- (void)viewDidLoad {
    [super viewDidLoad];
    [self.view addSubview:self.button];
}

- (void)showPopView{
    NSArray *titleArray = @[...];
    [self.button showPopViewWithtitleArray:titleArray didSelect:^(NSInteger index) {
        // do something when select
    } didDeSelect:^{
        // do something when deSelect
    }];
}

- (UIButton *)button{
    if (!_button) {
        // button config...
        [_button addTarget:self action:@selector(showPopView) forControlEvents:UIControlEventTouchUpInside];
    }
    return _button;
}