tableview: cellForRowAtIndexPath is not being called - ios

I can't figure out what is wrong with my tableView: cellForRowAtIndexPath. its never getting called for some reason. i have called the proper delegate and datasource. When I add a print("") line under the cellForRowAtIndexPath function, it never appears when i simulate the app.
Thank you in advanced.
here is my code for the whole page:
class MainPageViewController: UIViewController, UITableViewDelegate, UITableViewDataSource {
var sportCells = [PFObject]()
#IBOutlet weak var tableView: UITableView!
#IBOutlet weak var profilePictureImageView: UIImageView!
#IBOutlet weak var fullNameLabel: UILabel!
override func viewDidLoad() {
super.viewDidLoad()
self.tableView.dataSource = self
self.tableView.delegate = self
//Do any additional setup after loading the view.
}
override func viewDidAppear(animated: Bool) {
updateSportsTable()
print("its happening")
let lastName = PFUser.currentUser()! ["last_name"]
if let firstName = PFUser.currentUser()?["first_name"] as? String {
self.fullNameLabel.text = "\(firstName) \(lastName)"
}
if let userPicture = PFUser.currentUser()?["profile_picture"] as? PFFile {
userPicture.getDataInBackgroundWithBlock { (imageData: NSData?, error: NSError?) -> Void in
if (error == nil) {
self.profilePictureImageView.image = UIImage(data:imageData!)
}
}
}
}
func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
print("sportCells count is \(sportCells.count)")
return sportCells.count
}
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
print("data extracted1")
let cell = tableView.dequeueReusableCellWithIdentifier("sportCell") as! SportTableViewCell
print("data extracted")
let sportPost = self.sportCells[indexPath.row]
let user = sportPost["user"] as! PFUser
print("data extracted")
do {
try user.fetchIfNeeded()
print("its happening 3rd time")
} catch _ {
print("There was an error")
}
cell.sportTitle.text = sportPost["basketballTitle"] as? String
cell.sportLogo.text = sportPost["basketballLogo"] as? String
cell.numberOfPOTM.text = "5"
return cell
}
func updateSportsTable() {
let query = PFQuery(className: "Sports")
query.findObjectsInBackgroundWithBlock { (sportCells:[PFObject]?, error:NSError?) -> Void in
if error == nil {
self.tableView.reloadData()
print("its happening again")
}
}
}

As confirmed from the comments, you problem is data population in model sportCells.
Ensure that sportCells is populated properly and that you call self.tableView.reloadData after that.

Related

Swift 4 UITableView not showing JSON results

So my issue is that my JSON isn't showing in my tableView but it is printing in the terminal just fine. I have tried a few things but can't seem to get this to print in the Table at all. What could my issue be?
import UIKit
import Alamofire
import SwiftyJSON
class ViewController: UIViewController, UITableViewDelegate {
#IBOutlet var tableView: UITableView!
var arrRes = [[String:AnyObject]]() //Array of dictionary
override func viewDidLoad() {
super.viewDidLoad()
downloadJSON()
self.tableView.reloadData()
}
func downloadJSON() {
Alamofire.request(API_URL).responseJSON { (responseData) -> Void in
if ((responseData.result.value) != nil) {
let swiftyJsonVar = JSON(responseData.result.value!)
if let resData = swiftyJsonVar["race_results"].arrayObject {
self.arrRes = resData as! [[String: AnyObject]]
print("resData", resData)
if self.arrRes.count > 0 {
print("Table Updating")
print("Table should be updated")
self.tableView.reloadData()
}
}
print("new array3")
print(self.arrRes.count)
}
print("new array 2")
print(self.arrRes.count)
self.tableView.reloadData()
}
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return self.arrRes.count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> TableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "cell", for: indexPath) as! TableViewCell
var dict = self.arrRes[indexPath.row]
cell.name.text = dict["Full_Name"] as! String
cell.club.text = dict["Club"] as! String
cell.position.text = dict["Finish_Position"] as! String
return cell
}
You have to set dataSource in viewDidLoad
self.tableView.dataSource = self
//
class ViewController: UIViewController, UITableViewDelegate , UITableViewDataSource {....}
Below is the fixed code
lass ViewController: UIViewController, UITableViewDelegate, UITableViewDataSource {
#IBOutlet var tableView: UITableView!
var arrRes = [[String:AnyObject]]() //Array of dictionary
override func viewDidLoad() {
super.viewDidLoad()
self.tableView.dataSource = nil
downloadJSON()
}
func downloadJSON() {
Alamofire.request(API_URL).responseJSON { (responseData) -> Void in
if ((responseData.result.value) != nil) {
let swiftyJsonVar = JSON(responseData.result.value!)
if let resData = swiftyJsonVar["race_results"].arrayObject {
self.arrRes = resData as! [[String: AnyObject]]
print("resData", resData)
if self.arrRes.count > 0 {
print("Table Updating")
print("Table should be updated")
self.tableView.dataSource = self
self.tableView.reloadData()
}
}
print("new array3")
print(self.arrRes.count)
}
print("new array 2")
print(self.arrRes.count)
self.tableView.dataSource = self
self.tableView.reloadData()
}
}

