iOS Dev (11) 创建一个简单的 UIViewController

iOS Dev (11) 创建一个简单的 UIViewController

• 作者：CSDN 大锐哥
• 地址：http://blog.csdn.net/prevention

创建一个 Empty Project

略

创建一个简单的 UIViewController

首先创建一个这样的类的头文件：

#import <UIKit/UIKit.h>

@interface MyFirstViewController: UIViewController

@end

再创建一个源文件 .m：

#import "MyFirstViewController.h"

@interface MyFirstViewController ()

@end

@implementation MyFirstViewController

- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
    self = [super initWithName:nibNameOrNil bundle:nibBundleOrNil];

    if (self) {
        // customized codes
    }

    return self;
}

- (void)viewDidLoad
{
    [super viewDidLoad];
    self.view.backgroundColor = [UIColor whiteColor];
}

- (void)didReceiveMemoryWarning
{
    [super didReceiveMemoryWarning];
}

@end

AppDelegate 写成啥样？

.h 文件还是老样子

.m 文件呢？

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
    self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds];
    self.window.rootViewController = [[MyFirstViewController alloc] initWithNibName:nil bundle:nil];
    self.window.backgroundColor = [UIColor whiteColor];
    [self.window makeKeyAndVisible];
    return YES;
}