I am failing to pass data from UITableView to a UIViewController. Have tried several ways but failing. Getting this error
Thread 1: EXC_BAD_INSTRUCTION (code=EXC_I386_INVO)
when I run the project.
See the code below of what I have tried.
//Code on the UITableViewController
class ShonaHymnsUITableViewController: UITableViewController {
var hymns : [Hymns] = Hymns.fetchHymns()
//MARK: - UItableViewDataSource
override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return hymns.count
}
override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "hymnCell", for: indexPath) as! HymnsTableViewCell
let hymn = hymns[indexPath.row]
cell.hymn = hymn
return cell
}
// MARK: - NAVIGATION
override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
tableView.deselectRow(at: indexPath, animated: true)
self.performSegue(withIdentifier: "ShowHymnDetail", sender: indexPath)
}
override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
// TODO: Prepare for Hymn Detal segue
if segue.identifier == "ShowShonaHymnListing" {
let shonaHymnListingVC = segue.destination as! ShonaHymnsUITableViewController
shonaHymnListingVC.hymns = hymns
} else if segue.identifier == "ShowHymnDetail" {
let indexPath = tableView.indexPathForSelectedRow
let selectedHymn = hymns[(indexPath?.row)!]
let hymnDetailVC = segue.destination as! ShonaHymnsViewController
hymnDetailVC.hymn = selectedHymn
}
}
}
//Code on the ViewController that I want to receive the data
class ShonaHymnsViewController: UIViewController {
#IBOutlet weak var hymnNumber: UILabel!
#IBOutlet weak var hymnTitle: UILabel!
#IBOutlet weak var hymnDetail: UITextView!
var hymn: Hymns!
override func viewDidLoad() {
super.viewDidLoad()
hymnNumber.text = hymn.hymnNumber
hymnTitle.text = hymn.hymnTitle
hymnDetail.text = hymn.hymnDetail
}
}
This is a hymn book application and I expect the full hymn detail to be shown on the recipient view controller. See image for the setup of the app
Reverse order of
self.performSegue(withIdentifier: "ShowHymnDetail", sender: indexPath)
tableView.deselectRow(at: indexPath, animated: true)
for this
hymns[(indexPath?.row)!]
to have a valid value
Related
I am trying to retrieve selected item in tableView from ViewController which has a list from sqlite like checkmark selection. My FirstViewController have tableView and on clicking selective cell it opens ViewController to select items.
Once selection has been made I have to reload FirstViewController tableview. Actually I am trying to do but not accurately doing. Anybody help me please to select item and set in tableview. I am confused and not able to do that passing selection via segue.
My github project link is below:
My Project: https://github.com/MasamMahmood/SqliteDataList/tree/master/SqliteDataList
Reference: https://blog.apoorvmote.com/how-to-pass-selection-via-segue/
Updated One FirstViewController:
class FirstViewController: UIViewControlller, ListDelegate {
var selectedIndex: Int?
var selectedSection: Int?
//Click event for navigation from FirstViewController to SecondViewController
#IBAction func BackButtonAction(_ sender: Any) {
let vc = self.storyboard?.instantiateViewController(withIdentifier: "SecondViewController") as! SecondViewController
vc.delegate = self
self.navigationController?.pushViewController(vc, animated: true)
}
func listFunc(listValue: String) {
AppData?.sectionList?[selectedSection!].items?[selectedIndex!].textField = listValue
tableView.reloadData()
}
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
//Add these two line in your code
selectedIndex = indexPath.row
selectedSection = indexPath.section
}
}
Updated SecondViewController:
protocol ListDelegate {
func listFunc(listValue: String)
}
class SecondViewController: UIViewControlller {
var delegate: ListDelegate?
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
let indexPath = tableView.indexPathForSelectedRow
let currentCell = tableView.cellForRow(at: indexPath!)!
//print(currentCell.textLabel?.text as Any)
currentCell.accessoryType = .checkmark
delegate?.listFunc(listValue: currentCell.textLabel?.text ?? "")
self.navigationController?.popViewController(animated: true)
}
}
What you need is a delegate to communicate back to the FirstViewController. You can do that like so...
protocol ViewControllerDelegate: AnyObject {
func viewControllerDidMakeSelection(at index: Int)
}
class ViewController: UIViewController {
#IBOutlet weak var tableView: UITableView!
weak var delegate: ViewControllerDelegate?
override func viewDidLoad() {
super.viewDidLoad()
}
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
delegate?.viewControllerDidMakeSelection(at: indexPath.row)
}
}
class FirstViewController: UIViewController, ViewControllerDelegate {
#IBOutlet weak var tableView: UITableView!
