Concurrent UIAlertController dismiss and segue
I suspect that the answer is no, but thought I would ask anyway.
Is there a way to have a segue between view controllers begin before a UIAlertController's action sheet has completed its dismissal? (The action sheet drives which view controller should be pushed.)
I have placed breakpoints and print statements in the UIAlertAction's action handler block and it appears that this block is not invoked until after the action sheet has been dismissed.
I have done similar with the completion handler of the present call that raised the action sheet. Again, not invoked until (surprise) the sheet has been dismissed.
Here is my code (without the experiments mentioned above)
func startNewPuzzle(required:Bool=false)
{
let selection = UIAlertController(title:"New Puzzle",
message:"How would you like to start the puzzle",
preferredStyle:.actionSheet)
selection.addAction( UIAlertAction(title:"manual",style:.default) { _ in
self.performSegue(withIdentifier: "showNewPuzzle", sender: self)
} )
selection.addAction( UIAlertAction(title:"random",style:.default) { _ in
self.performSegue(withIdentifier: "showRandomPuzzle", sender: self)
} )
selection.addAction( UIAlertAction(title:"scanned",style:.default) { _ in
self.performSegue(withIdentifier: "showScanPuzzle", sender: self)
} )
if !required { selection.addAction( UIAlertAction(title:"cancel",style:.cancel) ) }
self.present(selection,animated: false)
}
ios segue
asked Dec 28 '18 at 0:17
MikeMayer67
173311
add a comment |
I suspect that the answer is no, but thought I would ask anyway.
Is there a way to have a segue between view controllers begin before a UIAlertController's action sheet has completed its dismissal? (The action sheet drives which view controller should be pushed.)
I have placed breakpoints and print statements in the UIAlertAction's action handler block and it appears that this block is not invoked until after the action sheet has been dismissed.
I have done similar with the completion handler of the present call that raised the action sheet. Again, not invoked until (surprise) the sheet has been dismissed.
Here is my code (without the experiments mentioned above)
func startNewPuzzle(required:Bool=false)
{
let selection = UIAlertController(title:"New Puzzle",
message:"How would you like to start the puzzle",
preferredStyle:.actionSheet)
selection.addAction( UIAlertAction(title:"manual",style:.default) { _ in
self.performSegue(withIdentifier: "showNewPuzzle", sender: self)
} )
selection.addAction( UIAlertAction(title:"random",style:.default) { _ in
self.performSegue(withIdentifier: "showRandomPuzzle", sender: self)
} )
selection.addAction( UIAlertAction(title:"scanned",style:.default) { _ in
self.performSegue(withIdentifier: "showScanPuzzle", sender: self)
} )
if !required { selection.addAction( UIAlertAction(title:"cancel",style:.cancel) ) }
self.present(selection,animated: false)
}
ios segue
asked Dec 28 '18 at 0:17
MikeMayer67
173311
Interestingly, the behavior I'm seeing appears to be exactly opposite of the behavior observed in stackoverflow.com/questions/40367565/…
– MikeMayer67
Dec 28 '18 at 14:18
add a comment |
I suspect that the answer is no, but thought I would ask anyway.
Is there a way to have a segue between view controllers begin before a UIAlertController's action sheet has completed its dismissal? (The action sheet drives which view controller should be pushed.)
I have placed breakpoints and print statements in the UIAlertAction's action handler block and it appears that this block is not invoked until after the action sheet has been dismissed.
I have done similar with the completion handler of the present call that raised the action sheet. Again, not invoked until (surprise) the sheet has been dismissed.
Here is my code (without the experiments mentioned above)
func startNewPuzzle(required:Bool=false)
{
let selection = UIAlertController(title:"New Puzzle",
message:"How would you like to start the puzzle",
preferredStyle:.actionSheet)
selection.addAction( UIAlertAction(title:"manual",style:.default) { _ in
self.performSegue(withIdentifier: "showNewPuzzle", sender: self)
} )
selection.addAction( UIAlertAction(title:"random",style:.default) { _ in
self.performSegue(withIdentifier: "showRandomPuzzle", sender: self)
} )
selection.addAction( UIAlertAction(title:"scanned",style:.default) { _ in
self.performSegue(withIdentifier: "showScanPuzzle", sender: self)
} )
if !required { selection.addAction( UIAlertAction(title:"cancel",style:.cancel) ) }
self.present(selection,animated: false)
}
ios segue
asked Dec 28 '18 at 0:17
MikeMayer67
173311
I suspect that the answer is no, but thought I would ask anyway.
Is there a way to have a segue between view controllers begin before a UIAlertController's action sheet has completed its dismissal? (The action sheet drives which view controller should be pushed.)
I have placed breakpoints and print statements in the UIAlertAction's action handler block and it appears that this block is not invoked until after the action sheet has been dismissed.
I have done similar with the completion handler of the present call that raised the action sheet. Again, not invoked until (surprise) the sheet has been dismissed.
Here is my code (without the experiments mentioned above)
func startNewPuzzle(required:Bool=false)
{
let selection = UIAlertController(title:"New Puzzle",
message:"How would you like to start the puzzle",
preferredStyle:.actionSheet)
selection.addAction( UIAlertAction(title:"manual",style:.default) { _ in
self.performSegue(withIdentifier: "showNewPuzzle", sender: self)
} )
selection.addAction( UIAlertAction(title:"random",style:.default) { _ in
self.performSegue(withIdentifier: "showRandomPuzzle", sender: self)
} )
selection.addAction( UIAlertAction(title:"scanned",style:.default) { _ in
self.performSegue(withIdentifier: "showScanPuzzle", sender: self)
} )
if !required { selection.addAction( UIAlertAction(title:"cancel",style:.cancel) ) }
self.present(selection,animated: false)
}
ios segue
ios segue
asked Dec 28 '18 at 0:17
MikeMayer67
173311
asked Dec 28 '18 at 0:17
MikeMayer67
173311
edited Dec 28 '18 at 14:20
asked Dec 28 '18 at 0:17
MikeMayer67
173311
asked Dec 28 '18 at 0:17
MikeMayer67
173311
asked Dec 28 '18 at 0:17
MikeMayer67
173311
173311
Interestingly, the behavior I'm seeing appears to be exactly opposite of the behavior observed in stackoverflow.com/questions/40367565/…
– MikeMayer67
Dec 28 '18 at 14:18
add a comment |
Interestingly, the behavior I'm seeing appears to be exactly opposite of the behavior observed in stackoverflow.com/questions/40367565/…
– MikeMayer67
Dec 28 '18 at 14:18
Interestingly, the behavior I'm seeing appears to be exactly opposite of the behavior observed in stackoverflow.com/questions/40367565/…
– MikeMayer67
Dec 28 '18 at 14:18
Interestingly, the behavior I'm seeing appears to be exactly opposite of the behavior observed in stackoverflow.com/questions/40367565/…
– MikeMayer67
Dec 28 '18 at 14:18
add a comment |
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Interestingly, the behavior I'm seeing appears to be exactly opposite of the behavior observed in stackoverflow.com/questions/40367565/…
– MikeMayer67
Dec 28 '18 at 14:18