Code With Design

In this tutorial I will be going through how to get and install Xcode, Create a new project, and run that project through the console. This is not an application tutorial it is purely objective-c.

The first thing that I will be showing you in this tutorial is where to get Xcode. First thing you should know is that Xcode does come on all new copies of OS X. If you do not have it already installed or you would like the new version, which I strongly recommend, that comes with the IPhone SDK. You can download it from the Apple website.

Note: This is the Iphone SDK. It is a rather large file but it will come with the latest version of Xcode.

Now we are going to start this tutorial by creating a new project. The project type that we will be creating is a simple hello world from the console. To do this you will need to start up Xcode, click new project. When the new project window appears, you should have a screen that looks like this.

Make sure that you have selected applications > console. This is important for what we will be doing. Also note that the language is set to C. We do not want this, instead we would like to use Objective C. Click down on the menu and select “Foundation.”

Now you should be ready to continue on with the introduction. Name the project “codewithdesigntest” and create the new project.

A window will appear now and this is where you will be working with code. There is one window that is not open that we will need open. This window is the console; it allows us to see what is being displayed as an output. In order to open it press (Command + Shift + R) or you can find run > console on the menu bar at the top of the screen.

The file extension for objective C is nice and simply “.m” which is the equivalent of .cpp, .java etc. In the top section of the screen you can see there are a bunch of files natively given to the programs build. We are going to open up the “’codewithdesigntest.m” by single clicking it. It should open in the bottom section of the screen.

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#import 
 
int main (int argc, const char * argv[]) {
    NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];
 
    // insert code here...
    NSLog(@"Hello, World!");
    [pool drain];
    return 0;
 
}

Because the code is already setup and ready to run your hello world in the console, the only thing that is required is for you to run the code. At the top of your screen press the button build and run. Now make sure you can see the console on the screen, this will display your output.

If at the bottom it said build successful and closed normally then you are ready to continue on to learning Objective C.