iOS新特性引导页

有一个注意点：

获取版本号

个叫做Version，一个叫做Build，这两个值都可以在Xcode 中选中target，点击“Summary”后看到。 Version在plist文件中的key是“CFBundleShortVersionString”，和AppStore上的版本号保持一致，Build在plist中的key是“CFBundleVersion”，代表build的版本号，该值每次build之后都应该增加1。这两个值都可以在程序中通过下面的代码获得：

 

1.Version

NSString *key = @"CFBundleShortVersionString";

2.build

NSString *key =@"CFBundleVersion";

---

1.在AppDelegate.m

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
    self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];

    self.window.backgroundColor = [UIColor whiteColor];

    NSString *key = @"CFBundleShortVersionString";
    //上一个版本号，存沙盒
    NSString *lastVersion = [[NSUserDefaults standardUserDefaults] objectForKey:key];
    //当前版本号
    NSString *currentVersion = [NSBundle mainBundle].infoDictionary[key];
    NSLog(@"前面%@----当前%@",lastVersion,currentVersion);
    
    if ([currentVersion isEqualToString:lastVersion]) {
        self.window.rootViewController = [ViewController new]; //为真表示已有文件 曾经进入过主页
    }else{
        self.window.rootViewController =[LGFNEWfeatureViewController new];//为假表示没有文件，没有进入过主页
        [[NSUserDefaults standardUserDefaults] setObject:currentVersion forKey:key];
        [[NSUserDefaults standardUserDefaults] synchronize];
    }
    [self.window makeKeyAndVisible];
    
    return YES;
}

2.在新特性的VC中：

#import "LGFNEWfeatureViewController.h"
#import "ViewController.h"

#define LGFNEWFeatureCount 3
@interface LGFNEWfeatureViewController ()<UIScrollViewDelegate>
@property(nonatomic,strong)UIScrollView *scrollView;

@property(nonatomic,strong)UIPageControl *pageControl;

@end

@implementation LGFNEWfeatureViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view.
    [self setScrollerView];
}

-(void)setScrollerView{
    self.scrollView = [UIScrollView new];
    _scrollView.frame = self.view.bounds;
    _scrollView.contentSize = CGSizeMake(LGFNEWFeatureCount *self.view.frame.size.width, 0);
    _scrollView.bounces = NO;
    _scrollView.pagingEnabled = YES;
    _scrollView.showsHorizontalScrollIndicator =NO;
    [self.view addSubview:_scrollView];
    for (int i =0; i<LGFNEWFeatureCount; i++) {
        UIImageView *imageView = [[UIImageView alloc] initWithFrame:CGRectMake(self.view.frame.size.width*i, 0, self.view.frame.size.width, self.view.frame.size.height)];
        imageView.image = [UIImage imageNamed:[NSString stringWithFormat:@"%d",i+1]];
        [_scrollView addSubview:imageView];
        if (i == LGFNEWFeatureCount-1) {
            [self setupLastImageView:imageView];
        }
    }
    _scrollView.delegate = self;
    
    self.pageControl = [[UIPageControl alloc] initWithFrame:CGRectMake(20, self.view.frame.size.height-30, self.view.frame.size.width-30,30)];
    _pageControl.numberOfPages = LGFNEWFeatureCount;
    _pageControl.currentPageIndicatorTintColor =[UIColor orangeColor];
    _pageControl.userInteractionEnabled = NO;
    [self.view addSubview:_pageControl];
    
}

-(void)scrollViewDidScroll:(UIScrollView *)scrollView{
    self.pageControl.currentPage = self.scrollView.contentOffset.x/self.view.frame.size.width;
}


-(void)setupLastImageView:(UIImageView*)imageView{
    //开启用户交互
    imageView.userInteractionEnabled = YES;
    //1.分享
    UIButton *sharedBtn =[[UIButton alloc] initWithFrame:CGRectMake(80, self.view.frame.size.height-210, self.view.frame.size.width*0.5,self.view.frame.size.height*0.3)];
    
    [sharedBtn setImage:[UIImage imageNamed:@"shared"] forState:UIControlStateNormal];
     [sharedBtn setImage:[UIImage imageNamed:@"sharedselect"] forState:UIControlStateSelected];
    [sharedBtn setTitle:@"分享给大家" forState:UIControlStateNormal];
    sharedBtn.titleEdgeInsets = UIEdgeInsetsMake(0, 20, 0, 0);
    sharedBtn.titleLabel.font = [UIFont systemFontOfSize:18];
    [sharedBtn setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
    [sharedBtn addTarget:self action:@selector(sharedBtnClick:) forControlEvents:UIControlEventTouchUpInside];
    [imageView addSubview:sharedBtn];
    
    //2.开始程序首页
    UIButton *startBtn = [[UIButton alloc] initWithFrame:CGRectMake(120, self.view.frame.size.height*0.88, self.view.frame.size.width*0.4,self.view.frame.size.height*0.05)];
    startBtn.layer.cornerRadius = 12.0f;
    startBtn.layer.masksToBounds =YES;
    startBtn.backgroundColor = [UIColor orangeColor];
    [startBtn setTitle:@"开启APP之旅" forState:UIControlStateNormal];
    [startBtn addTarget:sharedBtn action:@selector(startBtnClick) forControlEvents:UIControlEventTouchUpInside];
    [imageView addSubview:startBtn];
    
}

-(void)sharedBtnClick:(UIButton *)sharedBtn{
    sharedBtn.selected = !sharedBtn.selected;
}

-(void)startBtnClick{
    UIWindow *win =[UIApplication sharedApplication].keyWindow;
    win.rootViewController = [ViewController new];
}