Screen Orientation is defined as the orientation in which graphics are painted on the device. For example, the figure below has a device in a vertical and horizontal physical orientation, but a portrait screen orientation. For physical device orientation, see the orientation section of Device Motion.
This API allows changing supported screen orientations at runtime. This will take priority over the orientation key in app.json.
On both iOS and Android platforms, changes to the screen orientation will override any system settings or user preferences. On Android, it is possible to change the screen orientation while taking the user's preferred orientation into account. On iOS, user and system settings are not accessible by the application and any changes to the screen orientation will override existing settings.
Unsubscribes the listener associated with the subscription object from all orientation change updates.
A subscription object that manages the updates passed to a listener function on an orientation change.
Orientation.UNKNOWN - An unknown screen orientation. For example, the device is flat, perhaps on a table.
Orientation.PORTRAIT - Portrait interface orientation (right side up or upside down).
Orientation.PORTRAIT_UP - Right-side up portrait interface orientation.
Orientation.PORTRAIT_DOWN - Upside down portrait interface orientation.
Orientation.LANDSCAPE - Landscape interface orientation (right or left).
Orientation.LANDSCAPE_LEFT - Left landscape interface orientation.
Orientation.LANDSCAPE_RIGHT - Right landscape interface orientation.
An enum whose values can be passed to the lockAsync method.
OrientationLock.DEFAULT -- The default orientation. On iOS, this will allow all orientations except Orientation.PORTRAIT_DOWN. On Android, this lets the system decide the best orientation.
OrientationLock.ALL -- All four possible orientations
OrientationLock.PORTRAIT -- Any portrait orientation.
OrientationLock.PORTRAIT_UP -- Right-side up portrait only.
OrientationLock.PORTRAIT_DOWN -- Upside down portrait only.
OrientationLock.LANDSCAPE -- Any landscape orientation.
OrientationLock.LANDSCAPE_LEFT -- Left landscape only.
OrientationLock.LANDSCAPE_RIGHT -- Right landscape only.
OrientationLock.OTHER -- A platform specific orientation. This is not a valid policy that can be applied in lockAsync.
OrientationLock.UNKNOWN -- An unknown screen orientation lock. This is not a valid policy that can be applied in lockAsync.
Each iOS device has a default set of size classes that you can use as a guide when designing your interface.
An enum representing the lock policies that can be applied on the web platform, modelled after the W3C specification. These values can be applied through the lockPlatformAsync method.
- screenOrientationConstantAndroid (_integer_): A constant to set using the Android native [API](https://developer.android.com/reference/android/R.attr.html#screenOrientation). For example, in order to set the lock policy to [unspecified](https://developer.android.com/reference/android/content/pm/ActivityInfo.html#SCREEN_ORIENTATION_UNSPECIFIED), -1 should be passed in. (Android only)
- screenOrientationArrayIOS (Array[Orientation]): An array of orientations to allow on the iOS platform (iOS only)
- screenOrientationLockWebOrientation (_WebOrientationLock_): A web orientation lock to apply in the browser (web only)
- orientation (_Orientation_): The current orientation of the device
- verticalSizeClass (_SizeClassIOS_): The [vertical size class](https://developer.apple.com/library/archive/featuredarticles/ViewControllerPGforiPhoneOS/TheAdaptiveModel.html) of the device (iOS only)
- horizontalSizeClass (_SizeClassIOS_): The [horizontal size class](https://developer.apple.com/library/archive/featuredarticles/ViewControllerPGforiPhoneOS/TheAdaptiveModel.html) of the device (iOS only)
- orientationLock (_OrientationLock_): The current OrientationLock of the device.
- orientationInfo (_OrientationInfo_): The current OrientationInfo of the device.