主要的实现代码如下：

@interface ViewController ()
@property (nonatomic, strong) UIView *contentView;
@property (nonatomic, strong) UIView *dimmingView;
@property (nonatomic, strong) UIImageView *imageView;
@property (nonatomic, strong) UILabel *titleLabel;
@implementation ViewController
#pragma mark - life cycle
// 列表展示
- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.
    self.view.backgroundColor = UIColorFromHex(0xeeeeee);
    [self setupConstraintsForSubviews];
    self.imageView.image = [UIImage imageNamed:@"son"];
    self.titleLabel.text = @"可爱的小朋友";
#pragma mark - layout subviews
- (void)setupConstraintsForSubviews {
    [self.view addSubview:self.dimmingView];
    [self.view addSubview:self.contentView];
    [self.contentView addSubview:self.imageView];
    [self.contentView addSubview:self.titleLabel];
    [self.contentView mas_makeConstraints:^(MASConstraintMaker *make) {
        make.center.mas_offset(0);
    [self.dimmingView mas_makeConstraints:^(MASConstraintMaker *make) {
        make.edges.equalTo(self.contentView);
    [self.imageView mas_makeConstraints:^(MASConstraintMaker *make) {
        make.top.left.right.mas_offset(0);
        make.size.mas_equalTo(200);
    [self.titleLabel mas_makeConstraints:^(MASConstraintMaker *make) {
        make.left.right.mas_offset(0);
        make.top.equalTo(self.imageView.mas_bottom).mas_offset(20);
        make.bottom.mas_offset(-20);
#pragma mark - lazy load
- (UILabel *)titleLabel {
    if (!_titleLabel) {
        _titleLabel = [[UILabel alloc]init];
        _titleLabel.textAlignment = NSTextAlignmentCenter;
    return _titleLabel;
- (UIImageView *)imageView {
    if (!_imageView) {
        _imageView = [[UIImageView alloc]init];
    return _imageView;
- (UIView *)contentView {
    if (!_contentView) {
        _contentView = [[UIView alloc]init];
        _contentView.layer.cornerRadius = 10;
        _contentView.clipsToBounds = YES;
    return _contentView;
- (UIView *)dimmingView {
    if (!_dimmingView) {
        _dimmingView = [[UIView alloc]init];
        // 设置阴影
        _dimmingView.layer.cornerRadius = 10;
        _dimmingView.layer.backgroundColor = [UIColor whiteColor].CGColor;
        _dimmingView.layer.shadowOpacity = 1;
        _dimmingView.layer.shadowColor = [UIColor brownColor].CGColor;
        _dimmingView.layer.shadowRadius = 10;
        _dimmingView.layer.shadowOffset = CGSizeMake(10, 10);
        _dimmingView.clipsToBounds = NO;
    return _dimmingView;