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
let vc = self.storyboard?.instantiateViewController(withIdentifier: "ViewController") as! ViewController
vc.delegate = self
self.navigationController?.pushViewController(vc, animated: true)
}
func viewControllerDidMakeSelection(at index: Int) {
// This is where the magic happens
}
}
I have two custom table views. I need to pass first and second cell datas of DestinationTableView to first cell of MyCartTableView. How can I make transition between this two table view cells with outside of tableView.
I did tableView.indexPathForSelectedRow but this time I need to make with UIButtonoutside of tableView.
Below triggered with tableView cell.
override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
if segue.identifier == "cellForFoodSegue" {
if let destinationViewController = segue.destination as? DetailViewController
{
let indexPath = self.mainTableView.indexPathForSelectedRow!
var foodNameArray: String
var foodPriceArray: Double
foodNameArray = foodNames[indexPath.row]
foodPriceArray = foodPrices[indexPath.row].purchaseAmount
destinationViewController.detailFoodName = foodNameArray
destinationViewController.detailFoodPrice = foodPriceArray
}
}
}
I tried below code but I did not success passing data with button.
#IBAction func addBasket(_ sender: Any) {
}
override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
if(segue.identifier == "addToCartSegue") {
if let addToCartVC = segue.destination as? MyCartViewController {
let selectedCell = sender as! UITableViewCell
let indexPath = self.detailTableView.indexPath(for: selectedCell)
var foodNameArray: String
var foodPriceArray: Double
foodNameArray = foodNames[indexPath.row]
foodPriceArray = prices[indexPath.row].purchaseAmount
addToCartVC.fromDetailFoodName = foodNameArray
addToCartVC.fromDetailFoodPrice = prices[(indexPath?.row)!].purchaseAmount
}
}
}
Belows my MyViewController codes. Which is my added objects when tapped to addBasket button
class MyCartViewController: UIViewController, UITableViewDataSource, UITableViewDelegate {
var fromDetailFoodName: [String?] = []
var fromDetailFoodPrice = Double()
var nameLabel = MyCartTableViewCell()
#IBOutlet weak var myCartTableView: UITableView!
#IBOutlet weak var totalPriceLabel: UILabel!
let foodNames = [
"Hamburger big mac",
"Cemal",
"Emre",
"Memo"
]
//TODO-: Delete my cart
#IBAction func deleteMyCart(_ sender: Any) {
}
//TODO: - Approve my cart
#IBAction func approveCart(_ sender: Any) {
}
override func viewDidLoad() {
super.viewDidLoad()
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return section == 0 ? 1 : foodNames.count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "myCartCell", for: indexPath) as! MyCartTableViewCell
cell.myCartFoodNameLabel?.text = fromDetailFoodName.description
cell.myCartFoodPriceLabel?.text = "\(fromDetailFoodPrice)₺"
return cell
}
}
You should get the index path of the data you want to pass in func addBasket(_ sender: Any).
For example, you can save index path as a property that referenced in class.
class StartViewController: UIViewController, UITableViewDelegate, UITableViewDataSource {
var selectedIndexPath: IndexPath?
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
selectedIndexPath = indexPath
}
#IBAction func addBasket(_ sender: Any) {
if let indexPath = selectedIndexPath {
let destinationVC = MyCartViewController()
destinationVC.detailFoodName = foodNames[indexPath.row]
destinationVC.detailFoodPrice = foodPrices[indexPath.row].purchaseAmount
}
}
}
In MyCartViewController which is destination VC.
class MyCartViewController: UIViewController, UITableViewDataSource, UITableViewDelegate {
var fromDetailFoodNames: [String?] = []
var fromDetailFoodPrices: [Double?] = []
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
if indexPath.section == 1 && indexPath.last! <= fromDetailFoodPrices.indices.last! {
let cell = myCartTableView.dequeueReusableCell(withIdentifier: "myCartCell", for: indexPath) as! MyCartTableViewCell
let name = fromDetailFoodNames[indexPath.row]?.description ?? ""
let price = fromDetailFoodPrices[indexPath.row]
cell.myCartFoodNameLabel?.text = name
cell.myCartFoodPriceLabel?.text = "\(price)₺"
return cell
}
}
}
BTW, for better coding, you can implement OOP concept in your code. detailFoodName and detailFoodPrice should be in ONE object. Besides, var foodNameArray: String naming could be confusing. Rename it as var foodName: String would be better.
I want to pass the storage data contained in a TableView and pass it to another ViewController. My customCell has an UIImage and a String.
When the user press the cell I want to show a "detail view controller" with the UIImage and a label containing the info of the cell selected.
