OneDayOneClass----UIStepper

// Created By 郭仔

UIStepper 加减法器：

<pre name="code" class="objc"> UILabel * leb = [[UILabel alloc]initWithFrame:CGRectMake(100, 200, 100, 100)];
    leb.backgroundColor = [UIColor redColor];
    self.label = leb;
    [self.window addSubview:leb];
    // ==========
    UIStepper * stepper = [[UIStepper alloc]init];
   // [stepper setCenter:self.window.center];
    stepper.frame = CGRectMake(100, 100, 200, 200);
    stepper.tintColor = [UIColor blueColor];
    stepper.value = 10;
    [stepper setMaximumValue:15.0];
    [stepper setMinimumValue:0.0];
    
    //[stepper setValue:5.5];
    [stepper setStepValue:1];
    // 是否循环
    [stepper setWraps:YES];
    // 设定stepper可以按住不放连续更改数值
    [stepper setContinuous:YES];
    [stepper addTarget:self action:@selector(steepValueschanged:) forControlEvents:UIControlEventValueChanged];
    [self.window addSubview:stepper];
    
    

OneDayOneClass----UIStepper

原文：http://blog.csdn.net/guoxianzhuang/article/details/45063067