I am using a UISwitch in one of my tabbed applications. The UISwitch is on the bottom of the screen. When I first start the App, the switch works fine. I can rotate from portrait to landscape, everything works fine. I can even go to other tabs and come back and the switch still works in both landscape and portrait. However, if I go back and forth between tabs maybe five times, the switch works in portrait, but not landscape . Has anyone ever seen or heard of this? Anyone know of a reason this could happen? I have used
[infoSwitch setOn:NO];
in my viewWillAppear, so that the switch always starts OFF. Is there something I am missing about using a switch? I did the same things I have done in the past to get switches to work. Any help will be much appreciated! Thanks again.
UIViews may be visible but will fail to get input if they're outside of the bounds of their parent view. So a first diagnostic would be to give the parent view some sort of obvious gaudy colour so that you can see its bounds visibly, then try your rotation and switching to see whether you can force an error there.
You can also set clipsToBounds to YES to ensure that views don't show subviews that are out of bounds.
Related
My app opens to a UITabViewController. It has 3 UIViewControllers a,b,c as the tabs, connected by a Segue.
It used to work fine but something happened and now when I run my program, the tabs are displayed and it seems that the controller is working (with NSLogs the viewDidLoad of the first tab seems to run) but except for the tabs the whole screen is black and nothing is displayed.
It seems that this happens a lot, but I've tried all the suggestions and so far nothing has worked.
Looking for possible advice on how to deal with this, thanks!
try to change the view's backgroundcolor of each viewcontroller.
Are you selected starting point in storyboard like this
enter image description here
This is one major reason for black screen.
Second one background image, third one background view colour.
This is hard for me to explain, so please bear with me for a minute.
In Xcode, if it is in full screen mode, showing the app's menu also moves the toolbar down. I have tried to make an NSView move and resize whenever the menu bar is shown, but I cannot figure out how to do it. I think this has something to do with and event, because setting struts and springs in Xcode does not make it move automatically. Can anybody help me figure out what the event is?
Edit: I just re-thought my question, and I have to make a correction. NSToolbar does this on it's own. I want a normal NSView to move and resize itself when the window goes into full screen mode.
I think you might be having the same issue as I was - if so, you need to call [NSToolbar setFullScreenAccessoryView:] on the "accessory view" you want to glue to the bottom of the NSToolbar.
Note that in windowed mode, your accessory view should take up space in the NSWindow's contentView just like any other view, but when you enter fullscreen mode you'll want to remove the accessory view somehow since Cocoa rips it out of your layout and leaves a gap unless you account for that.
I can certainly understand this issue being difficult to explain without having the background knowledge - I had the same problem. :)
Also see: How can I get a two-row toolbar like in Mail.app and Xcode?
I'm trying to make and iOS app with both portrait and landscape views, but if I open it and change the orientation to Landscape, some buttons got offscreen, after going to IB and reordering the buttons, in Portrait they go off screen.
After googling, I dont have ANY ideia how to 'change' views according to orientation.
Could you guys give me some help?
Ah, also, Apple Support Documents seems pretty useless to me :P
Thanks!
There a method - (void)didRotateFromInterfaceOrientation:(UIInterfaceOrientation)fromInterfaceOrientation{}
which is useful in such cases.
You should change autosizing properties in IB (they're in the same place where frame size is) or change autoresizingMask properties of your inner views and controls programmatically. This controls what happens to the elements of your screen after it gets resized (for example when the screen is rotating). You can glue your components to left or right or both, top or bottom or both and similar. Play with it, it's pretty powerful and you don't need any code for that if what they can do is enough.
I have question regarding changing orientation on iPad.
I use MonoTouch, but if Obj-C programmers can help, it will be just as great.
First of all, I figured out if I provide different splash screen images for different orientations, app will show the right one. This can be done for any orientation, such as "Default-LandscapeLeft.png", or generic one "Default-Landscape.png".
All of my images are of correct dimensions and yet, when I start it in portrait mode, it shows it enlarged. All of other modes work perfectly well.
Second problem is I want my app to continue to be in that orientation after my first controller appear. At the moment, it shows portrait in any case. I started generating orientation notifications before first controller appeared (UINavigationController), but I think it responds only on orientation changes. After I moved device, it rotates and from that moment, everything works fine. BUT, I want to "inherit" orientation info from my splash screen.
Any idea will be appreciated.
Thanks guys and girls.
Cheers
Images for different orientations:
Default.png and Default-Landscape.png should be provided + setting the app settings to provide the required orientations.
Second problem:
After creating the first controller call
myController.WillRotate(UIApplication.SharedApplication.StatusBarOrientation, 0);
Before I start I should say I know this seems like a long shot, however I figured it was worth a try.
One app I am working on right now is a Mac Statusbar App. It has a NSStatusItem in the menubar and when clicked it will display a custom window with a popover appearance (like on iPad or like Fantastical has on the mac.) Anyway I started testing this by inserting a single nsmenu item in the status items menu. The view has set clear color for the background color on its window. However this still doesn't quite work as you can see in the pic below
There is still a small white thin line above and below the item
The clear area isn't clear, its like it has a blur filter on it
Other than that, it works fantastically great. I just didn't know if anybody else has ever attempted anything like this before and figured out how to overcome these 2 issues which seem to be the only thing preventing this from working.
If there is no way to do this I may have to resort to using a custom view for the NSStatusItem so I can get the coordinates on screen to position my own window below the NSStatusItem.
A fake window seems like a rather weird approach to this. Why not just pop up a regular window? I suggest MAAttachedWindow: http://mattgemmell.com/2007/10/03/maattachedwindow-nswindow-subclass