[m_alexandro121]

well i just fill all info to get started with the SDK.

so my question heres is how difficult it is to create an app? what do i need( beside the sdk package), an most of all, what knowledge do i need to have?

hope to helpme

[Broomhead]

moved

[calingasan]

Here is what i've learned so far. The language commonly used is objective-c which is a super set of c language. Knowing how to program in c doesn't mean that you can go right ahead and start developing in xcode using the sdk. objective-c as the name says made it possible for c language, a non object oriented programming langue to be object oriented. This means that you have to know and make use of their header files that makes c object oriented. The sdk, i think, is just another header you make use of to create iphone apps.

Start with learning objective-c language, there are lots of ebooks and reference out there, and then continue on learning how to code in the sdk because most of the tutorials out there about programming with the iphone sdk usually assumes that you have some sort of knowledge on using objective-c.

So my friend, the key to being a good iphone app developer, to my opinion is learning objective-c.

If your into game development it would also be a good idea to learn openGL.

[NetMage]

Close... but wrong terminology

Instead of header files say frameworks. The various frameworks are object oriented libraries that provide access to system resources and common application functionality such as user interface controls, strings, file handling, etc.

The SDK is a development environment with an iPhone emulator, a couple of compilers, an IDE, an Interface Builder and debugger. Think Apple's version of Visual Studio.

Apple Developer Connection is a good place to see tutorials and learn about the OS X specific frameworks as well as Objective C in general.

As the object-oriented portions of Objective-C are essentially the Smalltalk language grafted on top of C, there is not much syntax to learn - Smalltalk has one of the simplest language syntaxes out there.

[calingasan]

Thanks for correcting me. ^. However i get confused with how they make use of pointers when it comes to classes and how objective-c usually brew with more than 1 file. I would appreciate it if you could explain to me your ideas on the basic structure of objective-c package.

cheers!