This is something that I've brushed off for a while now, but needs to be fixed. Recently, I upgraded to Xcode 5. After the upgrade, the buttons on the initial view will move after being clicked. This only affects that view, and none of the other views. This is odd, because the main view has no attached code to it - it is just a default UIViewController class. I tried creating a custom UIViewController class and linking the view to it, and I've tried deleting the button and recreating it - but they still move when clicked. Has anyone else had this problem after they upgraded to Xcode 5?
Before I click a button
And after I click a button
I suspected the problem is with the new Auto layout and the constraints. I have had similar issues with this when an object redraws it moves. Normally mine are when I expand a NSWindow (OSX) the objects inside its view fly off into a different position.
I would suggest you read the Documentation on Auto Layout guide and then have a look at how your buttons are set up. The is also a section on how to debug issues.
This is most likely happening due to auto layout. You have two options:
Add auto layout constraints that will position them in fixed positions, so that way they will never move.
Disable auto layout for your storyboard or XIB that contains the view controller.
Related
Putting a ProgressView into a ViewController.
When I drag the ProgressView over to create an outlet the option comes up as UIView and not UIProgressView. What am I doing wrong?
Using Swift 4/Xcode 10.2.1
Hate to say it but you must be dragging the wrong view. Just added a Progress View to a project and control + dragged it across and got this:
It's easier to control + drag specific views from the left hand side navigator sometimes instead of directly from the story board.
Edit: Other than that I would try removing it and adding it again and/or restarting Xcode.
I have been working on a project where I needed to show list of images with zoom / swipe feature as presented view modal. I created custom ImageViewer using ContainerView in which I have added UIPageViewController. And on demand, I added ImageViews over the UIPageViewcontroller's view. When user taps to imageView, the top UINavigation gets shown and hidden on toggle basis.
Everything worked as expected in iOS 7.1 and less. However when I tested the functionality in iOS 8 devices and simulator, the ImageViews were not added to UIPageViewController in TopLeft ( beneath UINavigationBar ). It is added below the NavigationBar as shown in bug_iOS_8.png below.
Once I touch the buggy view, it repositions itself to correct position as in image expected.png below.
I have created and tested the issue in sample project and it seems it is bug in iOS 8 itself with UIPageViewController. I went through couple of questions regarding weird behavior of UIPageViewController too. Please check the sample app here and kindly let me know if anyone has any hints on what is going on.
Thank you for your time and help.
PS: BTW I am using following version of Xcode.
Update 1:
I have tried as per the pin suggestions. However, the problem aligning is with the main view of UIViewController rather than its subview. In below image, Yellow is main View of UIViewController and red one is added subview, I added pin to "red" on in reference to superview "yellow" one. Please check following screen shots.
On startup.
After touch on screen.
Kind Regards,
check in storyboard for particular viewController and make sure Extended Edges >> Under top bars is not selected.
I had a very similar issue and the way i fixed it was select the view being added to the UIPageViewController in the storyboard and selected the pin options. Below in the image you can see the Constrain to margins options, make sure you unselect that. Also when choosing what view to pin it to make sure you select the superview and not the Top Layout Guide.
Curious are you hiding your nav controller like this?
[self.navigationController setNavigationBarHidden:YES];
also if you have multiple Nav controllers, you might need to check you are referencing the correct one.
If you want it to be hidden when you present the ViewController you should move it to
-(void) ViewWillAppear{
}
EDIT**: Although someone has decided they would like to down vote without a reason I'm going to leave this up. I noticed that in viewDidLoad of my view controller container, the content view I setup was the same size as in IB. When I later tried to load other views with my view container controller, the content view had changed it's bounds. Hope this helps anyone else that has a similar issue. The excepted answer worked. Since this is a build for iOS 6 a simple check of OS version made this an easy fix.
I have a strange issue that seems to be iOS7 related. This is an iOS6 targeted app. I have followed apples own docs about creating custom container views here. The problem I'm seeing in iOS7 is the first view I load is within the proper bounds of the content view i have defined, the other two are filling the bounds of the entire screen so it hides under the navigation bar with my segmented control. I defined the view I'm loading in a separate view controller in storyboards. Is there some sort of constraint that is working against me?
I should add that I have noticed the content view I defined in my container controller is actually changing it's size after the initial view is loaded. I'm at a loss of how to stop iOS7 from changing that UIViews frame size when it really shouldn't be changing.
Here are some screenshots. Code is pretty much the same as in the apple docs, have tried a few other ideas, defining bounds etc. but I think it has something to do with IB since the content view is changing its bounds. It appears to only be doing so in iOS7.
There is actually a proper way to fix this,
Set edgesForExtendedLayout to UIRectEdgeNone for the view under the tab bar.
Of course, I might've just looked at the pictures and assumed this was your problem...sorry if its completely unrelated..
That's a known 'issue' in iOS 7. Since you can now have a blurred look through the UINavigationBars, UITabBars, ... This also causes issues in native apps (e.g. the Photos App) or APIs.
I'm developing an Enterprise app for tracking mileage and maintenance for company vehicles. I've added graphic buttons to snazz it up a bit. The buttons look the way they're supposed to look on the XIB in IB, and on the iPhone all other UIViews look correct, but on one particular UIView the graphic images are stretched way out of proportion vertically.
The first image below shows how it's supposed to look, with the three graphics buttons at the bottom. The second image shows how it's showing on the phone. The Help button on this screen cap shows normally, but it can't be counted on to stay that way.
It also is not consistent. Calling this view at any time may show the image stretched or it may not show an image at all. It rarely shows the image normally, like the Help button looks below.
The development phone is a 4S running 6.1.3. The views are set for the Retina 3.5 screen. XCode is the latest (whatever it is).
Again, it's only on this one view that the problem shows up. There is another UIView on the same view controller that is hidden when this UIView is shown. The button graphics on the other view look fine. All of the other views and view controllers use the same graphics on the UIButton, without any problem.
In Interface Builder (Xcode) you created the view using a 4.5-inch screen height.
But the device where you are seeing the problem is a 5-inch screen. So the view is resized to fit.
And when it does that, the autolayout constraints that Interface Builder put on those subviews take over to determine what they do. Those constraints are causing the heights to change.
No need to turn Autolayout off. Autolayout can be very useful, but it seems to enjoy randomly assigning the constraint "Align Baseline to:" to UIButtons after repositioning them.
Just select the UIButton/UIImageView in question inside Storyboard, locate the constraint "Align Baseline to:", tap the gear icon and select "Promote to User Constraint", and tap once more and select "Delete". This should solve your issue.
In response to the comments here, I will answer my own question: I turned Autolayout off for this view controller, and that fixed everything. This is the first app I have written since XCode has begun development for the iPhone 5, so I wasn't aware of the Autolayout feature. I'll need to understand how it works and why it did what it did.
Thanks for all your help!
I'm new to Xcode, and I'm having issues with Xcode auto-resizing controls when I add them to a view. Literally every control I try to add to the view is resized to fill the entire view, and I cannot figure out how to manually resize the controls and/or disable resize to fill in the first place. How does one go about this?
Thanks for any help :)
Ah. In a fit of noobishness, I failed to realize that I was adding controls to the view controller. Whooooops.