Questions about issues that are specifically related to Apple's iOS operating systems (whether directly or indirectly).

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16
votes
7answers
4k views

Is there a technical reason why you can't develop iOS apps on a Linux computer?

I understand why you can't develop OS X apps on a Linux computer, but is there a good technical reason why you can't develop iPhone and iPad apps on Linux? Why isn't it possible to compile iOS source ...
0
votes
1answer
128 views

The ViewController design in iOS vs MVC in tradiational web apps design

As I came from the background of webapps and move to iOS programming, I am wondering why we can't just apply the MVC design approach to native apps, i.e. in iOS, the view and controller are tightly ...
-2
votes
0answers
37 views

UI text field is not setting value in iOS [closed]

I have following code: -(BOOL) textFieldShouldReturn:(UITextField *)textField { if(textField.tag == 101) { NSLog(@"Text in the name fld..%@",[textField text]); NSString *textValue = ...
1
vote
3answers
92 views

Reliable secure data exchange between service written on .NET and an iOS client app

I have a service written on .NET working on a company server. It designed to do a very simple thing, to receive a request via WCF named pipes from another service working locally on the same server, ...
0
votes
0answers
33 views

offline application development for mobile devices

I am looking to develop an application whereby field staff can complete forms in an offline capacity (when onsite I`m assuming no internet connection) on an Apple or Android device and post the ...
0
votes
3answers
894 views

iOS chat application design, sending/relaying the message over to the end user

I have a design question. Let us say you were tasked with building a chat application, specifically for iOS (iOS Chat Application). For simplicity let us say you can only chat with one person at a ...
1
vote
0answers
93 views

Design for an application framework that will allow each implementation to customize parts of the UI

I am tasked with designing an application framework that will allow each implementation to customize parts of the user interface. One such example would be that the implementation (let's call it ...
1
vote
1answer
457 views

Possible to Comment on a storyboard?

I recently started working for a company that has me making mockups for an app they'd like to see converted to an iPhone app. I have not been informed as to how all the boards fit together, but I do ...
4
votes
1answer
92 views

Register user in mobile app without e-mail

We are currently developing an app for Android and iOS which requires the user to perform a registration. However we don't want the user to go through all this e-mail and password activation link ...
9
votes
1answer
283 views

Naming convention for iOS/OSX open-source projects

Not always but most of the time, you will find iOS or Mac OS X open-source projects with names starting with the initial letters of the author first and last names. If a project were to be authored by ...
1
vote
4answers
246 views

How to ensure multiple clients don't poll the server at the same time?

I am making an android app which will talk to a web service to get data. The web service has a rate limit of 100 calls per minute. Is there a way, recommended method to ensure that the app across ...
0
votes
0answers
15 views

Do iOS frameworks require the same internal versioning as OSX frameworks?

I have been reading through the apple documentation for creating frameworks for OSX and iOS. Reading about the structure of frameworks, I began to wonder if there is really any need to create the ...
4
votes
1answer
182 views

“Middle ground” architecture for client-server iOS apps?

I see two obvious approaches to the architecture for an iOS app which needs to talk to a server to do its job. Pretend to be a web browser Under this approach, the app fetches a chunk of data ...
0
votes
4answers
127 views

Security in an iOS game?

I'm part of a team building an iOS game which has multiplayer elements. A concern right now is how to make the game more secure, from user manipulation. I know there's a lot of multiplayer games out ...
0
votes
2answers
253 views

Snapchat clone: How do I secure pre-downloaded notifications so that they cannot be opened outside of the app?

Say I'm making a snapchat clone app for Android and iOS. Let's say that I get a snapchat from Baz. I want to pre-download the audio for this snapchat. However, as the developer, I want to secure this ...
2
votes
2answers
156 views

What is a good design pattern to implement REST services on mobile?

It is easy to implement calls to API endpoints, then to parse JSON and handle the data - but what is a good design pattern for this? Here are some ways I have tried but I feel like there should be a ...
0
votes
1answer
55 views

What effect does using multiple childViewControllers views inside a ContainerViewController have on memory?

