随机色

#import "AppDelegate.h"

#import "code-ViewController.h"

@interface AppDelegate ()

 

@end

 

@implementation AppDelegate

 

- (void)dealloc

{

    [_window release];

    [super dealloc];

}

 

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {

    self.window = [[[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]] autorelease];

    // Override point for customization after application launch.

    self.window.backgroundColor = [UIColor whiteColor];

    

    code_ViewController *code = [[code_ViewController alloc]init];

    self.window.rootViewController = code;

    [code release];

 

    [self.window makeKeyAndVisible];

    return YES;

}

 

 

 

#import "code-ViewController.h"

#import "TouchView.h"

@interface code_ViewController ()

 

@end

 

@implementation code_ViewController

 

- (void)viewDidLoad {

    [super viewDidLoad];

    // Do any additional setup after loading the view.

    

    TouchView *view = [[TouchView alloc] initWithFrame:[[UIScreen mainScreen]bounds]];

    view.backgroundColor = [UIColor blueColor];

    [self.view addSubview:view];

    [view release];

   

}

 

- (void)didReceiveMemoryWarning {

    [super didReceiveMemoryWarning];

    // Dispose of any resources that can be recreated.

 

}

 

 

 

 

#import "TouchView.h"

 

@implementation TouchView

 

 

// 取随机颜色

- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event

{

    int random1 = arc4random() % 256;

    int random2 = arc4random() % 256;

    int random3 = arc4random() % 256;

    

    self.backgroundColor = [UIColor colorWithRed:random1/255.0 green:random2/255.0 blue:random3/255.0 alpha:1.0];

}