IOS ——UI篇—— UISegmentedControl的用法总结

 1  //第一种创建方式
 2     UISegmentedControl *seg = [[UISegmentedControl alloc]initWithItems:@[@"1",@"2",@"3"]];
 3     seg.frame = CGRectMake(40, 100, 60, 20);
 4 
 5     [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）
 6  UIImage *image =  [seg imageForSegmentAtIndex:2];//获取某一段的图片
 7      NSLog(@"图片：%@",image);
 8      NSString *str = [seg titleForSegmentAtIndex:1];//获取某一段的标题
 9     NSLog(@“第几个：%zi",segment.selectedSegmentIndex);//获取当前点击的编号
10      NSLog(@"标题：%@",str);
11     [seg setWidth:100 forSegmentAtIndex:1];//设置某一段的宽度
12     [seg setEnabled:YES];//设置整体是否被激活；
13     [seg setEnabled:YES forSegmentAtIndex:2];//设置某一段是否激活
14     seg.selectedSegmentIndex = 1;//设置某段为默认选中项
15     NSLog(@"%zi",seg.selectedSegmentIndex);//获取当前被选中的段；
16     seg.tintColor = [UIColor purpleColor];//设置边框和选中颜色；
17     [seg setBackgroundImage:[UIImage imageNamed:@"图片名"] forState:UIControlStateNormal barMetrics:UIBarMetricsDefault];//设置整体的背景图片
18 
19     //绑定监听事件
20     [seg addTarget:self action:@selector(方法名:) forControlEvents:UIControlEventValueChanged];
21     [self.view addSubview:seg];
22 
23     //第二种创建方式
24     UISegmentedControl *seg2 = [[UISegmentedControl alloc]initWithFrame:CGRectMake(40, 120, 60, 20)];
25     [seg2 insertSegmentWithTitle:@"1" atIndex:1 animated:YES];
26     [seg2 insertSegmentWithTitle:@"2" atIndex:2 animated:YES];
27     [seg2 removeSegmentAtIndex:1 animated:YES];//移除某段
28     NSLog(@"%zi",seg2.numberOfSegments);//获取段数
29     [self.view addSubview:seg2];
30 
31 }
32 
33 -(void)mySwitch
34 {
35     UISwitch *swi = (UISwitch *)[self.view viewWithTag:1];
36     NSLog(@"%d",swi.isOn);
37 
38 }