1. AppDelegate

AppDelegate.h 文件

#import <UIKit/UIKit.h>@interface AppDelegate : UIResponder <UIApplicationDelegate>@property (strong, nonatomic) UIWindow *window;@property (strong, nonatomic) UITabBarController *tabBarController;@end

AppDelegate.m 文件

#import "AppDelegate.h"#import "ViewController.h"#import "AZImageViewController.h"@interface AppDelegate ()@end@implementation AppDelegate- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {        self.window = [[[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]] autorelease];//    ViewController *viewController = [[[ViewController alloc] initWithNibName:@"ViewController" bundle:nil] autorelease];//    self.window.rootViewController = viewController;        ViewController *viewController = [[[ViewController alloc] initWithNibName:@"ViewController" bundle:nil] autorelease];    AZImageViewController *imageViewController = [[[AZImageViewController alloc] initWithNibName:@"AZImageViewController" bundle:nil] autorelease];        self.tabBarController = [[UITabBarController new] autorelease];    self.tabBarController.viewControllers = @[viewController, imageViewController];    self.window.rootViewController = self.tabBarController;        [self.window makeKeyAndVisible];        return YES;}- (void)dealloc{    [_window release];    [super dealloc];}@end

2. ViewController

ViewController.h 文件

#import <UIKit/UIKit.h>@interface ViewController : UIViewController@property (retain, nonatomic) IBOutlet UILabel *status;- (IBAction)leftButtonPress:(id)sender;- (IBAction)rightButtonPress:(id)sender;- (IBAction)setStatusText:(id)sender;@end

ViewController.m 文件

#import "ViewController.h"@interface ViewController ()@end@implementation ViewController@synthesize status;- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil {    self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];    if (self) {        self.title = NSLocalizedString(@"First", @"First");        self.tabBarItem.image = [UIImage imageNamed:@"first"];    }    return self;}- (void)viewDidLoad {    [super viewDidLoad];    // Do any additional setup after loading the view, typically from a nib.}- (void)didReceiveMemoryWarning {    [super didReceiveMemoryWarning];    // Dispose of any resources that can be recreated.}- (void)dealloc {    [status release];    [super dealloc];}- (IBAction)leftButtonPress:(id)sender {     status.text = @"this is left btn";}- (IBAction)rightButtonPress:(id)sender {    status.text = @"this is right btn";}- (IBAction)setStatusText:(id)sender {        NSString *title = [sender titleForState:UIControlStateNormal];//    status.text = title;    NSString *newLableText = [NSString stringWithFormat:@"Hello, %@ btn", title];    status.text = newLableText;}@end

ViewController.xib 文件

3. AZImageViewController

AZImageViewController.h 文件

#import "ViewController.h"@interface AZImageViewController : ViewController@property (retain, nonatomic) IBOutlet UITextField *nameField;@property (retain, nonatomic) IBOutlet UITextField *numberField;@property (retain, nonatomic) IBOutlet UILabel *rateLabel;- (IBAction)textFieldDoneEditing:(id)sender;- (IBAction)backgroudTap:(id)sender;- (IBAction)sliderMove:(id)sender;@end

AZImageViewController.m 文件

#import "AZImageViewController.h"@interface AZImageViewController ()@end@implementation AZImageViewController@synthesize nameField;@synthesize numberField;@synthesize rateLabel;- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil {    self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];    if (self) {        self.title = NSLocalizedString(@"Second", @"Second");        self.tabBarItem.image = [UIImage imageNamed:@"second"];    }    return self;}#pragma mark - Custom Method- (IBAction)textFieldDoneEditing:(id)sender {    [sender resignFirstResponder];}- (IBAction)backgroudTap:(id)sender {    [nameField resignFirstResponder];    [numberField resignFirstResponder];}- (IBAction)sliderMove:(id)sender {        UISlider *slider = (UISlider *)sender;    NSInteger _rate = (NSInteger)roundf(slider.value);    rateLabel.text = [NSString stringWithFormat:@"%ld", _rate];}- (void)dealloc {    [nameField release];    [numberField release];    [rateLabel release];    [super dealloc];}@end

AZImageViewController.xib 文件

4. info_plist

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