移动 UIToolbar 的最佳方法是什么？
这是一个有趣的问题。在 iPhone 上，我设置了一个视图，屏幕底部有一个工具栏。我目前正在尝试将其打造成一个通用应用程序，以便它也可以在 iPad 上运行。我希望工具栏位于 iPad 屏幕的顶部，因此在特定 viewController 的 viewDidLoad 方法中我有以下代码。
if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad) {
//move the toolbar to the top of the page and move the webview down by the height of the toolbar
CGRect toolBarFrame = self.aToolBar.frame;
CGRect webFrame = self.aWebView.frame;
webFrame.origin.y = toolBarFrame.size.height;
[self.aWebView setFrame:webFrame];
toolBarFrame.origin.y = 0;
[self.aToolBar setFrame:toolBarFrame];
[Utils errorString:[NSString stringWithFormat:@"origen: x=%f y=%f", self.aToolBar.frame.origin.x, self.aToolBar.frame.origin.y]];
[Utils errorString:[NSString stringWithFormat:@"origen: x=%f y=%f", self.aWebView.frame.origin.x, self.aWebView.frame.origin.y]];
}
我遇到的问题是 webView 向下移动得很好，但工具栏仅向上移动到 iPhone 屏幕的高度。对 errorString 的调用告诉我 webView 的原点位于 0,44（应该在的位置），工具栏的原点位于 0,0，但它实际上位于屏幕中间的某个位置！
有人知道这里发生了什么事吗？
Here is an interesting problem. On the iPhone, I have a view set up that has a toolbar on the bottom of the screen. I am currently trying to make this a universal app so that it runs on iPad as well. I would like the toolbar to be at the top of the iPad screen, so in the viewDidLoad method of the specific viewController I have the following code.
if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad) {
//move the toolbar to the top of the page and move the webview down by the height of the toolbar
CGRect toolBarFrame = self.aToolBar.frame;
CGRect webFrame = self.aWebView.frame;
webFrame.origin.y = toolBarFrame.size.height;
[self.aWebView setFrame:webFrame];
toolBarFrame.origin.y = 0;
[self.aToolBar setFrame:toolBarFrame];
[Utils errorString:[NSString stringWithFormat:@"origen: x=%f y=%f", self.aToolBar.frame.origin.x, self.aToolBar.frame.origin.y]];
[Utils errorString:[NSString stringWithFormat:@"origen: x=%f y=%f", self.aWebView.frame.origin.x, self.aWebView.frame.origin.y]];
}
The problem I am having is that the webView moves down fine, but the toolbar only moves up to about what seems to be the height of a iPhone screen. The call to errorString tells me that the webView's origin is at 0,44 (where it should be) and that the toolbar's origin is at 0,0, but it is actually somewhere in the middle of the screen!
Anybody have a clue what is going on here?
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我想说这是因为框架被设置为 iPhone 框架的顶部（因此距底部 320 像素），然后视图被调整大小以适合 iPad 屏幕。然而，UIToolbar 默认设置为粘在窗口底部（固定底部边距和灵活顶部边距），因此它距底部保持 320 像素。
要解决此问题，请尝试：
在设置工具栏的框架之前（如果在设置框架之前不起作用，请尝试将其放在之后）
I'd say this is because the frame is being set to the top of an iPhone frame (so 320px from the bottom), and then afterwards the view is being resized to fit the iPad screen. However UIToolbar by default is set to stick to the bottom of the window (fixed bottom margin, and flexible top margin) so it's staying 320px from the bottom.
To fix this try:
before setting the toolbar's frame (if it doesn't work before setting the frame, try putting it after)