Dealing with switch in Tableview at swift 2.2

I have one screen like the following picture:
I uploaded list with student name by using custom cell as you are seeing and I want when click on save button save the status of student in array , I initialized array with 0 for all student at the first time and when the status of switch is enabled then this value at the clicked cell index converted to 1 but I couldn't make that when the click action happened on switch this is only now happening when click on the cell ( row ) how I can do the same thing when only change the status of switch to update the array without click on complete row at table
Code of main view :
import UIKit
class teacherAttendanceVC: UIViewController , UITableViewDataSource,UITableViewDelegate {
#IBOutlet weak var studentlistTable: UITableView!
#IBOutlet weak var loadIndicator: UIActivityIndicatorView!
var username:String?
var classID: String?
var branchID: String?
var normal_id = [String]()
var student_name = [String]()
var student_attendance = [String]()
//Sent Data
var n_id = ""
var stu_name = ""
#IBAction func backButton(sender: AnyObject) {
self.dismissViewControllerAnimated(true, completion: nil )
}
override func viewDidLoad() {
super.viewDidLoad()
studentlistTable.delegate = self
studentlistTable.dataSource = self
let prefs:NSUserDefaults = NSUserDefaults.standardUserDefaults()
username = prefs.objectForKey("user")as! String
classID = prefs.objectForKey("ClassID")as! String
branchID = prefs.objectForKey("BranchID")as! String
self.loadIndicator.startAnimating()
dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), { () -> Void in
self.loadList()
dispatch_async(dispatch_get_main_queue(), { () -> Void in
self.loadIndicator.stopAnimating()
self.studentlistTable.reloadData()
})
});
}
override func viewDidAppear(animated: Bool) {
}
func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return normal_id.count
}
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
//This method to define each cell at Table View
let cell = self.studentlistTable.dequeueReusableCellWithIdentifier("cell", forIndexPath: indexPath) as! teacherAttendanceCell
cell.studentNameLabel.text = student_name[indexPath.row]
return cell
}
func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
// Get Cell Label
let currentCell = studentlistTable.cellForRowAtIndexPath(indexPath) as! teacherAttendanceCell!
student_attendance[indexPath.row] = currentCell.status
}
#IBAction func saveButton(sender: AnyObject) {
print(student_attendance) // this only to ensure from the final array before sending to server
}
func loadList()
{
var normallink = "myurl"
normallink = normallink + "?classid=" + self.classID! + "&branchid=" + self.branchID!
print(normallink)
var studentParentURL:NSURL = NSURL (string: normallink)!
let data = NSData(contentsOfURL: studentParentURL)!
do {
let json = try NSJSONSerialization.JSONObjectWithData(data, options: .AllowFragments)
if let alldata = json["data"] as? [[String: AnyObject]] {
for onedata in alldata {
if let no_id = onedata["id"] as? String {
normal_id.append(no_id)
}
if let s_name = onedata["studentName"] as? String {
student_name.append(s_name)
}
}
}
} catch {
print("Error Serializing JSON: \(error)")
}
if(normal_id.count != 0)
{
for i in 1...self.normal_id.count
{
self.student_attendance.append("0")
}
}
print(normal_id.count)
print(student_name.count)
}
}
Cell Code :
class teacherAttendanceCell: UITableViewCell {
#IBOutlet weak var studentNameLabel: UILabel!
#IBOutlet weak var attendSwitch: UISwitch!
var status:String = ""
override func awakeFromNib() {
super.awakeFromNib()
if(attendSwitch.on)
{
status = "1"
print("ON")
}
else{
status = "0"
print("OFF")
}
attendSwitch.addTarget(self, action: "stateChanged:", forControlEvents: UIControlEvents.ValueChanged)
}
func stateChanged(switchState: UISwitch) {
if switchState.on {
status = "1"
print("ON")
} else {
status = "0"
print("OFF")
}
}
override func setSelected(selected: Bool, animated: Bool) {
super.setSelected(selected, animated: animated)
}
#IBAction func attendSwitchChanged(sender: AnyObject) {
}
}
Updated:
Main View Controller:
import UIKit
class teacherAttendanceVC: UIViewController , UITableViewDataSource,UITableViewDelegate,CellInfoDelegate {
#IBOutlet weak var studentlistTable: UITableView!
