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Created a Next button for iOS app… giving SIGABRT error upon clicking
I'm trying to build a GoogleMaps based application. When the user is on MapViewController, I want them to be able to choose a location on the map and click Next at the Top right. Doing so should take them to another screen with a description of the location (HomeViewController). I'm stuck on implementing the Next button. My current code for the button looks like this...
override func viewDidLoad()
{
....
navigationItem.rightBarButtonItem = UIBarButtonItem(title:"Next", style: .plain, target: self, action: #selector(MapViewController.next as (MapViewController) -> () -> ()))
}
func next()
{
print("next")
if let navController = self.navigationController, let viewController = self.storyboard?.instantiateViewController(withIdentifier: "indentfier") as? HomeViewController{
navController.pushViewController(viewController, animated: true)
}
}
I ran it at first with just the print("next") and it worked (i.e., it just printed "next" to the console). When I added the second line with the push, the app started to crash when I clicked Next. I also got a SIGABRT error on my app delegate.
Note: HomeViewController is actually the home page; it's a previous screen that the user will have already seen a 4-5 screens before the map. I basically want them to go back a few screens to the home page when they hit Next.
Any help would be appreciated. Thank you.
ios swift
edited Nov 20 '18 at 21:52
Sh_Khan
42k51326
asked Nov 20 '18 at 18:53
srsrsosrsrso
344
add a comment |
I'm trying to build a GoogleMaps based application. When the user is on MapViewController, I want them to be able to choose a location on the map and click Next at the Top right. Doing so should take them to another screen with a description of the location (HomeViewController). I'm stuck on implementing the Next button. My current code for the button looks like this...
override func viewDidLoad()
{
....
navigationItem.rightBarButtonItem = UIBarButtonItem(title:"Next", style: .plain, target: self, action: #selector(MapViewController.next as (MapViewController) -> () -> ()))
}
func next()
{
print("next")
if let navController = self.navigationController, let viewController = self.storyboard?.instantiateViewController(withIdentifier: "indentfier") as? HomeViewController{
navController.pushViewController(viewController, animated: true)
}
}
I ran it at first with just the print("next") and it worked (i.e., it just printed "next" to the console). When I added the second line with the push, the app started to crash when I clicked Next. I also got a SIGABRT error on my app delegate.
Note: HomeViewController is actually the home page; it's a previous screen that the user will have already seen a 4-5 screens before the map. I basically want them to go back a few screens to the home page when they hit Next.
Any help would be appreciated. Thank you.
ios swift
edited Nov 20 '18 at 21:52
Sh_Khan
42k51326
asked Nov 20 '18 at 18:53
srsrsosrsrso
344
You need to tag yournextfunction with@objc. Also#selector(MapViewController.next as (MapViewController) -> () -> ())this could just be#selector(next)
– Oscar Apeland
Nov 20 '18 at 18:56
add a comment |
I'm trying to build a GoogleMaps based application. When the user is on MapViewController, I want them to be able to choose a location on the map and click Next at the Top right. Doing so should take them to another screen with a description of the location (HomeViewController). I'm stuck on implementing the Next button. My current code for the button looks like this...
override func viewDidLoad()
{
....
navigationItem.rightBarButtonItem = UIBarButtonItem(title:"Next", style: .plain, target: self, action: #selector(MapViewController.next as (MapViewController) -> () -> ()))
}
func next()
{
print("next")
if let navController = self.navigationController, let viewController = self.storyboard?.instantiateViewController(withIdentifier: "indentfier") as? HomeViewController{
navController.pushViewController(viewController, animated: true)
}
}
I ran it at first with just the print("next") and it worked (i.e., it just printed "next" to the console). When I added the second line with the push, the app started to crash when I clicked Next. I also got a SIGABRT error on my app delegate.
Note: HomeViewController is actually the home page; it's a previous screen that the user will have already seen a 4-5 screens before the map. I basically want them to go back a few screens to the home page when they hit Next.
