本文介绍了UIToolBar中的UISegmentedControl的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我知道如何从IB内部将 UISegmentedControl 添加到 UIToolBar ，但是我试图通过编程方式进行相同的操作，因为我使用的是 UISegmentedControl 与没有XIB.
I know how to add a UISegmentedControl to a UIToolBar from within IB, but I am trying to do the same programmatically, because I am using a custom subclass of UISegmentedControl with doesn't have an XIB.
这是 UISegmentedControl 的代码:
SVSegmentedControl *navSC = [[SVSegmentedControl alloc] initWithSectionTitles:[NSArray arrayWithObjects:@"List", @"Calendar", nil]];
navSC.delegate = self;
[self.view addSubview:navSC];
[navSC release];
navSC.center = CGPointMake(160, 70);
我当时正在考虑做类似 [self.toolbar addSubview:navSC] 的操作，但这没显示任何内容.
I was thinking of doing something like [self.toolbar addSubview:navSC], but that didn't show anything.
推荐答案
您需要使用 UIToolbar 方法 – setItems:animated:(在文档):
You need to use the UIToolbar method – setItems:animated: (detailed in the documentation):
UIBarButtonItem *segItem = [[UIBarButtonItem alloc] initWithCustomView:navSC];
UIBarButtonItem *spaceItem = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace target:nil action:NULL];
[toolBar setItems:[NSArray arrayWithObjects:spaceItem,segItem,spaceItem,nil] animated:YES];
[segItem release];
[spaceItem release];
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