#IBOutlet weak var loadIndicator: UIActivityIndicatorView!
var username:String?
var classID: String?
var branchID: String?
var normal_id = [String]()
var student_name = [String]()
var student_attendance = [String]()
//Sent Data
var n_id = ""
var stu_name = ""
#IBAction func backButton(sender: AnyObject) {
self.dismissViewControllerAnimated(true, completion: nil )
}
override func viewDidLoad() {
super.viewDidLoad()
studentlistTable.delegate = self
studentlistTable.dataSource = self
let prefs:NSUserDefaults = NSUserDefaults.standardUserDefaults()
username = prefs.objectForKey("user")as! String
classID = prefs.objectForKey("ClassID")as! String
branchID = prefs.objectForKey("BranchID")as! String
self.loadIndicator.startAnimating()
dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), { () -> Void in
self.loadList()
dispatch_async(dispatch_get_main_queue(), { () -> Void in
self.loadIndicator.stopAnimating()
self.studentlistTable.reloadData()
})
});
}
override func viewDidAppear(animated: Bool) {
}
func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return normal_id.count
}
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
//This method to define each cell at Table View
let cell = self.studentlistTable.dequeueReusableCellWithIdentifier("cell", forIndexPath: indexPath) as! teacherAttendanceCell
cell.delegate = self
cell.studentNameLabel.text = student_name[indexPath.row]
student_attendance[indexPath.row] = cell.status
//print(student_attendance.count)
//let currentCell = studentlistTable.cellForRowAtIndexPath(indexPath) as! teacherAttendanceCell!
// student_attendance.append(cell.status)
return cell
}
func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
// Get Cell Label
// let currentCell = studentlistTable.cellForRowAtIndexPath(indexPath) as! teacherAttendanceCell!
// student_attendance[indexPath.row] = currentCell.status
//print("OK Status here!" + String(student_attendance.count))
}
#IBAction func saveButton(sender: AnyObject) {
print(student_attendance)
}
func loadList()
{
var normallink = "mylinkhere"
normallink = normallink + "?classid=" + self.classID! + "&branchid=" + self.branchID!
print(normallink)
var studentParentURL:NSURL = NSURL (string: normallink)!
let data = NSData(contentsOfURL: studentParentURL)!
do {
let json = try NSJSONSerialization.JSONObjectWithData(data, options: .AllowFragments)
if let alldata = json["data"] as? [[String: AnyObject]] {
for onedata in alldata {
if let no_id = onedata["id"] as? String {
normal_id.append(no_id)
}
if let s_name = onedata["studentName"] as? String {
student_name.append(s_name)
}
}
}
} catch {
print("Error Serializing JSON: \(error)")
}
if(normal_id.count != 0)
{
for i in 1...self.normal_id.count
{
self.student_attendance.append("0")
}
}
print(normal_id.count)
print(student_name.count)
}
func processThatNumber(theStatus: String) {
print("out : \(theStatus)")
}
}
protocol CellInfoDelegate {
func processThatNumber(theStatus: String)
}
Cell View Controller:
import UIKit
class teacherAttendanceCell: UITableViewCell{
#IBOutlet weak var studentNameLabel: UILabel!
#IBOutlet weak var attendSwitch: UISwitch!
var status:String = ""
var delegate: CellInfoDelegate?
override func awakeFromNib() {
super.awakeFromNib()
if(attendSwitch.on)
{
status = "1"
print("ON")
}
else{
status = "0"
print("OFF")
}
attendSwitch.addTarget(self, action: "stateChanged:", forControlEvents: UIControlEvents.ValueChanged)
}
func stateChanged(switchState: UISwitch) {
if switchState.on {
status = "1"
print("ON")
} else {
status = "0"
print("OFF")
}
if let delegate = self.delegate {
delegate.processThatNumber(self.status)
}
}
override func setSelected(selected: Bool, animated: Bool) {
super.setSelected(selected, animated: animated)
}
#IBAction func attendSwitchChanged(sender: AnyObject) {
}
}
There are few ways to do this: using closure or delegate, but I preferred to use delegate.
Create a delegate for your teacherAttendanceCell cell like in this answer https://stackoverflow.com/a/25792213/2739795
Make you teacherAttendanceVC conforms the delegate
Each time when cellForRowAtIndexPath calls set cell.delegate = self. Also return the cell into your delegate method
Call method from delegate insidestateChanged
And when delegate method calls you can get an index if switched cell
tableView.indexPathForCell(cellFromParam)

