//
// FourthViewController.h
// UI1_UINavigationController
//
// Created by zhangxueming on 15/7/6.
// Copyright (c) 2015年 zhangxueming. All rights reserved.
//
#import <UIKit/UIKit.h>
@interface FourthViewController : UIViewController
@end
//
// FourthViewController.m
// UI1_UINavigationController
//
// Created by zhangxueming on 15/7/6.
// Copyright (c) 2015年 zhangxueming. All rights reserved.
//
#import "FourthViewController.h"
@interface FourthViewController ()
@end
@implementation FourthViewController
- (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view.
self.view.backgroundColor = [UIColor purpleColor];
//视图控制器数组
NSInteger count = [self.navigationController.viewControllers count];
NSLog(@"count = %li", count);
UIButton *btn1 = [UIButton buttonWithType:UIButtonTypeSystem];
btn1.frame = CGRectMake(100, 100, self.view.frame.size.width-200, 50);
[btn1 setTitle:@"popToFirst" forState:UIControlStateNormal];
btn1.titleLabel.font = [UIFont boldSystemFontOfSize:24];
[btn1 addTarget:self action:@selector(btnClicked:) forControlEvents:UIControlEventTouchUpInside];
btn1.tag = 100;
[self.view addSubview:btn1];
UIButton *btn2 = [UIButton buttonWithType:UIButtonTypeSystem];
btn2.frame = CGRectMake(100, 200, self.view.frame.size.width-200, 50);
[btn2 setTitle:@"popToSecond" forState:UIControlStateNormal];
btn2.titleLabel.font = [UIFont boldSystemFontOfSize:24];
[btn2 addTarget:self action:@selector(btnClicked:) forControlEvents:UIControlEventTouchUpInside];
btn2.tag = 101;
[self.view addSubview:btn2];
}
- (void)btnClicked:(UIButton *)btn
{
if (btn.tag==100) {
//直接切换到根视图控制器
[self.navigationController popToRootViewControllerAnimated:YES];
}
else if (btn.tag==101)
{
//获取指定位置的视图控制器
//视图控制器必须存在
UIViewController *controller = [self.navigationController.viewControllers objectAtIndex:1];
[self.navigationController popToViewController:controller animated:YES];
}
}
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
/*
#pragma mark - Navigation
// In a storyboard-based application, you will often want to do a little preparation before navigation
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
// Get the new view controller using [segue destinationViewController].
// Pass the selected object to the new view controller.
}
*/
@end
//
// ThirdViewController.h
// UI1_UINavigationController
//
// Created by zhangxueming on 15/7/6.
// Copyright (c) 2015年 zhangxueming. All rights reserved.
//
#import <UIKit/UIKit.h>
@interface ThirdViewController : UIViewController
@end
//
// ThirdViewController.m
// UI1_UINavigationController
//
// Created by zhangxueming on 15/7/6.
// Copyright (c) 2015年 zhangxueming. All rights reserved.
//
#import "ThirdViewController.h"
#import "FourthViewController.h"
@interface ThirdViewController ()
@end
@implementation ThirdViewController
- (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view.
self.view.backgroundColor = [UIColor redColor];
UIButton *btn = [UIButton buttonWithType:UIButtonTypeSystem];
btn.frame = CGRectMake(100,200, self.view.frame.size.width-200, 50);
[btn setTitle:@"pushToFourth" forState:UIControlStateNormal];
[btn addTarget:self action:@selector(btnClicked) forControlEvents:UIControlEventTouchUpInside];
btn.titleLabel.font = [UIFont boldSystemFontOfSize:24];
[self.view addSubview:btn];
NSLog(@"count = %li", self.navigationController.viewControllers.count);
}
- (void)btnClicked
{
FourthViewController *fvc = [[FourthViewController alloc] init];
[self.navigationController pushViewController:fvc animated:YES];
}
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
/*
#pragma mark - Navigation
// In a storyboard-based application, you will often want to do a little preparation before navigation
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
// Get the new view controller using [segue destinationViewController].
