下拉View

#import "ViewController.h"

@interface ViewController ()<UITableViewDelegate , UITableViewDataSource,UIScrollViewDelegate>
{
    UIView *vieww;
    UITableView *tablev;
}
@end
@implementation ViewController
- (void)viewDidLoad {
    [super viewDidLoad];
   
    self.title = @"李鹏程";
    self.view.backgroundColor = [UIColor whiteColor];
   
    [self lpcbtn];
    [self gundongshitu];
   
    vieww = [[UIView alloc]initWithFrame:CGRectMake(260, 64+50+20, 150, 200)];
   
    vieww.backgroundColor = [UIColor blueColor];
    [self.view addSubview:vieww];
   
    tablev = [[UITableView alloc]initWithFrame:CGRectMake(0, 0, 150, 200)];
    tablev.delegate = self;
    tablev.dataSource = self;
    tablev.rowHeight = 70;
    [vieww addSubview:tablev];
   
    vieww.hidden = YES;
}

-(void)lpcbtn
{
    NSMutableArray *mutabearr = [NSMutableArray arrayWithObjects:@"李鹏程",@"李鹏程",@"李鹏程",@"李鹏程",@"李鹏程",@"+", nil];
   
    for (int i = 0; i < mutabearr.count; i++) {
       
        UIButton *btn = [UIButton buttonWithType:UIButtonTypeCustom];
       
        if (i == 0) {
            btn.backgroundColor = [UIColor orangeColor];
        }else if(i == 5)
        {
            [btn setTitleColor:[UIColor blueColor] forState:UIControlStateNormal];
            [btn setTitleColor:[UIColor greenColor] forState:UIControlStateSelected];
            btn.titleLabel.font = [UIFont systemFontOfSize:30];
           
            btn.backgroundColor = [UIColor lightGrayColor];
           
            [btn addTarget:self action:@selector(lpcbtn:) forControlEvents:UIControlEventTouchUpInside];
           
             btn.selected = NO;
           
        }else{
            btn.backgroundColor = [UIColor grayColor];
        }
       
        btn.frame = CGRectMake(i * 70, 64, 70, 50);
        btn.tag = 100 + i;
       
        [btn setTitle:[mutabearr objectAtIndex:i] forState:UIControlStateNormal];
       
        [btn addTarget:self action:@selector(jia:) forControlEvents:UIControlEventTouchUpInside];
        [self.view addSubview:btn];
 
    }
}

-(void)jia:(UIButton *)btn
{
    for (int i = 0; i<5; i++)
    {
        //根据tag获取按钮
        UIButton *btn1 = [self.view viewWithTag:100 + i];
       
        if (btn.tag == btn1.tag)
        {
            btn1.backgroundColor = [UIColor orangeColor];
        }
        else
        {
            btn1.backgroundColor = [UIColor grayColor];
        }
    }
}


-(void)gundongshitu
{
    UIScrollView *scrollView = [[UIScrollView alloc]initWithFrame:CGRectMake(0, 64 + 50, self.view.frame.size.width, self.view.frame.size.height - 64 - 50)];
   
    //设置偏移量
    scrollView.contentSize = CGSizeMake(self.view.frame.size.width * 5, self.view.frame.size.height - 64 - 50);
   
    //设置代理
    scrollView.delegate = self;
    scrollView.pagingEnabled = YES;
   
    //设置tag值
    scrollView.tag = 50;
    scrollView.backgroundColor = [UIColor greenColor];
    [scrollView setContentOffset:CGPointMake(self.view.frame.size.width, 0)];
   
    [self.view addSubview:scrollView];
   
}


- (void)scrollViewDidScroll:(UIScrollView *)scrollView
{

    if (scrollView.tag == 50)
    {
        //根据当前视图的偏移量设置当前的按钮位置

        for (int i=0; i<5; i++)
        {
            //根据tag获取
            UIButton *btn1 = [self.view viewWithTag:100+i];

            if (scrollView.contentOffset.x/self.view.frame.size.width == (btn1.tag - 100))
            {
                btn1.backgroundColor = [UIColor orangeColor];
            }
            else
            {
                btn1.backgroundColor = [UIColor grayColor];
            }
        }

    }

}
-(void)lpcbtn:(UIButton *)sender
{
    if (sender.tag == 105) {
        if (sender.selected == YES) {
            sender.selected = NO;
            vieww.hidden = YES;
        }else
        {
            sender.selected = YES;
            vieww.hidden = NO;
        }
    }
}
//====数据源方法=====

//设置行数
-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
    return 3;
}

//设置单元格  内容
-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
   
    //根据可重用标识符查找
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"cell"];
   
    //判断cell 如果没有创建cell
    if (cell == nil) {
        cell = [[UITableViewCell alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:@"cell"];
    }
   
    NSArray *arr = [NSArray arrayWithObjects:@"确认添加",@"确认删除",@"关闭", nil];
    //设置 cell 内容
    cell.textLabel.text = arr[indexPath.row];
    cell.backgroundColor = [UIColor blueColor];

    //返回cell
    return cell;
}

-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
    if (indexPath.row == 0 ) {
        UIAlertController *alert = [UIAlertController alertControllerWithTitle:@"确认添加" message:@"操作已成功" preferredStyle:UIAlertControllerStyleAlert];
       
        UIAlertAction *action = [UIAlertAction actionWithTitle:@"确认" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {

        }];
       
        [alert addAction:action];
        [self.navigationController presentViewController:alert animated:YES completion:^{
           
        }];
    }else if (indexPath.row == 1)
    {
        UIAlertController *alert = [UIAlertController alertControllerWithTitle:@"确认删除" message:@"操作已成功" preferredStyle:UIAlertControllerStyleAlert];
       
        UIAlertAction *action = [UIAlertAction actionWithTitle:@"确认" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {
           
        }];
       
        [alert addAction:action];
        [self.navigationController presentViewController:alert animated:YES completion:^{
           
        }];
    }else
    {
        vieww.hidden = YES;
    }
}



@end