UI07_导航视图控制器

AppDelegate.h

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

AppDelegate.m

#import "AppDelegate.h"#import "RootViewController.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]];    // Override point for customization after application launch.    self.window.backgroundColor = [UIColor whiteColor];    [self.window makeKeyAndVisible];    [_window release];    //  先创建一个视图控制器对象    RootViewController *rootVC = [[RootViewController alloc] init];    //  创建一个导航视图控制器    UINavigationController *naVC = [[UINavigationController alloc] initWithRootViewController:rootVC];    //  指定导航视图控制器成为window的根视图控制器    self.window.rootViewController = naVC;    //  内存管理    [rootVC release];    [naVC release];    return YES;}

RootViewController.h

#import <UIKit/UIKit.h>@interface RootViewController : UIViewController@end

RootViewController.m

#import "RootViewController.h"#import "SecondViewController.h"@interface RootViewController ()@end@implementation RootViewController- (void)viewDidLoad {    [super viewDidLoad];    // Do any additional setup after loading the view.    self.view.backgroundColor = [UIColor yellowColor];    //  通过两方面去设置naVC的样式    //  第一部分: 外观    //  修改背景颜色, 不是所有的背景颜色都是backgroundColor    //  设置成不透明, YES默认是半透明    self.navigationController.navigationBar.translucent = NO;#warning 导航视图控制器里的navigationBar默认是半透明效果, 但是不透明效果会修改坐标系的起点, 如果想要半透明效果, 为了让视图全部显示, 需要把坐标向下平移64//    self.navigationController.navigationBar.barTintColor = [UIColor redColor];//    UIScrollView *view = [[UIScrollView alloc] initWithFrame:CGRectMake(0, 0, 100, 100)];//    view.backgroundColor = [UIColor blueColor];//    [self.view addSubview:view];//    [view release];    //  第二部分: 内容    //  添加标题    self.title = @"天琴圣域";//    self.navigationItem.title = @"网易新闻";    //  中心位置添加一个视图    //  创建一个segment    UISegmentedControl *seg = [[UISegmentedControl alloc] initWithItems:@[@"通话", @"信息"]];    self.navigationItem.titleView = seg;    //  创建左右两边两个按钮    //  采用了系统默认的按钮样式进行创建    self.navigationItem.leftBarButtonItem = [[[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemCamera target:self action:@selector(click:)] autorelease];//    self.navigationItem.rightBarButtonItem = [[[UIBarButtonItem alloc] initWithImage:[UIImage imageNamed:@"moxie.png"] style:UIBarButtonItemStylePlain target:self action:@selector(click:)] autorelease ];    //  把按钮内容设置成文字, initWithTitle, 中文可能会让代码提示不出来//    self.navigationItem.rightBarButtonItem = [[[UIBarButtonItem alloc] initWithTitle:@"测试" style:UIBarButtonItemStylePlain target:self action:@selector(click:)] autorelease];    UIButton *itemButton = [UIButton buttonWithType:UIButtonTypeCustom];    [itemButton setImage:[UIImage imageNamed:@"shuangzi.png"] forState:UIControlStateNormal];    itemButton.frame = CGRectMake(0, 0, 40, 40);    //  如果不使用自定义的视图, 图片都是蓝色的, 只有自定义的视图才能正常显示图片样式    self.navigationItem.rightBarButtonItem = [[[UIBarButtonItem alloc] initWithCustomView:itemButton] autorelease];    //  外观设置通过navigationBar来操作, 能设置半透明和颜色(bartintcolor)    //  内容通过navigationitem来操作, 可以设置左右按钮, 中间标题title, titleView    UIButton *button = [UIButton buttonWithType:UIButtonTypeSystem];    [button setTitle:@"下一页" forState:UIControlStateNormal];    button.layer.borderWidth = 1;    button.layer.cornerRadius = 10;    [button addTarget:self action:@selector(buttonAction:) forControlEvents:UIControlEventTouchUpInside];    button.frame = CGRectMake(100, 100, 150, 50);    [self.view addSubview:button];}- (void)buttonAction:(UIButton *)button {//    //  用模态方式//    SecondViewController *secVC = [[SecondViewController alloc] init];//    //  设置模态动画//    [secVC setModalTransitionStyle:0];//    [self presentViewController:secVC animated:YES completion:nil];//    [secVC release];    //  push下一页面    //  先创建目标页面对象    SecondViewController *secVC = [[SecondViewController alloc] init];    [self.navigationController pushViewController:secVC animated:YES];    [secVC release];    NSLog(@"%@", self.navigationController);}- (void)click:(UIBarButtonItem *)item {    NSLog(@"点击ing");}- (void)didReceiveMemoryWarning {    [super didReceiveMemoryWarning];    // Dispose of any resources that can be recreated.}

