只有第一次进入带导航视图

只有第一次运行程序才出现 ，删除重新运行程序才会有。

我只展示最后一张图了。

首先创建一个viewcontroller的类

然后在APPDelegate中设为根视图

然后在

UseGuideViewController.h中写

FirstViewController是我的主界面。

 宏定义宽和高

#import <UIKit/UIKit.h>
#import "FirstViewController.h"
#define WIDTH  self.view.frame.size.width
#define HEIGHT self.view.frame.size.height

@interface UseGuideViewController : UIViewController<UIScrollViewDelegate>

@end

 下面的就是UseGuideViewController.m中的代码 ，有一些注释。

#import "UseGuideViewController.h"

@interface UseGuideViewController ()

@end

@implementation UseGuideViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    [self initGuide];
}

- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}


-(void)initGuide
{
    UIScrollView *scrollView = [[UIScrollView alloc] initWithFrame:CGRectMake(0, 0, WIDTH, HEIGHT)];
         [scrollView setContentSize:CGSizeMake(WIDTH*4, 0)];
        [scrollView setPagingEnabled:YES];  //视图整页显示
         //    [scrollView setBounces:NO]; //避免弹跳效果,避免把根视图露出来
         scrollView.delegate=self;
    
         UIImageView *imageview = [[UIImageView alloc] initWithFrame:CGRectMake(0, 0, WIDTH, HEIGHT)];
        [imageview setImage:[UIImage imageNamed:@"5.png"]];
        [scrollView addSubview:imageview];
    
    
         UIImageView *imageview1 = [[UIImageView alloc] initWithFrame:CGRectMake(WIDTH, 0, WIDTH, HEIGHT)];
         [imageview1 setImage:[UIImage imageNamed:@"004.png"]];
         [scrollView addSubview:imageview1];
    
    
         UIImageView *imageview2 = [[UIImageView alloc] initWithFrame:CGRectMake(WIDTH*2, 0, WIDTH, HEIGHT)];
         [imageview2 setImage:[UIImage imageNamed:@"006.png"]];
         [scrollView addSubview:imageview2];
    
    
        UIImageView *imageview3 = [[UIImageView alloc] initWithFrame:CGRectMake(WIDTH*3, 0, WIDTH, HEIGHT)];
         [imageview3 setImage:[UIImage imageNamed:@"0.png"]];
         imageview3.userInteractionEnabled = YES;    //打开imageview3的用户交互;否则下面的button无法响应
         [scrollView addSubview:imageview3];
    
    
         UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];//在imageview3上加载一个透明的button
         [button setTitle:nil forState:UIControlStateNormal];
         [button setFrame:CGRectMake(250, 20, 150, 40)];
         [button addTarget:self action:@selector(firstpressed) forControlEvents:UIControlEventTouchUpInside];
    [button setTitle:@"进入主界面" forState:0];
    [button setTitleColor:[UIColor colorWithRed:0.305 green:1.000 blue:0.901 alpha:1.000] forState:0];
         [imageview3 addSubview:button];
    
         [self.view addSubview:scrollView];
    
     }

- (void)firstpressed {
    FirstViewController *firstvc=[FirstViewController new];
    
    [self presentViewController: firstvc  animated:YES completion:^{
        NSLog(@"页面切换完毕.模态视图");
    }];
    
    }
/*
#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

 好了， 这个就是我简单的介绍了。或许不成熟， 但我为之努力。