我的表视图类中存在一些问题，我已经从我的服务器获取了数据，并且可以显示在表视图中，但问题是当我完全从服务器获取数据时，它从未显示在表视图中，直到我触摸屏幕..当我触摸屏幕时，我可以看到我的数据，但我想在获得数据时查看我的数据.. 这是我的类..
import Foundation
import UIKit
class MovementRep : UIViewController , UITableViewDelegate, UITableViewDataSource{
var unitID : Int = 0;
var count : Int = 0;
var dateTime = [String]()
var speed = [Double]()
var event = [String]()
var location = [String]()
var len : Int = 0;
var deviation = [String]()
@IBOutlet weak var ActivityIndicator: UIActivityIndicatorView!
@IBOutlet weak var tableView: UITableView!
override func viewDidLoad() {
super.viewDidLoad()
print("Movement Report Called");
print("unit ID = (unitID)")
var id : String = String(self.unitID);
print("string id = (id)")
//Send Server Request
let myURL = NSURL(string: "<URL>");
let request = NSMutableURLRequest(URL: myURL!);
request.HTTPMethod = "POST";
let task = NSURLSession.sharedSession().dataTaskWithRequest(request){
data, responce, error in
self.ActivityIndicator.startAnimating()
if error != nil{
print("Error = (error)")
}
// print("Responce = (responce)")
// let responceString = NSString(data:data,encodeing:NSTUF8StringEncoding);
// print("Responce Data = (responceString)");
do {
if let jsonResult = try NSJSONSerialization.JSONObjectWithData(data!, options: []) as? NSDictionary {
// print("JSONResult = (jsonResult)")
let size = jsonResult["size"] as? Int
print("result: (size)");
self.len = size!;
if let Users = jsonResult["movementReport"] as? [[String: AnyObject]] {
//when you got irrespective response of numberOfRowsInSe...
//http://stackoverflow.com/questions/31498531/numberofrowsinsection-is-called-before-alamofire-connection/31498570#31498570
self.tableView.reloadData()
for name in Users {
//if you got null from Json ...
if let msg = name["message"] as? NSNull{
//print("got (d)")
self.location.append("null")
}
//simple chk
if let message = name["message"] as? String
{
self.location.append(message)
}
//if you got null from Json ...
if let dt = name["dateTime"] as? NSNull{
//print("got (d)")
self.location.append("null")
}
//simple chk
if let date = name["dateTime"] as? String
{
self.dateTime.append(date)
}
//if you got null from Json ...
if let sp = name["speed"] as? NSNull{
//print("got (d)")
self.speed.append(0.0)
}
//simple chk
if let speed = name["speed"] as? Double
{
self.speed.append(speed)
}
//if you got null from Json ...
if let ev = name["reportText"] as? NSNull{
//print("got (d)")
self.event.append("null")
}
//simple chk
if let event = name["reportText"] as? String
{
self.event.append(event)
}
//if you got null from Json ...
if let dev = name["route"] as? NSNull{
//print("got (d)")
self.deviation.append("--")
}
//simple chk
if let devtion = name["route"] as? String
{
self.deviation.append(devtion)
}
}
}
}
} catch let error as NSError {
print(error.localizedDescription)
}
}
task.resume();
self.tableView.reloadData();
}
override func viewWillAppear(animated: Bool) {
super.viewWillAppear(animated)
print("ViewWillAppearCaled")
self.tableView.reloadData();
}
override func viewDidAppear(animated: Bool) {
super.viewWillAppear(animated)
print("ViewDidAppearCaled")
}
func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
print("table view row")
return len
}
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
print("table view cell")
let cell = self.tableView.dequeueReusableCellWithIdentifier("cell", forIndexPath: indexPath) as! CustomCell
if (len > 0){
cell.date.text = dateTime[indexPath.row];
cell.speed.text = "(speed[indexPath.row])"
cell.position.text = event[indexPath.row]
cell.location.text = location[indexPath.row]
cell.deviation.text = deviation[indexPath.row]
cell.index.text = "(indexPath.row+1)";
self.ActivityIndicator.stopAnimating()
return cell
}
return cell
}
func tableView(tableView: UITableView, heightForRowAtIndexPath indexPath: NSIndexPath) -> CGFloat {
return 200.0
}
func tableView(tableView: UITableView, willDisplayCell cell: UITableViewCell, forRowAtIndexPath indexPath: NSIndexPath) {
cell.contentView.backgroundColor = UIColor.clearColor()
let whiteRoundedView : UIView = UIView(frame: CGRectMake(6, 6, self.view.frame.size.width, 200.0))
whiteRoundedView.layer.backgroundColor = CGColorCreate(CGColorSpaceCreateDeviceRGB(), [1.8, 1.8, 1.8, 1.8])
whiteRoundedView.layer.masksToBounds = false
whiteRoundedView.layer.cornerRadius = 3.0
//whiteRoundedView.layer.shadowOffset = CGSizeMake(-1, 1)
whiteRoundedView.layer.shadowOpacity = 0.1
cell.contentView.addSubview(whiteRoundedView)
cell.contentView.sendSubviewToBack(whiteRoundedView)
}
}
尝试替换此代码：
override func viewDidLoad() {
super.viewDidLoad()
print("Movement Report Called");
print("unit ID = (unitID)")
var id : String = String(self.unitID);
print("string id = (id)")
self.ActivityIndicator.startAnimating()
let backgroundQueue = dispatch_get_global_queue(qualityOfServiceClass, 0)
dispatch_async(backgroundQueue, {
let myURL = NSURL(string: "<URL>");
let request = NSMutableURLRequest(URL: myURL!);
request.HTTPMethod = "POST";
let task = NSURLSession.sharedSession().dataTaskWithRequest(request){
data, responce, error in
if error != nil{
print("Error = (error)")
}
do {
if let jsonResult = try NSJSONSerialization.JSONObjectWithData(data!, options: []) as? NSDictionary {
let size = jsonResult["size"] as? Int
print("result: (size)");
self.len = size!;
if let Users = jsonResult["movementReport"] as? [[String: AnyObject]] {
for name in Users {
//if you got null from Json ...
if let msg = name["message"] as? NSNull{
//print("got (d)")
self.location.append("null")
}
//simple chk
if let message = name["message"] as? String
{
self.location.append(message)
}
//if you got null from Json ...
if let dt = name["dateTime"] as? NSNull{
//print("got (d)")
self.location.append("null")
}
//simple chk
if let date = name["dateTime"] as? String
{
self.dateTime.append(date)
}
//if you got null from Json ...
if let sp = name["speed"] as? NSNull{
//print("got (d)")
self.speed.append(0.0)
}
//simple chk
if let speed = name["speed"] as? Double
{
self.speed.append(speed)
}
//if you got null from Json ...
if let ev = name["reportText"] as? NSNull{
//print("got (d)")
self.event.append("null")
}
//simple chk
if let event = name["reportText"] as? String
{
self.event.append(event)
}
//if you got null from Json ...
if let dev = name["route"] as? NSNull{
//print("got (d)")
self.deviation.append("--")
}
//simple chk
if let devtion = name["route"] as? String
{
self.deviation.append(devtion)
}
}
self.ActivityIndicator.stopAnimating()
dispatch_async(dispatch_get_main_queue()) {
self.tableView?.reloadData()
}
}
}
} catch let error as NSError {
print(error.localizedDescription)
}
}
task.resume();
})
}