[英]Cell data not showing up in UITableView?
任何想法我如何可以与Alamofire发出此GET请求-确切获得我想要的东西-将信息传递给func tableView(tableView:UITableView-填充并返回每个单元格,但是我的表只是简单地不会显示加载的数据?
从AlamoFire承诺的返回中,我调用self.refresh(),它在主线程中调用此函数:
func refresh() {
dispatch_async(dispatch_get_main_queue(),{
self.tableView.reloadData()
});
- 有任何想法吗? 从字面上看,这真让我发疯。 感谢您提前提出任何想法或解决方案!
import UIKit
import Alamofire
import MapKit
class ListViewController: UIViewController, UISearchBarDelegate, CLLocationManagerDelegate, UITableViewDelegate, UITableViewDataSource {
var tools = [Tool]()
@IBOutlet weak var searchBar: UISearchBar!
@IBOutlet weak var tableView: UITableView!
let locationManager = CLLocationManager()
var currentLat: CLLocationDegrees = 0.0
var currentLong: CLLocationDegrees = 0.0
override func viewDidLoad() {
super.viewDidLoad()
self.tableView.delegate = self
self.tableView.dataSource = self
searchBar.delegate = self
self.tableView.rowHeight = UITableViewAutomaticDimension
self.tableView.estimatedRowHeight = 116
self.tableView.registerClass(ToolTableViewCell.self, forCellReuseIdentifier: "ToolTableViewCell")
self.locationManager.delegate = self
self.locationManager.requestAlwaysAuthorization()
self.locationManager.requestWhenInUseAuthorization()
// if CLLocationManager.locationServicesEnabled() {
locationManager.delegate = self
locationManager.desiredAccuracy = kCLLocationAccuracyNearestTenMeters
locationManager.startUpdatingLocation()
}
func locationManager(manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {
let locValue:CLLocationCoordinate2D = manager.location!.coordinate
// print("locations = \(locValue.latitude) \(locValue.longitude)")
let location = locations.last! as CLLocation
currentLat = location.coordinate.latitude
currentLong = location.coordinate.longitude
}
func searchBarSearchButtonClicked(searchbar: UISearchBar)
{
searchbar.resignFirstResponder()
tools = []
let defaults = NSUserDefaults.standardUserDefaults()
let userid: Int = defaults.objectForKey("toolBeltUserID") as! Int
let searchTerm = String(searchBar.text!)
print(searchTerm)
Alamofire.request(.GET, "http://localhost:3000/tools/search", parameters: ["keyword": searchTerm, "latitude": currentLat, "longitude": currentLong,
"user": userid]) .responseJSON {response in
if let JSON = response.result.value {
print("\(JSON)")
for i in 0 ..< JSON.count {
let owner = JSON[i].objectForKey("owner")
let tool = JSON[i].objectForKey("tool")
let title = tool!["title"] as! String!
let ownerId = owner!["id"] as! Int!
let distanceToTool = JSON[i].objectForKey("distance") as! Double
var description: String
if let des = tool!["description"] as? NSNull {
description = ""
} else {
description = (tool!["description"] as? String!)!
}
let myTool = Tool(title: title!, description: description, ownerId: ownerId!, distance: distanceToTool)
self.tools.append(myTool)
}
// dispatch_async(dispatch_get_main_queue(), {
self.refresh()
// })
} else {
print("Sent search term, but no response")
}
}
}
func refresh() {
dispatch_async(dispatch_get_main_queue(),{
self.tableView.reloadData()
});
}
func numberOfSectionsInTableView(tableView: UITableView) -> Int {
return 1
}
func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
print(tools.count)
return tools.count
}
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let cellIdentifier = "ToolTableViewCell"
let cell = tableView.dequeueReusableCellWithIdentifier(cellIdentifier, forIndexPath: indexPath) as!ToolTableViewCell
let tool = tools[indexPath.row]
if(indexPath.row==0){
cell.title?.text = tool.title
// print(tool.title)
// cell.toolListDescription?.text = tool.description
cell.ownerId = tool.ownerId
// print(tool.ownerId)
// print(tool.distance)
// cell.distance?.text = "\(tool.distance)mi"
}
print(cell)
return cell
}
}
确保在attribute inspector!
设置“ Reuse Identifier
” attribute inspector!
在我的情况下是'ToolTableViewCell'
谢谢!
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