UI_UISlider

- (void)viewDidLoad {    [super viewDidLoad];    // Do any additional setup after loading the view.    self.view.backgroundColor = [UIColor whiteColor];    1.创建UISlider.    UISlider *slider = [[UISlider alloc] initWithFrame:CGRectMake(100, 300, 200, 100)];    slider.layer.borderWidth = 1;    slider.layer.cornerRadius = 10;    slider.backgroundColor = [UIColor greenColor];    [self.view addSubview:slider];    [slider release];    2.添加一个出发事件.    [slider addTarget:self action:@selector(sliderAction:) forControlEvents:UIControlEventValueChanged];    3.最大值和最小值.    slider.minimumValue = 0.5;    slider.maximumValue = 10;}4.实现事件.- (void)sliderAction:(UISlider *)slider {    self.imageView.animationDuration = slider.value;    5.给对应的图片视图添加动画    [self.imageView startAnimating];}