iPhone Tutorials

Directory Structure for iPhone Applications

  • 2010-09-05
  • Comments
  • Jonathan Zdziarski
  • 2942

Apple came up with an elegant way to contain applications in their operating system. As OS X is a Unix-based platform, Apple wanted to make it adhere to basic Unix file conventions, and so the resource forks of olde were no longer sufficient (or efficient, for that matter). The challenge was to design a structure that would allow an application to remain self-contained while surviving on a file system that didn't believe in cheapening its architecture with proprietary workarounds. The answer came from an older ancestor of Mac OS X named NeXT, which treated an application as a bundle represented within a directory. The bundle concept introduces an approach to group application resources, binaries, and other related files.
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Multitasking in iPhone 4 - iOS 4

  • 2010-08-26
  • Comments
  • Brad Lee
  • 2942

iOS 4 delivers seven new multitasking services that allow your apps to perform tasks in the background while preserving battery life and performance. These multitasking services include:
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Making an HTTP Connection in iPhone Application

  • 2010-09-06
  • Comments
  • Jonathan Zdziarski
  • 2942

You can use the CFHTTP API to create an HTTP request. This allows you to easily invoke HTTP GET, HEAD, PUT, POST, and most other standard requests. Creating a request involves the three-step process of creating the request object, defining the HTTP request message and headers, and serializing the message into raw protocol. Only HTTP POST requests generally contain a message body, which can contain POST form data to send. All other requests use an empty body while embedding the request parameters into the headers.
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Making an FTP Connection in iPhone Application

  • 2010-09-06
  • Comments
  • Jonathan Zdziarski
  • 2942

The CFFTP API is similar to the CFHTTP API, and relies on read streams to transmit FTP data. To create an FTP request, use the CFReadStreamCreateWithFTPURL function, as shown below. This will create the initial read stream to the FTP server:
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Making an HTTP Connection in iPhone Application

Making an FTP Connection in iPhone Application

Directory Structure for iPhone Applications

Multitasking in iPhone 4 - iOS 4

Archived Comments

1. Interesting introduction...thank you
View Tutorial          By: arun at 2010-04-05 05:59:34

2. Its of the type "Direction"...Enum type
View Tutorial          By: Avinash at 2010-10-29 04:53:35

3. Excellent.
Just one question... What is the

View Tutorial          By: HeilGates at 2010-08-04 13:38:12

4. Excellent Example...... To understand the concept
View Tutorial          By: SUNNY at 2009-02-24 23:41:04

5. Thanks Friend it was very helpfull.
View Tutorial          By: UMAR FAROOQ at 2015-03-01 07:46:43

6. It works like a charm. Thanks a lot.
View Tutorial          By: Balram at 2008-08-22 21:18:44

7. sooo nice...:****...love u...
View Tutorial          By: vinoo gopal rao at 2011-07-03 08:54:29

8. Great examples Eric! Really helped me out a lot, m
View Tutorial          By: Markus at 2008-11-12 05:27:05

9. Example:

String sOne = "hello

View Tutorial          By: Adam at 2009-11-10 12:55:51

10. Good
View Tutorial          By: PRANJAL at 2015-08-14 16:38:57