Memory Usage with UICollectionView extremely high - ios

Question

I am having an issue with memory usage. Whenever I scroll or reload the data the memory usage keeps going up and never goes down. I have a feeling that for some reason the cells are not releasing any of the items displayed.
Any help would be greatly appreciated. I am quite sure I am doing something wrong, but I can't seem to find what.
Thank you in advance
Here is the code for creating my UICollectionView:
import Foundation
import UIKit
import CoreData
import Crashlytics
public class podCollectionView : UIViewController,UICollectionViewDelegate, UICollectionViewDataSource, UICollectionViewDelegateFlowLayout,UIPopoverPresentationControllerDelegate {
private var collectionView : UICollectionView = UICollectionView(frame: CGRectZero, collectionViewLayout: UICollectionViewFlowLayout()) // Initialization
private var inmates : NSArray = [];
private var context : NSManagedObjectContext = (UIApplication.sharedApplication().delegate as! AppDelegate).managedObjectContext;
private var configuration = Configuration.sharedInstance;
private var titleView = UILabel();
private var database : FMDatabase = (UIApplication.sharedApplication().delegate as! AppDelegate).database!;
public override func viewDidLoad() {
getInmates();
super.viewDidLoad();
self.collectionView = podMainView(x: "1", y: "2");
self.collectionView.registerClass(UICollectionViewCell.self, forCellWithReuseIdentifier: "CellCell") // UICollectionViewCell
self.collectionView.backgroundColor = UIColor.clearColor();
self.collectionView.layer.cornerRadius = 5;
self.collectionView.layer.masksToBounds = true;
self.collectionView.delegate = self // delegate : UICollectionViewDelegate
self.collectionView.dataSource = self // datasource : UICollectionViewDataSource
self.view.addSubview(self.collectionView);
self.view = self.collectionView;
self.navigationItem.setHidesBackButton(true, animated:false);
var inmateRefresh: NSTimer!
gameTimer = NSTimer.scheduledTimerWithTimeInterval(120, target: self, selector: #selector(refreshDAta), userInfo: nil, repeats: true);
}
public func collectionView(collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
return self.inmates.count;
}
public func collectionView(collectionView: UICollectionView, cellForItemAtIndexPath indexPath: NSIndexPath) -> UICollectionViewCell {
let retVal : UICollectionViewCell = self.collectionView.dequeueReusableCellWithReuseIdentifier("CellCell", forIndexPath: indexPath);
retVal.prepareForReuse();
retVal.addSubview(InmateSummary(inmate: self.inmates.objectAtIndex(indexPath.item) as! NSArray,parent: self));
return retVal;
}
private func getInmates(){
var totalInmates = 0;
var inmatesInArea = 0;
var inmatesOutOfArea = 0;
self.inmates = [];
do{
let tmpInmates : NSMutableArray = [];
let rs = try self.database.executeQuery("SELECT * FROM inmates WHERE podName='"+self.configuration.currentArea+"' ORDER BY suicideBlue DESC", values: nil)
while rs.next() {
let rowData : NSMutableArray = []
let colCount = Int(rs.columnCount()) as Int;
for i in 0 ..< colCount {
rowData.addObject(rs.objectForColumnName(rs.columnNameForIndex(Int32(i))));
}
if rowData[7] as! String == "" {
inmatesInArea = inmatesInArea + 1;
}else{
inmatesOutOfArea = inmatesOutOfArea + 1;
}
totalInmates = totalInmates + 1;
tmpInmates.addObject(rowData);
}
self.inmates = tmpInmates;
} catch {
CLSLogv("Error while loading inmates in main screen \(error)%#", getVaList(["three"]));
}
let barText = String(inmatesInArea) + "/" + String(inmatesOutOfArea) + " (" + String(totalInmates) + ")";
let buttonBack: UIButton = UIButton(type: UIButtonType.Custom) as UIButton
buttonBack.frame = CGRectMake(0, 0, 100, 40)
buttonBack.setTitle(barText, forState: .Normal);
let leftBarButtonItem: UIBarButtonItem = UIBarButtonItem(customView: buttonBack)
