UISegmentedControl 开发笔记

//    typedef NS_ENUM(NSInteger, UISegmentedControlStyle) {
    //        UISegmentedControlStylePlain,     // large plain
    //        UISegmentedControlStyleBordered,  // large bordered
    //        UISegmentedControlStyleBar,       // small button/nav bar style. tintable
    //        UISegmentedControlStyleBezeled,   // DEPRECATED. Do not use this style.
    //    } NS_DEPRECATED_IOS(2_0, 7_0, "The segmentedControlStyle property no longer has any effect");
    
    //在ios7 里UISegmentedControlStyle 这个属性不在有效果
    
 
 
    NSArray * itemArray = [NSArray  arrayWithObjects:@"祝福",@"吻别",@"傻瓜",nil];
    
    segmentedControl = [[UISegmentedControl  alloc]initWithItems:itemArray];
segmentedControl.frame =CGRectMake(100,100,180, 40);
    
    //是否显示选中状态默认no
     segmentedControl.momentary =NO;
    
    //控件渲染色
UIColor *segmentedControltintColor = [[UIColor  alloc]initWithRed:0.1green:1.0blue:123.88alpha:1.0];
segmentedControl.tintColor
    
    //分段控件的宽度
    [segmentedControl  setWidth:100forSegmentAtIndex:0];
    
    //读取设置分段控件的宽度默认为 0
    CGFloat itemWidth = [segmentedControl  widthForSegmentAtIndex:0];
    
    //分段控件的响应事件
    [segmentedControl   addTarget:selfaction:@selector(segmengAction:)forControlEvents:UIControlEventEditingChanged];
    
   // For segments whose width value is 0, setting this property to YES attempts to adjust segment widths based on their content widths. Default is NO.
    segmentedControl.apportionsSegmentWidthsByContent =NO;
    
    //插入一个item
    [segmentedControlin  sertSegmentWithTitle:@"背包"atIndex:3animated:YES];
    
    //插入一个带图片的item
    [segmentedControl  insertSegmentWithImage:[UIImage  imageNamed:@"itemImage.png"]atIndex:4animated:YES];
    //设置一个图片的item
    [segmentedControl  setImage:[UIImage  imageNamed:@"itemImage.png"] forSegmentAtIndex:2];
    
    //读取一个item图片
UIImage *segmentedControlimageItem = [segmentedControl   imageForSegmentAtIndex:2];
    
    
    //调整图片或文本在分段控件上的偏移
CGSize textSize =CGSizeMake(1,5);
    [segmentedControl  setContentOffset:textSize forSegmentAtIndex:2];
    
    //获取偏移量 默认0
    CGSize  textfloat = [segmentedControl contentOffsetForSegmentAtIndex:2];
    
    //设置 item是否可以点击默认
    [segmentedControl  setEnabled:NO  forSegmentAtIndex:4];
    
    // 读取item 是否可以点击
    BOOL item4isbool = [segmentedControl isEnabledForSegmentAtIndex:4];
    
    //删除一个item
    [segmentedControl  removeSegmentAtIndex:0animated:YES];
    //删除说有item
    // [segmentedControl removeAllSegments];
    
    //设置Item标题
    [segmentedControl  setTitle:@"站台"forSegmentAtIndex:1];
 
    // 读取item 的标题
    NSString *titleString = [segmentedControl  titleForSegmentAtIndex:1];
 
    // 获取item 的索引号
int itemNumebr =segmentedControl.selectedSegmentIndex;
    
 
NSLog(@"title =%@",titleString);
    
    //在导航栏中间
   //  self.navigationItem.titleView = segmentedControl;
     [self.view  addSubview:segmentedControl];
 
 
 
-(void)segmentAction:(UISegmentedControl *)Seg{
    NSInteger Index = Seg.selectedSegmentIndex;
    NSLog(@"Index %i", Index);
    switch (Index) {
        case 0:
    
            break;
        case 1:
 
            break;
        case 2:
 
            break;
    
        default:
            break;
    }
}