I have three childViewController views inside my ContainerViewController and these three views are inside a horizontal scroll view. My intention is to build an app that has a custom camera on one ...
0
votes
0answers
202 views

How to add document directory path in javascript file in iOS -MetaIO SDK

I am working on a project using MetaIO SDK (AREL). It works fine with all the files in the package (ipa), but I'm trying to download an animation automatically using a web service. It will be ...
2
votes
4answers
541 views

How to develop cross platform mobile applications with native UI and Javascript backend?

I want to build a cross platform(Android, iOS, Windows) mobile application. I want the UX of the application to be different on the different platforms so that it will be more platform specific and ...
0
votes
1answer
60 views

Lazy-initialization vs preprocessing in image-based iOS app

I am making an iOS app which contains museum gallery: user can look through exhibits and then select info about it, etc. On the exhibit screen I have two ScrollViews that are different, but are being ...
1
vote
2answers
307 views

Can XCode work with TFS?

We have been using Team Foundation Server (TFS) for source code management of our solution which contains components for a number of platforms - asp.net, windows & android so far. We now wish to ...
1
vote
2answers
78 views

Architecture for application-wide diagnostic-gathering tool?

My product owner wants us to report more information on the state of the product when a user contacts customer service through an in-app form. The form eventually results in an email being sent to a ...
6
votes
2answers
1k views

Why does Apple only allow for Static Frameworks on iOS?

Clearly Apple has the ability to create dynamically loaded libraries (known as frameworks) for iOS, as they ship several with XCode (such as UIKit). App developers only have the ability to create ...
4
votes
1answer
291 views

What are the benefits of Android way of “saving memory” - explicitly passing Context objects everywhere?

Turned out, this question is not easy to formulate for me, but let's try. In Android, pretty much any UI object depends on a Context, and has defined lifetime. Android can also destroy and recreate UI ...
1
vote
0answers
29 views

New project from a third party and documentation [duplicate]

I'm going to become the custodian of an iOS project developed by a third party and my boss just asked me for a list of documentation that I think we should be asking the third party for when they hand ...
0
votes
0answers
54 views

Can PhoneGap and RoboVm work in harmony?

The Goal is to make an iOS app using phonegap and java. When writing phonegap plugins that interact with native code (objective-c) would it be possible instead to make it interact with java when using ...
7
votes
3answers
655 views

How exactly to use the MVC design pattern

I have read the documentation on the apple's developer website which refer following guidelines A view class shouldn't depend on a model class (although this may be unavoidable with some custom ...
1
vote
2answers
107 views

Android SDK and Iphone SDK limitations

I have an idea that would require triggering a call or text message simply by pressing or dialing a certain number. Example: Pressing 2324 on the pin code. Despite it not being your pin code to ...
0
votes
1answer
145 views

Approach to managing multiple services like Evernote, Google drive, dropbox in iOS

I'm trying to think up a scenario when I'd have three different forms of NSData (or whatever) to be sent to three different services like Evernote, Google drive, Dropbox. Granted, each of those has ...
0
votes
0answers
54 views

VPN system to analyze users traffic (onavo-like)

I would like to develop a system that is able to analize the network traffic of people using it. I am interested in the URLs that the users request. Let's say the users targeted are on iOS or Android ...
3
votes
1answer
196 views

IOS app updates that don't require App Store submission

Some apps, I've noticed that developers are able to update their software without submitting them to the App Store. For example, Game of War will occasionally tell you that an update is available ...
5
votes
1answer
2k views

Which mobile development platform is easiest to develop? [closed]

From your experience in developing mobile apps, which mobile development platform is easiest to develop? iOS, Android or WinPhone 7? And why would do you think it is the easiest? If you can order it ...
0
votes
2answers
794 views

iOS App Store Developers - What is the 'copyright name' of an app?

I understand that whenever you upload a new app, you can set the copyright name for the app. Where is this name displayed? Is this name displayed underneath the name of the app when searching in the ...
0
votes
1answer
165 views

Does my use of the strategy pattern violate the fundamental MVC pattern in iOS?