self.navigationItem.setLeftBarButtonItem(leftBarButtonItem, animated: false)
//self.database.close();
}
public func changePod(pod:String){
self.configuration.currentArea = pod;
self.titleView.text = pod + " ▼";
self.getInmates();
self.collectionView.reloadData();
}
public func refreshDAta(){
self.database.close();
self.database.open();
let inmateFetcer = InmateFetcher();
inmateFetcer.getUpdates();
self.getInmates();
//self.inmates = [];
self.collectionView.reloadData();
NSLog("DATA REFRESHED");
}
override public func preferredStatusBarStyle() -> UIStatusBarStyle {
return UIStatusBarStyle.LightContent
}
}
And here is the code for the views within the cells:
import Foundation
import UIKit
public class InmateSummary : UIView, UIPopoverPresentationControllerDelegate{
public var inmate:NSArray;
private var screenSize : CGRect = UIScreen.mainScreen().bounds;
private var configuration = Configuration.sharedInstance;
private var parent : podCollectionView;
init(inmate:NSArray, parent:podCollectionView){
let cellHeight = screenSize.height * 0.295;
let cellWidth = screenSize.width * 0.295;
self.inmate = inmate;
self.parent = parent;
super.init(frame: CGRect(x: 0, y: 0, width: cellWidth, height: cellHeight));
let aSelector : Selector = #selector(InmateSummary.inmateClicked(_:));
let tapGesture = UITapGestureRecognizer(target: self, action: aSelector);
tapGesture.numberOfTapsRequired = 1;
self.addGestureRecognizer(tapGesture);
self.backgroundColor = UIColor(red: 0, green: 0, blue: 0, alpha: 1);
let topView = UIView(frame: CGRect(x: 0, y: 0, width: cellWidth, height: cellHeight*0.10));
topView.backgroundColor = UIColor.grayColor();
self.addSubview(topView);
let cellLab = UILabel(frame: CGRect(x: 0, y: 0, width: cellWidth, height: cellHeight*0.10));
cellLab.text = self.inmate[3] as? String;
cellLab.textColor = UIColor.whiteColor();
cellLab.font = UIFont.init(name:"Arial-BoldMT", size: 30);
cellLab.textAlignment = NSTextAlignment.Center;
self.addSubview(cellLab);
let sexLab = UILabel(frame: CGRect(x: cellWidth*0.75, y: 0, width: cellWidth*0.25, height: cellHeight*0.10));
sexLab.text = self.inmate[1] as? String
sexLab.textColor = UIColor.whiteColor();
sexLab.textAlignment = NSTextAlignment.Center;
self.addSubview(sexLab);
let greyView = UIView(frame: CGRect(x: 0, y: cellHeight*0.10, width: cellWidth, height: cellHeight*0.70));
greyView.backgroundColor = UIColor.grayColor();
self.addSubview(greyView);
if self.inmate[7] as? String == "" {
greyView.backgroundColor = UIColor.blackColor();
}
let eventLab = UILabel(frame: CGRect(x: cellWidth*0.75, y: 0, width: cellWidth*0.25, height: cellHeight*0.10));
eventLab.text = self.inmate[7] as? String;
eventLab.textColor = UIColor.whiteColor();
eventLab.textAlignment = NSTextAlignment.Center;
eventLab.adjustsFontSizeToFitWidth = true;
greyView.addSubview(eventLab);
let classLab = UILabel(frame: CGRect(x: 0, y: 0, width: cellWidth*0.25, height: cellHeight*0.10));
classLab.text = self.inmate[4] as? String;
classLab.textAlignment = NSTextAlignment.Center;
classLab.font = UIFont.init(name:"Arial-BoldMT", size: 20);
classLab.adjustsFontSizeToFitWidth = true;
if(classLab.text == "RISK"){
classLab.textColor = UIColor.yellowColor();
}else if(classLab.text == "7CLS"){
classLab.textColor = UIColor(red: 1.0, green:0.5, blue:0.0, alpha:1);
}else if(classLab.text == "8MAX"){
classLab.textColor = UIColor(red:1.0, green:0.0, blue:0.0, alpha:0.7);
}else{
classLab.textColor = UIColor.whiteColor();
}
greyView.addSubview(classLab);
var mugshot : UIImage = UIImage();
if (self.inmate[12] as? NSData) != nil {
mugshot = UIImage(data: (self.inmate[12] as? NSData)!)!;
}else{
NSLog("Inmate without mugshot: %#",self.inmate[2] as! String);
}
let mugshotView = UIImageView(frame: CGRect(x: cellWidth*0.16, y: cellHeight*0.09, width: cellWidth*0.66, height: cellHeight*0.5));