Populating tableView with firebase database

i am trying to populate my tableView with firebase database.
Here is the code:-
import UIKit
import Firebase
class FriendsListViewController: UIViewController , UITableViewDataSource, UITableViewDelegate{
#IBOutlet weak var friendsListTableView: UITableView!
let ref = FIRDatabase.database().reference()
var FIRControllerClassHandle : FIRControllerClass = FIRControllerClass()
var imageCell = [UIImage]()
var username = [String]()
var userDesc = [String]()
override func viewWillAppear(animated: Bool) {
super.viewWillAppear(animated)
friendsListTableView.alpha = 0
friendsListTableView.delegate = self
friendsListTableView.dataSource = self
populateTable({
self.friendsListTableView.reloadData()
})
}
func populateTable(completionBlock : (() -> Void)){
FIRControllerClassHandle.retrieveFriendListDatabase { (userIdA) in
for a in 1 ... userIdA.count-1 {
repeat {
self.FIRControllerClassHandle.retrieveStorageForFriendListCell(userIdA[a] as! String, completion: { (image) in
print("image transferred in the friendlist block : \(image)")
print("user id in friendList : \(userIdA[a])")
self.imageCell.append(image)
})
self.FIRControllerClassHandle.retrieveDatabaseForFriendListCell(userIdA[a] as! String, completion: { (profile) in
self.username.append((profile["username"] as? String)!)
self.userDesc.append((profile["briefDecription"] as? String)!)
completionBlock()
})
} while(a <= userIdA.count-1)
}
}
}
func numberOfSectionsInTableView(tableView: UITableView) -> Int {
return 1
}
func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
print("username count in the no of rows : \(username.count)")
return username.count ?? 0
}
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
print("username in cellForIndexpath : \(self.username)")
let cell = friendsListTableView.dequeueReusableCellWithIdentifier("friendListCell") as! FriendsListTableViewCell
cell.friendListProfileName.text = username[indexPath.row]
cell.friendListProfileDescription.text = userDesc[indexPath.row]
cell.friendListProfilePicture.image = imageCell[indexPath.row]
return cell
}
#IBAction func backBtnAction(sender: UIButton) {
let homePageScene = self.navigationController?.storyboard?.instantiateViewControllerWithIdentifier("HomePageFeedViewControllerVC_ID") as! HomePageFeedViewController
self.navigationController?.pushViewController(homePageScene, animated: true)
}
}
This is running an infinite loop,
userIdA is the array in which i have stored all of my user.uid
self.FIRControllerClassHandle.retrieveStorageForFriendListCell is function in the separate FIRController class that is returning the profile picture of the user
similarly FIRControllerClassHandle.retrieveDatabaseForFriendListCell for retrieving database
How would i go around this?
You have two loops nested within in each other:
for a in 1 ... userIdA.count-1 {
repeat{
// ...
}while(a <= userIdA.count-1)
}
In the inner loop, a does not change, and therefore it will loop forever. I guess you just want the other loop.

