我正在调用PFCloud函数,该函数返回用户信用卡的json响应,我想显示一些卡片数据。我有一个我试图追加的阵列而且它没有显示出来。我在viewDidLoad中调用了这个函数。
func loadCards(){
if let customer = PFUser.currentUser()?.objectForKey("stripe_customer_id") as? String {
PFCloud.callFunctionInBackground("listCards", withParameters: ["customerId": customer], block: { (success: AnyObject?, error: NSError?) -> Void in
if error != nil {
println(error)
}
else {
let responseString = success as? NSArray
if let cardToDisplay = responseString!.valueForKey("cardId") as? NSArray{
println(cardToDisplay)
self.displayCards.addObject(cardToDisplay)
}
self.tableView.reloadData()
}
})
}
}
// MARK: - Table view data source
override func numberOfSectionsInTableView(tableView: UITableView) -> Int {
// #warning Potentially incomplete method implementation.
// Return the number of sections.
return 1
}
override func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
// #warning Incomplete method implementation.
// Return the number of rows in the section.
println(self.displayCards.count)
return self.displayCards.count
}
override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
var cell: CardsTableViewCell = tableView.dequeueReusableCellWithIdentifier("cell", forIndexPath: indexPath) as! CardsTableViewCell
self.displayCards[indexPath.row] = cell.card.text!
return cell
}
以下是来自控制台的日志:
0
0
0
0
0
0
(
"card_16v8teBnRIkk4qBepmuz2Mlk",
"card_16ymjoBnRIkk4qBeirtCdYdn",
"card_16ymfzBnRIkk4qBebvP4wwNO",
"card_16ymfzBnRIkk4qBeoRUVccws",
"card_16ymaPBnRIkk4qBeK2ju6ckP",
"card_16ylqyBnRIkk4qBeffUN2bwo",
"card_16ylq3BnRIkk4qBePGngNz8H"
)
1
答案 0 :(得分:2)
您需要在主线程中重新加载te tableView。当你进入后台提出请求时,你需要这样做:
dispatch_async(dispatch_get_main_queue()) { () -> Void in
self.tableView.reloadData()
}
而不只是self.tableView.reloadData()
cardToDisplay
似乎是一个数组,因此将self.displayCards.addObject(cardToDisplay)
更改为self.displayCards = cardToDisplay
self.displayCards[indexPath.row] = cell.card.text!
中的cellForRowAtIndexPath
行应该反过来..您应该将文本设置为self.displayCards[indexPath.row]
。所以它应该是cell.card.text = self.displayCards[indexPath.row]