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