CODEWITHSUNDEEP
iosswiftuiviewcontroller
Rakesh
Rakesh

Reputation: 302

App gets hanged if I add subview over another view without removing it

My app gets hanged if I try to add subview over another view controller which is added as subview.

Is there any way to get the view controllers which are in background of view? so that I can remove the view controllers which are in background of a view.

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let viewController = UIStoryboard(name: "Common", bundle: nil).instantiateViewController(withIdentifier: "ContactOptionsDialouge") as! ContactOptionsDialouge
viewController.initializeDataBeforePresentingView(presentConatctUserBasicInfo : userBasicInfo,supportCall: checkAndEnableCallOption(callSupport: matchedUser!.callSupport), delegate: nil, isRideStarted: isRideStarted!)
self.navigationController?.view.addSubview(viewController.view)
self.navigationController?.addChildViewController(viewController)

Here is the code I am using to add view controller as subview. And the other top view controller it comes automatically when the other user accepts the ride using mqtt connection

Upvotes: 0

Views: 116

Answers (2)

Ashok
Ashok

Reputation: 5655

It seems that your code is not crash free. You can use below code if it is relevant:

guard let viewController = UIStoryboard(name: "Common", bundle: nil).instantiateViewController(withIdentifier: "ContactOptionsDialouge") as? ContactOptionsDialouge else { print("viewController is nil"); return; }
guard let matchedUser = self.matchedUser else { print("matchedUser is nil"); return; }
guard let isRideStarted = self.isRideStarted else { print("isRideStarted is nil"); return; }

viewController.initializeDataBeforePresentingView(presentConatctUserBasicInfo: userBasicInfo, supportCall:  checkAndEnableCallOption(callSupport: matchedUser.callSupport), delegate: nil, isRideStarted: isRideStarted)
self.view.addSubview(viewController.view)
self.addChildViewController(viewController)

Upvotes: 1

Rakesh
Rakesh

Reputation: 302

self.navigationController?.view.addSubview(viewController.view)
self.navigationController?.addChildViewController(viewController)

Adding below lines of code instead of above works fine for me :-

self.view.addSubview(viewController.view)
self.addChildViewController(viewController)

Upvotes: 0

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