我引领着星光的降临
UIControl简介
- UIControl是有控制功能的视图(比如UIButton，UISlider，UISegmentControl等）的父类
只要是跟控制有关的控件都是继承于该类- UIControl这个类通常我们并不直接使用，而是使用其子类
UISegmentControl
1.UISegmentedControl是iOS中的分段控件，每个segment都能够被点击，相当于继承了若干个Button。通常我们使用不同的segment切换不同的View
2.什么是UISegmentControl？
分段控制
3.方法属性
方法属性
UISlider
1.滑块控件通常用于控制视频播放进度，控制音量
2.UISlider是什么？
音量控制
- 方法属性
常用属性
代码示例
- UISegmentControl
#pragma mark - 分段控制器
NSMutableArray *imageArray = [NSMutableArray array];
for (int i = 1; i < 5; i++) {
[imageArray addObject:[NSString stringWithFormat:@"%d",i]];
}
UISegmentedControl *control = [[UISegmentedControl alloc] initWithItems:imageArray];
control.selectedSegmentIndex = 1;
for (int i = 0; i < 4; i++) {
[control setImage:[UIImage imageNamed:[NSString stringWithFormat:@"%d.png", i+1]] forSegmentAtIndex:i];
}
control.frame = CGRectMake(150, 100, 150, 100);
NSLog(@"%f", [control widthForSegmentAtIndex:0]);
control.tintColor = [UIColor redColor];
[control setWidth:70.0 forSegmentAtIndex:1];//设置指定索引选项的宽度
control.tag = 1001;
[self.view addSubview:control];
//添加事件
[control addTarget:self action:@selector(changeView:) forControlEvents:UIControlEventValueChanged];
- UISlider
#pragma mark - UISlider
UISlider *slider = [[UISlider alloc] initWithFrame:CGRectMake(200, 250, 300, 50)];
slider.maximumValue = 0;
slider.maximumValue = 255;
slider.value = 0;
slider.transform = CGAffineTransformRotate(slider.transform, M_PI_2);
[self.view addSubview:slider];
[slider addTarget:self action:@selector(sliderAction:) forControlEvents:UIControlEventValueChanged];
- UISwitch
#pragma mark - UISwitch
UISwitch *switchBtn = [[UISwitch alloc] initWithFrame:CGRectMake(200, 200, 100, 50)];
switchBtn.on = YES;
switchBtn.onTintColor = [UIColor blackColor];
switchBtn.thumbTintColor = [UIColor orangeColor];
switchBtn.tintColor = [UIColor greenColor];
[self.view addSubview:switchBtn];
[switchBtn addTarget:self action:@selector(switchAction:) forControlEvents:UIControlEventValueChanged];
- UIPageControl
#pragma mark - pageControl
_page = [[UIPageControl alloc] initWithFrame:CGRectMake(100, self.view.bounds.size.height-200, 200, 40)];
//设置页面个数
_page.numberOfPages = 4;
//设置当前页 默认为0
_page.currentPage = 1;
_page.backgroundColor = [UIColor blueColor];
_page.tag = 1001;
//小圆点的颜色
_page.currentPageIndicatorTintColor = [UIColor blackColor];
_page.pageIndicatorTintColor = [UIColor purpleColor];
//给pageControl添加事件
[_page addTarget:self action:@selector(pageAction:) forControlEvents:UIControlEventValueChanged];
[self.view addSubview:_page];
//循环创建5个图片
_imageView = [[UIImageView alloc] initWithFrame:CGRectMake(100, 300, 200, 200)];
_imageView.image = [UIImage imageNamed:[NSString stringWithFormat:@"pic%ld.jpg", _page.currentPage+1]];
[self.view addSubview:_imageView];
// [NSTimer scheduledTimerWithTimeInterval:2 target:self selector:@selector(changePage) userInfo:nil repeats:YES];
NSTimer *timer = [NSTimer timerWithTimeInterval:1 target:self selector:@selector(changePage) userInfo:nil repeats:YES];
NSRunLoop *runloop = [NSRunLoop currentRunLoop];
[runloop addTimer:timer forMode:NSDefaultRunLoopMode];