I'm about to use the 'strategy' pattern in my iOS app, but feel like my approach violates the somehow fundamental MVC pattern. My app is displaying visual "stories", and a Story consists (i.e. has ...
10
votes
3answers
902 views

What is the most cross-browser/system compatible option for 3d graphics on a web page?

I would like to develop a bit of functionality for a web site that involves a bit of 3D - the user can move around objects, rotate them and texture them. So far I've looked into: WebGL (in ...
2
votes
0answers
55 views

Core Data: is performing NSFetches in transient property code bad? Why?

In Core Data, we can put transient properties in our entity objects (or categories on our entities). These transient properties can calculate transient data based on actual entity properties. Is ...
0
votes
1answer
76 views

Drawbacks to redefining method in precompiled header

I have a lot of calls to NSLog(...). I need to change all of these calls to CLSNSLog(...). So I added this to my precompiled header (.pch): #import <CrashlyticsFramework/Crashlytics.h> #define ...
0
votes
0answers
126 views

Manage the persistence of entities on iOS in several places: CoreData on the device, iCloud and on a REST API

For the needs of a project, I would persist the datas contained in Core Data in several places depending on the state of the user. If the user is logged to my API -> Persist the datas on my API. ...
1
vote
0answers
317 views

What are the bad points of using Core Data for iOS like an ORM

I just starting to use Core Data for my iOS app and I am thinking about how use Core Data for my needs. What are the features of my app: The user look for products proposed from a catalog. The user ...
2
votes
4answers
2k views

Is there any way to get faster app reviews? [closed]

I am trying to build a business around an iPhone app. The app will be our main sales channel, and being able to adapt the sales channel faster than the 9-10 days delay cause by the app review times is ...
-1
votes
1answer
334 views

Questions to ask to ensure someone understands programming? (and iOS) [closed]

So, I've been tutoring my friend for 2 years. Most people learn programming on their own in 3-6 months, (sans algorithms). It's confusing 'cause he'll run anywhere I tell him to, understands how to ...
-1
votes
1answer
93 views

Where does one draw the line between inspiration and plagiarism? [closed]

Suppose one would like to use in an iOS app only one function from a GPLv3 library that contains a large number of them. One cannot simply link the whole library beacuse otherwise the resulting ...
0
votes
2answers
210 views

Is there a download limit to ios apps?

With reference to iOS 7. I couldn't find any Apple documents with regards to this. Are we able to download any size of documents and manage them ourselves (within our app say < 100MB)? Example, we ...
0
votes
0answers
37 views

What is the best solution for an API class that could have different end points? (iOS)

What is the best approach for creating a singleton API class, where different requests could call different api providers and how to manage this? For instance you might have a singleton class 'API' ...
0
votes
2answers
334 views

Why does the Mailbox app need their own backend?

I am only coding in Objective-C and I have no experience with backend coding, only a high-level understanding. I understand why a lot of programming projects require backend servers but I'm not ...
1
vote
1answer
188 views

Create an Objective-C category to route methods depending on a specified type

For one project, I needed to find a solution to avoid code like this: if ([self.desiredColor isEqualToString:@"Red"]) [self constructRedMenu]; else if ([self.desiredColor ...
1
vote
2answers
252 views

In an event-driven environment, how should a “cancel” function abort all further events?

In my iOS app, things are mostly driven by events. The user presses a button The app listens for an external device to be connected to the iOS device Once the device is detected (is connected), an ...
2
votes
0answers
180 views

Are Calls to a WCF Service via JSONP Secure?

I am looking at developing a complete HTML5/JS mobile app that can be deployed to Android, iOS and Windows platforms. I am using DevExtreme tools to help me do that. I already have a WCF service that ...
1
vote
1answer
95 views

Is it bad practice to include two types of views in the same class?

In my app, I use a widget with a loading spinner to signify that a network request is waiting. On failure, there will be another view which contains a failure message and a "Reload" button. My ...
0
votes
1answer
338 views

Upgrading an app to support iOS5, 6 and 7

We are looking at an app that needs an upgrade. Currently it runs on iOS4, 5 & 6. The upgrade will move to iOS5, 6 & 7. It will also involve some UI changes and new features. I've been reading ...