滑动视图和表示图的综合应用

代码如下：

1、新建一个scrollView视图，命名为LeftSelectScroll ,代码如下

.h 文件

#import <UIKit/UIKit.h>

//定义协议

@protocol LeftSelectScrollDelegate <NSObject>

- (void) clickLeftSelectScrollButton :(NSInteger)indexPath;

@end

@interface LeftSelectScroll : UIScrollView

//定义属性

@property (nonatomic,strong) NSArray *leftSeclectArray;

@property (nonatomic,strong) id <LeftSelectScrollDelegate> leftSelectDelegate;

//定义方法

- (void)setLeftSeclectArray:(NSArray *)leftSeclectArray;

- (void) setSelectButtonWithIndexPathSection:(NSInteger)indexPathSection;

@end

.m 文件中的主要方法

#pragma mark - 创建左侧视图的内容

- (void) setLeftSeclectArray:(NSArray *)leftSeclectArray {

    _leftSeclectArray = leftSeclectArray;

    //利用for循环来创建

    for (int i = 0; i < _leftSeclectArray.count; i++) {

        UIButton *button = [[UIButton alloc] initWithFrame:CGRectMake(0, 53* i, kWidth*0.25, 53)];

        [button setTitle:_leftSeclectArray[i] forState:UIControlStateNormal];

        [button setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];

        [button setTitleColor:[UIColor whiteColor] forState:UIControlStateSelected];

        button.backgroundColor = [UIColor purpleColor];

        [button setBackgroundColor:[UIColor whiteColor]];

        

        UILabel *lable = [[UILabel alloc] initWithFrame:CGRectMake(0, button.frame.size.height - 0.5, button.frame.size.width, 0.5)];

        lable.backgroundColor  =[UIColor grayColor];

        [button addSubview:lable];

        [self addSubview:button];

        button.tag = 1500+ i;

        [button addTarget:self action:@selector(clickLeftSelectButton:) forControlEvents:UIControlEventTouchUpInside];

        if ( i == 0) {

            [button setSelected:YES];

            [button setBackgroundColor:[UIColor orangeColor]];

            tempSelectButton = button;

        }

    }

}

#pragma mark - 按钮的实现方法

- (void)clickLeftSelectButton:(UIButton *) button {

    [tempSelectButton setSelected:NO];

    [tempSelectButton setBackgroundColor:[UIColor whiteColor]];

    

    [button setBackgroundColor:[UIColor redColor]];

    [button setSelected:YES];

    tempSelectButton = button;

    

    NSInteger tag = button.tag - 1500;

    if (self.leftSelectDelegate && [self.leftSelectDelegate respondsToSelector:@selector(clickLeftSelectScrollButton:)]) {

        [self.leftSelectDelegate clickLeftSelectScrollButton:tag];

    }

}

#pragma mark - 实现点击按钮就要跳转到的表示图的分组的索引值

- (void) setSelectButtonWithIndexPathSection:(NSInteger)indexPathSection {

    for (int i = 0; i < _leftSeclectArray.count; i ++) {

        NSInteger tag = i+1000;

        UIButton *btn = (UIButton *)[self viewWithTag:tag];

        if (btn.tag == indexPathSection + 1000) {

            tempSelectButton = btn;

            [btn setSelected:YES];

            btn.backgroundColor = [UIColor orangeColor];

        } else {

            [btn setSelected:NO];

            btn.backgroundColor = [UIColor yellowColor];

        }

    }

}

2、新建一个ViewController。命名为：

.m文件中的主要代码为：

（1）实现代理的方法：

//代理方法

- (void) clickLeftSelectScrollButton :(NSInteger)indexPath {

    

    isScrollSetSelect = NO;

    

    [_tableView scrollToRowAtIndexPath:[NSIndexPath indexPathForRow:0 inSection:indexPath] atScrollPosition:UITableViewScrollPositionTop animated:YES];

}

(2)头部视图的方法：

//实际需要会修改

-(UIView*)viewForHeaderView:(NSInteger)parama{

    UILabel *label = [[UILabel alloc]initWithFrame:CGRectMake(0, 0, kWidth, 32)];

    label.backgroundColor = [UIColor grayColor];

    if (leftDataSource.count != 0) {

        label.text = leftDataSource[parama];

        //        [NSString stringWithFormat:@"第%ld组",(long)parama];

    }

    return label;

   // NSLog(@"%@",label.text);

}

全部代码链接为：

http://note.youdao.com/yws/public/redirect/share?id=845663a5081473a9a00bca61c94b4c4e&type=false