I need horizontal images in collectionview, which is inside every tableview cell. The problem I am facing is tableview gets loaded easily, but collectionview doesn't get loaded before tableview cells, because tableview loads very quickly, and hence the array for collectionview gets changed.
The code I am using for the whole view, is -
import UIKit
class ViewController: UIViewController,UITableViewDataSource,UITableViewDelegate,UICollectionViewDataSource,UICollectionViewDelegateFlowLayout,NSURLConnectionDelegate {
#IBOutlet var tbl_data: UITableView!
var mutableData: NSMutableData!
var response: NSURLResponse!
var connection: NSURLConnection!
var thedata:NSArray!
var ary_OF_collectionView:NSArray!
override func viewDidLoad() {
super.viewDidLoad()
connection_GetPeopleList()
thedata = NSArray()
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
func numberOfSectionsInTableView(tableView: UITableView) -> Int {
// Return the number of sections.
return 1
}
func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return thedata.count
}
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell
{
//println("INdex===\(indexPath.row)")
let cell = tableView.dequeueReusableCellWithIdentifier("dTableViewCell", forIndexPath: indexPath) as! dTableViewCell
var c_snippet:String = ""
if let checkC_snip:AnyObject = thedata.objectAtIndex(indexPath.row).valueForKey("c_snippet")
{
c_snippet = checkC_snip as! String
}
var getImageArray:NSArray = (thedata.objectAtIndex(indexPath.row).valueForKey("images") as? NSArray)!
cell.lbl_like.text = c_snippet
cell.co_v.tag = indexPath.row
if(getImageArray.count > 0)
{
if(getImageArray.count == 1)
{
var getimagePath:String = getImageArray.objectAtIndex(0) as! String
if(!getimagePath.isEmpty)
{
ary_OF_collectionView = getImageArray
}else
{
ary_OF_collectionView = NSArray()
}
}else
{
ary_OF_collectionView = getImageArray
}
}else
{
ary_OF_collectionView = NSArray()
}
cell.co_v.dataSource = self
cell.co_v.delegate = self
cell.co_v.reloadData()
cell.selectionStyle = UITableViewCellSelectionStyle.None
return cell
}
func numberOfSectionsInCollectionView(collectionView: UICollectionView) -> Int {
return 1
}
func collectionView(collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
return ary_OF_collectionView.count
}
func collectionView(collectionView: UICollectionView, cellForItemAtIndexPath indexPath: NSIndexPath) -> UICollectionViewCell {
let cell = collectionView.dequeueReusableCellWithReuseIdentifier("CollectionViewCell", forIndexPath: indexPath) as! CollectionViewCell
var getImageUrl:String! = ary_OF_collectionView.objectAtIndex(indexPath.row) as! String
println(getImageUrl)
// This is image loader From == https://github.com/natelyman/SwiftImageLoader
ImageLoader.sharedLoader.imageForUrl(getImageUrl, completionHandler:{(image: UIImage?, url: String) in
cell.img.image = image
})
//cell.img.image = UIImage(named: ) as UIImage!
return cell
}
func tableView(tableView: UITableView, willDisplayCell cell: UITableViewCell, forRowAtIndexPath indexPath: NSIndexPath)
{
println("INinininin===\(indexPath.row)")
// var cell:dTableViewCell = cell as! dTableViewCell
// [cell setCollectionViewDataSourceDelegate:self index:indexPath.row];
}
func scrollViewDidScroll(scrollView: UIScrollView) {
println(scrollView)
// println("INinininin===\(scrollView.tag)")
}
func connection_GetPeopleList()
{
let urlPath: String = "http://carbonchase.com/v1.1/get_jives.php?user_id=3221128362&at=0&newsfeeds&count=10"
println("get_People List == \(urlPath)")
var escapedAddress = urlPath.stringByAddingPercentEncodingWithAllowedCharacters(NSCharacterSet.URLQueryAllowedCharacterSet())
var url: NSURL = NSURL(string: escapedAddress!)!
var request1: NSURLRequest = NSURLRequest(URL: url)
self.connection = NSURLConnection(request: request1, delegate: self, startImmediately: true);
connection.start()
}
func connection(connection: NSURLConnection!, didReceiveResponse response: NSURLResponse!) {
self.response = response
self.mutableData = NSMutableData()
}
func connection(connection: NSURLConnection!, didReceiveData data: NSData!) {
self.mutableData.appendData(data)
}
func connectionDidFinishLoading(connection: NSURLConnection!)