Here is my code:
import UIKit
class ViewController: UIViewController, UITableViewDataSource, UITableViewDelegate {
#IBOutlet weak var dataTableView: UITableView!
var myList = [dataList]()
var textToBeSent: String = ""
var selectedImage: UIImage?
var selectedLabel: String?
//Load Items To List
func loaditems(){
let item1 = dataList(photoList: UIImage.self(), itemDescription: "Descripcion Aqui")
let item2 = dataList(photoList: UIImage.self(), itemDescription: "Aqui tmb")
myList += [item1,item2]
}
//var list = ["Documento 1", "Documento 2", "Documento 3"]
override func viewDidLoad() {
super.viewDidLoad()
if let savedData = loadSavedItems(){
myList += savedData
} else {
loaditems()
}
//dataTableView.register(UITableViewCell.self, forCellReuseIdentifier: "reusablecell")
// Do any additional setup after loading the view, typically from a nib.
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int{
return myList.count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "prototype", for: indexPath) as! PrototypeCell
let itemsinCell = myList[indexPath.row]
cell.imageItem.image = itemsinCell.photoList
cell.itemDescription.text = String(itemsinCell.itemDescription)
return cell
}
func tableView(_ tableView: UITableView, commit editingStyle: UITableViewCellEditingStyle, forRowAt indexPath: IndexPath) {
if editingStyle == .delete{
myList.remove(at: indexPath.row)
dataTableView.reloadData()
}
saveToSavedData()
}
Here is the func where I want to pass the data of a certain cell.
The data is from a Swift file stored in a "DataList" using aDecoder NSCoder.
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
print("Row \(indexPath.row) selected")
selectedImage! = myList[indexPath.row].photoList
selectedLabel! = myList[indexPath.row].itemdescription
performSegue(withIdentifier: "selectedRowSegue", sender: myList[indexPath.row])
}
override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
if(segue.identifier == "selectedRowSegue"){
let chosenRowViewController = segue.destination as! chosenRowViewController
chosenRowViewController.image3 = selectedImage?.photoList
chosenRowViewController.label3 = selectedLabel?.itemDescription
}
}
Unwind a segue in order to fill up the cells with data from previous
ViewController:
//Unwinde Segue
#IBAction func unWindlToList(sender: UIStoryboardSegue){
if let sourceViewController = sender.source as? ProcessViewController, let item = sourceViewController.item{
let newIndexPath = IndexPath(row: myList.count, section: 0)
myList.append(item)
dataTableView.insertRows(at: [newIndexPath], with: .automatic)
}
saveToSavedData()
}
//Archive Data
func saveToSavedData(){
NSKeyedArchiver.archiveRootObject(myList, toFile: (dataList.fileFolder?.path)!)
}
//Unarchive Data
func loadSavedItems() -> [dataList]?{
return NSKeyedUnarchiver.unarchiveObject(withFile: (dataList.fileFolder?.path)!) as? [dataList]
}
}
class PrototypeCell: UITableViewCell {
#IBOutlet weak var itemDescription: UILabel!
#IBOutlet weak var imageItem: UIImageView!
}
just replace prepare(for segue: UIStoryboardSegue, sender: Any?) function with below code
override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
if(segue.identifier == "selectedRowSegue"), let list = sender as? dataList {
let chosenRowViewController = segue.destination as! chosenRowViewController
chosenRowViewController.image3 = list.photoList
chosenRowViewController.label3 = list.itemDescription
}
}
There are several things that stand out.
1- var myList = [dataList]() dataList is a Class, classes should be capitalized. It should be var myList = [DataList]()
2- You have this as a class property but it's not used anywhere in the code you posted so why did you add it and what is it's purpose? var textToBeSent: String = ""
3- You have these 2 class property variables
var selectedImage: UIImage?
var selectedLabel: String?
to hold the data from [myList] but you really don't need them because you can just access the data from [myList] using dot notation inside prepareForSegue (read the commented out code in prepareForSegue).
4- In prepareForSegue you have let chosenRowViewController = segue.destination as! chosenRowViewController. ChosenRowViewController is a class and it should be capitalized like so:
let chosenRowViewController = segue.destination as! ChosenRowViewController // it's capitalized after the as!
Here's the code a little cleaned up.
#IBOutlet weak var dataTableView: UITableView!
var myList = [DataList]()
func loaditems(){
let item1 = dataList(photoList: UIImage.self(), itemDescription: "Descripcion Aqui")
let item2 = dataList(photoList: UIImage.self(), itemDescription: "Aqui tmb")
myList.append(item1)
myList.append(item2)
}
override func viewDidLoad() {
super.viewDidLoad()
// everything you already have inside here...
