O'Reilly Answers

Topics: objective-c

Feed subscription    Email subscription    Questions Only Feed    Questions Only Email

Please sign in or register to post.

Please sign in or register to post.

• How to check the status of the network connection from your iPhone App

  

  By Alasdair Allan : 22 March 2010 - 03:46 AM

  Before your application attempts to make a network connection you need to know whether you have a network available, and depending on what you want to do you might also want...

  Tags:

  • Objective-C
  • Programming
  • iPhone
  • Network Connection
  • Reachability

  1Vote

  0Comments

  ---

• Calling self.object rather than calling the object directly in Objective-C

  

  By Alasdair Allan : 17 March 2010 - 03:03 AM

  There is a great deal of debate inside the objective-C community right now about the dot syntax, and one of the things this has recently thrown up is the question what the difference is, and when you ...

  Tags:

  • Objective-C
  • Programming
  • iPhone
  • Dot Syntax
  • Accessors

  2Votes

  0Comments

  ---

• How to build an iPhone App that uses Geolocation

  

  By Alasdair Allan : 07 December 2009 - 04:23 AM

  The sample code (660KB) to accompany the screencast. Core Location is one of the great things about the iPhone and iPod touch platform, but until recently it was actually q...

  Tags:

  • GPS
  • Objective-C
  • Programming
  • Sensors
  • iPhone
  • CoreLocation

  2Votes

  0Comments

  ---

• How to Build and Test an iPhone App that Uses the Accelerometer

  

  By Alasdair Allan : 07 December 2009 - 04:13 AM

  The sample code (646KB) to accompany the screencast. The iPhone's accelerometer measures the linear acceleration of the device so can report the roll and pitch, but not the ya...

  Tags:

  • Objective-C
  • Programming
  • Sensors
  • iPhone
  • Accelerometer

  2Votes

  1Comment

  ---

• How to get C++ and Objective-C to play nicely in XCode

  

  By Paul Zirkle : 10 November 2009 - 09:28 AM

  If you're like me, developing games for the iPhone, you need to merge the utility of the Cocoa interface using Objective-C with the performance (and possibly existing code-bases) of C++. When you...

  Tags:

  • XCode
  • C++
  • CPP
  • Objective-C
  • ObjC
  • .MM
  • .M
  • .H

  2Votes

  0Comments

  ---

• HTML/CSS/JavaScript or Objective-C/Cocoa for iPhone app development?

  Asked by bjepson : 10 November 2009 - 08:02 AM

  

  Answered by mikebaas : Nov 10 2009 08:35 AM
  Cocoa/Objective-C, since the HTML/CSS/Javascript/PhoneGap method precludes your app from being able to be sold on the iTunes Store, correct? full answer >

  Tags:

  • javascript
  • css
  • html
  • objective-c
  • cocoa
  • html5
  • iphone

  2Answers

  3Comments

  ---

• Use iPhone Core Data Templates

  

  By tobyjoe : 06 November 2009 - 07:03 PM

  The iPhone 3.0 update to the iPhone OS and iPhone SDK included a great new feature, ported from Mac OS X, called Core Data. Core Data is used to store objects in a local database that can be...

  Tags:

  • iPhone
  • data
  • templates
  • objective-c
  • sqlite

  0Votes

  0Comments

  ---

• What sets Head First iPhone Development apart from other books

  

  By marygrace : 05 November 2009 - 10:15 AM

  There are plenty of books around that will walk you through how to create an iPhone app, but none as helpful and intuitive as Head First iPhone Development. Authors Dan and Tracey Pilone recently sat ...

  Tags:

  • iphone
  • iphone app
  • iphone development
  • programming
  • objective-c
  • interface builder
  • xcode
  • iphone sdk

  0Votes

  0Comments

  ---

• How to Implement Core Location in an iPhone App

  

  By TheBarbarianGroup : 15 October 2009 - 03:49 PM

  The iPhone gives developers several methods of detecting the physical location of a device. This is by far one of its most innovative features and has helped create many new business models ...

  Tags:

  • iphone
  • core location
  • objective-c

  1Vote

  0Comments

  ---

• How to Access the Accelerometer on the iPhone

  

  By TheBarbarianGroup : 13 October 2009 - 12:57 PM

  The accelerometer built into the iPhone has proven to be a very popular feature, especially for game developers. The accelerometer lets the entire device be used as an input device, with its...

  Tags:

  • iphone
  • accelerometer
  • objective-c

  0Votes

  0Comments

  ---