{
if let jsonResult: NSArray = NSJSONSerialization.JSONObjectWithData(self.mutableData, options: nil, error:nil) as? NSArray {
thedata = jsonResult
self.tbl_data.reloadData();
self.tbl_data.delegate=self;
self.tbl_data.dataSource=self;
}
}
func connection(connection: NSURLConnection, didFailWithError error: NSError) {
println("\(error)")
}
}// END
EDITED
CollectionView is not working
Related
Im new to swift and im trying to figure out a way to select multiple images and pass them as array in a API request.I tried to use DKImagePickerController, in which im able to select multiple images and even preview them but i have no idea how to pass them to an api as an array.
The code is as follows:
import UIKit
class CameraTabViewController: UIViewController,UICollectionViewDataSource, UICollectionViewDelegate{
override func viewDidLoad() {
super.viewDidLoad()
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
#IBAction func saveCamBtn(_ sender: Any) {
let parent = self.parent as! DiaryEntryViewController
parent.CameraView.isHidden = true
}
#IBAction func selectPhotoBtn(_ sender: Any) {
let pickerController = DKImagePickerController()
pickerController.defaultSelectedAssets = self.assets
pickerController.didCancel = { ()
}
pickerController.didSelectAssets = { [unowned self] (assets: [DKAsset]) in
self.updateAssets(assets: assets)
}
self.present(pickerController, animated: true)
}
var pickerController: DKImagePickerController!
var assets: [DKAsset]?
#IBOutlet var previewView: UICollectionView!
func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int{
return self.assets?.count ?? 0
}
func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
let asset = self.assets![indexPath.row]
var cell: UICollectionViewCell?
var imageView: UIImageView?
if asset.isVideo {
cell = collectionView.dequeueReusableCell(withReuseIdentifier: "CellVideo", for: indexPath)
imageView = cell?.contentView.viewWithTag(1) as? UIImageView
} else {
cell = collectionView.dequeueReusableCell(withReuseIdentifier: "CellImage", for: indexPath)
imageView = cell?.contentView.viewWithTag(1) as? UIImageView
}
if let cell = cell, let imageView = imageView {
let layout = collectionView.collectionViewLayout as! UICollectionViewFlowLayout
let tag = indexPath.row + 1
cell.tag = tag
asset.fetchImageWithSize(layout.itemSize.toPixel(), completeBlock: { image, info in
if cell.tag == tag {
imageView.image = image
}
})
}
return cell!
}
func updateAssets(assets: [DKAsset]) {
self.assets = assets
self.previewView?.reloadData()
}
}
I'm having trouble passing data after run App.I'm pretty much trying to change a label from the previous view controller after selecting a table view cell
Could anyone help me go about there error?
view controller
class AircraftSearch: UIViewController ,SendbackDelegate{
#IBOutlet weak var Mabda: UIButton!
#IBOutlet weak var maghsad: UIButton!
#IBOutlet weak var labelcity: UILabel!
var Airurl = NSURL()
var ScrOrDstArray = [MabdaAndMaghsad]()
var origin = [String]() // save mabda
var purpose = [String]() // save maghsad
var sendDataToTableview = [String]()
override func viewDidLoad() {
super.viewDidLoad()
GetPassCity()
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
#IBAction func selectMabda(sender: AnyObject) {
sendDataToTableview = origin
performSegueWithIdentifier("SelectedCellSegue", sender: sender)
}
#IBAction func selectMaghsad(sender: AnyObject) {
sendDataToTableview = purpose
print(sendDataToTableview)
performSegueWithIdentifier("SelectedCellSegue", sender: sender)
}
func originAndpurpose() {
let dataCity = ScrOrDstArray
for i in dataCity{
if i.SrcOrDst == true{
origin.append(i.Name)
}else{
purpose.append(i.Name)
}
}
}
func GetPassCity(){
let actInd : UIActivityIndicatorView = UIActivityIndicatorView(frame: CGRectMake(0,0, 50, 50)) as UIActivityIndicatorView
actInd.center = self.view.center
actInd.hidesWhenStopped = true
actInd.activityIndicatorViewStyle = UIActivityIndicatorViewStyle.Gray
view.addSubview(actInd)
actInd.startAnimating()
NSURLSession.sharedSession().dataTaskWithURL(Airurl){ ( data ,response ,error) in
if error != nil{
print("A")
print(error!)
