UIDeviceOrientationIsPortrait(_:) Declarationfunc UIDeviceOrientationIsPortrait(_ orientation: UIDeviceOrientation) -> Bool See AlsoFunctionsUIDeviceOrientationIsLandscape(_:)UIDeviceOrientationIsValidInterfaceOrientation(_:)UIInterfaceOrientationIsLandscape(_:)UIInterfaceOrientationIsPortrait(_:)UIWritingToolsCoordinatorTextAnimationDebugDescription(_:)