mugshotView.image = mugshot;
greyView.addSubview(mugshotView);
let bookingNumber = UILabel(frame: CGRect(x: cellWidth*0.25, y: cellHeight*0.545, width: cellWidth*0.50, height: cellHeight*0.15));
bookingNumber.text = self.inmate[2] as? String;
bookingNumber.textColor = UIColor.whiteColor();
bookingNumber.textAlignment = NSTextAlignment.Center;
bookingNumber.font = UIFont.init(name:"Arial-BoldMT", size: 20);
bookingNumber.adjustsFontSizeToFitWidth = true;
greyView.addSubview(bookingNumber);
let nameView = UIView(frame: CGRect(x: 0, y: cellHeight*0.75, width: cellWidth, height: cellHeight*0.25));
self.addSubview(nameView);
let maxRed = UIView(frame: CGRect(x: 0, y: 0, width: cellWidth*0.33, height: cellHeight*0.115));
maxRed.backgroundColor = UIColor.blackColor();
if (self.inmate[15] as! NSNumber == 1) {
maxRed.backgroundColor = UIColor.redColor();
}
nameView.addSubview(maxRed);
let suBlue = UIView(frame: CGRect(x: cellWidth*0.33, y: 0, width: cellWidth*0.33, height: cellHeight*0.115));
suBlue.backgroundColor = UIColor.blackColor();
if (self.inmate[18] as! NSNumber == 1) {
let aSelector : Selector = #selector(InmateSummary.suicideClicked(_:));
let tapGesture = UITapGestureRecognizer(target: self, action: aSelector);
tapGesture.numberOfTapsRequired = 1;
nameView.addGestureRecognizer(tapGesture);
suBlue.backgroundColor = UIColor.blueColor();
}
nameView.addSubview(suBlue);
let segGreen = UIView(frame: CGRect(x: cellWidth*0.66, y: 0, width: cellWidth*0.33, height: cellHeight*0.115));
segGreen.backgroundColor = UIColor.blackColor();
if (self.inmate[5] as! NSNumber == 1) {
segGreen.backgroundColor = UIColor.greenColor();
}
nameView.addSubview(segGreen);
let nameLab = UILabel(frame: CGRect(x: cellWidth*0.025, y: cellHeight*0.12, width: cellWidth*0.95, height: cellHeight*0.05));
nameLab.text = self.inmate[0] as? String;
nameLab.textAlignment = NSTextAlignment.Center;
nameLab.textColor = UIColor.whiteColor();
nameLab.font = UIFont.init(name:"Arial-BoldMT", size: 20);
nameLab.adjustsFontSizeToFitWidth = true;
nameView.addSubview(nameLab);
if(self.inmate[18] as! NSNumber == 1){
//NSLog("Suicide: %#",self.inmate);
let checkLab = UILabel(frame: CGRect(x: 0, y: cellHeight*0.17, width: cellWidth, height: cellHeight*0.07));
let formatter = NSDateFormatter()
formatter.dateFormat = "MM/dd HH:mm"
let tmpDate = NSDate(timeIntervalSince1970: (self.inmate[19] as! NSString).doubleValue)
let dateString = formatter.stringFromDate(tmpDate);
checkLab.text = (self.inmate[22] as? String)! + " - " + dateString;
checkLab.textAlignment = NSTextAlignment.Center;
checkLab.textColor = UIColor.whiteColor();
checkLab.font = UIFont.init(name:"Arial", size: 18);
checkLab.adjustsFontSizeToFitWidth = true;
nameView.addSubview(checkLab);
}
if self.inmate[1] as? String == "F" {
nameView.backgroundColor = UIColor.purpleColor();
}
self.layer.cornerRadius = 5;
self.layer.borderColor = UIColor.grayColor().CGColor;
self.layer.borderWidth = 1;
self.layer.masksToBounds = true;
}
func suicideClicked(sender:UITapGestureRecognizer!){
let podsChooser = ActivityChooser(parentView:self);
podsChooser.modalPresentationStyle = .Popover;
let popoverMenuViewController = podsChooser.popoverPresentationController
popoverMenuViewController!.permittedArrowDirections = .Any
popoverMenuViewController!.delegate = self
popoverMenuViewController!.sourceView = sender.view;
self.parent.presentViewController(
podsChooser,
animated: true,
completion: nil)
}
func inmateClicked (sender:InmateSummary){
NSLog("Inmate Clicked");
let vc = SingleInmateDisplay(inmate: inmate);
self.parent.navigationController!.pushViewController(vc,animated:false);
}
required public init?(coder aDecoder: NSCoder) {
fatalError("init(coder:) has not been implemented")
}
}