@UISegmentedControl类似于UIButton,它可以提供多个选择操作,响应事件,但具有很大的局限性,我们更多的是使用自定义的,不过在这里还是介绍下它的基本用法.
NSArray *segmentedArray = [[NSArrayalloc]initWithObjects:@"1",@"2",@"3",@"4",nil]; //初始化UISegmentedControl UISegmentedControl *segmentedControl = [[UISegmentedControlalloc]initWithItems:segmentedArray]; segmentedControl.frame = CGRectMake(20.0,……) // 设置默认选择项索引 segmentedControl.selectedSegmentIndex = 2; segmentedControl.tintColor = [UIColor redColor]; // 有基本四种样式 segmentedControl.segmentedControlStyle = UISegmentedControlStylePlain; segmentedControl.segmentedControlStyle = UISegmentedControlStyleBordered; segmentedControl.segmentedControlStyle = UISegmentedControlStyleBar; segmentedControl.segmentedControlStyle = UISegmentedControlStyleBezeled; // 设置在点击后是否恢复原样 segmentedControl.momentary = YES; [segmentedControl setTitle:@"two" forSegmentAtIndex:1];//设置指定索引的题目 [segmentedControl setImage:[UIImage imageNamed:@"btn_jyy.png"] forSegmentAtIndex:3];//设置指定索引的图片 // 在指定索引插入一个选项并设置图片 [segmentedControl insertSegmentWithImage:[UIImage imageNamed:@"mei.png"] atIndex:2 animated:NO]; // 在指定索引插入一个选项并设置题目 [segmentedControl insertSegmentWithTitle:@"insert" atIndex:3 animated:NO]; // 移除指定索引的选项 [segmentedControl removeSegmentAtIndex:0 animated:NO]; // 设置指定索引选项的宽度 [segmentedControl setWidth:70.0 forSegmentAtIndex:2]; // 设置选项中图片等的左上角的位置 [segmentedControl setContentOffset:CGSizeMake(10.0,10.0) forSegmentAtIndex:4]; //获取指定索引选项的图片imageForSegmentAtIndex： UIImageView *imageForSegmentAtIndex = [[UIImageViewalloc]initWithImage:[segmentedControl imageForSegmentAtIndex:1]]; imageForSegmentAtIndex.frame = CGRectMake(60.0, 120.0, 30.0, 30.0); ; //获取指定索引选项的标题titleForSegmentAtIndex UILabel *titleForSegmentAtIndex = [[UILabel alloc]initWithFrame:CGRectMake(100.0, 160.0, 30.0, 30.0)]; titleForSegmentAtIndex.text = [segmentedControl titleForSegmentAtIndex:0]; //获取总选项数segmentedControl.numberOfSegments UILabel *numberOfSegments = [[UILabel alloc]initWithFrame:CGRectMake(140.0, 170.0, 30.0, 30.0)]; numberOfSegments.text = [NSString stringWithFormat:@"%d",segmentedControl.numberOfSegments]; //获取指定索引选项的宽度widthForSegmentAtIndex： UILabel *widthForSegmentAtIndex = [[UILabel alloc]initWithFrame:CGRectMake(180.0, 210.0, 70.0, 30.0)]; widthForSegmentAtIndex.text = [NSString stringWithFormat:@"%f",[segmentedControl widthForSegmentAtIndex:2]]; // [segmentedControl setEnabled:NO forSegmentAtIndex:4];//设置指定索引选项不可选 // BOOL enableFlag = [segmentedControl isEnabledForSegmentAtIndex:4];//判断指定索引选项是否可选 [mySegmentedControladdTarget:selfaction:@selector(didClicksegmentedControlAction:)forControlEvents:UIControlEventValueChanged]; -(void)didClicksegmentedControlAction:(UISegmentedControl *)Seg{ NSInteger Index = Seg.selectedSegmentIndex; NSLog(@"Index %i", Index); switch (Index) { case 0: [self selectmyView1]; break; case 1: [self selectmyView2]; break; case 2: [self selectmyView3]; break; case 3: [self selectmyView4]; break; ……………………………………. default: break; } }