From GameOver

Contents 1 Introduction 2 Screenshots 3 Requirements 4 Packaged Files 5 Source Code 5.1 README 5.2 helloWorld.h 5.3 helloWorld.m 5.4 main.m 5.5 Makefile

Introduction

The infamous Hello World program. A simple window that displays the white text Hello World with a blue background.

Screenshots

Requirements

This program requires the iPhone Toolchain to compile. You can view how to obtain and install it here.

Packaged Files

For your convenience this projects source code and compiled code is avaiable for download in the following formats: tar.bz2, zip

Source Code

README

All files contained herein are under the copyright notice and license contained below. It is omitted from each individually displayed file for redundancy purposes only.

	helloWorld - iPhone basic "hello world" application.
	Copyright (C) 2007 David Supuran <http://www.iphonegameover.com>

	This program is free software: you can redistribute it and/or modify
	it under the terms of the GNU General Public License as published by
	the Free Software Foundation, either version 3 of the License, or
	(at your option) any later version.

	This program is distributed in the hope that it will be useful,
	but WITHOUT ANY WARRANTY; without even the implied warranty of
	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
	GNU General Public License for more details.

	You should have received a copy of the GNU General Public License
	along with this program.  If not, see <http://www.gnu.org/licenses/>.

helloWorld.h

#import <Foundation/Foundation.h>
#import <UIKit/UIKit.h>
#import <UIKit/UIApplication.h>

@interface helloWorld : UIApplication {

}

- (void) applicationDidFinishLaunching: (id) unused;

@end

helloWorld.m

#import <CoreFoundation/CoreFoundation.h>
#import <Foundation/Foundation.h>
#import <UIKit/UIWindow.h>
#import <UIKit/UIView-Hierarchy.h>
#import <UIKit/UIHardware.h>
#import <CoreGraphics/CGColor.h>
#import "helloWorld.h"

@implementation helloWorld


- (void) applicationDidFinishLaunching: (id) unused
{
	/* RGBA - Red Blue Green Alpha color defintions */
	float blue[4]		= { 0.0f, 0.0f, 1.0f, 1.0f };
	float white[4]		= { 1.0f, 1.0f, 1.0f, 1.0f };

	struct CGRect rect	= [UIHardware fullScreenApplicationContentRect];

	rect.origin.x		= rect.origin.y = 0;

	/* Initialize the main window */
	UIWindow* window	= [[UIWindow alloc] initWithContentRect: rect];
	[window orderFront: self];
	[window makeKey: self];
	[window _setHidden: false];

	/* Initialize the main view */
	UIView* mainView	= [[[UIView alloc] initWithFrame: rect] autorelease];
	[window setContentView: mainView]; 

	/* Initialize a text label with static, uneditable text */
	UITextLabel *_title = [[UITextLabel alloc] initWithFrame: rect];
	[_title setText: @"Hello World!"];
	[_title setBackgroundColor: CGColorCreate(CGColorSpaceCreateDeviceRGB(), blue)];
	[_title setColor: CGColorCreate(CGColorSpaceCreateDeviceRGB(), white)];
	[_title setCentersHorizontally: true];
	[mainView addSubview: _title];

}

@end

main.m

#import <UIKit/UIKit.h>

#import "helloWorld.h"

int main(int argc, char **argv)
{
	int ret;

	NSAutoreleasePool *pool	= [[NSAutoreleasePool alloc] init];

	ret	= UIApplicationMain(argc, argv, [helloWorld class]);

	[pool release];

	return ret;
}

Makefile

NAME	:= helloWorld
VERSION := 0.1

CC	:= arm-apple-darwin-gcc
CFLAGS	:= -Wall -pipe -ansi -O3
LD	:= ${CC}
LDFLAGS	:= -lobjc -framework CoreFoundation -framework Foundation -framework UIKit -framework LayerKit -framework CoreGraphics

all:	${NAME}

helloWorld:	main.o ${NAME}.o
	$(LD) $(LDFLAGS) -o $@ $^

%.o:	%.m
	$(CC) -c $(CFLAGS) $(CPPFLAGS) $< -o $@

clean:
	rm -f *.o ${NAME}