下拉菜单

<1>.在这个类里面我加入了很多的注释,比如每一下拉框可以容纳多少个选项
  /*
       1.每个里面最多可以放多少个数组
  */
       #define KDisplayMaxCellOfNumber  6
   /*
       2. 整个下拉框下面的背景颜色
   */                         
    self.backgroundColor=KmaskBackGroundViewColor;
   /*
        3.每个标题之间的小竖杠颜色
    */
        view.backgroundColor=[UIColor grayColor];

//声明一个类的属性
  @property(nonatomic,strong)JPullDownMenu *menu;
  self.edgesForExtendedLayout = UIRectEdgeNone;
  self.menu = [[JPullDownMenu alloc]initWithFrame:CGRectMake(0, 0,WIDTH, 40) menuTitleArray:@[@"默认",@"最新上线",@"当季"]];
  NSArray * regionArray =@[@"默认",@"推广",@"人气",@"平台推荐"];
  NSArray *classTypeArray=@[@"最新上线",@"将要售完",@"已售完"];
  NSArray *sortRuleArray=@[@"农业",@"林业",@"牧业",@"渔业",@"当季",@"错季"];
  //这里是一个block快
  self.menu.menuDataArray = [NSMutableArray arrayWithObjects:regionArray, classTypeArray , sortRuleArray, nil];
  [self.view addSubview:self.menu];
  /*
        下面讲解一下selectButtonTag是选中的上面的,如默认最新上线等等
        selectIndex指的是每个下表下面的具体哪一个
   */
  [self.menu setHandleSelectDataBlock:^(NSString *selectTitle, NSUInteger selectIndex, NSUInteger selectButtonTag) {
    if (selectButtonTag == 0) {
        if (selectIndex == 0) {
            NSLog(@"默认");
        }
        if (selectIndex == 1) {
            NSLog(@"推广");
        }
        if (selectIndex == 2) {
        }
        if(selectIndex == 3 ){
        }
    }
    if (selectButtonTag == 1){
        if (selectIndex == 0) {
            NSLog(@"最新上线");
        }
        if (selectIndex == 1) {
        }
        if (selectIndex == 2) {
        }
    }
    if (selectButtonTag == 2) {
        if (selectIndex == 0) {
        }
        if (selectIndex == 1) {
        }
        if (selectIndex == 2) {
        }
        if (selectIndex == 3) {
        }
        if (selectIndex == 4) {
        }
        if (selectIndex == 5) {
             NSLog(@"错季");
        }
    }
     /*
          网络请求的调用(根据上传的参数从服务器请求数据)
      */
     [_self AcreateNet];
  }];