IOS ——UI篇—— UISegmentedControl的用法总结

 //第一种创建方式
    UISegmentedControl *seg = [[UISegmentedControl alloc]initWithItems:@[@"1",@"2",@"3"]];
    seg.frame = CGRectMake(40, 100, 60, 20);

    [seg insertSegmentWithImage:[UIImage imageNamed:@"图片名"] atIndex:4 animated:YES];//给某一段设置图片（图片为带边框透明的才可以完整显示，其它图片不能完整显示）
 UIImage *image =  [seg imageForSegmentAtIndex:2];//获取某一段的图片
     NSLog(@"图片：%@",image);
     NSString *str = [seg titleForSegmentAtIndex:1];//获取某一段的标题
    NSLog(@“第几个：%zi",segment.selectedSegmentIndex);//获取当前点击的编号
     NSLog(@"标题：%@",str);
    [seg setWidth:100 forSegmentAtIndex:1];//设置某一段的宽度
    [seg setEnabled:YES];//设置整体是否被激活；
    [seg setEnabled:YES forSegmentAtIndex:2];//设置某一段是否激活
    seg.selectedSegmentIndex = 1;//设置某段为默认选中项
    NSLog(@"%zi",seg.selectedSegmentIndex);//获取当前被选中的段；
    seg.tintColor = [UIColor purpleColor];//设置边框和选中颜色；
    [seg setBackgroundImage:[UIImage imageNamed:@"图片名"] forState:UIControlStateNormal barMetrics:UIBarMetricsDefault];//设置整体的背景图片

    //绑定监听事件
    [seg addTarget:self action:@selector(方法名:) forControlEvents:UIControlEventValueChanged];
    [self.view addSubview:seg];

    //第二种创建方式
    UISegmentedControl *seg2 = [[UISegmentedControl alloc]initWithFrame:CGRectMake(40, 120, 60, 20)];
    [seg2 insertSegmentWithTitle:@"1" atIndex:1 animated:YES];
    [seg2 insertSegmentWithTitle:@"2" atIndex:2 animated:YES];
    [seg2 removeSegmentAtIndex:1 animated:YES];//移除某段
    NSLog(@"%zi",seg2.numberOfSegments);//获取段数
    [self.view addSubview:seg2];

}

-(void)mySwitch
{
    UISwitch *swi = (UISwitch *)[self.view viewWithTag:1];
    NSLog(@"%d",swi.isOn);

}