}
// your tableView datasource methods...
5- Since your using prepareForSegue you don’t need didSelectRowAt indexPath
override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
if(segue.identifier == "selectedRowSegue"){
// get the indexPath for the selectedRow
let indexPath = tableView.indexPathForSelectedRow
let chosenRowViewController = segue.destination as! ChosenRowViewController
chosenRowViewController.image3 = myList[indexPath!.row].photoList // use dot notation to access the photoList property
chosenRowViewController.label3 = myList[indexPath!.row].itemDescription // use dot notation to access the itemDescription property
}
}
You have made a mistake in your didSelectRowAt, while calling performSegue you have to pass the controller which is the sender, in your case it is your current UIVIewController, so you have to write self as sender controller. So your corrected methog will look like below code snippet:
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
print("Row \(indexPath.row) selected")
selectedImage! = myList[indexPath.row].photoList
selectedLabel! = myList[indexPath.row]
performSegue(withIdentifier: "selectedRowSegue", sender: self)
}
I am trying to edit the table row cell. I have different tableViewController set up to display/edit the current events when they touch on the displayed events from initial tableViewController. Whenever I edit an event and hit save, it goes back to the main viewController where i am initially displaying my events, but it doesn't display the edited events. it keeps showing the original events.
Here is the portion of my main tableView file where i am displaying my events:
class EventsTable: UIViewController, UITableViewDataSource, UITableViewDelegate {
var tableData = ViewController()
#IBOutlet weak var table: UITableView!
#IBAction func saveToMainViewController (change:UIStoryboardSegue) {
let editViewController = change.source as! EditEventsTableViewController
let index = editViewController.index
let titleString = editViewController.editedTitle
tableData.eventsArray[index!].title = titleString
table.reloadData()
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
// #warning Incomplete implementation, return the number of rows
return tableData.eventsArray.count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "cell", for: indexPath) as! CustomeCell
cell.eventTitle.text = tableData.eventsArray[indexPath.row].title
cell.eventLocation.text = tableData.eventsArray[indexPath.row].location
cell.eventDateAndTime.text = tableData.eventsArray[indexPath.row].date
return cell
}
//function to delete cell and saves it
func tableView(_ tableView: UITableView, commit editingStyle: UITableViewCellEditingStyle, forRowAt indexPath: IndexPath) {
if editingStyle == .delete {
tableData.eventsArray.remove(at: indexPath.row)
table.reloadData()
let savedEvents = NSKeyedArchiver.archivedData(withRootObject: tableData.eventsArray)
UserDefaults.standard.set(savedEvents, forKey: "savedEvents")
UserDefaults.standard.synchronize()
}
}
override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
if segue.identifier == "edit" {
var path = table.indexPathForSelectedRow
let detailViewController = segue.destination as! EditEventsTableViewController
detailViewController.index = path?.row
detailViewController.eventsArray = tableData.eventsArray
}
}
Here is the other tableViewController where i edit my data
class EditEventsTableViewController: UITableViewController {
#IBOutlet weak var txtEditTitle: UITextField!
var index:Int!
var eventsArray = [Event]()
var editedTitle: String!
override func viewDidLoad() {
super.viewDidLoad()
txtEditTitle.text = eventsArray[index!].title
}
func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
if indexPath.section == 0 && indexPath.row == 0 {
txtEditTitle.becomeFirstResponder()
}
tableView.deselectRow(at: indexPath as IndexPath, animated: true)
}
override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
if segue.identifier == "save" {
editedTitle = txtEditTitle.text
}
}
}
incase you guys need a better look at the project,
download link for the project
Probably in EditEventsTableViewController you missed table view reloading?
override func viewDidLoad() {
super.viewDidLoad()
tableView.reloadData()
txtEditTitle.text = eventsArray[index!].title
}
It's unclear, where do you provide data for EditEventsTableViewController. Is it static table view, designed in storyboard?
I'm trying to pass just the image part of a struct (containing also two textFields, and another imageView I'd like to not pass).
