第四章：第四节 UISwitch、UISegmentContro

step—1:UISwitch

 //1、声明对象

@property(nonatomic,strong)UISwitch*switchX;

//2、创建

self.switchX= [[UISwitchalloc]init];

self.switchX.frame=CGRectMake(self.view.frame.size.width/2,self.view.frame.size.height/2,51,31);

//用于打开开关外观的颜色

self.switchX.onTintColor= [UIColorgreenColor];

 //用于在开关关闭时调整开关轮廓的颜色

 self.switchX.tintColor= [UIColorpurpleColor];

 //thumb外观颜色

 self.switchX.thumbTintColor= [UIColorblueColor];

 //设置初始为ON

 [self.switchX setOn:YESanimated:YES];

 //3、添加事件

 [self.switchXaddTarget:selfaction:@selector(switchAction:)forControlEvents:UIControlEventValueChanged];

 //4、添加视图

 [self.viewaddSubview:self.switchX];

//5、方法的实现

- (void)switchAction:(UISwitch*)click{

    NSLog(@"%@", click.isOn?@"开...":@"关...");

}

step—2:UISegmentControl

 //1、声明对象

@property(nonatomic,strong) UISegmentedControl *segmentedcontrol;

//2.添加标题数组标题

    NSArray *segmentArry = [NSArray arrayWithObjects:@"中国",@"美国",@"大不列颠英国",@"环俄罗斯",nil];

   //3、创建

   self.segmentedcontrol = [[UISegmentedControl alloc] initWithItems:segmentArry];

   //iOS 7.0后被弃用

   //self.segmentedcontrol.segmentedControlStyle = UISegmentedControlStylePlain;

   self.segmentedcontrol.frame = CGRectMake(20,40,self.view.frame.size.width-40,30);

   //默认值为NO，即点击后保持选中状态，如果设置为YES则，只是短暂的显示选中状态

   self.segmentedcontrol.momentary =YES;

   //指示控件是否根据其内容宽度来调整片段宽度

   self.segmentedcontrol.apportionsSegmentWidthsByContent =YES;

   //设置UISegmentedControl的边框、分割线、文字、点击后的颜色

   self.segmentedcontrol.tintColor = [UIColor blueColor];

   //通过Attribute字符串属性字典设置Segment标签属性(正常状态下)

    [self.segmentedcontrol setTitleTextAttributes:@{NSFontAttributeName:[UIFont systemFontOfSize:15.0],NSForegroundColorAttributeName:[UIColor purpleColor]}forState:UIControlStateNormal];

   //通过Attribute字符串属性字典设置Segment标签属性(选中状态下)

     [self.segmentedcontrol setTitleTextAttributes:@{NSFontAttributeName:[UIFont systemFontOfSize:15.0],NSForegroundColorAttributeName:[UIColor redColor]}forState:UIControlStateSelected];

   //3、添加事件

   [self.segmentedcontrol addTarget:selfaction:@selector(segmentAction:) forControlEvents:UIControlEventValueChanged];

   //4、添加视图

   [self.view addSubview:self.segmentedcontrol];

//5、事件点击方法

- (void)segmentAction:(UISegmentedControl *)click{

   //UISegmentedControl的段数

    NSInteger totelindext =self.segmentedcontrol.numberOfSegments;

   //当前选中Segment

    NSInteger selectindext =self.segmentedcontrol.selectedSegmentIndex;

    NSLog(@"共分：%ld段,当前选中：%ld段",totelindext,selectindext);

   //指定索引点插入新标题

    [self.segmentedcontrol insertSegmentWithTitle:@"德国"atIndex:selectindext animated:YES];

   //指定索引点插入新图片

    [self.segmentedcontrol insertSegmentWithImage:[UIImage imageNamed:@"flag"] atIndex:selectindext animated:YES];

   //移除指定Segment

    [self.segmentedcontrol removeSegmentAtIndex:selectindext+1animated:YES];

   //移除全部Segment

    [self.segmentedcontrol removeAllSegments];