Why does my tableview return the same Parse image for every cell?

I have my tableview returning titles, their descriptions and now I am trying to return images. It currently returns only one image for all of my cells. Is this because I'm storing it in a UIImage?
Here's my code:
import UIKit
import Parse
import Bolts
import ParseUI
class YourEvents: UIViewController, UITableViewDataSource, UITableViewDelegate {
#IBOutlet weak var tableView: UITableView!
var currentuser = PFUser.currentUser()?.username
//array
var testArray = [String]()
var testdecr = [String]()
var image = UIImage()
// var imagestored = UIImage()
override func viewDidLoad() {
super.viewDidLoad()
var query = PFQuery(className:"Companies")
let pUserName = PFUser.currentUser()?["username"] as? String
query.whereKey("createdby", equalTo:"\(pUserName)")
// let runkey = query.orderByAscending("companyname")
query.findObjectsInBackgroundWithBlock{
(objects: [PFObject]?, error: NSError?) -> Void in
if error == nil {
//do something with the found objects
if let objects = objects as [PFObject]! {
for object in objects {
let load = object.objectForKey("companyname") as! String
self.testArray .append(load)
print(self.testArray)
let load2 = object.objectForKey("companydescription") as! String
self.testdecr.append(load2)
print(self.testdecr)
if let userImageFile = object["imagefile"] as? PFFile {
userImageFile.getDataInBackgroundWithBlock {
(imageData: NSData?, error: NSError?) -> Void in
if error == nil {
if let imageData = imageData {
self.image = UIImage(data:imageData)!
print("done!")
self.do_table_refresh()
}
}
}
}
}
}
} else {
//log details of failure
print("Error: \(error!) \(error?.userInfo) ")
}
}
// reload UIViewController and UITabkeView
sleep(3)
do_table_refresh()
}
func do_table_refresh () {
dispatch_async(dispatch_get_main_queue(), {
self.tableView.reloadData()
return
})
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
func numberOfSectionsInTableView(tableView: UITableView) -> Int {
return 1
}
func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return testArray.count
}
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCellWithIdentifier("yourstartups", forIndexPath: indexPath) as! YourStartupsCell
cell.lbTitle!.text = self.testArray[indexPath.row]
cell.lbDescription!.text = self.testdecr[indexPath.row]
cell.logo!.image = self.image
return cell
}
}
I would recommend making an array of PFImage objects, and then in your table view delegate method you can simply access the element at the current row in your index path. Right now your method to get the data is being called once and therefore setting your image to the last fetched object, but since the tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) is being called each time a cell is loaded, you need to keep the images in an array, as you are doing with the text labels.

