YLExtensions

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Make UITableView and UICollectionView easier to use.

// repository documentation

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# YLExtensions
Using YLEXtensions could get you out of massive boilerplate code when you want to register, configure a UITableView or UICollectionView page which contains multiple types of cells.

## Requirements

* iOS 13.0+
* Swift 5.1+

## Installation

### Cocoapods

To integrate YLExtensions into your Xcode project using CocoaPods, specify it in your `Podfile`:

```ruby
source 'https://github.com/CocoaPods/Specs.git'
platform :ios, '13.0'
use_frameworks!

target 'MyApp' do
  # your other pod
  # ...
  pod 'YLExtensions'
end
```

Run `pod install` to build your dependencies.

### Swift Package Manager

Select File > Swift Packages > Add Package Dependency. Enter `https://github.com/YuLeiFuYun/YLExtensions.git` in the "Choose Package Repository" dialog.

## Usage

In SomeModel.swift:

```swift
import YLExtensions

// Let SomeModel adopts and conforms to the ModelType protocol
struct SomeModel: ModelType {
    typealias Value = Never
    
    let someA: [A]
    let someB: [B]
    let someC: [C]
    let someD: [D]
    
    var data: [[Any]] {
        return [someA, someB, someC, someD]
    }
}

extension SomeModel {
    static var tCells: [UITableViewCell.Type]? {
        // All cell types created by pure code.
        [ACell.self, BCell.self]
    }
    
    static var tNibs: [UITableViewCell.Type]? {
        // All cell types created by nib.
        [CCell.self, DCell.self]
    }
    
    static var tAll: [UITableViewCell.Type]? {
        // All cell types, Sort by display order.
        [ACell.self, BCell.self, CCell.self, DCell.self]
    }
}
```

In SomeCell.swift:

```swift
class SomeCell: UITableViewCell {
    ...
    // Configure cell
    override func configure(_ model: Any?) {
        ...
    }
}
```

In SomeViewController.swift:

```swift
import YLExtensions

// 1. Create a model object
let someModel = SomeModel(...)

// 2. Register cells
override func viewDidLoad() {
    super.viewDidLoad()
    ...
    tableView.registerCells(with: SomeModel.tCells!)
    tableView.registerNibs(with: SomeModel.tNibs!)
}

// 3. Create and configure cells
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
    // Note: Only applies when cells of the same type are all together and the different types of cells are in different section.
    let cell = tableView.dequeueReusableCell(for: indexPath, with: SomeModel.tAll!)
    cell.configure(someModel.data[indexPath.section][indexPath.row])
    return cell
}
```

## License

YLExtensions is released under the MIT license. See LICENSE for details.

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