   //设置指定Segment的标题

    [self.segmentedcontrol setTitle:@"日本"forSegmentAtIndex:0];

   //返回指定Segment的标题

    NSString *segmentTitle = [self.segmentedcontrol titleForSegmentAtIndex:0];

    NSLog(@"索引为：0的标题设置为：%@",segmentTitle);

   //设置指定Segment的image

    [self.segmentedcontrol setImage:[UIImage imageNamed:@"flag"] forSegmentAtIndex:0];

   //返回指定Segment的image

    UIImage *segmentImage = [self.segmentedcontrol imageForSegmentAtIndex:0];

     NSLog(@"索引为：0的图片设置为：%@",segmentImage);

   //设置指定Segment的宽度默认（0，0）自适应

    [self.segmentedcontrol setWidth:100forSegmentAtIndex:0];

   //返回指定Segment的宽度

    CGFloat segmentW = [self.segmentedcontrol widthForSegmentAtIndex:0];

    NSLog(@"索引为：0的Segment宽度设置为：%.2f",segmentW);

   //设置指定Segment的偏移量

    [self.segmentedcontrol setContentOffset:CGSizeMake(5.0,2.0) forSegmentAtIndex:0];

   //获取指定Segment的偏移量

    CGSize segmentSize = [self.segmentedcontrol contentOffsetForSegmentAtIndex:0];

     NSLog(@"索引为：0的Segment偏移量设置为：%@", NSStringFromCGSize(segmentSize));

   //设置指定Segment是否有效

    [self.segmentedcontrol setEnabled:YESforSegmentAtIndex:0];

   //返回指定Segment是否有效

   BOOLsegmentBool = [self.segmentedcontrol isEnabledForSegmentAtIndex:0];

    NSLog(@"索引为：0的Segment当前是否可以点击：%@",segmentBool ?@"可以":@"不可以");

}

step—3:UISlider

 //1、声明对象

@property(nonatomic,strong)UISlider*slider;

//2、创建

 self.slider= [[UISlideralloc]init];

   //3、设置属性

   self.slider.backgroundColor= [UIColorgrayColor];

   self.slider.alpha=0.8;

   self.slider.frame=CGRectMake((self.view.frame.size.width-200)/2.0,self.view.frame.size.height/2.0,200,31);

   //设置最小值

   self.slider.minimumValue=0.0f;

   //设置最大值

   self.slider.maximumValue=1.0f;

   //设置当前值

   self.slider.value=0.7f;

   //设置滑过部分颜色

   self.slider.minimumTrackTintColor= [UIColorblueColor];

   //设置未滑过部分颜色

   self.slider.maximumTrackTintColor= [UIColorwhiteColor];

   //设置thumb颜色

   self.slider.thumbTintColor= [UIColorgreenColor];

   //设置minimumValueImage

     [self.slidersetMinimumValueImage:[UIImageimageNamed:@"min"]];

   //设置maximumValueImage

     [self.slidersetMaximumValueImage:[UIImageimageNamed:@"max"]];

   //前用于渲染滑块的最大轨迹图像

   //[self.slider setMaximumTrackImage:[UIImage imageNamed:@"MaximumTrack"] forState:UIControlStateNormal];

   //当前用于渲染滑块的最小轨迹图像

   //[self.slider setMinimumTrackImage:[UIImage imageNamed:@"MinimumTrack"] forState:UIControlStateNormal];

   //设置ThumbImage

   //[self.slider setThumbImage:[UIImage imageNamed:@""] forState:UIControlStateSelected];

   //滑块值更改是否生成连续的更新事件

   self.slider.continuous=YES;

    //3、添加事件

    [self.slideraddTarget:selfaction:@selector(sliderAction:)forControlEvents:UIControlEventValueChanged];

    //4、添加视图

    [self.viewaddSubview:self.slider];

//5、事件点击方法

- (void)sliderAction:(UISlider*)slider{

   CGFloatvalue =self.slider.value;

   NSLog(@"value %f",value);

}