Here is the tableViewController
import UIKit
class SentMemesTableViewController: UITableViewController {
var _tableView: UITableView!
var memeData: [Meme] = []
//calling memes from array in Delegate
let appDelegate = UIApplication.shared.delegate as! AppDelegate
var memes: [Meme] {
return appDelegate.memes
}
override func viewWillAppear(_ animated: Bool) {
tableView.reloadData()
}
override func viewDidLoad() {
super.viewDidLoad()
tableView.isScrollEnabled = true
}
override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
if segue.identifier == "MemeDetailViewController" ,
let nextScene = segue.destination as? MemeDetailViewController ,
let indexPath = tableView.indexPathForSelectedRow {
let selectedMeme = memes[indexPath.row].memedImage
nextScene.sentMemeView.image = Meme.memedImage
}
}
// MARK: - Table view data source
override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
//navigationController!.pushViewController(MemeDetailViewController, animated: true)
}
override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
// #warning Incomplete implementation, return the number of rows
return memes.count
}
// Here it is! -----
override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let tableViewCell = tableView.dequeueReusableCell(withIdentifier: "sentMemesTableView") as! MemeTableViewCell
let meme = memes[indexPath.row]
tableViewCell.tableViewImage.image = meme.memedImage
tableViewCell.tableViewLabel.text = "\(meme.topText)...\(meme.bottomText)"
return tableViewCell
}
// Override to support conditional editing of the table view.
override func tableView(_ tableView: UITableView, canEditRowAt indexPath: IndexPath) -> Bool {
// Return false if you do not want the specified item to be editable.
return true
}
// Override to support conditional rearranging of the table view.
override func tableView(_ tableView: UITableView, canMoveRowAt indexPath: IndexPath) -> Bool {
// Return false if you do not want the item to be re-orderable.
return false
}
func deleteMemesInTableViewCell(_ index: Int) {
let appDelegate = UIApplication.shared.delegate as! AppDelegate
appDelegate.memes.remove(at: index)
}
override func tableView(_ tableView: UITableView, commit editingStyle: UITableViewCellEditingStyle, forRowAt indexPath: IndexPath) {
if (editingStyle == UITableViewCellEditingStyle.delete) {
tableView.beginUpdates()
deleteMemesInTableViewCell(indexPath.row)
tableView.deleteRows(at: [indexPath], with: UITableViewRowAnimation.left)
tableView.endUpdates()
}
}
}
Here is the Meme and SentMemeView structs.
import Foundation
import UIKit
struct Meme {
let topText: String
let bottomText: String
let originalImage: UIImage
let memedImage: UIImage
}
struct SentMemeImageView {
var memedImageDetailVC: UIImageView
}
I can't find a way to call it successfully.
Here is the MemeDetailViewController. I need just for the sentMemeView to display the SentMemeImageView.
class MemeDetailViewController: UIViewController {
var meme = SentMemeImageView?.self
#IBOutlet weak var sentMemesBtn: UIBarButtonItem!
#IBOutlet weak var editBtn: UIBarButtonItem!
#IBOutlet weak var sentMemeView: UIImageView!
func displayMeme(_ meme: SentMemeImageView) {
}
#IBAction func launchMemeEditorViewController(_ sender: Any) {
_ = navigationController?.popViewController(animated: true)
}
//unwinding to the view before (the collectionView, or the tableView)
#IBAction func unwindVC(for unwindSegue: UIStoryboardSegue, towardsViewController subsequentVC: UIViewController) {
self.dismiss(animated: true, completion: nil)
}
}
First of all, sad to say that, your code is quite messed up:
You have with three different kinds of data sources, some are ignored, some you work with, but not in a consistent way:
data from the app delegate (deletion of data)
memeData property (display of data)
memes property (ignored)
You should really focus on where the data is stored and how to access it.
Secondly, you won't send views from one view controller to the other, but data. So rather use UIImage than UIImageView. So you'll hand in a SentMemeImage to the details controller.
I tried to clean up the code a little, but just to answer your explicit question. Please refactor it!
struct Meme {
let topText: String
let bottomText: String
let originalImage: UIImage
let memedImage: UIImage
}
struct SentMemeImage {
var memedImage: UIImage
}
class SentMemesTableViewController: UITableViewController {
var memeData: [Meme] = []
// ----8<---- snipp ----8<----
override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
if segue.identifier == "MemeDetailViewController" ,
let nextScene = segue.destination as? MemeDetailViewController ,
let indexPath = tableView.indexPathForSelectedRow {
let selectedMeme = memeData[indexPath.row]
let sentMemeImage = SentMemeImage(memedImage: selectedMeme.memedImage)
nextScene.meme = sentMemeImage
}
}
// ----8<---- snipp ----8<----
}
class MemeDetailViewController: UIViewController {
var meme:SentMemeImage?
#IBOutlet weak var sentMemesBtn: UIBarButtonItem!
#IBOutlet weak var editBtn: UIBarButtonItem!
#IBOutlet weak var sentMemeView: UIImageView!
func displayMeme() {
self.sentMemeView.image = self.meme?.memedImage
}
}