swift - Updating several uiimageview - swift

Question

I have been working on this project which needs several uiimageviews which, they are in a uicollectionviewcell, to be updated based on the information on the database!
i have tried background threads but it didnt help!im wondering why the images wont update!
here is my code
func update_cells()
{
if sqlite3_prepare(self.db, "SELECT * FROM `habit_days` WHERE `habit_id` = \(self.id!)", -1, &self.stmt, nil) == SQLITE_OK
{
while(sqlite3_step(self.stmt) == SQLITE_ROW)
{
if(String(cString: sqlite3_column_text(self.stmt, 3 )) == "checked")
{
DispatchQueue.main.async {
let image = self.view.viewWithTag(self.day_id) as? UIImageView
image?.image = UIImage(named: "mark")
self.day_id = self.day_id + 1
}
}else{
DispatchQueue.main.async {
let image = self.view.viewWithTag(self.day_id) as? UIImageView
image?.image = UIImage(named: "uncheck")
self.day_id = self.day_id + 1
}
}
self.date = String(cString:sqlite3_column_text(self.stmt, 2))
let frmt = DateFormatter()
frmt.dateFormat = "yyyy/MM/dd HH:mm:ss"
self.lastdate = frmt.date(from: self.date!)
}
self.todayedate = Date()
}
}
any help would be appriciated
///////////////////
UPDATE
So i have changed my code to this and now i have my code working but still 1 problem :| all the cells are changing except the first one!
//
// Habit_Activity.swift
// Habit
//
// Created by shayan rahimian on 3/3/18.
// Copyright © 2018 shayan rahimian. All rights reserved.
//
import UIKit
import SQLite3
class Habit_check: UIViewController,UICollectionViewDelegate,UICollectionViewDataSource{
func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
return days
}
#IBOutlet weak var des: UITextView!
#IBOutlet weak var col: UICollectionView!
func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "cell", for: indexPath)
cell.layer.borderWidth = 1.5
cell.layer.borderColor = self.hexStringToUIColor(hex: "#a0a0a0").cgColor
let image = UIImageView(frame: CGRect(x: 0, y: 0, width: 20, height: 20))
print(indexPath.row)
image.tag = indexPath.row
cell.contentView.addSubview(image)
return cell
}
#IBAction func back(_ sender: Any) {
let back = UIStoryboard(name: "Main", bundle: Bundle.main).instantiateViewController(withIdentifier: "habits_list") as? Habits_list
self.present(back!, animated: true, completion: nil)
}
#IBAction func check(_ sender: Any) {
let frmt = DateFormatter()
frmt.dateFormat = "yyyy/MM/dd HH:mm:ss"
let mystr = frmt.string(from: todayedate)
print(mystr)
if ( days_passed > 0){
sqlite3_exec(db, "INSERT INTO `habit_days`(`id`,`habit_id`,`time`,`state`) VALUES(null,\(self.id!),'\(mystr)','checked')", nil, nil, nil)
let image = self.view.viewWithTag(day_id) as? UIImageView
image?.image = UIImage(named: "mark")
days_passed = 0
day_id = day_id + 1
}
else{
self.view.makeToast("باید از اخرین تغیریرات شما ۲۴ ساعت گذشته باشد", duration: 2.0, point: CGPoint(x: 110.0, y: 110.0), title: "", image: nil, style: ToastStyle.init(), completion: nil)
}
}
#IBOutlet weak var cell_view: UIView!
#IBAction func del(_ sender: Any) {
let frmt = DateFormatter()
frmt.dateFormat = "yyyy/MM/dd HH:mm:ss"
let mystr = frmt.string(from: todayedate)
if ( days_passed > 0){
sqlite3_exec(db, "INSERT INTO `habit_days`(`id`,`habit_id`,`time`,`state`) VALUES(null,\(self.id!),'\(mystr)','unchecked')", nil, nil, nil)
let image = self.view.viewWithTag(self.day_id) as? UIImageView
image?.image = UIImage(named: "uncheck")
days_passed = 0
day_id = day_id + 1
}
else{
self.view.makeToast("باید از اخرین تغیریرات شما ۲۴ ساعت گذشته باشد", duration: 2.0, point: CGPoint(x: 110.0, y: 110.0), title: "", image: nil, style: ToastStyle.init(), completion: nil)
}
}
#IBOutlet weak var name_label: UILabel!
var id : Int!
var db: OpaquePointer?
var stmt:OpaquePointer?
var name: String!
var days: Int!
var day_id = 0
var date: String!
var lastdate: Date!
var todayedate: Date!
var days_passed = 999
weak var delegate: Habits_list!
override func viewDidLoad() {
super.viewDidLoad()
cell_view.layer.borderWidth = 3
cell_view.layer.borderColor = self.hexStringToUIColor(hex: "#a0a0a0").cgColor
cell_view.layer.cornerRadius = 10
col.layer.borderWidth = 3
col.layer.borderColor = self.hexStringToUIColor(hex: "#a0a0a0").cgColor
col.layer.cornerRadius = 10
des.layer.borderWidth = 3
des.layer.borderColor = self.hexStringToUIColor(hex: "#a0a0a0").cgColor
des.layer.cornerRadius = 10
get_info()
DispatchQueue.global(qos: .background).async {
self.update_cells()
if (self.lastdate != nil) {
self.days_passed = Calendar.current.dateComponents([.day], from: self.lastdate, to: self.todayedate).day!
