刷新UITableViewController数据
刷新UITableViewController数据
提问于 2017-11-22 05:18:26
我有两个控制器，DashboardController和LocateVehicleController.有UITableViewController.的LocateVehicleController
在DashboardController中，按下按钮，我正在进行API调用和获取数据。并向LocateVehicleController发送数组。
let locateVehicleStoryboard: UIStoryboard = UIStoryboard(name: "Main", bundle: nil)
let locateVehicleController = locateVehicleStoryboard.instantiateViewController(withIdentifier: "tempID") as? LocateVehicle
self.present(locateVehicleController!, animated: true, completion: nil)
locateVehicleController?.dataArray = self.locateVehicleDataArr
locateVehicleController?.tableView.reloadData()在LocateVehicleController中，我有刷新按钮，如果我按下刷新按钮，我需要更新使用DashboardController调用数据的tableview控制器数据。
根据我的理解，当我按下刷新按钮时，相同的API调用将被调用。请帮我解决这个问题。提前谢谢。
回答 1
Stack Overflow用户
发布于 2017-11-22 05:29:07
我会将调用这个API的逻辑移到另一个类。将该类注入DashboardController和LocateVehicleController，并使用它们获取数据。就像这样：
struct Vehicle {
}
protocol VehicleDataFetcherProtocol {
func getVehicleData(completionHandler:([Vehicle])->()) // assuming the data is in form of an Array of a class/struct Vehicle
}
class VehicleDataFetcher: VehicleDataFetcherProtocol {
// Hit API, get data and call the completion hanlder
func getVehicleData(completionHandler:([Vehicle])->()) {
}
}
class DashboardController:UIViewController {
private var vehicleDataFetcher: VehicleDataFetcher!
func injectVehicleDataFetcher(dataFetcher:VehicleDataFetcher) {
self.vehicleDataFetcher = dataFetcher
}
func presentLocateVehicle() {
let locateVehicleStoryboard: UIStoryboard = UIStoryboard(name: "Main", bundle: nil)
let locateVehicleController = locateVehicleStoryboard.instantiateViewController(withIdentifier: "tempID") as? LocateVehicleController
self.present(locateVehicleController!, animated: true, completion: nil)
locateVehicleController?.injectVehicleDataFetcher(dataFetcher: self.vehicleDataFetcher)
locateVehicleController?.dataArray = self.locateVehicleDataArr
locateVehicleController?.tableView.reloadData()
}
}
class LocateVehicleController:UIViewController {
private var vehicleDataFetcher: VehicleDataFetcher!
func injectVehicleDataFetcher(dataFetcher:VehicleDataFetcher) {
self.vehicleDataFetcher = dataFetcher
}
}页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/47427312
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