ModuleServices
Requirements
Is valid for iOS 12 and higher. Requires Swift 5.5 and XCode 11.0 or higher.
Installation
Swift Package Manager
You can install CombinationGenerator via Swift Package Manager by adding the following line to your Package.swift:
import PackageDescription
let package = Package(
[...]
dependencies: [
.Package(name: "ModuleServices", url: "https://github.com/cosmicfools/ModuleServices.git", .branch("master"))
]
)Cocoapods
You can install CombinationGenerator via Cocoapods by adding the following line to your Podfile:
pod 'ModuleServices'How to use it
ModuleServices basically is a pack of tools that is helping you to develop faster. This libabry is so useful for those UIViewControllers that are based in UITableView. The main concept in this libary is, a Module means a Section in a UITableView, so there is a subclass of UIViewController called ModulesViewController that manage all modules.
A Module is a like and mini UIViewController, should be able to work it self.
Basically a ModulesViewController has an array of TableSectionModules.
Sometimes an example is easier to understand than 1000 words.. so, we have an additionaly repository full of examples: Module-examples
1. Create a Module
You need to create a subclass of TableSectionModule
class FirstSectionModule: TableSectionModule {}2. Override the needed methods in the Module
There are a lot of methods that could be override. The most usuals are:
- Registration of
UITableViewCell/UITableViewHeaderFooterViewwithClass/Nib
override func registerClassForCells() -> [AnyClass]
override func registerClassForHeadersFooters() -> [AnyClass]
override func registerNibsForCells() -> [AnyClass]
override func registerNibsForHeadersFooters() -> [AnyClass] - Creation of rows, this is the like the data source of the
UITableView
override func createRows()- Dequeue and configure of the
UITableViewCell
override func tableView(_ tableView: UITableView, cellForRowAtIndexPath indexPath: IndexPath) -> UITableViewCell-
Rest of method that could be override You can override basically the same method that the
UITableViewDelegateandUITableViewDataSourceoffer. -
Obviously you will need to create&configure all the
UITableViewCellsthat the Module would contains.
Example of TableSectionModule with methods
import ModuleServices
class FirstSectionModule: TableSectionModule {
override func registerNibsForCells() -> [AnyClass] {
return super.registerNibsForCells() + [
Example1TableViewCell.classForCoder(),
]
}
override func registerClassForCells() -> [AnyClass] {
super.registerClassForCells() + [UITableViewCell.classForCoder()]
}
override func createRows() {
super.createRows()
rows.append(String(describing: Example1TableViewCell.self))
rows.append(String(describing: UITableViewCell.self))
}
override func tableView(_ tableView: UITableView, cellForRowAtIndexPath indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: className, for: indexPath)
let className = rows[(indexPath as NSIndexPath).row] as! String
//Addtional configuration for the cell
switch className {
case String(describing: UITableViewCell.self):
cell.textLabel?.text = "A tottally native cell"
break
default:
break
}
return cell
}
override func tableView(_ tableView: UITableView, heightForRowAtIndexPath indexPath: IndexPath) -> CGFloat {
return 44.0
}3. Create a ModulesViewController
You need to create a subclass of ModulesViewController
class MyViewController: ModulesViewController {}4. Override the needed methods in the ViewController
The methods to be override in the ModulesViewController are less than on the Modules. Usually is just needed to override the createModules
override func createModules()This method will add all the modules that the view controller could have. Like this example:
override func createModules() {
super.createModules()
appendModule(FirstSectionModule(tableView: tableView!))
}Example of ModulesViewController with methods
import ModuleServices
class MyViewController: ModulesViewController {
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
tableView?.rowHeight = UITableViewAutomaticDimension
tableView?.estimatedRowHeight = 44
tableView?.tableFooterView = UIView()
}
override func createModules() {
super.createModules()
appendModule(FirstSectionModule(tableView: tableView!))
}
}
As could appreciate this is a very good approach to avoid masive view controllers. The main idea is to split responsabilities.
- A
ModulesViewControllerwill manage (add/remove)TableSectionModule - A
TableSectionModulewill manage the cells that the section itself will contains - A
TableSectionModulecould contain enough logic & responsability how to make it fully work that section of theUITableView
Enjoy and be module my developer! 
Author
Francisco Javier Trujillo Mata, [email protected]
License
ModuleServices is available under the MIT license. See the LICENSE file for more info.