1 - (void)viewDidLoad 2 { 3     [super viewDidLoad]; 4     // Do any additional setup after loading the view. 5      6     NSInteger imageCount = 4; 7     _launchScrollView = [[UIScrollView alloc]initWithFrame:CGRectMake(0.0, 0.0, HBScreenWidth, HBScreenHeight)]; 8     _launchScrollView.bounces = NO; 9     _launchScrollView.pagingEnabled = YES;10     _launchScrollView.showsHorizontalScrollIndicator = NO;11     _launchScrollView.contentOffset = CGPointMake(0.0, 0.0);12     _launchScrollView.contentSize = CGSizeMake(HBScreenWidth * imageCount, 0);13     14     //导入图片15     for (NSInteger i = 0; i < imageCount; i++) {16         UIImageView *launchImageView = [[UIImageView alloc]initWithFrame:CGRectMake(HBScreenWidth * i, 0.0, HBScreenWidth, HBScreenHeight)];17         UIImage *image = [UIImage imageNamed:[NSString stringWithFormat:@"start_h%d", i + 1]];18         image = [image resizableImageWithCapInsets:UIEdgeInsetsMake(0.0, 0.0, 0.0, 0.0) resizingMode:UIImageResizingModeStretch];19         launchImageView.image = image;20         21         //此处交互默认为NO,会屏蔽掉launchImageView内子视图所有点击事件和手势,所以必须要打开22         launchImageView.userInteractionEnabled = YES;23         24         if (i == 3) {25             UIButton *comeinBtn = [UIButton buttonWithType:UIButtonTypeCustom];26             comeinBtn.frame = CGRectMake(HBScreenWidth * 0.42, HBScreenHeight * 0.6 , HBScreenWidth * 0.17, HBScreenHeight * 0.08);27             comeinBtn.backgroundColor = [UIColor colorWithRed:197/255.0 green:233/255.0 blue:250/255.0 alpha:1.0];28             comeinBtn.layer.borderWidth = 1.0;29             comeinBtn.titleLabel.font = [UIFont fontWithName:nil size:15.0];30             [comeinBtn setTitle:@"点击进入" forState:UIControlStateNormal];31             [comeinBtn setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];32             [comeinBtn addTarget:self action:@selector(comeinBtnClick) forControlEvents:UIControlEventTouchUpInside];33             [launchImageView addSubview:comeinBtn];34         }35         [_launchScrollView addSubview:launchImageView];36     }37     [self.view addSubview:_launchScrollView];38 }