新浪微博客户端(11)-自定义checkBox

在最后一个欢迎界面上添加一个CheckBox.

// 2.添加4个UIImageView
    for (int i = ; i < NEW_FEATURE_NUMS; i++) {
       UIImageView *imageView = [[UIImageView alloc] init];
        imageView.size = scrollView.size;
        imageView.y = ;
        imageView.x = i * scrollW;
        NSString *imageName = [NSString stringWithFormat:@"new_feature_%d",i+];
        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 - ) {
            [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:];
    shareBtn.titleEdgeInsets = UIEdgeInsetsMake(, , , );
    shareBtn.width = ;
    shareBtn.height = ;
    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：