When using a UICollectionView with a lot of cells that have images in it, I'm getting this odd warning in the log whenever an offscreen cell is scrolled to be onscreen:
2015-11-06 15:50:20.777 MyApp[49415:13109991] [/BuildRoot/Library/Caches/com.apple.xbs/Sources/CoreUI_Sim/CoreUI-370.8/Bom/Storage/BOMStorage.c:517] <memory> is not a BOMStorage file
Here's the cell setup:
import UIKit
class FeaturedCell: UICollectionViewCell {
#IBOutlet weak var imageView: UIImageView!
#IBOutlet weak var activityIndicator: UIActivityIndicatorView!
private var xml: XMLIndexer? = nil
override func awakeFromNib() {
super.awakeFromNib()
// this enables the parallax type look
self.imageView.adjustsImageWhenAncestorFocused = true
self.imageView.clipsToBounds = false
}
func loadImageFromUrlString(str: String) {
if let url = NSURL(string: str) {
if let data = NSData(contentsOfURL: url){
let image = UIImage(data: data)
self.imageView.image = image
self.activityIndicator.stopAnimating();
}
}
}
func setXml(xml: XMLIndexer) {
self.xml = xml;
if let imageUrl: String = (xml["FullAd"].element?.text)! {
self.loadImageFromUrlString(imageUrl)
}
}
}
According to this thread this message is harmless.
Related
Im working on an app where a merchant can add a bunch of products into a persons tab.
After selecting the customer from a table view the user can see a list of products and the total amount which I'd like to save under that customers name for him to come pay later. I've done a lot of research about relationships in CoreData but have not found a way to save many items at once.
Here is a screenshot of the view controller showing the customer and the products to add to his tab.
Add to tab view controller
I've created the data models and all and everything works great just can't link the products to each customer. I want to be able to click on a customer and see all the products in his tab. I've spent weeks now trying to find an answer and its getting very frustrating. Just need to be able to save and retrieve the items and my app will be done.
Really looking forward to an answer!
import UIKit
import MapKit
import GoogleSignIn
import CoreData
class addToTabViewController: UIViewController {
// Data Arrays
var myCart = [Cart]()
var myCartUz: [Cart] = []
var selectedIndex: Int!
let context = (UIApplication.shared.delegate as! AppDelegate).persistentContainer.viewContext
var amount: String = ""
var transaction: String = ""
#IBOutlet weak var profilePicture: UIImageView!
#IBOutlet weak var customerName: UILabel!
#IBOutlet weak var phoneNumber: UILabel!
#IBOutlet weak var emailAddress: UILabel!
#IBOutlet weak var customerAddress: UILabel!
#IBOutlet weak var profileView: UIView!
#IBOutlet weak var map: MKMapView!
#IBOutlet weak var receiptView: UIView!
#IBOutlet weak var tableView: UITableView!
#IBOutlet weak var customerProfile: UIImageView!
#IBOutlet weak var customerProfileView: UIView!
#IBOutlet weak var totalAmount: UILabel!
#IBOutlet weak var merchantName: UILabel!
#IBOutlet weak var merchatEmail: UILabel!
// Variable
var customers: Cutomers!
override func viewDidLoad() {
super.viewDidLoad()
// Show data
configureEntryData(entry: customers)
fetchCartData()
totalAmount.text = amount
// Design parameters
hutzilopochtli()
}
// Info profile button
#IBAction func infoButton(_ sender: Any) {
profileView.isHidden = !profileView.isHidden
receiptView.isHidden = !receiptView.isHidden
customerProfileView.isHidden = !customerProfileView.isHidden
}
// Add to tab button
#IBAction func addToTabButton(_ sender: Any) {
}
// Show customer details
func configureEntryData(entry: Cutomers) {
let name = entry.name
let address = entry.address
let phone = entry.phoneNumber
let email = entry.email
customerName!.text = name
customerAddress!.text = address
phoneNumber!.text = phone
emailAddress!.text = email
self.title = name
let image = entry.profileicture as Data?
profilePicture!.image = UIImage(data: image!)
customerProfile!.image = UIImage(data: image!)
