iOS 13 iPad VC modalPresentationStyle 屬性變化

iOS13 iPad上present一個頁面,發現頁面是一個小框框,一個模態的彈框

這是由於vc的modalPresentationStyle默認值在iOS13上有變化,原先默認都是UIModalPresentationFullScreen, 13變成了UIModalPresentationAutomatic,需要手動設置.

/*

Defines the presentation style that will be used for this view controller when it is presented modally. Set this property on the view controller to be presented, not the presenter.

If this property has been set to UIModalPresentationAutomatic, reading it will always return a concrete presentation style. By default UIViewController resolves UIModalPresentationAutomatic to UIModalPresentationPageSheet, but system-provided subclasses may resolve UIModalPresentationAutomatic to other concrete presentation styles. Participation in the resolution of UIModalPresentationAutomatic is reserved for system-provided view controllers.

Defaults to UIModalPresentationAutomatic on iOS starting in iOS 13.0, and UIModalPresentationFullScreen on previous versions. Defaults to UIModalPresentationFullScreen on all other platforms.

*/

@property(nonatomic,assign) UIModalPresentationStyle modalPresentationStyle API_AVAILABLE(ios(3.2));