代码如下

#import"ZBGuidePageView.h" @interfaceZBGuidePageView()
      
        @property(nonatomic,strong)UIScrollView*scrollView;@property(nonatomic,strong)UIPageControl*pageControl; @end @implementationZBGuidePageView NSString*key =@"CFBundleShortVersionString"; - (void)show {      NSString*key =@"CFBundleShortVersionString";      //获得当前软件的版本号   NSString*currentVersion = [NSBundlemainBundle].infoDictionary[key];      //获得沙盒中存储的版本号   NSString*sanboxVersion = [[NSUserDefaultsstandardUserDefaults]stringForKey:key];      if(![currentVersionisEqualToString:sanboxVersion]) {              //自定义引导界面        [selfpushGuideView];              //存储版本号        [[NSUserDefaultsstandardUserDefaults]setObject:currentVersionforKey:key];              //立即存储        [[NSUserDefaultsstandardUserDefaults]synchronize];           }   } //加载视图- (void)pushGuideView {   UIWindow*window = [UIApplicationsharedApplication].keyWindow;   self.frame= window.bounds;    [windowaddSubview:self];   //创建引导的滑动视图   _scrollView= [[UIScrollViewalloc]initWithFrame:CGRectMake(0,0,SCREEN_WIDTH,SCREEN_HEIGHT)];    [selfaddSubview:_scrollView];   _scrollView.backgroundColor= [UIColorwhiteColor];   //设置属性   //设置滑动视图内容的大小   _scrollView.contentSize=CGSizeMake(SCREEN_WIDTH*3,SCREEN_HEIGHT);   //分页设置   _scrollView.pagingEnabled=YES;   //设置滚动条的显示与隐藏   _scrollView.showsHorizontalScrollIndicator=NO;   _scrollView.showsVerticalScrollIndicator=NO;      //循环添加图片   for(NSIntegeri =0; i <3; i++) {       UIImageView*imageView = [[UIImageViewalloc]initWithFrame:CGRectMake(SCREEN_WIDTH* i,0,SCREEN_WIDTH,SCREEN_HEIGHT)];       //设置属性       NSString*imageName = [NSStringstringWithFormat:@"guide%@.jpg",@(i +1)];        imageView.image= [UIImageimageNamed:imageName];        imageView.userInteractionEnabled=YES;        if(i ==2) {            UIButton*button = [[UIButtonalloc]initWithFrame:CGRectMake(200,SCREEN_HEIGHT*0.85,SCREEN_WIDTH-400,SCREEN_HEIGHT*0.07)];            [buttonsetTitle:@"立即体验"forState:UIControlStateNormal];            button.titleLabel.font= [UIFontfontWithName:@"Helvetica-Bold"size:20];            [buttonaddTarget:selfaction:@selector(didExperButton)forControlEvents:UIControlEventTouchUpInside];           UIColor*color =UICOLOR_FROM_HEX(0x008aff);            [buttonsetBackgroundColor:color];            [imageViewaddSubview:button];           }               [_scrollViewaddSubview:imageView];    }} - (void)didExperButton{    [UIViewbeginAnimations:@"animation"context:nil];    [UIViewsetAnimationDuration:1.0f];    [UIViewsetAnimationCurve:UIViewAnimationCurveEaseInOut];    [UIViewsetAnimationTransition:UIViewAnimationTransitionCurlUpforView:self.windowcache:YES];    [UIViewcommitAnimations];    [selfremoveFromSuperview];} @end