去掉segMentedControl的边框和改变选中字体的样式

一、初始化

//初始化  并赋值
 UISegmentedControl *segmentControl = [[UISegmentedControl alloc]initWithItems:@[@"头条",@"体育",@"新闻",@"科技",@"娱乐"]];

//给segmentControl一个位置  让它显示

 segmentControl.frame = CGRectMake(0, 60, CGRectGetWidth([UIScreen mainScreen].bounds), 50);

 [self.view addSubview:segmentControl];

二、清除掉边框颜色  此时会清除掉所有文字

 segmentControl.tintColor = [UIColor clearColor];

三、先初始化字典 设置字体后  便解决了所有问题

NSDictionary *dicOne = @{NSFontAttributeName:[UIFont boldSystemFontOfSize:20],NSForegroundColorAttributeName:[UIColor blackColor]};

四、把字典的值  给segmentControl  注意 setTitleTextAttributes 需要一个字典

[segmentControl setTitleTextAttributes:dicOne forState:UIControlStateNormal];

五、选中状态同样

 NSDictionary *dicTwo = @{NSFontAttributeName:[UIFont boldSystemFontOfSize:25],NSForegroundColorAttributeName:[UIColor redColor]};

[segmentControl setTitleTextAttributes:dicTwo forState:UIControlStateSelected];