UICollectionView Or UIButtons [closed] - iphone

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I have a quick question, related to if these images of apps, uses UICollectionView or buttons in their design:
Thank you for the help.

Most likely buttons, as UICollectionView is only compatible with iOS 6+
The LinkedIn iOS app only requires iOS 4.3+ so it is not using a UICollectionView-- they most likely built a custom view using UIButtons
Most apps out there still want to support at least iOS 5+ so your not going to see many using the UICollectionView yet.
Here are some open source "Collection View" classes that may fit your need (just make sure they also support old iOS versions)
http://www.cocoacontrols.com/search?utf8=%E2%9C%93&q=collectionview

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Teleprompter app in Xcode using Swift [closed]

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I have finished an online course in iOS development on Udemy and I'm ready to start developing my first (real) app.
My goal is to make a teleprompter app similar to: https://itunes.apple.com/dk/app/video-teleprompter-lite/id1031079244?mt=8
To start with, I would like to create just the moving text. I have looked at various concepts such as Core Animation, Text View, Segue from one view controller to another etc. But none of them seem to be able to display the moving text in the proper "teleprompter way".
I would really appreciate suggestions as to how to start/which relevant concepts to look at in this context.
Try reading up on UIDynamics, UIPushBehavior.
https://developer.apple.com/reference/uikit/uidynamicanimator

Apple Rules about UINavigationBar [closed]

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I am new in app development. Question is about Apple rules and application rejection.
Can I use two UINavigationBar (different functionality), one below one? Does Apple's rules accept that?
This is App Store Review Guidelines. There are no words about rejecting for several UINavigationBar. But there is a below phrase.
If your user interface is complex or less than very good, it may be
rejected
I can definitely tell you it's against the HIG, since
A navigation bar appears at the upper edge of an application screen, just below the status bar.
(Since one of your navigation bars wouldn't be at the upper edge of the screen).
Will your app actually get rejected? There's only one way to find out, but I would suggest not committing such a heinous crime against the principles of aesthetics and design.

Supporting printer in a iPhone application [closed]

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How can we support printer in a iPhone application? I want to print a page from my application. Do I need to code for this in my app or this is a default operation supported by IOS. I am using IOS 4.3 & above.
Look at the Drawing and Printing Guide for iOS.
iOS can only print to "AirPrint" printers of which there aren't many. There are some apps that run on OS X that will "AirPrint enable" any attached printer. I use Printopia (no affiliation other than as a happy user). There are some free ones but I haven't had as much success with them.
It's always a good idea to google your question first :)
Everything you need to know:
http://developer.apple.com/library/ios/#documentation/2DDrawing/Conceptual/DrawingPrintingiOS/Printing/Printing.html

Where to start on interface development? [closed]

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I maintain an app for my business and am pretty much self-taught on code. I understand all of the structural code, and everything is perfectly usable. My problems is with the overall boringness of the looks. Everything is stock iOS from buttons to backgrounds to pinstripes on the list view. Does anyone have any guides or tutorials they used to take a stock iOS app's look to something like the Piictu app? (I'm not looking for something that impressive but in between that and stock iOS; and I'm open to a full app re-start.)
Almost all of controls can be customized with the view properties. and also there are lots of fully customized controls published with its source code.
With iOS5 there is a lot more scope now for customisation of UIKit elements. However, where this is not custom enough for your design then you would need to write your own controls rather than only using Apple'. There are a few good ADC videos on this.

Using Webkit for building iOS Native UI [closed]

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Had read somewhere that we can build native UI with the Webkit Framework... Is it possible by any means??
Or the use of webkit framework only limited for Webviews in iOS development?
Thanks in Advance.
You will not be able to use native controls with Webkit. However, if you want native looking controls in a UIWebView, try Sencha Touch.
You can use UIWebView in your native app but everything inside it will be HTML/CSS will all its limitations like security, limited and not that native look-n-feel, etc.