Any help would be appreciated. Thank you.
ios swift
edited Nov 20 '18 at 21:52
Sh_Khan
42k51326
asked Nov 20 '18 at 18:53
srsrsosrsrso
344
I'm trying to build a GoogleMaps based application. When the user is on MapViewController, I want them to be able to choose a location on the map and click Next at the Top right. Doing so should take them to another screen with a description of the location (HomeViewController). I'm stuck on implementing the Next button. My current code for the button looks like this...
override func viewDidLoad()
{
....
navigationItem.rightBarButtonItem = UIBarButtonItem(title:"Next", style: .plain, target: self, action: #selector(MapViewController.next as (MapViewController) -> () -> ()))
}
func next()
{
print("next")
if let navController = self.navigationController, let viewController = self.storyboard?.instantiateViewController(withIdentifier: "indentfier") as? HomeViewController{
navController.pushViewController(viewController, animated: true)
}
}
I ran it at first with just the print("next") and it worked (i.e., it just printed "next" to the console). When I added the second line with the push, the app started to crash when I clicked Next. I also got a SIGABRT error on my app delegate.
Note: HomeViewController is actually the home page; it's a previous screen that the user will have already seen a 4-5 screens before the map. I basically want them to go back a few screens to the home page when they hit Next.
Any help would be appreciated. Thank you.
ios swift
ios swift
edited Nov 20 '18 at 21:52
Sh_Khan
42k51326
asked Nov 20 '18 at 18:53
srsrsosrsrso
344
edited Nov 20 '18 at 21:52
Sh_Khan
42k51326
asked Nov 20 '18 at 18:53
srsrsosrsrso
344
edited Nov 20 '18 at 21:52
Sh_Khan
42k51326
edited Nov 20 '18 at 21:52
Sh_Khan
42k51326
edited Nov 20 '18 at 21:52
Sh_Khan
42k51326
42k51326
asked Nov 20 '18 at 18:53
srsrsosrsrso
344
asked Nov 20 '18 at 18:53
srsrsosrsrso
344
asked Nov 20 '18 at 18:53
srsrsosrsrso
344
344
You need to tag yournextfunction with@objc. Also#selector(MapViewController.next as (MapViewController) -> () -> ())this could just be#selector(next)
– Oscar Apeland
Nov 20 '18 at 18:56
add a comment |
You need to tag yournextfunction with@objc. Also#selector(MapViewController.next as (MapViewController) -> () -> ())this could just be#selector(next)
– Oscar Apeland
Nov 20 '18 at 18:56
You need to tag your
next function with @objc. Also #selector(MapViewController.next as (MapViewController) -> () -> ()) this could just be #selector(next)– Oscar Apeland
Nov 20 '18 at 18:56
You need to tag your
next function with @objc. Also #selector(MapViewController.next as (MapViewController) -> () -> ()) this could just be #selector(next)– Oscar Apeland
Nov 20 '18 at 18:56
add a comment |
1 Answer
1
active
oldest
votes
Replace
navigationItem.rightBarButtonItem = UIBarButtonItem(title:"Next", style: .plain, target: self, action: #selector(self.next(_:)))
@objc func next(_ bar:UIBarButtonItem) {
}
answered Nov 20 '18 at 18:57
Sh_KhanSh_Khan
42k51326
Thank you for the help... App delegate is still giving me a SIGABRT error, however. I changed my code as per your suggestion. Any thoughts? Thanks again!
– srsrso
Nov 20 '18 at 19:03
1
may be there is a problem in your next vc HomeViewController create an empty controller and navigate to it to verify this also check if the next function is called or not , track your code with logs*breakpoints
– Sh_Khan
Nov 20 '18 at 19:05
1
Thanks Sh_Khan, I just needed to manually add a Segue from my MapVC to HomeVC.
– srsrso
Nov 20 '18 at 20:37
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
Replace
navigationItem.rightBarButtonItem = UIBarButtonItem(title:"Next", style: .plain, target: self, action: #selector(self.next(_:)))
@objc func next(_ bar:UIBarButtonItem) {
}
answered Nov 20 '18 at 18:57
Sh_KhanSh_Khan
42k51326
Thank you for the help... App delegate is still giving me a SIGABRT error, however. I changed my code as per your suggestion. Any thoughts? Thanks again!
– srsrso
Nov 20 '18 at 19:03
1
may be there is a problem in your next vc HomeViewController create an empty controller and navigate to it to verify this also check if the next function is called or not , track your code with logs*breakpoints
– Sh_Khan
Nov 20 '18 at 19:05
1
Thanks Sh_Khan, I just needed to manually add a Segue from my MapVC to HomeVC.