}
// Get cart data
func fetchCartData() {
do {
myCart = try context.fetch(Cart.fetchRequest())
myCartUz = myCart
DispatchQueue.main.async {
self.tableView.reloadData()
}
} catch {
}
merchantName?.text = GIDSignIn.sharedInstance().currentUser.profile.name
merchatEmail?.text = GIDSignIn.sharedInstance().currentUser.profile.email
}
// Design parameters function
func hutzilopochtli(){
profilePicture.roundMyCircle()
customerProfile.roundMyCircle()
profileView.layer.cornerRadius = 15
receiptView.layer.cornerRadius = 15
profileView.isHidden = true
map.layer.cornerRadius = 13
}
}
// Table view dataSource and delegates
extension addToTabViewController: UITableViewDataSource, UITableViewDelegate {
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return myCartUz.count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "discountCell", for: indexPath) as! discountTableViewCell
let price = myCartUz[indexPath.row].price
let xNSNumber = price as NSNumber
cell.productName?.text = myCartUz[indexPath.row].product
cell.amountLabel?.text = "IDR \(xNSNumber.stringValue)"
return cell
}
}
Here is the customer class
class constantCustomer: NSObject {
private class func getContext() -> NSManagedObjectContext {
let appDelegate = UIApplication.shared.delegate as! AppDelegate
return appDelegate.persistentContainer.viewContext
}
class func saveObject(customerId: String, name: String, phone: String, address: String, email: String, picture: NSData) -> Bool {
let context = getContext()
let entity = NSEntityDescription.entity(forEntityName: "Cutomers", in: context)
let managedObject = NSManagedObject(entity: entity!, insertInto: context)
managedObject.setValue(customerId, forKey: "customerID")
managedObject.setValue(NSDate(), forKey: "date")
managedObject.setValue(name, forKey: "name")
managedObject.setValue(phone, forKey: "phoneNumber")
managedObject.setValue(address, forKey: "address")
managedObject.setValue(email, forKey: "email")
managedObject.setValue(picture, forKey: "profileicture")
do {
try context.save()
return true
} catch {
return false
}
}
class func fetchObject() -> [Cutomers]? {
let context = getContext()
var myCustomers: [Cutomers]? = nil
let fetchRequest = NSFetchRequest<NSFetchRequestResult>(entityName: "Cutomers")
let sort = NSSortDescriptor(key: "date", ascending: true)
fetchRequest.sortDescriptors = [sort]
do {
myCustomers = try context.fetch(Cutomers.fetchRequest())
return myCustomers
} catch {
return myCustomers
}
}
}
Without knowing about the Customers class I can only create an example. This is for the saving process:
func saveCustomer(entry: Customers) {
let entity = NSEntityDescription.entity(forEntityName: "EntityName", in: viewContext)
let customer = Customers(entity: entity!, insertInto: viewContext)
// add data to your customer class
customer.price = price
for journalEntry in entry.entry {
/// Your class with the Relationship
let persistent = CustomersDetail(context: viewContext)
persistent.question = journalEntry.question
persistent.answer = journalEntry.answer
customer.addToRelationship(persistent)
}
/// do saving
do {
try viewContext.save()
} catch let error {
print(error.localizedDescription)
}
}
loading Customer for a specific CostumerName:
func loadCustomerData(customerName: String) -> Customers {
let fetch:NSFetchRequest<Customers> = Customers.fetchRequest()
fetch.predicate = NSPredicate(format: "customerName = %#", "\(customerName)")
var customer = [Customers]()
do {
customer = try viewContext.fetch(fetch)
} catch let error {
print(error.localizedDescription)
}
return customer
}
enter image description here
I am trying to implement Custom camera effect like:- Image
I Thought that this is achieve like this way
This type of functionality already implemented in one app which is available in App Store. here is the link enter link description here
I want to copy this app's camera functionality.
I have already implemented something like this.
I am using below code for achieved above functionality.
Into ViewController.swift class.
import UIKit
import AVFoundation
#available(iOS 10.0, *)
class ViewController: UIViewController
{
#IBOutlet weak var vc: UIView!
#IBOutlet weak var img: UIImageView!
override func viewDidLoad() {
super.viewDidLoad()
setupCamera()
}
override func viewWillAppear(_ animated: Bool) {
super.viewWillAppear(animated)
session.startRunning()
}
override func viewWillDisappear(_ animated: Bool) {
super.viewWillDisappear(animated)
session.stopRunning()
}
#IBOutlet fileprivate var previewView: PreviewView! {
didSet {
previewView.videoPreviewLayer.videoGravity = AVLayerVideoGravityResizeAspectFill
previewView.layer.cornerRadius = previewView.layer.frame.size.width/2
previewView.clipsToBounds = true
}
}
#IBOutlet fileprivate var imageView: UIImageView! {
didSet {
imageView.layer.cornerRadius = imageView.layer.frame.size.width/2
imageView.clipsToBounds = true
}
}
fileprivate let session: AVCaptureSession = {
let session = AVCaptureSession()
session.sessionPreset = AVCaptureSessionPresetPhoto
return session
}()
fileprivate let output = AVCaptureStillImageOutput()
}
#available(iOS 10.0, *)
extension ViewController {
func setupCamera() {
let backCamera = AVCaptureDevice.defaultDevice(withMediaType:
AVMediaTypeVideo)
guard let input = try? AVCaptureDeviceInput(device: backCamera) else {
fatalError("back camera not functional.") }
session.addInput(input)
session.addOutput(output)
previewView.session = session
}
}
// MARK: - #IBActions
#available(iOS 10.0, *)
private extension ViewController {
#IBAction func capturePhoto() {
if let videoConnection = output.connection(withMediaType: AVMediaTypeVideo) {
output.captureStillImageAsynchronously(from: videoConnection, completionHandler: { (CMSampleBuffer, Error) in
if let imageData = AVCaptureStillImageOutput.jpegStillImageNSDataRepresentation(CMSampleBuffer) {
if let cameraImage = UIImage(data: imageData) {
self.imageView.image = cameraImage
UIImageWriteToSavedPhotosAlbum(cameraImage, nil, nil, nil)
}
}
})
}
}
}
Also Create Preview Class and this class into UIView from storyboard file.
