ios开发之导航栏的小例子

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// ios07_TwoViewChangeAppDelegate.h

// ios07-TwoViewChange

// Created by on 13-5-23.

#import<UIKit/UIKit.h>

@interface ios07_TwoViewChangeAppDelegate :UIResponder <UIApplicationDelegate>

@property (strong,nonatomic) UIWindow *window;

@end

----------------------------------------------------------------------------------------

// ios07_TwoViewChangeAppDelegate.m

// ios07-TwoViewChange

// Created by on 13-5-23.

#import"ios07_TwoViewChangeAppDelegate.h"

#import"MyRoot.h"

@implementation ios07_TwoViewChangeAppDelegate

@synthesize window =_window;

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

{

self.window = [[UIWindowalloc] initWithFrame:[[UIScreenmainScreen] bounds]];

// Override point for customization after application launch.

MyRoot *myrootVc=[[MyRoot alloc]init];

UINavigationController *navigatonVc=[[[UINavigationControlleralloc]init]initWithRootViewController:myrootVc];

self.window.rootViewController=navigatonVc;

self.window.backgroundColor = [UIColorwhiteColor];

[self.windowmakeKeyAndVisible];

return YES;

}

- (void)applicationWillResignActive:(UIApplication *)application

{

Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.

Use this method to pause ongoing tasks, disable timers, and throttle down OpenGL ES frame rates. Games should use this method to pause the game.

}

- (void)applicationDidEnterBackground:(UIApplication *)application

{

Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.

If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.

}

- (void)applicationWillEnterForeground:(UIApplication *)application

{

Called as part of the transition from the background to the inactive state; here you can undo many of the changes made on entering the background.

}

- (void)applicationDidBecomeActive:(UIApplication *)application

{

Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.

}

- (void)applicationWillTerminate:(UIApplication *)application

{

Called when the application is about to terminate.

Save data if appropriate.

See also applicationDidEnterBackground:.

}

@end

-----------------------------------------------------------------------------------

// MyRoot.h

// ios07-TwoViewChange

// Created by on 13-5-23.

#import<UIKit/UIKit.h>

@interface MyRoot :UIViewController

@end

------------------------------------------------

// MyRoot.m

// ios07-TwoViewChange

// Created by on 13-5-23.

#import"MyRoot.h"

#import"SecondViewControl.h"

@implementation MyRoot

- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil

{

self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];

if (self) {

// Custom initialization

}

return self;

}

-(void)loadView{

UIView *baseview=[[UIViewalloc]initWithFrame:[UIScreenmainScreen].applicationFrame];

baseview.backgroundColor=[UIColorpurpleColor];

self.view=baseview;

UIButton *btn=[UIButtonbuttonWithType:UIButtonTypeRoundedRect];

[btnsetTitle:@"进入第二屏" forState:UIControlStateNormal];

btn.frame=CGRectMake(90,100, 100, 40);

[btnaddTarget:selfaction:@selector(clickTo)forControlEvents:UIControlEventTouchUpInside];

[self.viewaddSubview:btn];

UIButton *btndisp=[UIButtonbuttonWithType:UIButtonTypeRoundedRect];

[btndispsetTitle:@"显示或隐藏" forState:UIControlStateNormal];

btndisp.frame=CGRectMake(90,50, 100, 40);

[btndispaddTarget:selfaction:@selector(disp)forControlEvents:UIControlEventTouchUpInside];

[self.viewaddSubview:btndisp];

}

-(void)disp{

if (self.navigationController.toolbarHidden) {

//如果返回为真，则当前你是隐藏的，则我们将工具栏显示出来

[self.navigationControllersetToolbarHidden:NOanimated:YES];

[self.navigationControllersetNavigationBarHidden:NOanimated:YES];

}else{

[self.navigationControllersetToolbarHidden:YESanimated:YES];

[self.navigationControllersetNavigationBarHidden:YESanimated:YES];

}

-(void)clickTo{

SecondViewControl *second=[[SecondViewControlalloc]init];

[self.navigationControllerpushViewController:second animated:YES];

}

//增加导航工具栏

-(void)viewWillAppear:(BOOL)animated{

NSLog(@"viewWillAppear");

//先加载父类的内容

[superviewWillAppear:animated];

//显示工具栏

[self.navigationControllersetToolbarHidden:YESanimated:YES];

//设置导航栏

//[self.navigationController setNavigationBarHidden:NO animated:YES];

}

- (void)didReceiveMemoryWarning

{

// Releases the view if it doesn't have a superview.

[superdidReceiveMemoryWarning];

// Release any cached data, images, etc that aren't in use.

}

#pragma mark - View lifecycle

// Implement loadView to create a view hierarchy programmatically, without using a nib.

- (void)loadView

{

}

// Implement viewDidLoad to do additional setup after loading the view, typically from a nib.

- (void)viewDidLoad

{

[super viewDidLoad];

}

- (void)viewDidUnload

{

[superviewDidUnload];

// Release any retained subviews of the main view.

// e.g. self.myOutlet = nil;

}

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation

{

// Return YES for supported orientations

return (interfaceOrientation == UIInterfaceOrientationPortrait);

}

@end

-------------------------------------------------------------------

// SecondViewControl.h

// ios07-TwoViewChange

// Created by on 13-5-23.

#import<UIKit/UIKit.h>

@interface SecondViewControl :UIViewController

@end

----------------------------------------------------

// SecondViewControl.m

// ios07-TwoViewChange

// Created by on 13-5-23.

#import"SecondViewControl.h"

#import"MyRoot.h"

@implementation SecondViewControl

- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil

{

self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];

if (self) {

// Custom initialization

}

return self;

}

-(void)loadView{

UIView *baseview=[[UIViewalloc]initWithFrame:[UIScreenmainScreen].applicationFrame];

baseview.backgroundColor=[UIColorgreenColor];

self.view=baseview;

UIButton *btn=[UIButtonbuttonWithType:UIButtonTypeRoundedRect];

[btnsetTitle:@"返回第一屏" forState:UIControlStateNormal];

btn.frame=CGRectMake(90,100, 100, 40);

[btnaddTarget:selfaction:@selector(clickTo1)forControlEvents:UIControlEventTouchUpInside];

[self.viewaddSubview:btn];

}

-(void)clickTo1{

//将secondviewcontroller弹出去

[self.navigationControllerpopViewControllerAnimated:YES];

}

- (void)didReceiveMemoryWarning

{

// Releases the view if it doesn't have a superview.

[superdidReceiveMemoryWarning];

// Release any cached data, images, etc that aren't in use.

}

-(void)viewDidLoad{

[superviewDidLoad];

}

//增加导航工具栏

-(void)viewWillAppear:(BOOL)animated{

[superviewWillAppear:animated];

//显示显示工具栏

[self.navigationControllersetToolbarHidden:NOanimated:YES];

}

#pragma mark - View lifecycle

// Implement loadView to create a view hierarchy programmatically, without using a nib.

- (void)loadView

{

}

// Implement viewDidLoad to do additional setup after loading the view, typically from a nib.

- (void)viewDidLoad

{

[super viewDidLoad];

}

- (void)viewDidUnload

{

[superviewDidUnload];

// Release any retained subviews of the main view.

// e.g. self.myOutlet = nil;

}

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation

{

// Return YES for supported orientations

return (interfaceOrientation == UIInterfaceOrientationPortrait);

}

@end