iOS UIStepper(步进控件)的基本使用

初始化控件

UIStepper *step = [UIStepper alloc] initWithFram:(CGrectMake(100,100,200,50))];

设置控制器值是否连续触发变化

@property(nonatomic,getter = isContinuous) BOOL continuous;

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

设置长按是否一直触发变化

@property(nonatomic) BOOL autorepeat;

若设置为YES，则长按会一直发生改变，若为NO，则一次点击只会改变一次值

设置控制器的值是否循环（到达边界后，重头开始，默认为NO）

@property(nonatomic) BOOL wraps;

设置控制器的值

@property(nonatomic) double value;

设置控制器的最大值和最小值

@property(nonatomic) double minimumValue;//默认为0

@property(nonatomic) double maximumValue;//默认为100

设置控制器的步长

@property(nonatomic) double stepValue;

设置控时器风格背景图片

-(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;