xcode UIToolBar 中的 UISegmentedControl
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UISegmentedControl Within UIToolBar
提问by PengOne
I know how to add a UISegmentedControlto a UIToolBarfrom within IB, but I am trying to do the same programmatically, because I am using a custom subclass of UISegmentedControlwith doesn't have an XIB.
我知道如何从 IB中将 a 添加UISegmentedControl到 a UIToolBar，但我试图以编程方式执行相同的操作，因为我使用的UISegmentedControlwith的自定义子类没有 XIB。
This is the code for the UISegmentedControl:
这是代码UISegmentedControl：
SVSegmentedControl *navSC = [[SVSegmentedControl alloc] initWithSectionTitles:[NSArray arrayWithObjects:@"List", @"Calendar", nil]];
navSC.delegate = self;
[self.view addSubview:navSC];
[navSC release];
navSC.center = CGPointMake(160, 70);
I was thinking of doing something like [self.toolbar addSubview:navSC], but that didn't show anything.
我正在考虑做类似的事情[self.toolbar addSubview:navSC]，但没有显示任何内容。
回答by PengOne
You need to use the UIToolbarmethod – setItems:animated:(detailed in the documentation):
您需要使用该UIToolbar方法– setItems:animated:（在文档中有详细说明）：
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];
