UIKit 框架之UISegmentedControl-优快云博客

本文详细介绍了如何使用Swift编程语言创建和管理UISegmentedControl控件，包括添加、删除、配置样式、事件响应等功能。通过实例演示了如何在iOS应用中实现分段导航和选项选择。

//
//  ViewController.m
//  UISegmentedControl
//
//  Created by City--Online on 15/5/20.
//  Copyright (c) 2015年 XQB. All rights reserved.
//

#import "ViewController.h"

@interface ViewController ()
@property(nonatomic,strong) UISegmentedControl *segmentedControl;
@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    _segmentedControl =[[UISegmentedControl alloc]initWithFrame:CGRectMake(10, 100, 200, 50)];
    //属性无效
//    _segmentedControl.segmentedControlStyle=UISegmentedControlStyleBar;
           
    //点击后是否恢复原样
    _segmentedControl.momentary=NO;
    //是否根据segment的内容改变segment的宽度
    _segmentedControl.apportionsSegmentWidthsByContent=YES;
    
    //插入
    [_segmentedControl insertSegmentWithTitle:@"0" atIndex:0 animated:YES];
    [_segmentedControl insertSegmentWithTitle:@"1" atIndex:1 animated:YES];
    [_segmentedControl insertSegmentWithTitle:@"2" atIndex:2 animated:YES];
    //添加时若插入索引已经存在,则已最新的索引为准重新排序 例如下面的
    [_segmentedControl insertSegmentWithImage:[UIImage imageNamed:@"1.jpg"] atIndex:0 animated:YES];
    [_segmentedControl insertSegmentWithImage:[UIImage imageNamed:@"2.jpg"] atIndex:1 animated:YES];
    //删除时也是和插入一样 删除一个之后重新排序
    [_segmentedControl removeSegmentAtIndex:0 animated:YES];
    [_segmentedControl removeSegmentAtIndex:0 animated:YES];
    //删除所有的块
//    [_segmentedControl removeAllSegments];
    
    //标题
    [_segmentedControl setTitle:@"001" forSegmentAtIndex:0];
    NSString *titleIndex2=[_segmentedControl titleForSegmentAtIndex:2];
    NSLog(@"title=%@",titleIndex2);
    
    //图片
    [_segmentedControl setImage:[UIImage imageNamed:@"1.jpg"] forSegmentAtIndex:1];
    UIImage *imgIndex1=[_segmentedControl imageForSegmentAtIndex:1];
    NSLog(@"UIImage=%@",imgIndex1);
    
    //宽度
    [_segmentedControl setWidth:30 forSegmentAtIndex:2];
    //如果未设置则获取的为0
    float widthIndex1=[_segmentedControl widthForSegmentAtIndex:2];
    NSLog(@"width=%lf",widthIndex1);
    
    //内容偏移量
    [_segmentedControl setContentOffset:CGSizeMake(5, 5) forSegmentAtIndex:0];
    CGSize size=[_segmentedControl contentOffsetForSegmentAtIndex:2];
    NSLog(@"contentOffset=%@",NSStringFromCGSize(size));
    
    //可用性
    [_segmentedControl setEnabled:NO forSegmentAtIndex:0];
    BOOL enable=[_segmentedControl isEnabledForSegmentAtIndex:0];
    NSLog(@"%d",enable);
    
    //选中的索引值
    _segmentedControl.selectedSegmentIndex=2;
    
    //设置segmented的颜色
    _segmentedControl.tintColor=[UIColor redColor];

    //设置文本样式
    NSDictionary *dic=@{NSFontAttributeName:[UIFont systemFontOfSize:20],NSStrikethroughStyleAttributeName:@1};
    [_segmentedControl setTitleTextAttributes:dic forState:UIControlStateNormal];
    
    //获取分段控件的个数
   NSInteger count= [_segmentedControl numberOfSegments];
    NSLog(@"numberOfSegments=%ld",count);
    
    [_segmentedControl addTarget:self action:@selector(valueChanged) forControlEvents:UIControlEventValueChanged];

    [self.view addSubview:_segmentedControl];
    
}

-(void)valueChanged
{
    NSLog(@"selectedIndex=%ld",_segmentedControl.selectedSegmentIndex);
}

- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

@end