步进器&分栏控制器

@synthesize stepper = _stepper;
@synthesize segContol = _segContol;

- (void)viewDidLoad {
    [super viewDidLoad];

    _stepper = [[UIStepper alloc]init];

    _stepper.frame = CGRectMake(100, 100, 80, 40);
    
    _stepper.maximumValue = 100;
    
    _stepper.minimumValue = 0;
    
    //当前值
    _stepper.value = 0;
    //步进值
    _stepper.stepValue = 10;
    
    //是否可以重复响应事件.按住键盘试一试就知道效果了
    _stepper.autorepeat = YES;
    
    //是否将步进结果通过“事件函数”响应出来。yes需要，no不需要
    _stepper.continuous = YES;
    
    [_stepper addTarget:self action:@selector(stepChange) forControlEvents:UIControlEventValueChanged];
    
    [self.view addSubview:_stepper];
    
    _segContol = [[UISegmentedControl alloc]init];
    
    //宽度可变，高度不可变
    _segContol.frame = CGRectMake(100, 300, 280, 40);
    
    [_segContol insertSegmentWithTitle:@"0元" atIndex:0 animated: NO];
    
    [_segContol insertSegmentWithTitle:@"5元" atIndex:1 animated:NO ];
    
    //选择当前默认索引
    _segContol.selectedSegmentIndex = 0;
    
    [_segContol addTarget:self action:@selector(segChanged) forControlEvents:
     UIControlEventValueChanged];
    
    [self.view addSubview:_segContol];
    
}

-(void) segChanged
{
    NSLog(@"select id is %ld",(long)_segContol.selectedSegmentIndex );
}





-(void) stepChange
{
    NSLog(@"Step changed value=%f",_stepper.value);
}

@interface ViewController : UIViewController
{
    //定义步进器
    UIStepper* _stepper;
    UISegmentedControl* _segControl;
    
}

//属性定义
@property(retain,nonatomic) UIStepper* stepper;

@property(retain,nonatomic) UISegmentedControl* segContol;