准备 segue 延迟。信息滞后但正在呈现
Prepare for segue delay. Information is lagging but being presented
我正在将 otherUserUid 和 otherUserFullName 推送到另一个视图控制器,但没有立即调用它。信息滞后,需要点击 2 次才能显示信息。
我认为 preparForSegue: 在 didSelectRowAtIndexPath 之前被调用:任何解决方案如何解决这个问题?
干杯!
override func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
self.performSegueWithIdentifier("jsqDirectory", sender: self)
let indexPath = tableView.indexPathForSelectedRow!
let currentCell = tableView.cellForRowAtIndexPath(indexPath)! as UITableViewCell
self.otherUserFullName = (currentCell.textLabel?.text)!
print(self.otherUserFullName)
self.otherUserUid = (currentCell.detailTextLabel?.text)!
print(self.otherUserUid)
}
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
if segue.identifier == "jsqDirectory" {
if let viewController = segue.destinationViewController as? JSQViewController{
viewController.senderDisplayName = self.fullName
viewController.senderId = self.firebase.authData.uid
viewController.otherUid = self.otherUserUid
viewController.otherUser = self.otherUserFullName
}
}
}
override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCellWithIdentifier("directoryCell") as UITableViewCell!
let directoryItem = items[indexPath.row]
cell.textLabel?.text = directoryItem.fullName
cell.detailTextLabel!.text = directoryItem.key
cell.detailTextLabel!.hidden = true
return cell
}
在 didSelectRowAtIndexPath 中你必须像这样在 Function 的末尾执行 segue..
let indexPath = tableView.indexPathForSelectedRow!
let currentCell = tableView.cellForRowAtIndexPath(indexPath)! as UITableViewCell
self.otherUserFullName = (currentCell.textLabel?.text)!
print(self.otherUserFullName)
self.otherUserUid = (currentCell.detailTextLabel?.text)!
print(self.otherUserUid)
self.performSegueWithIdentifier("jsqDirectory", sender: self)
我正在将 otherUserUid 和 otherUserFullName 推送到另一个视图控制器,但没有立即调用它。信息滞后,需要点击 2 次才能显示信息。
我认为 preparForSegue: 在 didSelectRowAtIndexPath 之前被调用:任何解决方案如何解决这个问题?
干杯!
override func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
self.performSegueWithIdentifier("jsqDirectory", sender: self)
let indexPath = tableView.indexPathForSelectedRow!
let currentCell = tableView.cellForRowAtIndexPath(indexPath)! as UITableViewCell
self.otherUserFullName = (currentCell.textLabel?.text)!
print(self.otherUserFullName)
self.otherUserUid = (currentCell.detailTextLabel?.text)!
print(self.otherUserUid)
}
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
if segue.identifier == "jsqDirectory" {
if let viewController = segue.destinationViewController as? JSQViewController{
viewController.senderDisplayName = self.fullName
viewController.senderId = self.firebase.authData.uid
viewController.otherUid = self.otherUserUid
viewController.otherUser = self.otherUserFullName
}
}
}
override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCellWithIdentifier("directoryCell") as UITableViewCell!
let directoryItem = items[indexPath.row]
cell.textLabel?.text = directoryItem.fullName
cell.detailTextLabel!.text = directoryItem.key
cell.detailTextLabel!.hidden = true
return cell
}
在 didSelectRowAtIndexPath 中你必须像这样在 Function 的末尾执行 segue..
let indexPath = tableView.indexPathForSelectedRow!
let currentCell = tableView.cellForRowAtIndexPath(indexPath)! as UITableViewCell
self.otherUserFullName = (currentCell.textLabel?.text)!
print(self.otherUserFullName)
self.otherUserUid = (currentCell.detailTextLabel?.text)!
print(self.otherUserUid)
self.performSegueWithIdentifier("jsqDirectory", sender: self)