UISlider用法总结
@property(nonatomic) float value;
这个值是介于滑块的最大值和最小值之间的,如果没有设置边界值,默认为0-1;
设置滑块最小边界值(默认为0)
@property(nonatomic) float minimumValue;
设置滑块最大边界值(默认为1)
@property(nonatomic) float maximumValue;
设置滑块最左端显示的图片:
@property(nonatomic,retain) UIImage *minimumValueImage;
设置滑块最右端显示的图片:
@property(nonatomic,retain) UIImage *maximumValueImage;
设置滑块值是否连续变化(默认为YES)
@property(nonatomic,getter=isContinuous) BOOL continuous;
这个属性设置为YES则在滑动时,其value就会随时变化,设置为NO,则当滑动结束时,value才会改变。
设置滑块左边(小于部分)线条的颜色
@property(nonatomic,retain) UIColor *minimumTrackTintColor;
设置滑块右边(大于部分)线条的颜色
@property(nonatomic,retain) UIColor *maximumTrackTintColor;
设置滑块颜色(影响已划过一端的颜色)
@property(nonatomic,retain) UIColor *thumbTintColor;
注意这个属性:如果你没有设置滑块的图片,那个这个属性将只会改变已划过一段线条的颜色,不会改变滑块的颜色,如果你设置了滑块的图片,又设置了这个属性,那么滑块的图片将不显示,滑块的颜色会改变(IOS7)
手动设置滑块的值:
- (void)setValue:(float)value animated:(BOOL)animated;
设置滑块的图片:
- (void)setThumbImage:(UIImage *)image forState:(UIControlState)state;
设置滑块划过部分的线条图案
- (void)setMinimumTrackImage:(UIImage *)image forState:(UIControlState)state;
设置滑块未划过部分的线条图案
- (void)setMaximumTrackImage:(UIImage *)image forState:(UIControlState)state;
对应的几个get方法
- (UIImage *)thumbImageForState:(UIControlState)state;- (UIImage *)minimumTrackImageForState:(UIControlState)state;- (UIImage *)maximumTrackImageForState:(UIControlState)state;
对应的设置当前状态的响应属性的方法
@property(nonatomic,readonly) UIImage* currentThumbImage;@property(nonatomic,readonly) UIImage* currentMinimumTrackImage;@property(nonatomic,readonly) UIImage* currentMaximumTrackImage;
值正在变化
[self.progressSlider addTarget:self action:@selector(sliderProgressChange:) forControlEvents:UIControlEventValueChanged];
开始滑动
[self.progressSlider addTarget:self action:@selector(sliderTouchDown:) forControlEvents:UIControlEventTouchDown];
滑动结束
[self.progressSlider addTarget:self action:@selector(sliderTouchUpInSide:) forControlEvents:UIControlEventTouchUpInside];