}
}
}
func update_cells()
{
if sqlite3_prepare(self.db, "SELECT * FROM `habit_days` WHERE `habit_id` = \(self.id!)", -1, &self.stmt, nil) == SQLITE_OK
{
while(sqlite3_step(self.stmt) == SQLITE_ROW)
{
if(String(cString: sqlite3_column_text(self.stmt, 3 )) == "checked")
{
DispatchQueue.main.async {
let image = self.view.viewWithTag(self.day_id) as? UIImageView
image?.image = UIImage(named: "mark")
self.day_id = self.day_id + 1
}
}else{
DispatchQueue.main.async {
let image = self.view.viewWithTag(self.day_id) as? UIImageView
image?.image = UIImage(named: "uncheck")
self.day_id = self.day_id + 1
}
}
self.date = String(cString:sqlite3_column_text(self.stmt, 2))
let frmt = DateFormatter()
frmt.dateFormat = "yyyy/MM/dd HH:mm:ss"
self.lastdate = frmt.date(from: self.date!)
}
self.todayedate = Date()
}
}
func get_info()
{
let fileNameToDelete = "habits.sqlite"
var filePath = ""
// Fine documents directory on device
let dirs : [String] = NSSearchPathForDirectoriesInDomains(FileManager.SearchPathDirectory.documentDirectory, FileManager.SearchPathDomainMask.allDomainsMask, true)
if dirs.count > 0
{
let dir = dirs[0] //documents directory
filePath = dir.appendingFormat("/" + fileNameToDelete)
print("Local path = \(filePath)")
} else
{
print("Could not find local directory to store file")
return
}
let fileURL = try! FileManager.default.url(for: .documentDirectory, in: .userDomainMask, appropriateFor: nil, create: false)
.appendingPathComponent("user.sqlite")
if sqlite3_open(fileURL.path, &db) == SQLITE_OK
{
if sqlite3_prepare(db, "SELECT * FROM `habits` WHERE `id` = \(self.id!)", -1, &stmt, nil) == SQLITE_OK
{
while(sqlite3_step(stmt) == SQLITE_ROW){
self.name = String(cString: sqlite3_column_text(stmt, 1))
name_label.text = self.name
self.days = Int(sqlite3_column_int(stmt, 2))
}
}
}
}
}
cell with tag number 0 is not changing! but other ones are ok.
///////////////////////
UPDATE 3 (Some how solved)
i have updated my code as below, it is not what i wanted but it is a work around in some way
//
// Habit_Activity.swift
// Habit
//
// Created by shayan rahimian on 3/3/18.
// Copyright © 2018 shayan rahimian. All rights reserved.
//
import UIKit
import SQLite3
class Habit_check: UIViewController,UICollectionViewDelegate,UICollectionViewDataSource{
func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
return days + 1
}
#IBOutlet weak var des: UITextView!
#IBOutlet weak var col: UICollectionView!
func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "cell", for: indexPath)
cell.transform = CGAffineTransform(scaleX: -1, y: 1)
if indexPath.row != 0 {
cell.layer.borderWidth = 1.5
cell.layer.borderColor = self.hexStringToUIColor(hex: "#a0a0a0").cgColor
let image = UIImageView(frame: CGRect(x: 0, y: 0, width: 20, height: 20))
image.tag = indexPath.row
cell.contentView.addSubview(image)
}
return cell
}
#IBAction func back(_ sender: Any) {
let back = UIStoryboard(name: "Main", bundle: Bundle.main).instantiateViewController(withIdentifier: "habits_list") as? Habits_list
self.present(back!, animated: true, completion: nil)
}
#IBAction func check(_ sender: Any) {
let frmt = DateFormatter()
frmt.dateFormat = "yyyy/MM/dd HH:mm:ss"
let mystr = frmt.string(from: todayedate)
print(mystr)
if (day_id <= days) {
if ( days_passed > 0){
sqlite3_exec(db, "INSERT INTO `habit_days`(`id`,`habit_id`,`time`,`state`) VALUES(null,\(self.id!),'\(mystr)','checked')", nil, nil, nil)
let image = self.view.viewWithTag(day_id) as? UIImageView
image?.image = UIImage(named: "mark")
days_passed = 0
day_id = day_id + 1
}
else{
self.view.makeToast("باید از اخرین تغییرات شما ۲۴ ساعت گذشته باشد", duration: 2.0, point: CGPoint(x: 110.0, y: 110.0), title: "", image: nil, style: ToastStyle.init(), completion: nil)
}
}else{
self.view.makeToast("تعداد روز های عادت شما به پایان رسیده", duration: 2.0, point: CGPoint(x: 110.0, y: 110.0), title: "", image: nil, style: ToastStyle.init(), completion: nil)
}
}
#IBOutlet weak var cell_view: UIView!
