IBOutlet nil - button
up vote
-2
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I have a HomeController and a registerController. The HomeController is embedded in a navigation controller and is the root view controller. If I present the registerController modally in HomeController's ViewWillAppear:
let reg = UIStoryboard(name: "Main", bundle: nil).instantiateViewController(withIdentifier: "signup") as! RegisterController
reg.modalPresentationStyle = UIModalPresentationStyle.overCurrentContext
reg.modalTransitionStyle = UIModalTransitionStyle.flipHorizontal
reg.view.frame = self.view.frame
self.view.addSubview(reg.view)
There is no problem. BUT if I present it by pushing it on the navigation controller stack:
let v = RegisterController()
self.navigationController?.pushViewController(v, animated: true)
the app crashes and says the IBOutlet for the signUp button (which is in registerController) is nil. I've re-created the outlet and cleaned the project and restarted xcode and nothing has worked...
swift uinavigationcontroller uibutton iboutlet
asked Nov 20 at 6:24
user7804097
83110
add a comment |
up vote
-2
down vote
favorite
I have a HomeController and a registerController. The HomeController is embedded in a navigation controller and is the root view controller. If I present the registerController modally in HomeController's ViewWillAppear:
let reg = UIStoryboard(name: "Main", bundle: nil).instantiateViewController(withIdentifier: "signup") as! RegisterController
reg.modalPresentationStyle = UIModalPresentationStyle.overCurrentContext
reg.modalTransitionStyle = UIModalTransitionStyle.flipHorizontal
reg.view.frame = self.view.frame
self.view.addSubview(reg.view)
There is no problem. BUT if I present it by pushing it on the navigation controller stack:
let v = RegisterController()
self.navigationController?.pushViewController(v, animated: true)
the app crashes and says the IBOutlet for the signUp button (which is in registerController) is nil. I've re-created the outlet and cleaned the project and restarted xcode and nothing has worked...
swift uinavigationcontroller uibutton iboutlet
asked Nov 20 at 6:24
user7804097
83110
Can you post your viewWillAppear code here?
– iOS_Maccus
Nov 20 at 6:27
@HPM the first snippet of code is my VWA. that's the only code in it
– user7804097
Nov 20 at 6:29
1
Matt answered your question check it
– iOS_Maccus
Nov 20 at 6:31
add a comment |
up vote
-2
down vote
favorite
up vote
-2
down vote
favorite
I have a HomeController and a registerController. The HomeController is embedded in a navigation controller and is the root view controller. If I present the registerController modally in HomeController's ViewWillAppear:
let reg = UIStoryboard(name: "Main", bundle: nil).instantiateViewController(withIdentifier: "signup") as! RegisterController
reg.modalPresentationStyle = UIModalPresentationStyle.overCurrentContext
reg.modalTransitionStyle = UIModalTransitionStyle.flipHorizontal
reg.view.frame = self.view.frame
self.view.addSubview(reg.view)
There is no problem. BUT if I present it by pushing it on the navigation controller stack:
let v = RegisterController()
self.navigationController?.pushViewController(v, animated: true)
the app crashes and says the IBOutlet for the signUp button (which is in registerController) is nil. I've re-created the outlet and cleaned the project and restarted xcode and nothing has worked...
swift uinavigationcontroller uibutton iboutlet
asked Nov 20 at 6:24
user7804097
83110
I have a HomeController and a registerController. The HomeController is embedded in a navigation controller and is the root view controller. If I present the registerController modally in HomeController's ViewWillAppear:
let reg = UIStoryboard(name: "Main", bundle: nil).instantiateViewController(withIdentifier: "signup") as! RegisterController
reg.modalPresentationStyle = UIModalPresentationStyle.overCurrentContext
reg.modalTransitionStyle = UIModalTransitionStyle.flipHorizontal
reg.view.frame = self.view.frame
self.view.addSubview(reg.view)
There is no problem. BUT if I present it by pushing it on the navigation controller stack:
let v = RegisterController()
self.navigationController?.pushViewController(v, animated: true)
the app crashes and says the IBOutlet for the signUp button (which is in registerController) is nil. I've re-created the outlet and cleaned the project and restarted xcode and nothing has worked...
swift uinavigationcontroller uibutton iboutlet
swift uinavigationcontroller uibutton iboutlet
asked Nov 20 at 6:24
user7804097
83110
asked Nov 20 at 6:24
user7804097
83110
edited Nov 20 at 6:37
asked Nov 20 at 6:24
user7804097
83110
asked Nov 20 at 6:24
user7804097
83110
asked Nov 20 at 6:24
user7804097
83110
83110
Can you post your viewWillAppear code here?
