I'm having a bit of difficulty with UISearchDisplayController and the positioning of it's grey overlay when building against iOS 7. This was working fine when building against iOS 6, but only seems to have
I have a UIView built into a base ViewController which needs to be shown on every page (reads "Hello thereAnother String") in the screenshot before. When I navigate to my view controller which includes the UISearchDisplayController, this is what I see:
This is fine and is what I'd expect to see. However, when I try to click on the view UISearchBar, this is what I see:
Note that the grey overlay is offset by the size of that UIView that I need to put in all screens of the application.
Any ideas on why this might be happening?
can you use custom category of UITextfield and override those Method the
- (CGRect)textRectForBounds:(CGRect)bounds; and
- (CGRect)editingRectForBounds:(CGRect)bounds ;
this problem occur from custome this method.
Related
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{
}
I am attempting to implement a UIScrollView with a UIPageControl following the guide on this website:
http://www.iosdevnotes.com/2011/03/uiscrollview-paging/
In opposite to the guide, I am implementing this in a storyboard project, and using XCode4.5.2. In addition to the code in the guide, I have added at the beginning of the #interface, and inside the viewDidLoad method in the implementation, I have added scrollView.delegate = self.
With only the code and IB-objects described in the guide added to my app, it doesn't allow me to scroll at all when I test it on my iPhone. The only scrolling i can do is by swiping my finger over the UIPageControl, which makes the "white dot" in the PageControl move one spot towards the direction I was swiping, and with no visible changes in the ScrollView. In the guide we add different colours to the backgrounds of the views in the scrollView -- none of these colours show up at all.
I have tried debugging by putting NSLogs in my code to see what methods are reached by the app. Adding an NSLog (#"View did load"); right after [super viewDidLoad]; in the viewDidLoad method atop the main view controller doesn't output anything to the terminal. Does this mean my app doesn't load up properly?
Thanks in advance!
Do you have multiple pages added to the scrollView? Scrolling is default off if you only have one page worth of content. Ensure that the loadScrollView method is called and also add this:
scrollView.pagingEnabled=YES;
If you are interested I created this class for paging with the scrollview
https://github.com/andrealufino/ALScrollViewPaging
I am doing a lot of researching lately about how to get a different looking with nice effects UITabBar on my iPhone app, but unfortunately I am only finding things on how to replace background color etc.
Well, I've checked out this app called Momento which is pretty cool and presents a very slick tabBar:
So there are a couple of elements here I would like to ask you guys if you could help me by giving me the right directions on how to get a similar effect :)
Arrow above items: as you can see this app has this animated arrow that runs above the selected item with a very smooth animation.
Selected Stated of the item's image is not that blue-ish default one neither the default state which displays in a different shade of brown and gray version.
nice Items separators with beveled vertical lines.
different background image for the tabBar
different height for the tabBar
At this point after some research I am able to set the height and background image by subclassing UITabBarController but I'm still not sure on how to accomplish the other items specially the first one related to the nice arrow effect.
How do I do this? Please clarify what can or can't be done by subclassing the UITabBarController and specially if can be done in Interface Builder.
There's a project on github called BCTabBarController that aims to mimic the tab bar used in Twitter for iPhone. It's got some of the things you're looking for, and should give a great starting point.
Both of these are good answers, but both libraries have problems: BCTabBarController doesn't know how to create the "blue" highlighted version of a tab bar icon; and iDevRecipies doesn't send events to child viewcontrollers nor resize the navigation bar on rotate.
Be warned: custom nav bars are a lot of trial-and-error debugging (as I have found).
Simply use a UIView with TabBar width and height.Add custom background image and custom buttons on the view.Set the fileowner of the view as AppDelegate.Now you can simply connect the IBActions with the buttons.The Custom view can be placed over the tabbar by addSubView to the TabBar controller's view.You can switch between viewcontrollers by using the setSelectedIndex method of tableviewcontroller in the button action.
I have a view with a UIScrollView, UIImageView for a background, and a UITextView. I have created several other views just like this and they all come out okay - with a background image and scrollable text but for some reason, now I can't make that work. Either my image overlaps all of the text so that I can't read it or the UITextView default background (white) shows up so that the user can't see the background image. What could be causing this problem?
Do you use Interface Builder or build the views hierarchy in code?
In both cases you should make sure that the order of your views is correct.
In IB the view that you want to appear on top of all the rest has to be under the rest of the views.
In code, make sure that the text view is the last to be added to the hierarchy.
You could also use the next code in order to check if this is the problem:
[self.view bringSubviewToFront:textView];
Okay, it must have had something to do with choosing the delegate. I can't say that I completely understand how I fixed it but it had to do with declaring the delegate in IB.
I have a horizontal UIScrollView that contains UIButtons (though it could be any object). I would like to only download images for these buttons as the user scrolls and they are seen. I would also like an activityindicator running on each button while the images are downloading. Here's what I've tried with results:
Check content offset of uiscrollview and download images for visible buttons. Problem: issues getting activity view shown within subclassed UIButton and not desired usability since images are only downloaded once scrolling stops.
Add subviews (not buttons) to the UIScrollview hoping to use the view's ViewController to initiate a downloaded on viewDidAppear. Problem: viewDidAppear never seems to get called (because I am using addSubView?).
I've seen other apps that do this kind of loading but need some guidance on the typical set-up. Ebay's app is a great example. All items have a default image until the item comes into view, then an activityindicator runs and the items unique image is downloaded.
Thanks for assistance.
Without actually trying it out, here's my idea:
You can use the UIScrollViewDelegate method scrollViewDidScroll: to find out when your scroll view finished scrolling and then use [UIScrollView contentOffset] to determine which part of the scroll view is visible and (CGRect)convertRect:(CGRect)rect fromView:(UIView *)view to determine the button's position within the visible part of the scroll view. Have a method that checks if the button has had its image loaded yet and if not, load it and refresh the view if necessary.
Most such apps are using a UITableView, not a plain scroll view. Joe Hewitt's Three20 framework has a TTImageView class that can do lazy image loading and is pretty well suited to this kind of use.