iOS Slider使用

@property (nonatomic,strong)UISlider *VolSlider;




_VolSlider=[[UISlider alloc]initWithFrame:CGRectMake(fDeviceWidth/4,fDeviceHeight*3/4-64,fDeviceWidth/2,30)];
    _VolSlider.minimumValue=0.0;
    _VolSlider.maximumValue=30.0;
    _VolSlider.value=10;//设置默认值
    
    //07.minimumTrackTintColor : 小于滑块当前值滑块条的颜色，默认为蓝色
    _VolSlider.minimumTrackTintColor = [UIColor redColor];
//    //08.maximumTrackTintColor: 大于滑块当前值滑块条的颜色，默认为白色
//    slider.maximumTrackTintColor = [UIColor whiteColor];
//
//    //09.thumbTintColor : 当前滑块的颜色，默认为白色
//    slider.thumbTintColor = [UIColor whiteColor];
    [_VolSlider addTarget:self action:@selector(sliderValueChanged:) forControlEvents:UIControlEventValueChanged];
    _VolSlider.continuous = NO;//当放开手., 值才确定下来
    
    //把slider添加到视图上进行显示
    [self.view addSubview:_VolSlider];


-(void)sliderValueChanged:(UISlider *)paramSender{
    if ([paramSender isEqual:self.VolSlider]) {
        NSLog(@"New value=%0.2f",paramSender.value);
    }
}