– iOS_Maccus
Nov 20 at 6:27
@HPM the first snippet of code is my VWA. that's the only code in it
– user7804097
Nov 20 at 6:29
1
Matt answered your question check it
– iOS_Maccus
Nov 20 at 6:31
add a comment |
Can you post your viewWillAppear code here?
– iOS_Maccus
Nov 20 at 6:27
@HPM the first snippet of code is my VWA. that's the only code in it
– user7804097
Nov 20 at 6:29
1
Matt answered your question check it
– iOS_Maccus
Nov 20 at 6:31
Can you post your viewWillAppear code here?
– iOS_Maccus
Nov 20 at 6:27
Can you post your viewWillAppear code here?
– iOS_Maccus
Nov 20 at 6:27
@HPM the first snippet of code is my VWA. that's the only code in it
– user7804097
Nov 20 at 6:29
@HPM the first snippet of code is my VWA. that's the only code in it
– user7804097
Nov 20 at 6:29
1
1
Matt answered your question check it
– iOS_Maccus
Nov 20 at 6:31
Matt answered your question check it
– iOS_Maccus
Nov 20 at 6:31
add a comment |
1 Answer
1
active
oldest
votes
up vote
3
down vote
accepted
It’s not a “bug”. Your code is what’s at fault. It has nothing to do with pushing vs presenting. It’s that this line is wrong:
let v = RegisterController()
That creates a barebones view controller with no outlets hooked up. The outlets are hooked up in the storyboard instance of this class. Create the view controller from the storyboard as you did in the first code, and all will be well.
let v = UIStoryboard(name: "Main", bundle: nil).instantiateViewController(withIdentifier: "signup") as! RegisterController
answered Nov 20 at 6:28
matt
322k45519719
Thanks for the quick answer, I'll give it a try. But I'm using this same code (let v = HTPController() ) in the same file for HTPController and it works as expected though. It also has a button. What is wrong about this specific one?
– user7804097
Nov 20 at 6:32
@user7804097 That button probably isn't connected either.HTPControllerdoesn't crash because you have not used that button inviewDidAppearorviewDidLoad. Try pressing that button, it shouldn't do what it is supposed to do.
– Sweeper
Nov 20 at 6:34
@user7804097 It simply is impossible.
– Desdenova
Nov 20 at 6:35
Thanks for the explanation everyone. That makes perfect sense! I can't accept for another 3 minutes
– user7804097
Nov 20 at 6:38
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
up vote
3
down vote
accepted
It’s not a “bug”. Your code is what’s at fault. It has nothing to do with pushing vs presenting. It’s that this line is wrong:
let v = RegisterController()
That creates a barebones view controller with no outlets hooked up. The outlets are hooked up in the storyboard instance of this class. Create the view controller from the storyboard as you did in the first code, and all will be well.
let v = UIStoryboard(name: "Main", bundle: nil).instantiateViewController(withIdentifier: "signup") as! RegisterController
answered Nov 20 at 6:28
matt
322k45519719
Thanks for the quick answer, I'll give it a try. But I'm using this same code (let v = HTPController() ) in the same file for HTPController and it works as expected though. It also has a button. What is wrong about this specific one?
– user7804097
Nov 20 at 6:32
@user7804097 That button probably isn't connected either.HTPControllerdoesn't crash because you have not used that button inviewDidAppearorviewDidLoad. Try pressing that button, it shouldn't do what it is supposed to do.
– Sweeper
Nov 20 at 6:34
@user7804097 It simply is impossible.
– Desdenova
Nov 20 at 6:35
Thanks for the explanation everyone. That makes perfect sense! I can't accept for another 3 minutes
– user7804097
Nov 20 at 6:38
add a comment |
up vote
3
down vote
accepted
It’s not a “bug”. Your code is what’s at fault. It has nothing to do with pushing vs presenting. It’s that this line is wrong:
let v = RegisterController()
That creates a barebones view controller with no outlets hooked up. The outlets are hooked up in the storyboard instance of this class. Create the view controller from the storyboard as you did in the first code, and all will be well.
let v = UIStoryboard(name: "Main", bundle: nil).instantiateViewController(withIdentifier: "signup") as! RegisterController
answered Nov 20 at 6:28
matt
322k45519719
Thanks for the quick answer, I'll give it a try. But I'm using this same code (let v = HTPController() ) in the same file for HTPController and it works as expected though. It also has a button. What is wrong about this specific one?
– user7804097
Nov 20 at 6:32
@user7804097 That button probably isn't connected either.HTPControllerdoesn't crash because you have not used that button inviewDidAppearorviewDidLoad. Try pressing that button, it shouldn't do what it is supposed to do.
