O'Reilly Answers

Topics: programming

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

  ---

• Put the Mouse Down and Step away from the Keyboard

  

  By BurkHufnagel : 17 March 2010 - 07:10 PM

  You've been focused for hours on some gnarly problem and there's no solution in sight. So you get up to stretch your legs, or to hit the vending machines, and on the way back the answer sudden...

  Tags:

  • regular expressions
  • excerpt
  • 97 things
  • programming

  1Vote

  0Comments

  ---

• What do you look for in an ORM?

  Asked by KBenson : 17 March 2010 - 02:16 PM

  

  Answered by monkeyvegas : Mar 18 2010 01:21 AM
  While I would dispute the need for another Perl ORM (what with Fey[::ORM], DBIx::Class, DBIx::DataModel, Class::DBI, ORLite, etc, etc), here are a few things I would need: * Automatic Class generatio... full answer >

  Tags:

  • perl
  • programming
  • ORM

  1Answer

  0Comments

  ---

• Make Interfaces Easy to Use Correctly and Hard to Use Incorrectly

  

  By adfm : 17 March 2010 - 09:24 AM

  When designing an interface you'll want to make sure it's easy to use and hard to use correctly. In this excerpt from 97 Things Every Programmer Should Know contributor Scott Meyers urges interface de...

  Tags:

  • programming
  • interface
  • API
  • GUI

  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 start programming in Android

  

  By macslocum : 02 March 2010 - 06:00 AM

  Android has taken big steps over the last year. What began as a promising but little-implemented operating system has matured into a strong OS powering a slew of mobile devices. It's also coming to ta...

  Tags:

  • Android
  • Tony Hillerson
  • programming
  • mobile
  • mobile programming
  • open source

  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

  ---

• What books are close at hand in your office?

  Asked by marygrace : 03 December 2009 - 03:16 PM

  

  Answered by BrianSawyer : Dec 04 2009 06:27 AM
  Here's a slightly out-of-date shot of my bookshelf, but it should be enough to give you an idea on what I work on every day. :-) [attachment=549:bookshelf.jpg] full answer >

  Tags:

  • books
  • programming
  • bookshelf
  • head first
  • missing manual
  • make
  • digital media

  3Answers

  0Comments

  ---

• shell programming for loop

  Asked by dondasanjay : 27 November 2009 - 08:31 PM

  

  Answered by KBenson : Nov 29 2009 09:55 PM
  For bash: Use double parenthesis to indicate you want ARITHMETIC EVALUATION (see the bash man page) if you are looking for a traditional C-style loop: $ for ((i=1; i<10; i++)); do echo $... full answer >

  Tags:

  • for loop
  • programming
  • shell

  1Answer

  0Comments

  ---