}else{
do{
//readin data from Server
let posts = try NSJSONSerialization.JSONObjectWithData(data!, options: NSJSONReadingOptions.MutableContainers) as! [[String:AnyObject]]
//save data
for post in posts{
var postCity:MabdaAndMaghsad?
if let Id = post["Id"] as? Int ,
let nameCity = post["Name"] as? String ,
let SrcOrDst = post["SrcOrDst"] as? Bool
{
postCity = MabdaAndMaghsad(ID: Id, Name: nameCity, SrcOrDst: SrcOrDst)
}
self.ScrOrDstArray.append(postCity!)
}
//===============
dispatch_async(dispatch_get_main_queue()){
actInd.stopAnimating()
self.originAndpurpose()
print(self.origin)
print("=======")
// print(self.purpose)
}
}catch let error as NSError{
print("B")
print(error)
}
}
}.resume()
}
func sendNameToPreviousVC(SelectCity: String) {
labelcity.text = SelectCity
}
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
if segue.identifier == "SelectedCellSegue" {
if let VC = segue.destinationViewController as? SelectedCity {
VC.toTake = sendDataToTableview
VC.delegate = self
}
}
}
}
and tableview Controller
import UIKit
protocol SendbackDelegate:class {
func sendNameToPreviousVC(City:String)
}
class SelectedCity: UITableViewController {
var toTake = [String]()
var selecteCity = String()
weak var delegate: SendbackDelegate? = nil
override func viewDidLoad() {
super.viewDidLoad()
}
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
return toTake.count ?? 0
}
override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCellWithIdentifier("stcell", forIndexPath: indexPath) as? mAndMCell
let nameCity = toTake[indexPath.row]
print(nameCity)
cell!.nameCityLabel.text = nameCity
return cell!
}
override func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath){
let indexPath = tableView.indexPathForSelectedRow!
let currentCell = tableView.cellForRowAtIndexPath(indexPath) as! mAndMCell!
selecteCity = currentCell.nameCityLabel!.text as String!
sendBackIdCity(selecteCity)
navigationController?.popViewControllerAnimated(true)
}
func sendBackIdCity(name: String){
self.delegate?.sendNameToPreviousVC(name)
}
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
if segue.identifier == "backCitySegue"{
var VCOne = segue.destinationViewController as? AircraftSearch
VCOne.delegate = self
}
}
}
error is line VCOne.delegate = self
error = Value of type 'AircraftSearch?' has no member 'delegate'
The line should probably be
self.delegate = VCOne
since self is the SelectedCity which has the delegate property and VCOne is of type AircraftSearch and therefore is a SendbackDelegate!
I have followed a tutorial of Vea software (https://www.veasoftware.com/tutorials/2015/6/27/uisearchcontroller-in-swift-xcode-7-ios-9-tutorial) to create a table view with search bar on xcode 7, ios 9. Now I need to select multiple rows from the table view by adding a checkmark on each row when selected, the problem is that when I use the search bar the checkmarks don't match the rows anymore..
Here's my code:
class SportSearchTableViewController: UITableViewController, UISearchResultsUpdating {
let appleProducts = ["Mac","iPhone","Apple Watch","iPad"]
var filteredAppleProducts = [String]()
var resultSearchController = UISearchController()
override func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
tableView.deselectRowAtIndexPath(indexPath,animated: true)
let selectedRow = tableView.cellForRowAtIndexPath(indexPath)!
