iOS控件之UISlider

滑动控件UISlider视图

一，作用：控制系统声音，或者表示播放进度等等

二，常用属性

// 设置获取slider的value值

@property(nonatomic) float value;

// 设置slider的最小值

@property(nonatomic) float minimumValue;

// 设置slider的最大值

@property(nonatomic) float maximumValue;

// 设置图片

@property(nonatomic,retain) UIImage *minimumValueImage;

// 设置图片

@property(nonatomic,retain) UIImage *maximumValueImage;

// 设置slider的value值，是否存在动画
- (void)setValue:(float)value animated:(BOOL)animated

三，UISliderDemo

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
self.window = [[[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]] autorelease];
self.window.backgroundColor = [UIColor whiteColor];
[self.window makeKeyAndVisible];

UISlider *slider = [[UISlider alloc] initWithFrame:CGRectMake(60, 100, 200, 20)];
slider.tag = 101;
slider.maximumValue = 10;
slider.minimumValue = 0;
// [slider addTarget:self action:@selector(change:) forControlEvents:UIControlEventValueChanged];
// [slider addTarget:self action:@selector(touchUpInside:) forControlEvents:UIControlEventTouchUpInside];
[slider addTarget:self action:@selector(test1) forControlEvents:UIControlEventTouchDragInside];
[slider addTarget:self action:@selector(test2) forControlEvents:UIControlEventTouchDragOutside];
// slider.value = 5; // 0 ~ 1
[self.window addSubview:slider];
[slider release];

// [NSTimer scheduledTimerWithTimeInterval:1 target:self selector:@selector(test:) userInfo:slider repeats:NO];

return YES;
}

- (void)test:(NSTimer *)timer
{
UISlider *slider = [timer userInfo];
[slider setValue:5 animated:NO];
}

- (void)change:(UISlider *)slider
{
NSLog(@"slider value : %.2f", slider.value);
}

- (void)touchUpInside:(UISlider *)slider
{
NSLog(@"touchUpInside : %.2f", slider.value);
}

- (void)test1
{
NSLog(@"test1");
}

- (void)test2
{
NSLog(@"test2");
}