Software Engineering Stack Exchange
Software Engineering Stack Exchange

Questions tagged [ios]

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

iOS is the name of Apple's mobile operating system that can be found in the iPhone and iPad devices.

Questions in this category may refer to issues that are:

  • specific to the operating system itself
  • specific to the situations in which it is being used
  • specific to development on these devices as far as it is affected by the operating system
411 questions
3
votes
1 answer

What's the best way to efficiently build an iOS App with thousands of small resource files?

I have an iOS app that currently has over 2500 images. These are generated into an asset catalog to make use of thinning (2500 x 5 variants = lots of files). The files are largely accessed at random. Batches of files will be downloaded via in-app…
dave
  • 2,466
3
votes
0 answers

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 putting code that does NSFetchRequests in transient…
occulus
  • 602
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  • 11
2
votes
2 answers

Weird UIView transforms in Retina iPhone

I'm having a problem I don't understand. I'm developing an OpenGL app for iOS. Because at some points I want to force the orientation of the view programatically, and Apple for whatever reason doesn't make it easy (or even possible), I'm doing it by…
ggambetta
  • 1,214
1
vote
1 answer

Developing view controllers deep in the navigation hierarchy

I'm wondering how other people approach the problem of working on a particular screen in an iOS app that is, for example, behind a login screen and requires a lot of interaction to navigate too. It can make the development process quite long and…
Darren Findlay
  • 641
1
vote
1 answer

Can iOS Apps receive and play burst audio in the background like a walkie talkie?

I'm digging into background audio playing for iOS Apps. I do see a bunch of examples for doing continuous audio playing for background Apps. I wanted to add walkie-talkie like features to my current App, which would need the following: The App is…
Mikey A. Leonetti
  • 297
1
vote
1 answer

How is MTU determined and can it be changed

I'm developing a multi-part solution that consists of an iOS application and OS X application which communicate over Bluetooth Low Energy. Everything works fine and I can send moderate amounts of text between the iPhone and my MacBook. I would like…
Dewey Vozel
  • 121
1
vote
1 answer

question related to iPhone programming certification

Dear All, I am working for iOS application developement. Now am considering to go for certification in iOS application development. I am thinking about expertrating.com. Please guide me if you know any other certification in iOS…
Sambit
  • 27
1
vote
1 answer

What is the purpose of whitelisting in Phonegap? Is there a way around it?

I am using the new phonegap 1.5.0 (which is confusingly renamed cordova despite no mention of the rename on the phonegap site), and I'm finding that the white-listing feature on iOS is quite restrictive. I understand that having a whitelist is more…
wmute
  • 113
  • 3
0
votes
1 answer

iOS: Multiple images or single scaling image

I have a fiery debate running in the office. We have an app with two buttons of different size. (One is 40 px wide and one is 150 px wide). They have the exact same look in terms of background image. I would like to know which is best practice: 1:…
Daniel Retief Fourie
  • 143
0
votes
1 answer

iOS In-App Purchases with dynamic content

I want to built an app that it will support In-App Purchases. In short, user will download the app (with some basic features), and he will have the ability to download extra layers (delivery content) with additional info (e.g. a recipe). I want…
Panos Bariamis
  • 151
  • 4
0
votes
1 answer

How to continue development without the webservice?

We make iOS apps where we often get data in a list from an API, then we select the data and go to the next ViewController. Often it happens that the server is down or some API is not ready. What is a good development practice where we can continue…
Amogh Talpallikar
  • 2,035
0
votes
1 answer

iOS build machine setup: problem with certificates

some background: work with multiple team mates each work on our own MBP I'm setting a build machine that we can git push to in order to generate a build (aim to allow anyone to push to the build machine and then generate an archive, upload to…
cbrulak
  • 367
-1
votes
1 answer

Resources for creating a turn-by-turn navigation system

I'm trying to create a kind of turn-by-turn satellite navigation system using the iOS SDK. I get the directions from the server and draw them on the map, then I keep getting location updates from the iPhone's GPS chip. Currently I start by finding…
benwad
  • 117