在最后一个欢迎界面上添加一个CheckBox.

// 2.添加4个UIImageView    for (int i = 0; i < NEW_FEATURE_NUMS; i++) {       UIImageView *imageView = [[UIImageView alloc] init];        imageView.size = scrollView.size;        imageView.y = 0;        imageView.x = i * scrollW;        NSString *imageName = [NSString stringWithFormat:@"new_feature_%d",i+1];        imageView.image = [UIImage imageNamed:imageName];        [scrollView addSubview:imageView];                // 如果是最后一张图片,则添加进入按钮        if (i == NEW_FEATURE_NUMS - 1) {            [self setupEnterBtn:imageView];        }            }

 

/** 添加分享checkbox及进入微博按钮 */- (void)setupEnterBtn:(UIImageView *)imageView {    // 0.设置imageView可以交互    imageView.userInteractionEnabled = YES;        // 1.添加shareBtn    UIButton *shareBtn = [[UIButton alloc] init];    [shareBtn setImage:[UIImage imageNamed:@"checkbox_unchecked"] forState:UIControlStateNormal];    [shareBtn setImage:[UIImage imageNamed:@"checkbox_checked"] forState:UIControlStateSelected];        [shareBtn setTitle:@"分享到微博" forState:UIControlStateNormal];    [shareBtn setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];    shareBtn.titleLabel.font = [UIFont systemFontOfSize:14];    shareBtn.titleEdgeInsets = UIEdgeInsetsMake(0, 16, 0, 0);    shareBtn.width = 200;    shareBtn.height = 44;    shareBtn.centerX = imageView.width * 0.5;    shareBtn.centerY = imageView.height * 0.75;    [shareBtn addTarget:self action:@selector(shareBtnClick:) forControlEvents:UIControlEventTouchUpInside];        [imageView addSubview:shareBtn];            // 2.添加进入微博按钮    UIButton *enterBtn = [[UIButton alloc] init];    [enterBtn setBackgroundImage:[UIImage imageNamed:@"new_feature_button"] forState:UIControlStateNormal];    [enterBtn setBackgroundImage:[UIImage imageNamed:@"new_feature_button_highlighted"] forState:UIControlStateHighlighted];    enterBtn.size = enterBtn.currentBackgroundImage.size;    enterBtn.centerX = shareBtn.centerX;    enterBtn.centerY = imageView.height * 0.82;    [imageView addSubview:enterBtn];    }- (void)shareBtnClick:(UIButton *)btn {    btn.selected = !btn.isSelected;        DJLog(@"fdfd");}

 

最终效果：