Firebase function freezes app in xcode7, but works in xcode6.4 - ios

Question

For some reason this code works perfectly in xcode6.4, but when switching to xcode7 it freezes the app.
What I am trying to do is pull the post information on a user's feed and display it on a tableview. I am able to pull the information from Firebase, but the app freezes before it displays on the tableview.
EDIT: The tableview works when I do not have any constraints or autolayout. It seems to not work when I try to have dynamic cell heights.
func getRadarData() {
let url = "https://(insert appname).firebaseio.com/users/" + currentUser + "/postsReceived/"
let targetRef = Firebase(url: url)
targetRef.observeEventType(.ChildAdded, withBlock: {
snapshot in
print("child")
if let found = self.posts.map({ $0.key }).indexOf(snapshot.key) {
let obj = self.posts[found]
print(obj)
print(found)
self.posts.removeAtIndex(found)
}
let postsUrl = "https://(insert appname).firebaseio.com/posts/" + snapshot.key
let postsRef = Firebase(url: postsUrl)
var updatedAt = snapshot.value["updatedAt"] as? NSTimeInterval
var endAt = snapshot.value["endAt"] as? NSTimeInterval
if updatedAt == nil {
updatedAt = 0
}
if endAt == nil {
endAt = 0
}
postsRef.observeSingleEventOfType(.Value, withBlock: { snapshot in
if let key = snapshot.key
{if let content = snapshot.value["content"] as? String {
if let creator = snapshot.value["creator"] as? String {
if let createdAt = snapshot.value["createdAt"] as? NSTimeInterval {
let userurl = "https://(insert appname).firebaseio.com/users/" + (creator)
let userRef = Firebase(url: userurl)
userRef.observeSingleEventOfType(.Value, withBlock: { snapshot in
if let username = snapshot.value["username"] as? String {
let updatedDate = NSDate(timeIntervalSince1970: (updatedAt!/1000))
let createdDate = NSDate(timeIntervalSince1970: (createdAt/1000))
let endedDate = NSDate(timeIntervalSince1970: (endAt!))
let post = Post(content: content, creator: creator, key: key, createdAt: updatedDate, name: username, joined: true, messageCount: 0, endAt: endedDate)
self.posts.append(post)
// Sort posts in descending order
self.posts.sortInPlace({ $0.createdAt.compare($1.createdAt) == .OrderedDescending })
self.tableView.reloadData()
}
})
}
}
}
}
})
})
}
Here is my code for my tableview where I used autolayout on the textView and nameLabel
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let cell: RadarTableViewCell = tableView.dequeueReusableCellWithIdentifier("radarCell", forIndexPath: indexPath) as! RadarTableViewCell
let creator: (String) = posts[indexPath.row].creator
let key = posts[indexPath.row].key
let radarContent: (AnyObject) = posts[indexPath.row].content
cell.textView.selectable = false
cell.textView.text = radarContent as? String
cell.textView.userInteractionEnabled = false
cell.textView.selectable = true
let radarCreator: (AnyObject) = posts[indexPath.row].name
cell.nameLabel.text = radarCreator as? String
return cell

Answer 1

The issue was that I had initial text in my textView. I deleted it on my Storyboard and my app works now.
Found the solution here: Why does a previously working Xcode project hang up in Xcode 7 when presenting a new UITableviewController Subclass?