#IBAction func del(_ sender: Any) {
let frmt = DateFormatter()
frmt.dateFormat = "yyyy/MM/dd HH:mm:ss"
let mystr = frmt.string(from: todayedate)
if (day_id <= days) {
if ( days_passed > 0){
sqlite3_exec(db, "INSERT INTO `habit_days`(`id`,`habit_id`,`time`,`state`) VALUES(null,\(self.id!),'\(mystr)','unchecked')", nil, nil, nil)
let image = self.view.viewWithTag(self.day_id) as? UIImageView
image?.image = UIImage(named: "uncheck")
days_passed = 0
day_id = day_id + 1
}
else{
self.view.makeToast("باید از اخرین تغیریرات شما ۲۴ ساعت گذشته باشد", duration: 2.0, point: CGPoint(x: 110.0, y: 110.0), title: "", image: nil, style: ToastStyle.init(), completion: nil)
}
}else{
self.view.makeToast("تعداد روز های عادت شما به پایان رسیده", duration: 2.0, point: CGPoint(x: 110.0, y: 110.0), title: "", image: nil, style: ToastStyle.init(), completion: nil)
}
}
#IBOutlet weak var name_label: UILabel!
var id : Int!
var db: OpaquePointer?
var stmt:OpaquePointer?
var name: String!
var days: Int!
var day_id = 1
var date: String!
var lastdate: Date!
var todayedate: Date!
var days_passed = 999
weak var delegate: Habits_list!
override func viewDidLoad() {
super.viewDidLoad()
get_info()
des.textAlignment = .right
des.makeTextWritingDirectionRightToLeft(self)
col.transform = CGAffineTransform(scaleX: -1, y: 1)
}
override func viewDidAppear(_ animated: Bool) {
cell_view.layer.borderWidth = 3
cell_view.layer.borderColor = self.hexStringToUIColor(hex: "#a0a0a0").cgColor
cell_view.layer.cornerRadius = 10
col.layer.borderWidth = 3
col.layer.borderColor = self.hexStringToUIColor(hex: "#a0a0a0").cgColor
col.layer.cornerRadius = 10
des.layer.borderWidth = 3
des.layer.borderColor = self.hexStringToUIColor(hex: "#a0a0a0").cgColor
des.layer.cornerRadius = 10
DispatchQueue.global(qos: .background).async {
self.update_cells()
if (self.lastdate != nil) {
self.days_passed = Calendar.current.dateComponents([.day], from: self.lastdate, to: self.todayedate).day!
}
}
}
func update_cells()
{
if sqlite3_prepare(self.db, "SELECT * FROM `habit_days` WHERE `habit_id` = \(self.id!)", -1, &self.stmt, nil) == SQLITE_OK
{
while(sqlite3_step(self.stmt) == SQLITE_ROW)
{
if(String(cString: sqlite3_column_text(self.stmt, 3 )) == "checked")
{
DispatchQueue.main.async {
let image = self.view.viewWithTag(self.day_id) as? UIImageView
image?.image = UIImage(named: "mark")
self.day_id = self.day_id + 1
}
}else{
DispatchQueue.main.async {
let image = self.view.viewWithTag(self.day_id) as? UIImageView
image?.image = UIImage(named: "uncheck")
self.day_id = self.day_id + 1
}
}
self.date = String(cString:sqlite3_column_text(self.stmt, 2))
let frmt = DateFormatter()
frmt.dateFormat = "yyyy/MM/dd HH:mm:ss"
self.lastdate = frmt.date(from: self.date!)
}
self.todayedate = Date()
}
}
func get_info()
{
let fileNameToDelete = "habits.sqlite"
var filePath = ""
// Fine documents directory on device
let dirs : [String] = NSSearchPathForDirectoriesInDomains(FileManager.SearchPathDirectory.documentDirectory, FileManager.SearchPathDomainMask.allDomainsMask, true)
if dirs.count > 0
{
let dir = dirs[0] //documents directory
filePath = dir.appendingFormat("/" + fileNameToDelete)
print("Local path = \(filePath)")
} else
{
print("Could not find local directory to store file")
return
}
let fileURL = try! FileManager.default.url(for: .documentDirectory, in: .userDomainMask, appropriateFor: nil, create: false)
.appendingPathComponent("user.sqlite")
if sqlite3_open(fileURL.path, &db) == SQLITE_OK
{
if sqlite3_prepare(db, "SELECT * FROM `habits` WHERE `id` = \(self.id!)", -1, &stmt, nil) == SQLITE_OK
{
while(sqlite3_step(stmt) == SQLITE_ROW){
self.name = String(cString: sqlite3_column_text(stmt, 1))
name_label.text = self.name
self.des.text = String(cString: sqlite3_column_text(stmt, 3))
self.days = Int(sqlite3_column_int(stmt, 2))
}
}
}
}
}