//声明对象
@property (nonatomic,strong) UISegmentedControl *segmentedcontrol;
//标题
NSArray *segmentArry = [NSArray arrayWithObjects:@"中国",@"美国",@"大不列颠英国",@"俄罗斯", nil];
//初始化
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];
//添加事件
[self.segmentedcontrol addTarget:self action:@selector(segmentAction:) forControlEvents:UIControlEventValueChanged];
[self.view addSubview:self.segmentedcontrol];
//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+1 animated: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:100 forSegmentAtIndex: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:YES forSegmentAtIndex:0];
//返回指定Segment是否有效
BOOL segmentBool = [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");
}