无法获得导航栏左侧的分段控件

Question

我试图通过编程方式将UISegementedControl添加到导航栏的左侧。我可以通过将控件设置为titleView来显示它，如下所示。以下是我的代码

NSArray *buttonNames = [NSArray arrayWithObjects:@"One", @"Two", nil]; 
UISegmentedControl* segmentedControl = [[UISegmentedControl alloc] 
segmentedControl.segmentedControlStyle = UISegmentedControlStyleBar; 

// instead of the following I would like to move to left side of the nav bar 
self.navigationItem.titleView = segmentedControl; 

任何帮助表示赞赏。

Answer 1

你试过

[[UIBarButtonItem alloc] initWithCustomView:...] 

？

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为了更加精确，可能像

UIBarButtonItem* item = [[UIBarButtonItem alloc] initWithCustomView:segmentedControl]; 
self.navigationItem.leftBarButtonItem = item; 
[item release];