Display user's post on a new ViewController - ios

Question

I'm working on an app that let's users post, like and comment, so as part of my comment implementation, I'm trying to display the user's post, so you are able to comment on it. I am using a UITableView that is the main timeline and it displays all of the posts users have made, so what I'm trying to do is that when a user clicks on a cell, it displays the post of that cell so you are able to comment on it, but I'm having trouble displaying it.
This is the code that I have for that implementation so far, so what am I missing?
Is there anything else that I can do to be able to display the selected post in a viewController after the user clicks on the cell?
import UIKit
import Parse
class DetailViewContoller: UIViewController, UITableViewDelegate, UITextViewDelegate {
#IBOutlet weak var usernameLabel: UILabel!
#IBOutlet weak var postLabel: UILabel!
#IBOutlet weak var commentTableView: UITableView!
var post: PFObject?
var commentView: UITextView?
var footerView: UIView?
var contentHeight: CGFloat = 0
var comments: [String]?
let FOOTERHEIGHT : CGFloat = 50;
override func viewDidLoad() {
super.viewDidLoad()
commentTableView.delegate = self
/* Setup the keyboard notifications */
NSNotificationCenter.defaultCenter().addObserver(self, selector: "keyBoardWillShow:", name: UIKeyboardWillShowNotification, object: nil)
NSNotificationCenter.defaultCenter().addObserver(self, selector: "keyBoardWillHide:", name: UIKeyboardWillHideNotification, object: nil)
if(post?.objectForKey("comments") != nil) {
comments = post?.objectForKey("comments") as? [String]
}
println(post)
println(post?.objectForKey("content"))
self.postLabel.text = post?.objectForKey("content") as? String
}
func keyBoardWillShow(notification: NSNotification) {
var info:NSDictionary = notification.userInfo!
var keyboardSize = (info[UIKeyboardFrameBeginUserInfoKey] as! NSValue).CGRectValue()
var keyboardHeight:CGFloat = keyboardSize.height - 40
var animationDuration:CGFloat = info[UIKeyboardAnimationDurationUserInfoKey] as! CGFloat
var contentInsets: UIEdgeInsets = UIEdgeInsetsMake(0.0, 0.0, keyboardHeight, 0.0);
self.commentTableView.contentInset = contentInsets
self.commentTableView.scrollIndicatorInsets = contentInsets
}
func keyBoardWillHide(notification: NSNotification) {
self.commentTableView.contentInset = UIEdgeInsetsZero
self.commentTableView.scrollIndicatorInsets = UIEdgeInsetsZero
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
}
func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
if let count = comments?.count {
return count
}
return 0
}
func numberOfSectionsInTableView(tableView: UITableView) -> Int {
return 1
}
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let cell = commentTableView.dequeueReusableCellWithIdentifier("commentCell", forIndexPath: indexPath) as! CommentTableViewCell
cell.commentLabel?.text = comments![indexPath.row]
return cell
}
func tableView(tableView: UITableView, heightForFooterInSection section: Int) -> CGFloat {
if self.footerView != nil {
return self.footerView!.bounds.height
}
return FOOTERHEIGHT
}
func tableView(tableView: UITableView, viewForFooterInSection section: Int) -> UIView? {
footerView = UIView(frame: CGRect(x: 0, y: 0, width: commentTableView.bounds.width, height: FOOTERHEIGHT))
footerView?.backgroundColor = UIColor(red: 243.0/255, green: 243.0/255, blue: 243.0/255, alpha: 1)
commentView = UITextView(frame: CGRect(x: 10, y: 5, width: commentTableView.bounds.width - 80 , height: 40))
commentView?.backgroundColor = UIColor.whiteColor()
commentView?.textContainerInset = UIEdgeInsetsMake(5, 5, 5, 5)
commentView?.layer.cornerRadius = 2
commentView?.scrollsToTop = false
footerView?.addSubview(commentView!)
let button = UIButton(frame: CGRect(x: commentTableView.bounds.width - 65, y: 10, width: 60 , height: 30))
button.setTitle("Reply", forState: UIControlState.Normal)
button.backgroundColor = UIColor(red: 0/0.0, green: 179/255.0, blue: 204/255.0, alpha: 100.0/100.0)
button.layer.cornerRadius = 5
button.addTarget(self, action: "reply", forControlEvents: UIControlEvents.TouchUpInside)
footerView?.addSubview(button)
commentView?.delegate = self
return footerView
}
//Hide keyboard after touching background
override func touchesBegan(touches: Set<NSObject>, withEvent event: UIEvent) {
self.view.endEditing(true)
}
//remaining characters
func textView(textView: UITextView, shouldChangeTextInRange range: NSRange, replacementText text: String) -> Bool{
if (text == "\n") {
textView.resignFirstResponder()
}
return true
}
func reply() {
post?.addObject(commentView!.text, forKey: "comments")
post?.saveInBackground()
if let tmpText = commentView?.text {
comments?.append(tmpText)
}
commentView?.text = ""
println(comments?.count)
self.commentView?.resignFirstResponder()
self.commentTableView.reloadData()
}
}

Answer 1

I don't see anything in your code that actually fires when you click on a table cell. The way I would modify your code is to:
Implement override func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {}
Use indexpath to determine the object you want to display detail for
Create a new viewcontroller for the detail, pass the object to it and then push it
A more elegant (but complex, in some ways) way of doing things is to implement PFQueryTableViewController and then use the function objectAtIndexPath() to retrieve the relevant object and display detail