RefreshableViewController
RefreshableViewController 是一个简单的视图控制器，它基于 PromiseKit 实现了基于 Promise 的刷新状态管理。
示例用法
import UIKit
import PromiseKit
import RefreshableViewController
struct APIClient {
static func getItem(itemID: Int) -> Promise<Item> {
return Promise { fulfill, reject in
// Make HTTP requests, etc...
let item = Item(name: "Item Name")
fulfill(item)
}
}
}
struct Item {
let name: String
}
class ItemViewController: RefreshableViewController<Item> {
convenience init(itemID: Int) {
self.init(request: APIClient.getItem(itemID: itemID))
}
override func refreshState() {
super.refreshState()
switch state {
case .ready:
print("View controller is ready")
case .loading:
print("View controller is loading")
case .success(let item):
print("View controller loaded item with name: \(item.name)")
case .failure(let error):
print("View controller failed to load item with error: \(error)")
}
}
}