UIToolbar 调整大小会导致横向中奇怪的 UIBarButtonItem 大小
当我创建并添加 UIToolBar 和 UIBarButton 项目时，如何使工具栏和项目在两个方向上正确显示。这就是我到目前为止所得到的：
self.toolbar = [[[UIToolbar alloc]initWithFrame:CGRectMake(0, 372, 320, 44)]autorelease];
self.toolbar.autoresizingMask = UIViewAutoresizingFlexibleTopMargin | UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;
self.deleteButton = [[[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemTrash target:self action:@selector(deleteButtonClicked)] autorelease];
self.deleteButton.style = UIBarButtonItemStylePlain;
UIBarButtonItem *flexibleSpace = [[[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace target:nil action:nil] autorelease];
self.shareButton = [[[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemAction target:self action:@selector(shareButtonClicked)] autorelease];
self.shareButton.style = UIBarButtonItemStylePlain;
self.navigationItem.leftBarButtonItem = backItem;
NSArray *toolbarItems = [NSArray arrayWithObjects:self.shareButton,flexibleSpace,self.deleteButton,nil];
[self.toolbar setItems:toolbarItems animated:NO];
正如您从图像中看到的，UIBarButtonItems 在纵向中看起来是正确的，但在横向中却奇怪地被压扁并偏离中心（尤其是垃圾桶图标）。我是否缺少一个明显的解决方案，或者我是否必须手动调整大小才能得到正确的结果？
这是一个微妙的差异，但它应该是这样的： 
When I create and add a UIToolBar and UIBarButton items, how can I get the toolbar and items to appear properly in both orientations. This is what I have so far:
self.toolbar = [[[UIToolbar alloc]initWithFrame:CGRectMake(0, 372, 320, 44)]autorelease];
self.toolbar.autoresizingMask = UIViewAutoresizingFlexibleTopMargin | UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;
self.deleteButton = [[[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemTrash target:self action:@selector(deleteButtonClicked)] autorelease];
self.deleteButton.style = UIBarButtonItemStylePlain;
UIBarButtonItem *flexibleSpace = [[[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace target:nil action:nil] autorelease];
self.shareButton = [[[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemAction target:self action:@selector(shareButtonClicked)] autorelease];
self.shareButton.style = UIBarButtonItemStylePlain;
self.navigationItem.leftBarButtonItem = backItem;
NSArray *toolbarItems = [NSArray arrayWithObjects:self.shareButton,flexibleSpace,self.deleteButton,nil];
[self.toolbar setItems:toolbarItems animated:NO];
As you can see from the images, the UIBarButtonItems look correct in portrait, but weirdly squished and off center (especially the trash icon), in landscape. Is there an obvious solution I'm missing, or do I have to do manual resizing to get this right?
It's a subtle difference, but here's what it should look like:
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您必须查看 UIToolBar 和按钮的
Size Inspector中的Autoresizing选项。UIToolBar可能还为Autoresize subviews设置了复选标记，取消选中该复选标记，这样它就不会影响您的按钮。You have to look at the
Autoresizingoption in theSize inspectorboth for the UIToolBar and the buttons.UIToolBarmight also have a checkmark set forAutoresize subviewsuncheck that so it does not influence your buttons.至少在 iOS 5 之前，答案是使用 UINavigationController 的内置工具栏，而不是创建自己的工具栏。内置工具栏将自动正确调整大小。
The answer, at least until iOS 5 is to use the
UINavigationController's built in toolbar instead of creating your own. The built in toolbar will resize correctly and automatically.