SecondViewController.h

#import <UIKit/UIKit.h>@interface SecondViewController : UIViewController@end

SecondViewController.m

#import "SecondViewController.h"#import "ThirdViewController.h"@interface SecondViewController ()@end@implementation SecondViewController- (void)viewDidLoad {    [super viewDidLoad];    // Do any additional setup after loading the view.    self.title = @"第二页";    self.view.backgroundColor = [UIColor darkGrayColor];    UIButton *button = [UIButton buttonWithType:UIButtonTypeSystem];    [button setTitle:@"下一页" forState:UIControlStateNormal];    button.layer.borderWidth = 1;    button.layer.cornerRadius = 10;    [button addTarget:self action:@selector(buttonAction:) forControlEvents:UIControlEventTouchUpInside];    button.frame = CGRectMake(100, 100, 150, 50);    [self.view addSubview:button];}- (void)buttonAction:(UIButton *)button {    ThirdViewController *thiVC = [[ThirdViewController alloc] init];    [self.navigationController pushViewController:thiVC animated:YES];    [thiVC release];    NSLog(@"%@", self.navigationController);}

ThirdViewController.h

#import <UIKit/UIKit.h>@interface ThirdViewController : UIViewController@end

ThirdViewController.m

#import "ThirdViewController.h"#import "FourthViewController.h"@interface ThirdViewController ()@end@implementation ThirdViewController- (void)viewDidLoad {    [super viewDidLoad];    // Do any additional setup after loading the view.    self.title = @"第三页";    self.view.backgroundColor = [UIColor brownColor];    UIButton *button = [UIButton buttonWithType:UIButtonTypeSystem];    [button setTitle:@"下一页" forState:UIControlStateNormal];    button.layer.borderWidth = 1;    button.layer.cornerRadius = 10;    [button addTarget:self action:@selector(buttonAction:) forControlEvents:UIControlEventTouchUpInside];    button.frame = CGRectMake(100, 100, 150, 50);    [self.view addSubview:button];}- (void)buttonAction:(UIButton *)button {    FourthViewController *fourVC = [[FourthViewController alloc] init];    [self.navigationController pushViewController:fourVC animated:YES];    [fourVC release];    NSLog(@"%@", self.navigationController.viewControllers);}

FourthViewController.h

#import <UIKit/UIKit.h>@interface FourthViewController : UIViewController@end

FourthViewController.m

#import "FourthViewController.h"#import "FifthViewController.h"@interface FourthViewController ()@end@implementation FourthViewController- (void)viewDidLoad {    [super viewDidLoad];    // Do any additional setup after loading the view.    self.title = @"第四页";    self.view.backgroundColor = [UIColor cyanColor];    UIButton *button = [UIButton buttonWithType:UIButtonTypeSystem];    [button setTitle:@"下一页" forState:UIControlStateNormal];    button.layer.borderWidth = 1;    button.layer.cornerRadius = 10;    [button addTarget:self action:@selector(buttonAction:) forControlEvents:UIControlEventTouchUpInside];    button.frame = CGRectMake(100, 100, 150, 50);    [self.view addSubview:button];}- (void)viewWillAppear:(BOOL)animated {    [super viewWillAppear:animated];    NSLog(@"%@", self.navigationController.viewControllers);}- (void)buttonAction:(UIButton *)button {    FifthViewController *fiveVC = [[FifthViewController alloc] init];    [self.navigationController pushViewController:fiveVC animated:YES];    [fiveVC release];    NSLog(@"%@", self.navigationController.viewControllers);}

FifthViewController.h

#import <UIKit/UIKit.h>@interface FifthViewController : UIViewController@end

FifthViewController.m

#import "FifthViewController.h"@interface FifthViewController ()@end@implementation FifthViewController- (void)viewDidLoad {    [super viewDidLoad];    // Do any additional setup after loading the view.    self.title = @"第五页";    self.view.backgroundColor = [UIColor lightGrayColor];    UIButton *button = [UIButton buttonWithType:UIButtonTypeSystem];    [button setTitle:@"返回" forState:UIControlStateNormal];    button.layer.borderWidth = 1;    button.layer.cornerRadius = 10;    [button addTarget:self action:@selector(buttonAction:) forControlEvents:UIControlEventTouchUpInside];    button.frame = CGRectMake(100, 100, 150, 50);    [self.view addSubview:button];}- (void)buttonAction:(UIButton *)button {//    [self.navigationController popToRootViewControllerAnimated:YES];    [self.navigationController popViewControllerAnimated:YES];}