how to remove the default gray colour when change detent in modal presentation from medium to large ?

I need to remove this gray colour attached in above image while drag page sheet or move it I need to make it Transparent colour while moving modal to be like this when move from medium detent to large one

CodePudding user response：

You should have to set the view background color to be clear before presenting the modal

self.view.backgroundColor = .clear
self.modalPresentationStyle = .currentContext
self.present(nextVC, animated: true, completion: nil)

CodePudding user response：

If you are using UISheetPresentationController to present. You can look at largestUndimmedDetentIdentifier.

If you set that variable to .large your medium detent will have no dimmed background.

if let sheet = vc.sheetPresentationController {
    sheet.detents = [.medium(), .large()]
    sheet.prefersGrabberVisible = true
    sheet.selectedDetentIdentifier = .medium
    sheet.prefersScrollingExpandsWhenScrolledToEdge = false
    sheet.prefersEdgeAttachedInCompactHeight = true
    sheet.largestUndimmedDetentIdentifier = .large
}