【代碼筆記】標題2個表徵圖，點擊的時候，頁面跳轉，標題跳轉

【代碼筆記】標題2個表徵圖，點擊的時候，頁面跳轉，標題跳轉

一，。

二，工程圖。

三，代碼

RootViewController.h

#import <UIKit/UIKit.h>@interface RootViewController : UIViewController{    UIButton * leftButton;    UIButton * rightButton;    UIViewController * firstController;    UIViewController * secondController;}@end

 

RootViewController.m

#import "RootViewController.h"@interface RootViewController ()@end@implementation RootViewController- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil{    self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];    if (self) {        // Custom initialization    }    return self;}- (void)viewDidLoad{    [super viewDidLoad];    // Do any additional setup after loading the view.        //初始化頂部按鈕    [self creatHeadView];        //初始化背景圖    [self initBackView];   }#pragma -mark -functions//初始化背景圖-(void)initBackView{    firstController = [[UIViewController alloc] init];    firstController.view.backgroundColor = [UIColor redColor];    [self.view addSubview:firstController.view];        secondController = [[UIViewController alloc] init];    secondController.view.backgroundColor = [UIColor blueColor];   }//初始化頂部按鈕-(void)creatHeadView{    UIView * headView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 100, 30)];        //左邊的按鈕    leftButton = [UIButton buttonWithType:UIButtonTypeCustom];    leftButton.frame = CGRectMake(0, 0, 50, 30);    leftButton.tag = 201;    leftButton.enabled = NO;    [leftButton setImage:[UIImage imageNamed:@"left"] forState:UIControlStateNormal];    [leftButton addTarget:self action:@selector(doClickHeadActions:) forControlEvents:UIControlEventTouchUpInside];    [headView addSubview:leftButton];        //右邊的按鈕    rightButton = [UIButton buttonWithType:UIButtonTypeCustom];    rightButton.frame = CGRectMake(50, 0, 50, 30);    rightButton.tag = 301;    [rightButton setImage:[UIImage imageNamed:@"right"] forState:UIControlStateNormal];    [rightButton addTarget:self action:@selector(doClickHeadActions:) forControlEvents:UIControlEventTouchUpInside];    [headView addSubview:rightButton];        self.navigationItem.titleView = headView;}#pragma -mark -doClickActions-(void)doClickHeadActions:(UIButton *)btn{    if (btn.tag == 201)    {        [secondController dismissViewControllerAnimated:NO completion:nil];        [self.view addSubview:firstController.view];                [btn setImage:[UIImage imageNamed:@"leftselect"] forState:UIControlStateNormal];         btn.enabled = NO;        [rightButton setImage:[UIImage imageNamed:@"right"] forState:UIControlStateNormal];        rightButton.enabled = YES;    }    else if (btn.tag == 301)    {        [firstController dismissViewControllerAnimated:NO completion:nil];        [self.view addSubview:secondController.view];                [btn setImage:[UIImage imageNamed:@"rightselect"] forState:UIControlStateNormal];        btn.enabled = NO;        [leftButton setImage:[UIImage imageNamed:@"left"] forState:UIControlStateNormal];        leftButton.enabled = YES;    }}- (void)didReceiveMemoryWarning{    [super didReceiveMemoryWarning];    // Dispose of any resources that can be recreated.}