trying to implement the uisearchcontroller but its not giving any search result

import UIKit
class MasterTableViewController: UITableViewController, PFLogInViewControllerDelegate, PFSignUpViewControllerDelegate, UISearchBarDelegate, UISearchResultsUpdating {
//approches for uisearchbar
var searchNotes: [PFObject] = [PFObject]()
var notesSearchController = UISearchController()
var searchActive: Bool = false
// creating array for holding ojects
var noteObjects: NSMutableArray! = NSMutableArray()
var v = 0
override func viewDidLoad() {
super.viewDidLoad()
self.notesSearchController = UISearchController(searchResultsController: nil)
self.notesSearchController.dimsBackgroundDuringPresentation = true
self.notesSearchController.searchResultsUpdater = self
// Configure the search controller's search bar
self.notesSearchController.searchBar.placeholder = "Search for a user"
self.notesSearchController.searchBar.sizeToFit()
self.notesSearchController.searchBar.delegate = self
self.definesPresentationContext = true
// Set the search controller to the header of the table
self.tableView.tableHeaderView = self.notesSearchController.searchBar
print("check")
}
override func viewDidAppear(animated: Bool) {
super.viewDidAppear(animated)
if v == 0 {
self.fetchAllObjectsFromLocalDataStore()
//self.fetchAllObjects()
}
}
// fetching data from local datastore and from parse
func fetchAllObjectsFromLocalDataStore(){
let query: PFQuery = PFQuery(className: "Sinhgad")
query.orderByDescending("createdAt")
query.fromLocalDatastore()
query.findObjectsInBackgroundWithBlock { ( objects, error) -> Void in
if (error == nil) {
let temp: NSArray = objects as NSArray!
self.noteObjects = temp.mutableCopy() as! NSMutableArray
self.tableView.reloadData()
}else {
print(error!.userInfo)
}
}
}
func fetchAllObjects(){
let query: PFQuery = PFQuery(className: "Sinhgad")
query.orderByDescending("createdAt")
query.findObjectsInBackgroundWithBlock { (objects, error) -> Void in
if (error == nil) {
PFObject.pinAllInBackground(objects, block: nil )
self.fetchAllObjectsFromLocalDataStore()
// self.tableView.reloadData()
} else {
print(error?.userInfo)
}
}
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
// MARK: - Table view data source
override func numberOfSectionsInTableView(tableView: UITableView) -> Int {
// #warning Incomplete implementation, return the number of sections
return 1
}
override func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
// #warning Incomplete implementation, return the number of rows
if (self.notesSearchController.active) {
return self.searchNotes.count
} else {
return self.noteObjects.count
}}
override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let cell = self.tableView.dequeueReusableCellWithIdentifier("cell", forIndexPath: indexPath) as! MasterTableViewCell
if (self.notesSearchController.active && self.searchNotes.count > indexPath.row) {
// bind data to the search results cell
let object : PFObject = self.noteObjects.objectAtIndex(indexPath.row) as! PFObject
cell.MasterTitleLabel?.text = object["Title"] as? String
cell.MasterTextLabel.text = object["Fstory"] as? String
cell.MasterTimeLabel.text = object["Time"] as? String
cell.MasterLocationLabel.text = object["Location"] as? String
return cell
} else {
let object : PFObject = self.noteObjects.objectAtIndex(indexPath.row) as! PFObject
cell.MasterTitleLabel?.text = object["Title"] as? String
cell.MasterTextLabel.text = object["Fstory"] as? String
cell.MasterTimeLabel.text = object["Time"] as? String
cell.MasterLocationLabel.text = object["Location"] as? String
return cell
}}
override func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
if (self.notesSearchController.active && self.searchNotes.count > 0) {
// Segue or whatever you want
self.performSegueWithIdentifier("openStory", sender: self)
} else {
self.performSegueWithIdentifier("openStory", sender: self)
}
}
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
let upcoming: AddNoteTableViewController = segue.destinationViewController as! AddNoteTableViewController
if (segue.identifier == "openStory"){
let indexPath = self.tableView.indexPathForSelectedRow!
let object: PFObject = self.noteObjects.objectAtIndex(indexPath.row) as! PFObject
