPath)RxSwift Extension
ReusableKit supports a RxSwift extension.
users // Observable<[String]>
.bind(to: collectionView.rx.items(Reusable.userCell)) { i, user, cell in
cell.user = user
}Contrubiting
Pull requests are welcomed
In order to create Xcode project, run:
$ swift package generate-xcodeprojInstallation
-
For iOS 9+ projects with CocoaPods:
pod 'ReusableKit' pod 'ReusableKit/RxSwift' # with RxSwift extension
License
ReusableKit is under MIT license. See the LICENSE file for more info.