UISegmentedControl類似于UIButton,它可以提供多個選擇操作,響應(yīng)事件,但具有很大的局限性,我們更多的是使用自定義的,不過在這里還是介紹下它的基本用法

NSArray *segmentedArray = [[NSArrayalloc]initWithObjects:@"1",@"2",@"3",@"4",nil];

//初始化UISegmentedControl

UISegmentedControl *segmentedControl = [[UISegmentedControlalloc]initWithItems:segmentedArray];

segmentedControl.frame = CGRectMake(20.0,……)

// 設(shè)置默認選擇項索引

segmentedControl.selectedSegmentIndex = 2;

segmentedControl.tintColor = [UIColor redColor];

// 有基本四種樣式 ? ios 7 ?之后不用了

segmentedControl.segmentedControlStyle = UISegmentedControlStylePlain;

segmentedControl.segmentedControlStyle = UISegmentedControlStyleBordered;

segmentedControl.segmentedControlStyle = UISegmentedControlStyleBar;

segmentedControl.segmentedControlStyle = UISegmentedControlStyleBezeled;

// 設(shè)置在點擊后是否恢復(fù)原樣

segmentedControl.momentary = YES;

[segmentedControl setTitle:@"two" forSegmentAtIndex:1];//設(shè)置指定索引的題目

[segmentedControl setImage:[UIImage imageNamed:@"btn_jyy.png"] forSegmentAtIndex:3];//設(shè)置指定索引的圖片

// 在指定索引插入一個選項并設(shè)置圖片

[segmentedControl insertSegmentWithImage:[UIImage imageNamed:@"mei.png"] atIndex:2 animated:NO];

// 在指定索引插入一個選項并設(shè)置題目

[segmentedControl insertSegmentWithTitle:@"insert" atIndex:3 animated:NO];

// 移除指定索引的選項

[segmentedControl removeSegmentAtIndex:0 animated:NO];

// 設(shè)置指定索引選項的寬度

[segmentedControl setWidth:70.0 forSegmentAtIndex:2];

// 設(shè)置選項中圖片等的左上角的位置

[segmentedControl setContentOffset:CGSizeMake(10.0,10.0) forSegmentAtIndex:4];

//獲取指定索引選項的圖片imageForSegmentAtIndex：

UIImageView *imageForSegmentAtIndex = [[UIImageViewalloc]initWithImage:[segmentedControl imageForSegmentAtIndex:1]];

imageForSegmentAtIndex.frame = CGRectMake(60.0, 120.0, 30.0, 30.0);? ;

//獲取指定索引選項的標(biāo)題titleForSegmentAtIndex

UILabel *titleForSegmentAtIndex = [[UILabel alloc]initWithFrame:CGRectMake(100.0, 160.0, 30.0, 30.0)];

titleForSegmentAtIndex.text = [segmentedControl titleForSegmentAtIndex:0];

//獲取總選項數(shù)segmentedControl.numberOfSegments

UILabel *numberOfSegments = [[UILabel alloc]initWithFrame:CGRectMake(140.0, 170.0, 30.0, 30.0)];

numberOfSegments.text = [NSString stringWithFormat:@"%d",segmentedControl.numberOfSegments];

//獲取指定索引選項的寬度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];//設(shè)置指定索引選項不可選

// BOOL enableFlag = [segmentedControl isEnabledForSegmentAtIndex:4];//判斷指定索引選項是否可選

[mySegmentedControladdTarget:selfaction:@selector(didClicksegmentedControlAction:)forControlEvents:UIControlEventValueChanged];

-(void)didClicksegmentedControlAction:(UISegmentedControl *)Seg{

NSInteger Index = Seg.selectedSegmentIndex;

......}