– srsrso
Nov 20 '18 at 20:37
add a comment |
Replace
navigationItem.rightBarButtonItem = UIBarButtonItem(title:"Next", style: .plain, target: self, action: #selector(self.next(_:)))
@objc func next(_ bar:UIBarButtonItem) {
}
answered Nov 20 '18 at 18:57
Sh_KhanSh_Khan
42k51326
Thank you for the help... App delegate is still giving me a SIGABRT error, however. I changed my code as per your suggestion. Any thoughts? Thanks again!
– srsrso
Nov 20 '18 at 19:03
1
may be there is a problem in your next vc HomeViewController create an empty controller and navigate to it to verify this also check if the next function is called or not , track your code with logs*breakpoints
– Sh_Khan
Nov 20 '18 at 19:05
1
Thanks Sh_Khan, I just needed to manually add a Segue from my MapVC to HomeVC.
– srsrso
Nov 20 '18 at 20:37
add a comment |
Replace
navigationItem.rightBarButtonItem = UIBarButtonItem(title:"Next", style: .plain, target: self, action: #selector(self.next(_:)))
@objc func next(_ bar:UIBarButtonItem) {
}
answered Nov 20 '18 at 18:57
Sh_KhanSh_Khan
42k51326
Replace
navigationItem.rightBarButtonItem = UIBarButtonItem(title:"Next", style: .plain, target: self, action: #selector(self.next(_:)))
@objc func next(_ bar:UIBarButtonItem) {
}
answered Nov 20 '18 at 18:57
Sh_KhanSh_Khan
42k51326
answered Nov 20 '18 at 18:57
Sh_KhanSh_Khan
42k51326
answered Nov 20 '18 at 18:57
Sh_KhanSh_Khan
42k51326
answered Nov 20 '18 at 18:57
Sh_KhanSh_Khan
42k51326
42k51326
Thank you for the help... App delegate is still giving me a SIGABRT error, however. I changed my code as per your suggestion. Any thoughts? Thanks again!
– srsrso
Nov 20 '18 at 19:03
1
may be there is a problem in your next vc HomeViewController create an empty controller and navigate to it to verify this also check if the next function is called or not , track your code with logs*breakpoints
– Sh_Khan
Nov 20 '18 at 19:05
1
Thanks Sh_Khan, I just needed to manually add a Segue from my MapVC to HomeVC.
– srsrso
Nov 20 '18 at 20:37
add a comment |
Thank you for the help... App delegate is still giving me a SIGABRT error, however. I changed my code as per your suggestion. Any thoughts? Thanks again!
– srsrso
Nov 20 '18 at 19:03
1
may be there is a problem in your next vc HomeViewController create an empty controller and navigate to it to verify this also check if the next function is called or not , track your code with logs*breakpoints
– Sh_Khan
Nov 20 '18 at 19:05
1
Thanks Sh_Khan, I just needed to manually add a Segue from my MapVC to HomeVC.
– srsrso
Nov 20 '18 at 20:37
Thank you for the help... App delegate is still giving me a SIGABRT error, however. I changed my code as per your suggestion. Any thoughts? Thanks again!
– srsrso
Nov 20 '18 at 19:03
Thank you for the help... App delegate is still giving me a SIGABRT error, however. I changed my code as per your suggestion. Any thoughts? Thanks again!
– srsrso
Nov 20 '18 at 19:03
1
1
may be there is a problem in your next vc HomeViewController create an empty controller and navigate to it to verify this also check if the next function is called or not , track your code with logs*breakpoints
– Sh_Khan
Nov 20 '18 at 19:05
may be there is a problem in your next vc HomeViewController create an empty controller and navigate to it to verify this also check if the next function is called or not , track your code with logs*breakpoints
– Sh_Khan
Nov 20 '18 at 19:05
1
1
Thanks Sh_Khan, I just needed to manually add a Segue from my MapVC to HomeVC.
– srsrso
Nov 20 '18 at 20:37
Thanks Sh_Khan, I just needed to manually add a Segue from my MapVC to HomeVC.
– srsrso
Nov 20 '18 at 20:37
add a comment |
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You need to tag your
nextfunction with@objc. Also#selector(MapViewController.next as (MapViewController) -> () -> ())this could just be#selector(next)– Oscar Apeland
Nov 20 '18 at 18:56