實現(xiàn)效果如題,應用在查找小說章節(jié)列表上
主要.m代碼如下
@property (weak, nonatomic) IBOutlet UITableView *tableview;這里從xib拖個tableview就可以了 ,需要 綁定delegate和dataSource.
slider 長度位置需要根據(jù)情況微調
代碼拙劣,僅供參考

#import "ViewController.h"

@interface ViewController ()<UITableViewDelegate,UITableViewDataSource>

@property (weak, nonatomic) IBOutlet UITableView *tableview;

@property(strong,nonatomic)UISlider * slider;
@property(nonatomic,retain) NSArray *listData;
@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.
    
    NSArray *array=[[NSArray alloc]initWithObjects:@"廣州",@"深圳",@"梅州",@"東莞",@"潮汕",@"肇慶",@"四會",@"佛山",@"湛江",@"江門",@"陽江",@"珠海",@"廣州",@"深圳",@"梅州",@"東莞",@"潮汕",@"肇慶",@"四會",@"佛山",@"湛江",@"江門",@"陽江",@"珠海",@"廣州",@"深圳",@"梅州",@"東莞",@"潮汕",@"肇慶",@"四會",@"佛山",@"湛江",@"江門",@"陽江",@"珠海",@"廣州",@"深圳",@"梅州",@"東莞",@"潮汕",@"肇慶",@"四會",@"佛山",@"湛江",@"江門",@"陽江",@"珠海",@"廣州",@"深圳",@"梅州",@"東莞",@"潮汕",@"肇慶",@"四會",@"佛山",@"湛江",@"江門",@"陽江",@"珠海",@"廣州",@"深圳",@"梅州",@"東莞",@"潮汕",@"肇慶",@"四會",@"佛山",@"湛江",@"江門",@"陽江",@"珠海",@"廣州",@"深圳",@"梅州",@"東莞",@"潮汕",@"肇慶",@"四會",@"佛山",@"湛江",@"江門",@"陽江",@"珠海",@"廣州",@"深圳",@"梅州",@"東莞",@"潮汕",@"肇慶",@"四會",@"佛山",@"湛江",@"江門",@"陽江",@"珠海",@"廣州",@"深圳",@"梅州",@"東莞",@"潮汕",@"肇慶",@"四會",@"佛山",@"湛江",@"江門",@"陽江",@"珠海",@"廣州",@"深圳",@"梅州",@"東莞",@"潮汕",@"肇慶",@"四會",@"佛山",@"湛江",@"江門",@"陽江",@"珠海",@"廣州",@"深圳",@"梅州",@"東莞",@"潮汕",@"肇慶",@"四會",@"佛山",@"湛江",@"江門",@"陽江",@"珠海",@"廣州",@"深圳",@"梅州",@"東莞",@"潮汕",@"肇慶",@"四會",@"佛山",@"湛江",@"江門",@"陽江",@"珠海",@"廣州",@"深圳",@"梅州",@"東莞",@"潮汕",@"肇慶",@"四會",@"佛山",@"湛江",@"江門",@"陽江",@"珠海",@"廣州",@"深圳",@"梅州",@"東莞",@"潮汕",@"肇慶",@"四會",@"佛山",@"湛江",@"江門",@"陽江",@"珠海",@"廣州",@"深圳",@"梅州",@"東莞",@"潮汕",@"肇慶",@"四會",@"佛山",@"湛江",@"江門",@"陽江",@"珠海",@"廣州",@"深圳",@"梅州",@"東莞",@"潮汕",@"肇慶",@"四會",@"佛山",@"湛江",@"江門",@"陽江",@"珠海",@"廣州",@"深圳",@"梅州",@"東莞",@"潮汕",@"肇慶",@"四會",@"佛山",@"湛江",@"江門",@"陽江",@"珠海",@"廣州",@"深圳",@"梅州",@"東莞",@"潮汕",@"肇慶",@"四會",@"佛山",@"湛江",@"江門",@"陽江",@"珠海",@"廣州",@"深圳",@"梅州",@"東莞",@"潮汕",@"肇慶",@"四會",@"佛山",@"湛江",@"江門",@"陽江",@"珠海",@"廣州",@"深圳",@"梅州",@"東莞",@"潮汕",@"肇慶",@"四會",@"佛山",@"湛江",@"江門",@"陽江",@"珠海",@"廣州",@"深圳",@"梅州",@"東莞",@"潮汕",@"肇慶",@"四會",@"佛山",@"湛江",@"江門",@"陽江",@"珠海",@"廣州",@"深圳",@"梅州",@"東莞",@"潮汕",@"肇慶",@"四會",@"佛山",@"湛江",@"江門",@"陽江",@"珠海",@"廣州",@"深圳",@"梅州",@"東莞",@"潮汕",@"肇慶",@"四會",@"佛山",@"湛江",@"江門",@"陽江",@"珠海",@"廣州",@"深圳",@"梅州",@"東莞",@"潮汕",@"肇慶",@"四會",@"佛山",@"湛江",@"江門",@"陽江",@"珠海", nil];
    self.listData=array;
    
    
    self.slider = [[UISlider alloc] initWithFrame:CGRectMake(40, self.view.frame.size.height/2, self.view.frame.size.height-50, 20)];
    self.slider.minimumValue = 0.0;
    self.slider.maximumValue = 1;
    self.slider.value = 0.0;
    self.slider.minimumTrackTintColor = [UIColor clearColor]; //滑輪左邊顏色慎王，如果設置了左邊的圖片就不會顯示
    self.slider.maximumTrackTintColor = [UIColor clearColor]; //滑輪右邊顏色宏侍，如果設置了右邊的圖片就不會顯示
    [self.slider addTarget:self action:@selector(updateValue:) forControlEvents:UIControlEventValueChanged];
    self.slider.transform =CGAffineTransformMakeRotation(M_PI/2); //旋轉一下即可 -_-!!
    
    [self.view addSubview:_slider];
    
    
    
}

- (void)updateValue:(id)sender {
    
    UISlider *slider = (UISlider *)sender;
    NSString * str = [NSString stringWithFormat:@"%.3f", slider.value*288];
    
    
    
    NSLog(@"%ld",(long)[str integerValue]);
    
    NSIndexPath *scrollIndexPath = [NSIndexPath indexPathForRow:[str integerValue]-1>0?[str integerValue]-1:[str integerValue] inSection:0];
    
    
    
    [self.tableview scrollToRowAtIndexPath:scrollIndexPath
                            atScrollPosition:UITableViewScrollPositionTop animated:NO];
    
 
}
//返回總行數(shù)
-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
    NSLog(@"count is %lu",(unsigned long)[self.listData count]);
    return [self.listData count];
}

//為每一行賦值
static NSString *SimpleTableIdentifier=@"SimpleTableIdentifier";
-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    UITableViewCell *cell=[tableView dequeueReusableCellWithIdentifier:SimpleTableIdentifier];
    if(cell==nil){//如果行元素為空的話 則新建一行
        cell=[[UITableViewCell alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:SimpleTableIdentifier];
    }
    //取得當前行
    NSUInteger row=[indexPath row];
    cell.textLabel.text=[_listData objectAtIndex:row]; //設置每一行要顯示的值
    return cell;
}
- (void)scrollViewDidScroll:(UIScrollView *)scrollView{
 
    //scrollView.contentOffset 會告訴你offset
    
    NSLog(@"%f",scrollView.contentOffset.y/scrollView.contentSize.height);
    
    self.slider.value = scrollView.contentOffset.y/scrollView.contentSize.height;
    
    
    
}





- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}


@end