IOS UISlider滑动条实例

作者：朱克锋

邮箱：[email protected]

转载请注明出处：http://blog.csdn.net/linux_zkf

// 持续动作

- (void) updateThumb: (UISlider *) aSlider

{

//aSlider.value;

}

// 开始

- (void) startDrag: (UISlider *) aSlider

{

aSlider.center = CGPointMake(160.0f, 140.0f);

}

//结束

- (void) endDrag: (UISlider *) aSlider

{

aSlider.center = CGPointMake(160.0f, 140.0f);

}

{

//创建

UISlider *slider = [[UISlider alloc] initWithFrame:CGRectMake(20,20,200,10)];

slider.center = CGPointMake(160.0f, 140.0f);

slider.value = 0.0f;

// 回调与事件

[slider addTarget:self action:@selector(startDrag:) forControlEvents:UIControlEventTouchDown];

[slider addTarget:self action:@selector(updateThumb:) forControlEvents:UIControlEventValueChanged];

[slider addTarget:self action:@selector(endDrag:) forControlEvents:UIControlEventTouchUpInside | UIControlEventTouchUpOutside];

// 添加

[self.view addSubview:slider];

}