I have a google map that is a gmsmapview covering half screen. And below that I have collection view. I need to have scrolling effect not only for the collection view but also for the google map.
How can I use parallax in this scenario?
I would recommend switching over to MapKit for your map, there are several already created solutions that you could easily drop right into your project.
Check out these two controls: SLParallaxController and LocationPickerView
Related
I have a page view controller embedded inside a container view in order to swipe between images. But now I am trying to add a touch that will make the image go full screen "lightbox" with zoom available and also swipe through the images while in full screen mode.
I can get it to work, and messing around with auto layout seems to be much work consider I have a lot of other stuff in that VC.
So does anyone know a good image slider from github written in swift? - without the need of cocopods.
thanks!
It's easy enough to write one yourself. In full-screen mode, use another UIPageViewController, because it already has the swipe left & right support built in.
I am creating a grid of icons in Objective C / Xcode.
Is there anyway to re-create the iPad Home screen, the one filled with a grid of icons for each App you have on your iPad.
What I am most interested in is reproducing the effect on the icons when the device is rotated. On rotation, a new grid icons (which matches the new orientation) swings around to the right orientation, and the icons themselves transform (I'm guessing its an alpha fade from one icon to the other) into the new icon that would appear at that position.
Ive looked at this SO question, and also at this blog. But I am wondering if there is a class (hopefully one developed by Apple, but third party solutions will do) which recreates this effect?
If there isn't such a class, can anyone suggest to me how I would do the icon transformation effect whilst the screen is swinging around to the correct orientation?
iOS 6 offers a class called UICollectionView that handles the creation of these grids for you. The API is fairly similar to that of UITableView and allows you lots of control for customization.
Check out the UICollectionView class reference, as well as this introductory tutorial.
I am developing a Cocoa Application for Mac OSX. I intend to have multiple NSScrollViews and I'd like all of them to scroll at the same time if one of them is selected and scrolled.
I saw for UIScrollView there is a method "scrollViewDidScroll" that I could do this with an iPhone application.
Is there anything similar for NSScrollView or a way to go about doing this? Any help would be greatly appreciated.
Your solution is going to require that one of the scroll views will need to receive notifications that the other scroll view is being scrolled.
Apple actually provides some very nice documentation on Synchronizing Scroll Views, which also has some sample code snippets as part of it.
On my iPhone, when I go into the Settings app, I see "Airplane Mode", "Wi-Fi", "Notifications", etc. and I'm able to scroll through pages and pages of settings.
I'm new to objective-c and I'm trying to duplicate the functionality in my own app, but I don't know enough about the objects and techniques to know what to ask or what to look for. :)
With that in mind, can someone please explain what's going on with the settings app? What is this using? Is it a UITableView that allows me to scroll down the page? What control is being used to store the text "Airplane" mode? What is happening when I click on the ">" and see a new page?
Any tips are appreciated.
While nobody outside Apple can be 100% sure how they implement their apps, some reasonable guesses would be:
The main screen is a grouped UITableView. Each entry is a single cell.
The text and images in the cells are built using properties of UITableViewCell (e.g. the textLabel UILabel for the text "General"). Some of the more advanced items use custom cell views.
Each category view is another UIViewController, pushed onto the viewControllers stack of a UINavigationController.
The on/off switches are UISliders.
It is a TableView
Table View programming Guide
samplecode
These docs cover all you need
I am trying to design a feature in my application for the iPhone that simulates the Springboard feature (Main menu of the iPhone that allows you to view more apps), or the way Weather application works that allows you to flip between views.
Does anyone have any samples of this how I would go about doing this. It's seems very trivial but I am wondering if I am missing something that is already available either as an Apple example or someone who did a tutorial on this.
The image below show how the user would use it.
alt text http://www.agilitesoftware.com/SpringboardExample.png
As they slide their finger to the right (or left) the other image would begin to show up. And it would animate smoothly. The faster you swiped your finger the faster it would move to the next view.
Update: The other feature is that it should mimic the same feel when you slide your hand across the display that is snaps to the current view into place. It should not keep sliding across if there is more than 1 view to the direction you swiping your finger.
I've seen other applications use this so that is why I am asking.
This is accomplished using the UIScrollView with the pagingEnabled property set to true. Just add each of your views, adjust the contentSize, and it will automatically "page" to the width of the screen across the content.
There is a sample app (with code) with exactly this functionality on the iPhone developer site on Apple.com (I believe it's called "PageControl".) - I'd suggest checking it out.
d.
I'm writing an app that uses a similar UI. As NilObject recommended, we're using a UIScrollView with pagingEnabled=YES.
You may also be interested in this example code involving just two child views. I'm trying it out now; it's an interesting technique but I've had to write some additional special-casing code for some odd situations that resulted.
There's also another question on this site that asks about creating a grid of icons like the home screen.
I would check out Joe Hewitt's code from the Three20 project for this. It provides a nice interface and further refinement of the UIScrollView implemented as TTScrollView and TTScrollViewDelegate, TTScrollViewDataSource.