I'm a total newbie with xcode and swift, trying to wrap my head around ios programming.
I'm designing a storyboard for my app. The storyboard uses containers to keep track of the controls. In one of the containers resides a button. I want to create an outlet for it to add some code when it is clicked.
If the button would be on the base viewport of the storyboard, I would control-drag a blue line from the button to the source window with my UIViewController subclass file, and it would assist me in generating the code. But for some reason when the button is in a container, this just doesn't work.
When following the documentation, it says to open the assistant editor when the button is selected and it should open the relevant file. So it open an objective-c file, but when I try to control-drag into it, it informs me that I do not have write permissions. Also I feel like I should be doing it in a subclass instead.
I have searched online a lot and tried everything I can think about, but nothing has worked so far. How does this work? Can I do it programmatically or so perhaps? I hope someone can straighten out this question mark...
A container view is intended to represent an area that will host a view from a different view controller that becomes a child of the view controller that owns the container. Usually, you would create a second view controller, link your container view to it using an "embed" segue, and then put your buttons and such in the second controller's view. The code behind those would then go into the second controller.
If your purpose is simply to have superviews to control layout within a single view controller, use a UIView rather than a container and the problem goes away. That's what the Editor->Embed In->View menu item is for.
Related
I'm sure I'm asking a simple question but I've only just started coding... so take pity on me!
I'm trying to figure out how to connect buttons (actions) to the viewController.swift from a modal/popover segue (I think the solution is the class but whenever I change it I get an error).
Eg.
In the storyboard, on the viewController interface, I have a button for sharing files. When I click it, a popover segue appears with two buttons on it, one for Fb one for Twitter, but I can't connect any actions from them to the viewController.swift
In another project I made a Google+ login and connected it to a modal segue but I couldn't make that work either.
Is segue the wrong thing to use?
Thanks for your help!
Marie
Your question would be easier to answer if you'd provide the actual error you're getting when you try to change the class.
It sounds like you're trying to connect the popover's buttons to actions in the presenting view controller (that is, the view controller that presented the popover), rather than the view controller of the popover itself. If that's the case, then that's the problem. You can only connect your buttons directly to actions available in the current scene.
This means you need a custom class for the presenting view controller (the one with the button that segues to the popover controller) and one for your popover. Set each scene view controller's classes to the appropriate custom classes you created (which must be a subclass of NSViewController or one of its subclasses or you won't be able to set the class name in IB) and you should be able to drag connections.
I am fairly new to the OSX development and I am finding difficulty on getting some helpful material on the oSX development.
I want to slide from one view controller to another. How do I do that?
I know how to get from one view controller to another. When a button is pressed on the controller another view controller pops up. I dont want that. I want to slide from one view controller to another. Is there a way to do that?
Any help is appreciated
Navigation controller does exactly what you want(it is its default animation), create storyboard file, drop navigation controller in there, set it as initial view controller and there you have it.
Here is a very useful tutorial for storyboards and navigations: http://www.raywenderlich.com/81879/storyboards-tutorial-swift-part-1
I am going round in circles trying to get a custom view to scroll correctly.
To simplify this.
I create a new OSX cocoa application.
Go to the xib file, select the window. drag a custom view, then drag a few buttons into it.
Run the program, you have a button in the screen.
Now go back the custom view, select editor -> embed in -> Scroll view
Everything looks fine, and suggests you will have two buttons with scroll bars in the custom view.
Run the program, the custom view shows with scroll bars, but the button do not show.
What am I doing wrong?
Following your instructions I have created and changed the project. No problem.
Run in IB your "app", CMD R. The user interface itself can be checked in this way.
If problem remains
Check the layer position->Click on the custom View
Is it possible to Layout->Send to back? If yes, then your button-scrollview is not embedded.
Unembed the button, view and repeat the process, by checking in IB if now the interface shows appears correctly.
I often make use of views in interface builder that live outside of the viewcontroller hierarchy (see screen grab below for simple example).
Before upgrading to Xcode5 I could get this view to appear on the storyboard by writing an IBAction outlet and dragging a connection from the code to the view in the storyboard.
If you paused over the button for a moment it would flash and then open up as a view on the storyboard that is then a lot easier to work with.
Since upgrading this function no longer seems available. Has anyone found out how to get these views to appear on the storyboard?
Edit:
Using the temporary viewcontroller as described in this answer seems one approach, although fiddly since you need to move the UIView stack between viewcontrollers each time you want to edit the layout. Using a separate XIB is starting to seem like the sanest approach.
https://stackoverflow.com/a/13713385/1060154
Finally, we get this back in Xcode 7.
Hallelu!
I am developing a small app that display the active mounts in a menu in the NSStatusBar. So far it looks like this:
I want to add an eject button to the right of each menu item (like the left bar in the Finder). I know that I have to create a custom view and set it with the setView: method. The problem is that I am very new to Cocoa and right now I don't know how to dive into the custom view topic. Actually, I programmed a lot but never worked with interfaces so far :). Does anyone of you have a good tutorial for adding a custom view to a NSMenuItem?
I think this app will be very handy because you can hide the mounted icons from your desktop. The problem is that you always have to go back to the finder to unmount a volume...
Thanks for any help or tips you have!
It doesn't have to be a custom view. It can just be a standard NSView that acts as a container for standard controls.
The tricky part for a newbie is making the view reusable. You'll want your own NSViewController subclass with a corresponding view nib/xib (set up with your name label and eject button). For each menu item, you'll instantiate a new NSViewController with the XIB ( -initWithNibName:bundle: ) and set its represented object to your mount point. Your view controller subclass will have all it needs to respond to the eject button click, set the label to its represented object's path, etc.