From above code I have achived this image.
I need to add any shape of image layer as a frame into UIView. ButI have no idea how to achieved this type of functionality.
So, Basically my task is, how to add any shape of image layer into UIView and after capture image how to save image with image layer, like Final Image clue image
I'm creating an app that plays a sound when a button is clicked. It consists of UIButton to play the sound, UIImageView to display the associated image, and another UIButton which I'm using like a label to describe the button. I want to be able to configure all three parameters so I can change them remotely from Firebase. So far I figured out how to change the label, but I want to be able to change the URL that the sound and image load from. Here is my code:
import UIKit
import Firebase
import AVKit
class FirebaseViewController: UIViewController, AVAudioPlayerDelegate {
//These variables are for my sound when I click a button
var firesound1 = AVPlayer()
var firesound2 = AVPlayer()
var firesound3 = AVPlayer()
//These outlets reference the labels(UIButton) and UIImageView in the storyboard
#IBOutlet weak var firelabel1: UIButton!
#IBOutlet weak var firelabel2: UIButton!
#IBOutlet weak var firelabel3: UIButton!
#IBOutlet weak var fireimage1: UIImageView!
#IBOutlet weak var fireimage2: UIImageView!
#IBOutlet weak var fireimage3: UIImageView!
func updateViewWithRCValues() {
//These remote config options allow me to change the text of the UIButton, which here I'm using like a UILabel
firelabel1.setTitle(buttonLabel1, for: .normal)
let buttonLabel2 = RemoteConfig.remoteConfig().configValue(forKey: "label2").stringValue ?? ""
firelabel2.setTitle(buttonLabel2, for: .normal)
let buttonLabel3 = RemoteConfig.remoteConfig().configValue(forKey: "label3").stringValue ?? ""
firelabel3.setTitle(buttonLabel3, for: .normal)
let url = RemoteConfig.remoteConfig().configValue(forKey: "url1").stringValue ?? ""
firelabel3.setTitle(buttonLabel3, for: .normal)
}
func setupRemoteConfigDefaults() {
let defaultValues = [
"label1": "" as NSObject,
"label2": "" as NSObject,
"label3": "" as NSObject
]
RemoteConfig.remoteConfig().setDefaults(defaultValues)
}
func fetchRemoteConfig() {
// Remove this before production!!
let debugSettings = RemoteConfigSettings(developerModeEnabled: true)
RemoteConfig.remoteConfig().configSettings = debugSettings!
RemoteConfig.remoteConfig().fetch(withExpirationDuration: 0) { [unowned self] (status, error) in guard error == nil else {
print ("Error fetching remote values: \(String(describing: error))")
return
}
print("Retrieved values from the cloud")
RemoteConfig.remoteConfig().activateFetched()
self.updateViewWithRCValues()
}
}
override func viewDidLoad() {
super.viewDidLoad()
setupRemoteConfigDefaults()
fetchRemoteConfig()
//This code loads an image from a url into a UIImageView. I want to be able to configure the url like a parameter so I can change the url from the firebase website.
let url = URL(string: "https://ichef-1.bbci.co.uk/news/976/media/images/83351000/jpg/_83351965_explorer273lincolnshirewoldssouthpicturebynicholassilkstone.jpg")
let task = URLSession.shared.dataTask(with: url!) { (data, response, error) in
if (error != nil)
{
print("ERROR")
}
else
{
var documentsDirectory: String?
var paths = NSSearchPathForDirectoriesInDomains(.documentDirectory, .userDomainMask, true)
if paths.count > 0
{
documentsDirectory = paths [0]
let savePath = documentsDirectory! + "/ImageOne"
FileManager.default.createFile(atPath: savePath, contents: data, attributes: nil)
DispatchQueue.main.async
{
self.fireimage1.image = UIImage(named: savePath)
}
}
}
}
task.resume()
}
//This code plays the sounds. I also want to be able to configure the url like a parameter.