if selectedRow.accessoryType == UITableViewCellAccessoryType.None {
selectedRow.accessoryType = UITableViewCellAccessoryType.Checkmark
selectedRow.tintColor = UIColor.blueColor()
} else {
selectedRow.accessoryType = UITableViewCellAccessoryType.None
}
}
override func viewDidLoad() {
super.viewDidLoad()
self.resultSearchController = UISearchController(searchResultsController: nil)
self.resultSearchController.searchResultsUpdater = self
self.resultSearchController.dimsBackgroundDuringPresentation = false
self.resultSearchController.searchBar.sizeToFit()
self.tableView.tableHeaderView = self.resultSearchController.searchBar
self.tableView.reloadData()
}
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 {
if (self.resultSearchController.active)
{
return self.filteredAppleProducts.count
}
else
{
return self.appleProducts.count
}
}
override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCellWithIdentifier("cell", forIndexPath: indexPath) as UITableViewCell?
if (self.resultSearchController.active)
{
cell!.textLabel?.text = self.filteredAppleProducts[indexPath.row]
return cell!
}
else
{
cell!.textLabel?.text = self.appleProducts[indexPath.row]
return cell!
}
}
func updateSearchResultsForSearchController(searchController: UISearchController)
{
self.filteredAppleProducts.removeAll(keepCapacity: false)
let searchPredicate = NSPredicate(format: "SELF CONTAINS[c] %#", searchController.searchBar.text!)
let array = (self.sportsList as NSArray).filteredArrayUsingPredicate(searchPredicate)
self.filteredAppleProducts = array as! [String]
self.tableView.reloadData()
}
Does anyone know how to fix that?
I'm trying to add an image on the very top of the first cell of a table view. How can i make the table view have a top margin? Right now, the image is just overlapping the tableview. I am trying to just get the table view to come down a little bit. I do not want to make it smaller or something like that. I just want to add a button to the top of the tableview.
//
// usersVC.swift
// CaastRun
//
// Created by Computer on 5/23/15.
// Copyright (c) 2015 Caast. All rights reserved.
//
import UIKit
class usersVC: UIViewController, UITableViewDataSource, UITableViewDelegate {
#IBOutlet weak var resultsTable: UITableView!
var resultsNameArray = [String]()
var resultsUserNameArray = [String]()
var resultsImageFiles = [PFFile]()
override func viewDidLoad() {
super.viewDidLoad()
let theWidth = view.frame.size.width
let theHeight = view.frame.size.height
resultsTable.frame = CGRectMake(0, 0, theWidth, theHeight)
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
override func viewDidAppear(animated: Bool) {
resultsNameArray.removeAll(keepCapacity: false)
resultsUserNameArray.removeAll(keepCapacity: false)
resultsImageFiles.removeAll(keepCapacity: false)
var query = PFUser.query()
query!.whereKey("username", notEqualTo: PFUser.currentUser()!.username!)
query!.findObjectsInBackgroundWithBlock {
(objects:[AnyObject]?, error:NSError?) -> Void in
if error == nil {
for object in objects! {
self.resultsNameArray.append(object.objectForKey("profileName") as! String)
self.resultsImageFiles.append(object.objectForKey("photo") as! PFFile)
self.resultsUserNameArray.append(object.objectForKey("username") as! String)
self.resultsTable.reloadData()
}
}
}
}
func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return resultsNameArray.count
}
func tableView(tableView: UITableView, heightForRowAtIndexPath indexPath: NSIndexPath) -> CGFloat {
return 64
}
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
var cell:usersCell = tableView.dequeueReusableCellWithIdentifier("Cell") as! usersCell
cell.profileLbl.text = self.resultsNameArray[indexPath.row]
cell.usernameLbl.text = self.resultsUserNameArray[indexPath.row]
var query = PFQuery(className: "follow")
query.whereKey("user", equalTo: PFUser.currentUser()!.username!)
query.whereKey("userToFollow", equalTo: cell.usernameLbl.text!)
query.countObjectsInBackgroundWithBlock {
(count:Int32, error:NSError?) -> Void in
if error == nil {
if count == 0 {
cell.followBtn.setTitle("Follow", forState: UIControlState.Normal)
} else {
cell.followBtn.setTitle("Following", forState: UIControlState.Normal)
}
}
}
self.resultsImageFiles[indexPath.row].getDataInBackgroundWithBlock {
(imageData:NSData?, error:NSError?) -> Void in
if error == nil {
let image = UIImage(data: imageData!)
cell.imgView.image = image
}
}
return cell
}
#IBOutlet weak var searchText: UITextField!
