LWDropDownList

简单易用的下拉列表

使用方法：#import "LWDropListHelper.h"

_listHelper = [[LWDropListHelper alloc]init]; 
_listHelper.frame = CGRectMake(30, 50, KScreenWidth - 60, 30);
_listHelper.backgroundColor = [UIColor clearColor];
_listHelper.array = array;
_listHelper.rowHeight = 40;
_listHelper.delegate = self;
_listHelper.titleAlignment = NSTextAlignmentCenter;
[self.view addSubview:_listHelper];