Table view scrolling is erratic and jumpy even though I reuse cells? - ios

Question

Okay, so I'm not sure whats been happening with my Table view, but it seems to act a bit strange now that I load images from parse onto it. At first, it ran smoothly, but now that I'm working in ios 9, the scrolling is horrible
Optimizations I've used to reduce this(Keep in mind they do not really help.)
-Removed transparent objects and set them to default background
-reused table cells
-Tried to use lower quality images
Here is my code
import UIKit
class mainVC: UIViewController, UITableViewDataSource, UITableViewDelegate {
#IBOutlet weak var resultsTable: UITableView!
#IBOutlet weak var menuButton:UIBarButtonItem!
var deleteArray = [String]()
var followArray = [String]()
var resultsLocationArray = [String]()
var datetextfielArray = [String]()
var imageDates = [String]()
var resultsNameArray = [String]()
var resulltsImageFiles = [PFFile]()
var resultsTweetArray = [String]()
var resultsHasImageArray = [String]()
var resultsTweetImageFiles = [PFFile?]()
var refresher:UIRefreshControl!
override func viewDidLoad() {
super.viewDidLoad()
if self.revealViewController() != nil {
menuButton.target = self.revealViewController()
menuButton.action = "revealToggle:"
self.view.addGestureRecognizer(self.revealViewController().panGestureRecognizer())
// Uncomment to change the width of menu
//self.revealViewController().rearViewRevealWidth = 62
}
let theWidth = view.frame.size.width
let theHeight = view.frame.size.height
resultsTable.frame = CGRectMake(0, 0, theWidth, theHeight)
let tweetBtn = UIBarButtonItem(barButtonSystemItem: UIBarButtonSystemItem.Compose, target: self, action: Selector("tweetBtn_click"))
let searchBtn = UIBarButtonItem(barButtonSystemItem: UIBarButtonSystemItem.Search, target: self, action: Selector("searchBtn_click"))
let buttonArray = NSArray(objects: tweetBtn, searchBtn)
self.navigationItem.rightBarButtonItems = buttonArray as? [UIBarButtonItem]
refresher = UIRefreshControl()
refresher.tintColor = UIColor.blackColor()
refresher.addTarget(self, action: "refresh", forControlEvents: UIControlEvents.ValueChanged)
self.resultsTable.addSubview(refresher)
}
func refresh() {
print("refresh table")
refreshResults()
}
func refreshResults() {
followArray.removeAll(keepCapacity: false)
resultsNameArray.removeAll(keepCapacity: false)
resulltsImageFiles.removeAll(keepCapacity: false)
resultsTweetArray.removeAll(keepCapacity: false)
resultsLocationArray.removeAll(keepCapacity: false)
resultsHasImageArray.removeAll(keepCapacity: false)
resultsTweetImageFiles.removeAll(keepCapacity: false)
datetextfielArray.removeAll(keepCapacity: false)
let followQuery = PFQuery(className: "follow")
followQuery.whereKey("user", equalTo: PFUser.currentUser()!.username!)
followQuery.addDescendingOrder("createdAt")
let objects = followQuery.findObjects()
for object in objects! {
self.followArray.append(object.objectForKey("userToFollow") as! String)
}
let query:PFQuery = PFQuery(className: "tweets")
query.whereKey("userName", containedIn: followArray)
query.addDescendingOrder("createdAt")
query.findObjectsInBackgroundWithBlock {
(objects:[AnyObject]?, error:NSError?) -> Void in
if error == nil {
for object in objects! {
self.resultsNameArray.append(object.objectForKey("profileName") as! String)
self.resulltsImageFiles.append(object.objectForKey("photo") as! PFFile)
self.resultsTweetArray.append(object.objectForKey("tweet") as! String)
//resultsLocationArray
self.resultsLocationArray.append(object.objectForKey("tweetlocation") as! String)
self.resultsHasImageArray.append(object.objectForKey("hasImage") as! String)
self.resultsTweetImageFiles.append(object.objectForKey("tweetImage") as? PFFile)
self.datetextfielArray.append(object.objectForKey("datetextfield") as! String)
self.resultsTable.reloadData()
}
self.refresher.endRefreshing()
}
}
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
override func viewWillAppear(animated: Bool) {
self.navigationController?.navigationBarHidden = false
super.viewWillAppear(animated)
let nav = self.navigationController?.navigationBar
nav?.barStyle = UIBarStyle.Black
nav?.tintColor = UIColor.whiteColor()
nav?.titleTextAttributes = [NSForegroundColorAttributeName: UIColor.whiteColor()]
self.navigationItem.hidesBackButton = true
}
func numberOfSectionsInTableView(tableView: UITableView) -> Int {
// Return the number of sections.
return 1
}
override func viewDidAppear(animated: Bool) {
refreshResults()
}
func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return resultsNameArray.count
}
func tableView(tableView: UITableView, heightForRowAtIndexPath indexPath: NSIndexPath) -> CGFloat {
if resultsHasImageArray[indexPath.row] == "yes" {
return self.view.frame.size.width + 130
} else {
return 130
}
}
//var theDtS = dtFormater.stringFromDate(self.dateArray[i])
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let cell:mainCell = tableView.dequeueReusableCellWithIdentifier("Cell", forIndexPath: indexPath) as! mainCell
cell.tweetImg.hidden = true
cell.locationTxt.text = self.resultsLocationArray[indexPath.row]
cell.profileLbl.text = self.resultsNameArray[indexPath.row]
cell.messageTxt.text = self.resultsTweetArray[indexPath.row]
cell.datetextfield.text = self.datetextfielArray[indexPath.row]
resulltsImageFiles[indexPath.row].getDataInBackgroundWithBlock {
(imageData:NSData?, error:NSError?) -> Void in
//resultsLocationArray
if error == nil {
let image = UIImage(data: imageData!)
cell.imgView.image = image
}
}
if resultsHasImageArray[indexPath.row] == "yes" {
let theWidth = view.frame.size.width
cell.tweetImg.frame = CGRectMake(0, 0, theWidth, theWidth)
cell.tweetImg.hidden = false
resultsTweetImageFiles[indexPath.row]?.getDataInBackgroundWithBlock({
(imageData:NSData?, error:NSError?) -> Void in
if error == nil {
let image = UIImage(data: imageData!)
cell.tweetImg.image = image
}
})
}
return cell
}
func tweetBtn_click() {
print("tweet pressed")
self.performSegueWithIdentifier("gotoTweetVCFromMainVC", sender: self)
}
func searchBtn_click() {
print("search pressed")
self.performSegueWithIdentifier("gotoUsersVCFromMainVC", sender: self)
}
}