扔数据源即可，支持单选多选

FHPickerView *alertView = [[FHPickerView alloc] initWithDataSource:@[@"每周日", @"每周一", @"每周二", @"每周三", @"每周四", @"每周五", @"每周六"]];

alertView.leftBlock = ^{
     
};

alertView.rightBlock = ^(NSArray *weekAry) {
    
};

[alertView showAnimated:NO];