#IBAction func searchButton(sender: AnyObject) {
resultsNameArray.removeAll(keepCapacity: false)
resultsUserNameArray.removeAll(keepCapacity: false)
resultsImageFiles.removeAll(keepCapacity: false)
var query = PFUser.query()
query!.whereKey("username", notEqualTo: PFUser.currentUser()!.username!)
query!.whereKey("profileName", containsString: self.searchText.text)
query!.findObjectsInBackgroundWithBlock {
(objects:[AnyObject]?, error:NSError?) -> Void in
if error == nil {
for object in objects! {
self.resultsNameArray.append(object.objectForKey("profileName") as! String)
self.resultsImageFiles.append(object.objectForKey("photo") as! PFFile)
self.resultsUserNameArray.append(object.objectForKey("username") as! String)
self.resultsTable.reloadData()
}
}
}
}
}
I am not sure if I understand your question, if you are trying to have a margin between your table and the view try this:
Swift 3
self.tableView.contentInset = UIEdgeInsets(top: 20,left: 0,bottom: 0,right: 0)
Swift 2
self.tableView.contentInset = UIEdgeInsetsMake(20, 0, 0, 0);
I am making an instagram like app but i want the images to be able to swipe left or right for likes. I am using xcode with swift and also parse.this is what i have so far but for some reason im getting no reaction from the code it isnt working for me. How can i make the gesture recognizer work for me so that the image itself can be swiped left or right to receive or lose a point?
import UIKit
import Parse
class HomePage: UITableViewController {
var xFromCenter: CGFloat = 0
var images = [UIImage]()
var titles = [String]()
var imageFile = [PFFile]()
override func viewDidLoad() {
super.viewDidLoad()
println(PFUser.currentUser())
var query = PFQuery(className:"Post")
query.orderByDescending("createdAt")
query.findObjectsInBackgroundWithBlock {(objects: [AnyObject]?, error: NSError?) -> Void in
if error == nil {
println("Successfully retrieved \(objects!.count) scores.")
for object in objects! {
self.titles.append(object["Title"] as! String)
self.imageFile.append(object["imageFile"] as! PFFile)
self.tableView.reloadData()
}
} else {
// Log details of the failure
println(error)
}
}
var imageFile: UIImageView = UIImageView()
imageFile.contentMode = UIViewContentMode.ScaleAspectFit
self.view.addSubview(imageFile)
var gesture = UIPanGestureRecognizer(target: self, action: Selector("wasDragged:"))
imageFile.addGestureRecognizer(gesture)
imageFile.userInteractionEnabled = true
}
func wasDragged(gesture: UIPanGestureRecognizer) {
let translation = gesture.translationInView(self.view)
var label = gesture.view!
xFromCenter += translation.x
var scale = min(100 / abs(xFromCenter), 1)
label.center = CGPoint(x: label.center.x + translation.x, y: label.center.y + translation.y)
gesture.setTranslation(CGPointZero, inView: self.view)
var rotation:CGAffineTransform = CGAffineTransformMakeRotation(xFromCenter / 200)
var stretch:CGAffineTransform = CGAffineTransformScale(rotation, scale, scale)
label.transform = stretch
if gesture.state == UIGestureRecognizerState.Ended {
if label.center.x < 100 {
println("Not Chosen")
} else if label.center.x > self.view.bounds.width - 100 {
println("Chosen")
}
}
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
override func numberOfSectionsInTableView(tableView: UITableView) -> Int {
return 1
}
override func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return titles.count
}
override func tableView(tableView: UITableView, heightForRowAtIndexPath indexPath: NSIndexPath) -> CGFloat {
return 500
}
override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
var myCell:cell = self.tableView.dequeueReusableCellWithIdentifier("myCell") as! cell
myCell.rank.text = "21"
myCell.votes.text = "4012"
myCell.postDescription.text = titles[indexPath.row]
imageFile[indexPath.row].getDataInBackgroundWithBlock { (data, error) -> Void in
if let downloadedImage = UIImage(data: data!) {
myCell.postedImage.image = downloadedImage
myCell.postedImage.userInteractionEnabled = true
}
}
return myCell
}
}
how can i make the swiping work?