upcoming.object = object
self.tableView.deselectRowAtIndexPath(indexPath, animated: true)
}
}
#IBAction func btnReload(sender: AnyObject) {
fetchAllObjects()
}
override func tableView(tableView: UITableView, canEditRowAtIndexPath indexPath: NSIndexPath) -> Bool {
return true
}
override func tableView(tableView: UITableView, commitEditingStyle editingStyle: UITableViewCellEditingStyle, forRowAtIndexPath indexPath: NSIndexPath) {
if (editingStyle == UITableViewCellEditingStyle.Delete ){
let object : PFObject = self.noteObjects.objectAtIndex(indexPath.row) as! PFObject
// the below for deleting the selected cell's object from server's database
// object.deleteInBackground()
//the below for deleting the selected cell's object from localstorage
object.unpinInBackground()
self.noteObjects.removeObjectAtIndex(indexPath.row)
tableView.deleteRowsAtIndexPaths([indexPath], withRowAnimation: UITableViewRowAnimation.Automatic)
}
}
// MARK: - Parse Backend methods
func loadSearchUsers(searchString: String) {
let query: PFQuery = PFQuery(className: "Sinhgad")
query.orderByDescending("createdAt")
// Filter by search string
query.whereKey("Notes", containsString: searchString)
self.searchActive = true
query.findObjectsInBackgroundWithBlock {(objects, error) -> Void in
if (error == nil) {
self.searchNotes.removeAll(keepCapacity: false)
self.searchNotes += objects as [PFObject]!
self.tableView.reloadData()
} else {
// Log details of the failure
print("search query error: \(error) \(error!.userInfo)")
}
self.searchActive = false
}
}
// MARK: - Search Bar Delegate Methods
func searchBarSearchButtonClicked(searchBar: UISearchBar) {
// Force search if user pushes button
let searchString: String = searchBar.text!.lowercaseString
if (searchString != "") {
loadSearchUsers(searchString)
}
}
func searchBarCancelButtonClicked(searchBar: UISearchBar) {
// Clear any search criteria
searchBar.text = ""
// Force reload of table data from normal data source
}
// MARK: - UISearchResultsUpdating Methods
// This function is used along with UISearchResultsUpdating for dynamic search results processing
// Called anytime the search bar text is changed
func updateSearchResultsForSearchController(searchController: UISearchController) {
let searchString: String = searchController.searchBar.text!.lowercaseString
if (searchString != "" && !self.searchActive) {
loadSearchUsers(searchString)
}
}
}
The above code is for retrieving stored objects from parse's server and from local storage and show them in table view.
Everything is working fine but I am trying to implement searchbar for adding searching function into my app. The problem is that when am running the app its showing the searchbar but when interacting with search bar its moving to upside and disappearing and when am typing anything.
I am not getting any search result and in NSLog am getting this :
2015-12-03 16:43:48.769 Notes[1015:56944] Attempting to load the view of a view controller while it is deallocating is not allowed and may result in undefined behavior (<UISearchController: 0x7ff2d48165a0>)
I know am missing something and its not the right way to achieve that function.
If somebody knows how to do it correctly or what am missing than please let me know , thanks and sorry if the way am asking question is not proper !
i just figured out that my 'searchNotes' var of Pfobject have nothing i mean its empty ! for that i tried
cell.MasterTitleLabel?.text = searchNotes["Title"] as! String
but its giving error
cannot subscript a value of type '[PFObject]' with an index of type 'string'
i know its because i declared searchNotes as
searchNotes [PFObject] = [PFObject]()
i should do it something like
searchNotes PFObject = PFObject()
but when am doing this its giving so many errors please help if somebody's know how to fix this
Maybe you shouldn't user PFObject directly.
Can you use another class instead of PFObject
private class object {
var mTitle : String!
var mStory : String!
var mTime : String!
var mLocation : String!
}
And use your code here
let obj : object = object()
obj.mTitle = PFObject["title"];
...etc

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