0
我遇到問題。我需要的是,當我按下按鈕時,這會自動刷新我的頁面,將新內容放入其中。可能發生這種情況時,我希望按鈕做一個圓形動畫。提前致謝。使用Parse刷新數據
class ViewControllerAvvisi: UIViewController, UITableViewDelegate, UITableViewDataSource, UITextFieldDelegate
{
var selfTable: NSMutableArray = NSMutableArray()
@IBOutlet weak var MessageTable: UITableView!
@IBOutlet weak var MessageTextField: UITextField!
@IBOutlet weak var SendMessage: UIButton!
var messagesArray:[String] = [String]()
override func viewDidLoad() {
super.viewDidLoad()
self.MessageTable.delegate = self
self.MessageTable.dataSource = self
self.MessageTable.delegate = self
let tapGesture: UITapGestureRecognizer = UITapGestureRecognizer(target: self, action: "TableViewTapped")
self.MessageTable.addGestureRecognizer(tapGesture)
func retrieveMessages() {
let query = PFQuery(className: "Message")
query.findObjectsInBackgroundWithBlock {
(remoteObjects: [PFObject]?, error: NSError?) -> Void in
self.messagesArray = [String]()
for messageObject in remoteObjects! {
let messageText: String? = (messageObject as PFObject) ["Text"] as? String
if messageText != nil {
self.messagesArray.append(messageText!)
}
}
self.MessageTable.reloadData()
}
}
retrieveMessages()
}
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let cell = self.MessageTable.dequeueReusableCellWithIdentifier("MessageCell")! as UITableViewCell
cell.textLabel?.text = self.messagesArray[indexPath.row]
return cell
}
func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return messagesArray.count
}
@IBAction func SendMessage(sender: AnyObject) {
self.MessageTable.endEditing(true)
let NewMessage: PFObject = PFObject (className: "Message")
NewMessage["Text"] = self.MessageTextField.text
self.MessageTextField.enabled = false
self.SendMessage.enabled = false
NewMessage.saveInBackgroundWithBlock { (success:Bool, NSError) -> Void in
if (success == true) {
NSLog("Message successfully saved")
}else{
NSLog("Message didn't save")
}
self.MessageTextField.enabled = true
self.SendMessage.enabled = true
self.MessageTextField.text = ""
}
}
@IBAction func Refresh(sender: AnyObject) {
}
}
您應該將調用移到循環外部的'self.MessageTable.reloadData()',但除此之外,一切看起來都很好。你必須在某處調用'retrieveMessages()'。你的問題是什麼。 – luk2302
問題是我需要在哪裏以及如何調用該函數,以便單元格可以顯示Parse的數據。 –
在不相關的說明中,您應該在命名變量時使用適當的iOS編程約定。所有實例變量都應以小寫字母開頭,例如var messagesArray:[String] = [String]() –