UIPopoverController 的令人困惑的行为
我试图设置一个弹出窗口，当我按下按钮时显示 UIDatePicker，但是我遇到了一些非常令人困惑的行为。我创建了一个视图控制器，其中只包含 UIDatePicker，将其连接到我需要它的类中，并将其添加到新的 UIPopoverController 中，如下所示：
self.timePickerPopoverController = [[UIPopoverController alloc] initWithContentViewController:self.timePickerViewController];
然后我像这样呈现它：
[timePickerPopoverController presentPopoverFromRect:prepTimeButton.frame inView:self.view permittedArrowDirections:UIPopoverArrowDirectionAny animated:YES];
（prepTimeButton 是按下的按钮）。但是，我只是得到以下结果：
而不是显示在按下的按钮旁边和目标处大小（现在太高了；应该只是日期选择器的大小）。我还尝试为其提供一个自定义视图，以显示要显示的正确位置和大小，但这并没有多大帮助（只是将弹出窗口移到屏幕的右半部分）。我做错了什么以及如何解决它？
I'm trying to set up a popover to appear that displays a UIDatePicker when I press a button, however I'm getting some very confusing behavior. I created a view controller that housed nothing but the UIDatePicker, wired one up in the class i needed it in, and added it to a new UIPopoverController like this:
self.timePickerPopoverController = [[UIPopoverController alloc] initWithContentViewController:self.timePickerViewController];
then I present it like so:
[timePickerPopoverController presentPopoverFromRect:prepTimeButton.frame inView:self.view permittedArrowDirections:UIPopoverArrowDirectionAny animated:YES];
(prepTimeButton being the button that was pressed). However, I just get the following result:
Instead of it displaying next to the button that was pressed and at the target size (it's way too tall right now; should only be the size of the date picker). I also tried giving it a custom view of the proper location and size in which to display, but that didn't help much (just shifted the popover to the right half of the screen). What am I doing wrong and how do I fix it?
如果你对这篇内容有疑问，欢迎到本站社区发帖提问 参与讨论，获取更多帮助，或者扫码二维码加入 Web 技术交流群。
绑定邮箱获取回复消息
由于您还没有绑定你的真实邮箱，如果其他用户或者作者回复了您的评论，将不能在第一时间通知您！
发布评论
评论（2）
self.view 是 prepTimeButton 的直接超级视图吗？也许 prepTimeButton 嵌套在子视图中，在这种情况下，您需要将其用作 inView: 参数（或转换坐标）。
您是否设置了视图控制器的
contentSizeForViewInPopover属性？Is
self.viewthe direct superview ofprepTimeButton? PerhapsprepTimeButtonis nested in a subview, in that case you'd need to use that as theinView:parameter (or convert the coordinates).Did you set the
contentSizeForViewInPopoverproperty of your view controller?确保在内部视图控制器上设置
contentSizeForViewInPopover并在UIPopoverController本身上设置popoverContentSize。Make sure to set both
contentSizeForViewInPopoveron the internal view controller andpopoverContentSizeon theUIPopoverControlleritself.