iOS简单实现引导页面
引导页面的代码.h
#import <UIKit/UIKit.h>
#import "leadimageViewController.h"
#define WIDTH self.view.frame.size.width
#define HEIGHT self.view.frame.size.height
@interface homeViewController : UIViewController<UIScrollViewDelegate>
@property(strong,nonatomic)UIScrollView *scollView;
@property(strong,nonatomic)UIImageView *image1;
@property(strong,nonatomic)UIImageView *image2;
@property(strong,nonatomic)UIImageView *image3;
@property(strong,nonatomic)UIImageView *image4;
@property(strong,nonatomic)UIPageControl *pagecontrol;
@property(strong,nonatomic)UIButton *button;
@end
用户ViewController.h的代码
#import "homeViewController.h"
@interface homeViewController ()
@end
@implementation homeViewController
- (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view.
[self addimage];
}
-(void)addimage
{
self.scollView=[[UIScrollView alloc] initWithFrame:self.view.frame];
self.scollView.contentSize=CGSizeMake(4*WIDTH, HEIGHT);
self.scollView.directionalLockEnabled=YES;
self.scollView.pagingEnabled=NO;
self.scollView.showsHorizontalScrollIndicator=NO;
self.scollView.bounces=NO;
[self.view addSubview:self.scollView];
self.button=[[UIButton alloc] initWithFrame:CGRectMake(100, 100, 100, 50)];
[self.button setTitle:@"立即体验" forState:UIControlStateNormal];
self.button.backgroundColor=[UIColor grayColor];
[self.button addTarget:self action:@selector(touch) forControlEvents:UIControlEventTouchUpInside];
[self.image4 addSubview:self.button];
self.pagecontrol=[[UIPageControl alloc] init];
CGSize pageSize=CGSizeMake(120, 44);
self.pagecontrol.frame=CGRectMake((WIDTH-pageSize.width)*0.5, HEIGHT-pageSize.height-40, pageSize.width, pageSize.height);
self.pagecontrol.backgroundColor=[UIColor clearColor];
self.pagecontrol.numberOfPages=4;
self.pagecontrol.currentPage=0;
self.scollView.delegate=self;
self.image1=[[UIImageView alloc] initWithFrame:CGRectMake(0, 0, WIDTH, HEIGHT)];
self.image1.image=[UIImage imageNamed:@"1.jpg"];
self.image2=[[UIImageView alloc] initWithFrame:CGRectMake(WIDTH, 0, WIDTH, HEIGHT)];
self.image2.image=[UIImage imageNamed:@"2.jpg"];
self.image3=[[UIImageView alloc] initWithFrame:CGRectMake(WIDTH*2, 0, WIDTH, HEIGHT)];
self.image3.image=[UIImage imageNamed:@"3.jpg"];
self.image4=[[UIImageView alloc] initWithFrame:CGRectMake(WIDTH*3, 0, WIDTH, HEIGHT)];
self.image4.image=[UIImage imageNamed:@"4.jpg"];
[self.view addSubview:self.image1];
[self.view addSubview:self.image2];
[self.view addSubview:self.image3];
[self.view addSubview:self.image4];
self.image4.userInteractionEnabled=YES;
}
-(void)touch
{
[self presentViewController:[leadimageViewController new] animated:YES completion:^{
}];
}
-(void)scrollViewDidScroll:(UIScrollView *)scrollView
{
self.pagecontrol.currentPage=(int)(scrollView.contentOffset.x/WIDTH);
}
代理的代码appdelegate.m
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
// Override point for customization after application launch.
if (![[NSUserDefaults standardUserDefaults] boolForKey:@"firstLaunch"])
{
[[NSUserDefaults standardUserDefaults]setBool:YES forKey:@"firstLaunch"];
NSLog(@"第一次启动");
//如果是第一次启动的话，使用homeViewController(用户引导页面) 作为根视图
homeViewController *homeView=[[homeViewController alloc]init];
self.window.rootViewController=homeView;
}
else
{
NSLog(@"不是第一次启动");
//如果不是第一次启动的话，使用leadimageViewController作为根视图
leadimageViewController *leadimage=[[leadimageViewController alloc]init];
self.window.rootViewController=leadimage;
}
self.window.backgroundColor=[UIColor whiteColor];
[self.window makeKeyAndVisible];
return YES;
}
代理的代码appdelegate.h
#import <UIKit/UIKit.h>
#import "leadimageViewController.h"
#import "homeViewController.h"
@interface AppDelegate : UIResponder <UIApplicationDelegate>
@property (strong, nonatomic) UIWindow *window;
@property(strong,nonatomic)leadimageViewController *leadimage;
@end
