问题描述
iOS 13 为模态引入了 modalPresentationStyle
.pageSheet
(及其同级 .formSheet
)的新设计呈现的视图控制器...
iOS 13 introduces a new design of modalPresentationStyle
.pageSheet
(and its sibling .formSheet
) for modally presented view controllers…
...我们可以通过向下滑动呈现的视图控制器来关闭这些表单(交互式关闭).尽管新的pull-to-dismiss"功能非常有用,但它可能并不总是可取的.
…and we can dismiss these sheets by sliding the presented view controller down (interactive dismissal). Although the new "pull-to-dismiss" feature is pretty useful, it may not always be desirable.
问题:我们如何关闭交互式解雇?- 请记住,我们保持演示文稿风格相同.
THE QUESTION: How can we turn the interactive dismissal off?- Bear in mind we keep the presentation style the same.
推荐答案
选项 1:
viewController.isModalInPresentation = true
(禁用交互式 .pageSheet
解雇行为就像这样.)
(Disabled interactive .pageSheet
dismissal acts like this.)
- 从 iOS 13 开始,
UIViewController
包含一个名为isModalInPresentation
的新属性,必须将其设置为true
以防止交互式关闭. - 它基本上忽略了视图控制器边界之外的事件.如果您不仅使用自动样式,还使用
.popover
等演示样式,请记住这一点. - 此属性默认为
false
.
- Since the iOS 13,
UIViewController
contains a new property calledisModalInPresentation
which must be set totrue
to prevent the interactive dismissal. - It basically ignores events outside the view controller's bounds. Bear that in mind if you are using not only the automatic style but also presentation styles like
.popover
etc. - This property is
false
by default.
来自官方文档:如果 true
,UIKit 会忽略视图控制器边界之外的事件,并防止视图控制器在屏幕上时交互式关闭.
选项 2:
func presentationControllerShouldDismiss(_ presentationController: UIPresentationController) -> Bool {
return false
}
- 从 iOS 13 开始,
UIAdaptivePresentationControllerDelegate
包含一个名为presentationControllerShouldDismiss
的新方法. - 仅当呈现的视图控制器未以编程方式关闭且其
isModalInPresentation
属性设置为false
时,才会调用此方法. - Since the iOS 13,
UIAdaptivePresentationControllerDelegate
contains a new method calledpresentationControllerShouldDismiss
. - This method is called only if the presented view controller is not dismissed programmatically and its
isModalInPresentation
property is set tofalse
.
提示:不要忘记分配presentationController的委托.
这篇关于禁用呈现的视图控制器的交互式关闭的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!