– Sweeper
Nov 20 at 6:34
@user7804097 It simply is impossible.
– Desdenova
Nov 20 at 6:35
Thanks for the explanation everyone. That makes perfect sense! I can't accept for another 3 minutes
– user7804097
Nov 20 at 6:38
add a comment |
up vote
3
down vote
accepted
up vote
3
down vote
accepted
It’s not a “bug”. Your code is what’s at fault. It has nothing to do with pushing vs presenting. It’s that this line is wrong:
let v = RegisterController()
That creates a barebones view controller with no outlets hooked up. The outlets are hooked up in the storyboard instance of this class. Create the view controller from the storyboard as you did in the first code, and all will be well.
let v = UIStoryboard(name: "Main", bundle: nil).instantiateViewController(withIdentifier: "signup") as! RegisterController
answered Nov 20 at 6:28
matt
322k45519719
It’s not a “bug”. Your code is what’s at fault. It has nothing to do with pushing vs presenting. It’s that this line is wrong:
let v = RegisterController()
That creates a barebones view controller with no outlets hooked up. The outlets are hooked up in the storyboard instance of this class. Create the view controller from the storyboard as you did in the first code, and all will be well.
let v = UIStoryboard(name: "Main", bundle: nil).instantiateViewController(withIdentifier: "signup") as! RegisterController
answered Nov 20 at 6:28
matt
322k45519719
answered Nov 20 at 6:28
matt
322k45519719
answered Nov 20 at 6:28
matt
322k45519719
answered Nov 20 at 6:28
matt
322k45519719
322k45519719
Thanks for the quick answer, I'll give it a try. But I'm using this same code (let v = HTPController() ) in the same file for HTPController and it works as expected though. It also has a button. What is wrong about this specific one?
– user7804097
Nov 20 at 6:32
@user7804097 That button probably isn't connected either.HTPControllerdoesn't crash because you have not used that button inviewDidAppearorviewDidLoad. Try pressing that button, it shouldn't do what it is supposed to do.
– Sweeper
Nov 20 at 6:34
@user7804097 It simply is impossible.
– Desdenova
Nov 20 at 6:35
Thanks for the explanation everyone. That makes perfect sense! I can't accept for another 3 minutes
– user7804097
Nov 20 at 6:38
add a comment |
Thanks for the quick answer, I'll give it a try. But I'm using this same code (let v = HTPController() ) in the same file for HTPController and it works as expected though. It also has a button. What is wrong about this specific one?
– user7804097
Nov 20 at 6:32
@user7804097 That button probably isn't connected either.HTPControllerdoesn't crash because you have not used that button inviewDidAppearorviewDidLoad. Try pressing that button, it shouldn't do what it is supposed to do.
– Sweeper
Nov 20 at 6:34
@user7804097 It simply is impossible.
– Desdenova
Nov 20 at 6:35
Thanks for the explanation everyone. That makes perfect sense! I can't accept for another 3 minutes
– user7804097
Nov 20 at 6:38
Thanks for the quick answer, I'll give it a try. But I'm using this same code (let v = HTPController() ) in the same file for HTPController and it works as expected though. It also has a button. What is wrong about this specific one?
– user7804097
Nov 20 at 6:32
Thanks for the quick answer, I'll give it a try. But I'm using this same code (let v = HTPController() ) in the same file for HTPController and it works as expected though. It also has a button. What is wrong about this specific one?
– user7804097
Nov 20 at 6:32
@user7804097 That button probably isn't connected either.
HTPController doesn't crash because you have not used that button in viewDidAppear or viewDidLoad. Try pressing that button, it shouldn't do what it is supposed to do.– Sweeper
Nov 20 at 6:34
@user7804097 That button probably isn't connected either.
HTPController doesn't crash because you have not used that button in viewDidAppear or viewDidLoad. Try pressing that button, it shouldn't do what it is supposed to do.– Sweeper
Nov 20 at 6:34
@user7804097 It simply is impossible.
– Desdenova
Nov 20 at 6:35
@user7804097 It simply is impossible.
– Desdenova
Nov 20 at 6:35
Thanks for the explanation everyone. That makes perfect sense! I can't accept for another 3 minutes
– user7804097
Nov 20 at 6:38
Thanks for the explanation everyone. That makes perfect sense! I can't accept for another 3 minutes
– user7804097
Nov 20 at 6:38
add a comment |
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Can you post your viewWillAppear code here?
– iOS_Maccus
Nov 20 at 6:27
@HPM the first snippet of code is my VWA. that's the only code in it
– user7804097
Nov 20 at 6:29
1
Matt answered your question check it
– iOS_Maccus
Nov 20 at 6:31