在navgationController中添加UISegmentedControl

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  NSArray *segmentedArray = [NSArray arrayWithObjects:@"患者基本信息",@"患者信息",nil];

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

    segmentedControl.backgroundColor = [UIColor clearColor];

    segmentedControl.selectedSegmentIndex = 0;//设置默认选择项索引

   // [segmentedControl setWidth:70.0 forSegmentAtIndex:2];//设置指定索引选项的宽度

    [segmentedControl addTarget:self action:@selector(segmentAction) forControlEvents:UIControlEventValueChanged];

    self.navigationItem.titleView = segmentedControl;

    self.navigationItem.titleView.backgroundColor = [UIColor clearColor];

    self.navigationItem.titleView.tintColor = [UIColor whiteColor];

在navgationController中添加UISegmentedControl

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原文地址：http://www.cnblogs.com/yyj900165/p/4743158.html