I'm a newbie in ios development... I created a Windows based application. How do I link a view to a controller I created? How do I go to the next view when button is clicked?
You generally don't link a view to a view controller -- it's the other way around. Add an IBOutlet to your view controller that will point to the view in your .xib or storyboard. Then, in IB, drag a connection from the view to the view controller and choose that outlet. This process is described in detail in Apple's documentation.
To move to the next screen when you click a button, you'll create an IBAction method in your view controller. You can then drag a connection from your button to that view controller and select the action. When the button is tapped, the action method will be sent. The code in the action can then call an appropriate method to transition to the next controller. Alternately, you can use storyboards and segues, and have the button trigger a segue to the next view. You'll find a description of the target/action system in the same document that I linked above.
Related
So i currently have a ViewController that has a tableView in it with a tab bar on the bottom. Its basically an instagram clone. However, i built all the tableView functionality and am now just getting around to playing with the tab bar items to segue to new view controllers.
I cant figure out how to attach my already created tab bar(which is inside a regular view controller) to other view controllers in IB.
The ctrl+drag from the newly created view controllers to my MAIN view controller doesn't work. It doesn't provide an option to create a view controller segue.
Below is an image of my current view controller and a brand new one to the right
Any help on how i can do this would be greatly appreciated
On you tabbbar controller ctrl+click and drag to the view controller you want to create a relationship to.
Then when the little menu appears, under 'relationship segue' click 'view controllers'
You should then end up with something like this. Continue the same process to add more relationships.
My question is very similar to : Swift: Make button trigger segue to new scene
The issue is:
I have a view controller, with a button that causes another view controller to appear modally.
I have Ctrl+Click from the button to the second View Controller, and created the segue in IB.
Then I Ctrl+Click from the button again to the source code of the view controller to create an IBAction method.
I assumed that the button will do two things now: a) call the IBAction method , and b) perform the segue.
What happens is only the segue for some reason.
When I delete the segue, or remove the call to the view controller from IB, then the IBAction is called, but Xcode tells me that the second view controller is not reachable now.
I want to be able to present an ActionSheet to the user and then be able to performSegue to the second view controller, based on what the user selected from the action sheet.
I know I can programatically call performSegue but that requires the creation of the segue and attaching it to a physical button in IB, which defeats the purpose of not calling the IBAction that button may already have.
If I want to do some additional steps before calling the segue I usually attach an IBAction to the UIButton and call the perform segue from within this, in the code. You can add a segue to the storyboard and give it an ID, without having to connect it to a button. You do this by control-clicking on the viewcontroller and drag to the next viewcontroller in the storyboard.
Connecting a segue from storyboard will automatically always perform the segue. You can do any preparation for transitioning to the new view controller in the prepareForSegue method.
If there is some logic that comes before, like a user selecting something from the action sheet, just use the IBAction and then perform the segue with performSegueWithIdentifier based on the user selection. However, you do not have to create another button, just ctrl+drag from one view controller to another and give the segue an identifier.
I am trying to implement a feature using PageViewController in iOS Swift language. In my scenario there will be images on all views associated with PageViewController. I will have buttons on top of images, (refer to example app's screenshot.) How can I implement that with change of page only the image slides not the buttons.
Finally I was able to do it, by following steps:
In your storyboard, create a standard Viewcontroller scene.
To this scene add your fixed buttons and a container view. Adding
the container view will automatically add an embedded view
controller. Select this and delete it.
Drag a Page view controller into the storyboard.
Select the container view and drag from the "viewDidLoad" item in
its "triggered segues" list to the page view controller. Select
"Embed" as the segue type.
Following delegate methods are to display dots of page controller, dots will appear at bottom of view.
presentationCountForPageViewController
presentationIndexForPageViewController
For your requirement need to create custom UIButtongroup or UIView group, so that you can place it anywhere in page.
Here is my current problem. I have a UIViewController setup with its data and everything on a small sized view controller. What I am trying to see is if it is possible to connect that to a separate view controller. For example I have a view controller that has a user click a button. Upon pressing the button the UIPicker ViewController would pop up from the bottom and I could go from there. I know how to enable this if the picker is on the same view controller. However, I have no idea how to if its on its own ViewController. Any ideas?
One way to do this would be to put the picker view on the same view controller and make it hidden, and, when they press the button, unhide it or load the other view controller when they press the button; this will display the other view controller, not what's on the current one.
I'm creating a popoverSegue from a new view controller and want to push a third view controller onto the original stack. This is how I'm creating the application:
Create a new Single View Application
Select Use Storyboards
Select the MainStoryboard.storyboard file.
Select the only View Controller, change the Title and Identifier to initialView, then select Editor->Embed In->Navigation Controller
Drag two new View Controller objects from the Objects Library onto the canvas
Change the Title and Identifier of the new View Controllers to: popoverView and newView.
Add a Round Rect Button object from the Object Library to initialView and popoverView.
Add a Label object from the Object Library to `newView.
Control click the button in the initialView and drag to popoverView.
Select the Popover option from the Storyboard Segues menu that appears.
Control click the button in the popoverView and drag to the newView.
Select the Push option fromt the Storyboard Segues menu.
Build & Run.
Click the first button, and the popover appears, but when you click the button within the popover, nothing happens (it should push the new view but doesn't.)
What I want to do is for it to push onto the Navigation Controller stack, but am not sure how to setup the storyboard for that.
Any ideas?
You're expecting the UINavigationController hierarchy to extend itself into a presented popover. It won't. The same goes for presenting modal view controllers. If you were to log self.navigationController in popoverView, you would see that it is nil.
Embed popoverView into it's own UINavigationController. Remember that if you're overriding prepareForSegue:sender: and attempting to configure the popover, you will need to get the topViewController from destinationViewController as the destination is now an instance of UINavigationController.
Sounds like it should work, but if it doesn't try the following:
1. Click the segue that doesn't work and give it an identifier. Let's say it's PopoverToNewSegue.
In your implementation file for the popover view controller, add an action when the button is clicked.
That function should return void and add the following line:
[self performSegueWithIdentifier:#"PopoverToNewSegue" sender:self];
That should get your segue running. I've noticed that segues don't always work like you expect them to, but this one works for me without fail.