iOS实现选项卡效果的方法

LMJTab * tab = [[LMJTab alloc] initWithFrame:CGRectMake(10, 50, 300, 30) lineWidth:1 lineColor:[UIColor blackColor]];[tab setItemsWithTitle:[NSArray arrayWithObjects:@"选项一",@"选项二",@"选项三", nil] normalItemColor:[UIColor whiteColor] selectItemColor:[UIColor blackColor] normalTitleColor:[UIColor blackColor] selectTitleColor:[UIColor whiteColor] titleTextSize:15 selectItemNumber:1];tab.delegate   = self;tab.layer.cornerRadius = 5.0;[self.view addSubview:tab];

-(void)tab:(LMJTab *)tab didSelectedItemNumber:(NSInteger)number{ NSLog(@"CLICKED:%ld",number);}

@protocol LMJTabDelegate <NSObject>-(void)tab:(LMJTab *)tab didSelectedItemNumber:(NSInteger)number;@end@interface LMJTab : UIView@property (nonatomic,assign) id<LMJTabDelegate>delegate;/** * 控件初始化 * * @param frame  控件的frame * @param lineWidth 边线宽度 * @param lineColor 边线颜色 * * @return 控件实例 */-(id)initWithFrame:(CGRect)frame lineWidth:(CGFloat)lineWidth lineColor:(UIColor *)lineColor;/** * 设置选项卡的Items * * @param titles  选项卡的标题数组 * @param nItemColor 正常选项的颜色 * @param sItemColor 选中选项的颜色 * @param nTitleColor 正常标题的颜色 * @param sTitleColor 选中标题的颜色 * @param size  标题大小 * @param number  默认选中选项（取值范围:0 ~ ...）*/-(void)setItemsWithTitle:(NSArray *)titles normalItemColor:(UIColor *)nItemColor selectItemColor:(UIColor *)sItemColor normalTitleColor:(UIColor *)nTitleColor selectTitleColor:(UIColor *)sTitleColor titleTextSize:(CGFloat)size selectItemNumber:(NSInteger)number;@end