Represents a control that allows the user to select a single item from a drop-down list. 一个让用户从下拉框中选取单个选项的控件.
使用方法: [[ZYDropDownList alloc] initWithFrame:CGRectMake(x, y, width, height)];
代理属性: delegate
代理方法:
*方法名:
- (void)dropDownList:(ZYDropDownList *)dropDownList didSelectItem:(ZYListItem *)selectedItem;
*描述: 该方法在选择下拉框中的item时触发.
数据源: listItemArray , 存放ZYListItem类型的数组