#IBAction func soundpressed1(_ sender: Any) {
let sound1 = AVPlayerItem(url: URL(string: "https://firebasestorage.googleapis.com/v0/b/mlg-soundboard-2018-edition.appspot.com/o/hitmarker.mp3?alt=media&token=e5d342d6-4074-4c50-ad9d-f1e41662d9e9")!)
firesound1 = AVPlayer(playerItem: sound1)
firesound1.play()
}
override func didReceiveMemoryWarning() {
}
}
Basically I want to be able to swap out the URLs with Remote Config.
You can either create separate keys in Remote config for Text, Sound URL and Image URL.
Or you can create a key called button_config and supply all the three params in a JSON
button_config = {"text" : "My button label", "sound_url" : "https://foo.com/sound.mp3", "image_url" : "https://foo.com/image.png"}
I am struggling to comprehend how to cache images in my listview that I have fetched from Firebase. I have checked online and most of the solutions are somewhat different from the style of code I am writing so find it difficult to transfer over. Any solutions would be grateful for the class I have provided below.
class StaffListTableViewCell: UITableViewCell {
#IBOutlet weak var staffFirstAndLastName: UILabel!
#IBOutlet weak var JobTitle: UILabel!
#IBOutlet weak var staffImageView: UIImageView!
var databaseRef: DatabaseReference {
return Database.database().reference()
}
var storageRef: Storage {
return Storage.storage()
}
override func awakeFromNib() {
super.awakeFromNib()
// Initialization code
}
func configureCell(teacher: StaffListsSTRUCT) {
//this line of code helps sets the imageviews in the list view to nil before loading.
self.staffImageView.image = nil
self.staffFirstAndLastName.text = teacher.staffName
self.JobTitle.text = teacher.staffJobTitle
let imageURL = teacher.staffImageViewString!
self.storageRef.reference(forURL: imageURL).getData(maxSize: 1 * 1024 * 1024, completion: { (imgData,
error) in
if error == nil {
DispatchQueue.main.async {
if let data = imgData {
self.staffImageView.image = UIImage(data: data)
}
}
} else {
print(error!.localizedDescription)
}
})
}
}
I created a view to use as background and I would like to change its color when label text is greater or less than variable number. The script is okay but the color is not changing.
Thanks in advance.
import UIKit
class ViewController: UIViewController, UITextFieldDelegate {
#IBOutlet weak var localName: UITextField!
#IBOutlet weak var localNameLabel: UILabel!
#IBOutlet weak var localTemp: UILabel!
#IBAction func getData(sender: AnyObject) {
getWeatherData("http://api.openweathermap.org/data/2.5/weather?q=" + localName.text! + "")
}
#IBOutlet weak var fundo: UIView!
override func viewDidLoad() {
super.viewDidLoad()
getWeatherData("http://api.openweathermap.org/data/2.5/weather?q=London")
// Do any additional setup after loading the view, typically from a nib.
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
func getWeatherData(urlString: String){
let url = NSURL (string: urlString)
let task = NSURLSession.sharedSession().dataTaskWithURL(url!) { (data, response, error) in
dispatch_async(dispatch_get_main_queue(), {
self.setLabels(data!)
})
}
task.resume()
}
func setLabels(weatherData: NSData) {
do {
let json = try NSJSONSerialization.JSONObjectWithData(weatherData, options:NSJSONReadingOptions.MutableContainers) as! NSDictionary
print(json)
//localNameLabel.text = json[("name")] as? String
if let name = json[("name")] as? String {
localNameLabel.text = name
}
if let main = json[("main")] as? NSDictionary {
if let temp = main[("temp")] as? Double {
//convert kelvin to celsius
let ft = (temp - 273.15)
let myString = ft.description
localTemp.text = myString
self.changeColor()
}
}
} catch let error as NSError {
print(error)
}
var number : Float
func changeColor(){
number = 19.0
if(Float(localTemp.text!) < number){
fundo.backgroundColor = .blueColor()
}else{
fundo.backgroundColor = .orangeColor()
}
}
}
}
Edited to post the entire script
In your view controller you need to add UITextFieldDelegate which will allow you to access methods related to your text field. The top of your view controller should look like this:
class ViewController: UIViewController,UITextFieldDelegate //set delegate to class
You then need to set the delegate of your text field to self in viewDidLoad and add a target for when the text field changes:
override func viewDidLoad() {
super.viewDidLoad()
localTemp.delegate = self //set delegate to this vc
localTemp.addTarget(self, action: "textFieldDidChange:", forControlEvents: UIControlEvents.EditingChanged)
}
You can then implement this method which will run on every key press and you need to call your changeColor() method as above:
func textFieldDidChange(textField: UITextField) {
self.changeColor()
}