iOS 13 UIPopoverPresentationController

UIPopoverPresentationController 中的箭头 arrow的frame包含在了vc.view中。导致以前正常的布局在iOS 13上错误显示。

so =》

更新布局

使用约束(Masonry)进行布局，就利用mas_safeAreaGuide相关属性即可.e.g.

// way 1

[self.bgView mas_makeConstraints:^(MASConstraintMaker*make){

make.edges.equalTo(self.view.mas_safeAreaLayoutGuide

);

}

];

// way 2

[self.bgView mas_makeConstraints:^(MASConstraintMaker*make){

make.top.equalTo(self.view.mas_safeAreaLayoutGuideTop);

make.bottom.equalTo(self.view.mas_safeAreaLayoutGuideBottom);

make.leading.equalTo(self.view.mas_safeAreaLayoutGuideLeading);

make.trailing.equalTo(self.view.mas_safeAreaLayoutGuideTrailing);

}];

还有就是delegate每次都要设置