UIStepper 步进控件

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属性

• 创建

UIStepper * step = [[UIStepper alloc]initWithFrame:CGRectMake(100, 100, 100, 100)];

• continuous————设置控制器值是否连续触发变化

若设置为YES，则长按会连续触发变化，若设置为NO，只有在按击结束后，才会触发。

step.continuous = YES;

• autorepeat————设置长按是否一直触发变化

若设置为YES，则长按值会一直改变，若设置为NO，则一次点击只会改变一次值

step.autorepeat = YES;

• wraps————设置控制器的值是否循环(到达边界后，重头开始，默认为NO)

step.wraps = YES;

• value————设置控制器的值

step.value = 3;
step.minimumValue = 1; //最小值(默认为0)
step.maximumValue = 5; //最大值(默认为100)

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方法

• 设置控制器背景图片

-(void)setBackgroundImage:(UIImage*)image forState:(UIControlState)state;

• 获取背景图片

-(UIImage*)backgroundImageForState:(UIControlState)state;

• 通过左右按钮的状态设置分割线的图片

-(void)setDividerImage:(UIImage*)image forLeftSegmentState:(UIControlState)leftState rightSegmentState:(UIControlState)rightState;

• 获取分割线图片

-(UIImage*)dividerImageForLeftSegmentState:(UIControlState)state rightSegmentState:(UIControlState)state;

• 设置和获取加号按钮的图片

-(void)setIncrementImage:(UIImage *)image forState:(UIControlState)state;
-(UIImage *)incrementImageForState:(UIControlState)state;

• 设置和获取减号按钮的图片

-(void)setDecrementImage:(UIImage *)image forState:(UIControlState)state;
-(UIImage *)decrementImageForState:(UIControlState)state;