// Pass the selected object to the new view controller.
}
*/
@end
//
// SecondViewController.h
// UI1_UINavigationController
//
// Created by zhangxueming on 15/7/6.
// Copyright (c) 2015年 zhangxueming. All rights reserved.
//
#import <UIKit/UIKit.h>
@interface SecondViewController : UIViewController
@end
//
// SecondViewController.m
// UI1_UINavigationController
//
// Created by zhangxueming on 15/7/6.
// Copyright (c) 2015年 zhangxueming. All rights reserved.
//
#import "SecondViewController.h"
#import "ThirdViewController.h"
@interface SecondViewController ()
@end
@implementation SecondViewController
- (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view.
self.view.backgroundColor = [UIColor yellowColor];
UIButton *btn1 = [UIButton buttonWithType:UIButtonTypeSystem];
btn1.frame = CGRectMake(100, 100, self.view.frame.size.width-200, 50);
[btn1 setTitle:@"pushToThird" forState:UIControlStateNormal];
btn1.titleLabel.font = [UIFont boldSystemFontOfSize:23];
[btn1 addTarget:self action:@selector(btnClicked:) forControlEvents:UIControlEventTouchUpInside];
btn1.tag = 100;
[self.view addSubview:btn1];
UIButton *btn2= [UIButton buttonWithType:UIButtonTypeSystem];
btn2.frame = CGRectMake(100, 300, self.view.frame.size.width-200, 50);
[btn2 setTitle:@"popToFirst" forState:UIControlStateNormal];
btn2.titleLabel.font = [UIFont boldSystemFontOfSize:24];
[btn2 addTarget:self action:@selector(btnClicked:) forControlEvents:UIControlEventTouchUpInside];
btn2.tag = 101;
[self.view addSubview:btn2];
}
- (void)btnClicked:(UIButton *)btn
{
//压栈
if (btn.tag == 100) {
ThirdViewController *tvc = [[ThirdViewController alloc] init];
[self.navigationController pushViewController:tvc animated:YES];
}
else if(btn.tag == 101)
{
//出栈
//栈顶的视图控制器出栈
[self.navigationController popViewControllerAnimated:YES];
}
}
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
/*
#pragma mark - Navigation
// In a storyboard-based application, you will often want to do a little preparation before navigation
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
// Get the new view controller using [segue destinationViewController].
// Pass the selected object to the new view controller.
}
*/
@end
//
// AppDelegate.m
// UI1_UINavigationController
//
// Created by zhangxueming on 15/7/6.
// Copyright (c) 2015年 zhangxueming. All rights reserved.
//
#import "AppDelegate.h"
@interface AppDelegate ()
@end
@implementation AppDelegate
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
// Override point for customization after application launch
//创建导航控制器
UINavigationController *nav = [[UINavigationController alloc] initWithRootViewController:self.window.rootViewController];
self.window.rootViewController = nav;
return YES;
}
//
// ViewController.m
// UI1_UINavigationController
//
// Created by zhangxueming on 15/7/6.
// Copyright (c) 2015年 zhangxueming. All rights reserved.
//
#import "ViewController.h"
#import "SecondViewController.h"
@interface ViewController ()
@end
@implementation ViewController
- (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
self.view.backgroundColor = [UIColor cyanColor];
UIButton *btn = [UIButton buttonWithType:UIButtonTypeSystem];
btn.frame = CGRectMake(100, 200, self.view.frame.size.width-200, 50);
[btn setTitle:@"push" forState:UIControlStateNormal];
btn.titleLabel.font = [UIFont boldSystemFontOfSize:24];
[btn addTarget:self action:@selector(btnClicked) forControlEvents:UIControlEventTouchUpInside];
[self.view addSubview:btn];
}
- (void)btnClicked
{
SecondViewController *svc = [[SecondViewController alloc] init];
//取得导航控制器对象
//视图控制器必须被添加到导航控制器中
//把视图控制器压栈到导航控制器中
[self.navigationController pushViewController:svc animated:YES];
}
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
@end