Thanks for tuning in to Google I/O! Watch AR content on-demand.

ArCoreApk


          public     class
          ArCoreApk

Static methods for managing the status of ARCore on the device.

Nested Classes

`enum`	`ArCoreApk.Availability`	Describes the current state of ARCore availability on the device.
`enum`	`ArCoreApk.InstallBehavior`	Controls the behavior of the installation UI.
`enum`	`ArCoreApk.InstallStatus`	Indicates the outcome of a call to `requestInstall()`.
`enum`	`ArCoreApk.UserMessageType`	Controls the message displayed by the installation UI.

Public Methods

`ArCoreApk.Availability`	`checkAvailability(Context applicationContext)` Determines if ARCore is supported on this device.
`void`	`checkAvailabilityAsync(Context applicationContext, Consumer<ArCoreApk.Availability> callback)` Asynchronously determines if ARCore is supported on this device.
`static ArCoreApk`	`getInstance()` Returns the singleton instance of ArCoreApk.
`ArCoreApk.InstallStatus`	`requestInstall(Activity applicationActivity, boolean userRequestedInstall)` Initiates installation of ARCore when needed.
`ArCoreApk.InstallStatus`	`requestInstall(Activity applicationActivity, boolean userRequestedInstall, ArCoreApk.InstallBehavior installBehavior, ArCoreApk.UserMessageType messageType)` Initiates installation of ARCore when needed, with configurable behavior.

Inherited Methods

From

class
            java.lang.Object

`Object`	`clone()`
`boolean`	`equals(Object arg0)`
`void`	`finalize()`
`final Class<?>`	`getClass()`
`int`	`hashCode()`
`final void`	`notify()`
`final void`	`notifyAll()`
`String`	`toString()`
`final void`	`wait(long arg0, int arg1)`
`final void`	`wait(long arg0)`
`final void`	`wait()`

Public Methods

public ArCoreApk.Availability checkAvailability (Context applicationContext)

checkAvailability

public ArCoreApk.Availability checkAvailability(
  Context applicationContext
)

Determines if ARCore is supported on this device. This may initiate a query with a remote service to determine if the device is compatible, in which case it will immediately return ArCoreApk.Availability.UNKNOWN_CHECKING.

For ARCore-required apps (as indicated by the manifest meta-data) this method will assume device compatibility and will always immediately return one of ArCoreApk.Availability.SUPPORTED_INSTALLED, ArCoreApk.Availability.SUPPORTED_APK_TOO_OLD, or ArCoreApk.Availability.SUPPORTED_NOT_INSTALLED.

Note: A return value of ArCoreApk.Availability.SUPPORTED_INSTALLED only indicates presence of a suitably versioned ARCore APK. Session creation may still fail if the ARCore APK has been sideloaded onto an incompatible device.

May be called prior to Session.Session(Context).

Details

Parameters

applicationContext Your application's Android context.

public void checkAvailabilityAsync (Context applicationContext, Consumer<ArCoreApk.Availability> callback)

checkAvailabilityAsync

public void checkAvailabilityAsync(
  Context applicationContext,
  Consumer<ArCoreApk.Availability> callback
)

Asynchronously determines if ARCore is supported on this device. This may initiate a query with a remote service to determine if the device is compatible.

The callback will be invoked asynchronously on the Main thread. Unlike the synchronous method checkAvailability(Context), the result will never be ArCoreApk.Availability.UNKNOWN_CHECKING.

For ARCore-required apps (as indicated by the manifest meta-data) this method will assume device compatibility and the callback will be asynchronously invoked on the Main thread with one of ArCoreApk.Availability.SUPPORTED_INSTALLED, ArCoreApk.Availability.SUPPORTED_APK_TOO_OLD, or ArCoreApk.Availability.SUPPORTED_NOT_INSTALLED.

Note: A result value of ArCoreApk.Availability.SUPPORTED_INSTALLED only indicates presence of a suitably versioned ARCore APK. Session creation may still fail if the ARCore APK has been sideloaded onto an incompatible device.

May be called prior to Session.Session(Context).

Details

Parameters

`applicationContext`	Your application's Android context.
`callback`	The callback to receive the result on the Main thread.

public static ArCoreApk getInstance ()

getInstance

public static ArCoreApk getInstance()

Returns the singleton instance of ArCoreApk.

public ArCoreApk.InstallStatus requestInstall (Activity applicationActivity, boolean userRequestedInstall)

requestInstall

public ArCoreApk.InstallStatus requestInstall(
  Activity applicationActivity,
  boolean userRequestedInstall
)

Initiates installation of ARCore when needed. When your apllication launches or enters an AR mode, it should call this method with userRequestedInstall = true.

If ARCore is installed and compatible, this function will return ArCoreApk.InstallStatus.INSTALLED.

If ARCore is not currently installed or the installed version is not compatible, the function will return ArCoreApk.InstallStatus.INSTALL_REQUESTED immediately. Your current activity will then pause while the user is offered the opportunity to install it.

When your activity resumes, you should call this method again, this time with userRequestedInstall = false. This will either return ArCoreApk.InstallStatus.INSTALLED or throw an exception indicating the reason that installation could not be completed.

ARCore-optional applications must ensure that checkAvailability(Context) returns one of the SUPPORTED_... values before calling this method.

See our sample code for an example of how an ARCore-required application should use this function.

May be called prior to Session.Session(Context).

For more control over the message displayed and ease of exiting the process, see requestInstall(Activity, boolean, InstallBehavior, UserMessageType).

Details

Parameters

`applicationActivity`	Your application's current activity. Used for launching an intent to display the installation user interface.
`userRequestedInstall`	if set, override the previous installation failure message and always show the installation interface.

Throws

`FatalException`	if an error occurs while checking compatibility or starting installation
`UnavailableDeviceNotCompatibleException`	if ARCore is not supported on this device.
`UnavailableUserDeclinedInstallationException`	if the user previously declined installation and userRequestedInstall is false.

public ArCoreApk.InstallStatus requestInstall (Activity applicationActivity, boolean userRequestedInstall, ArCoreApk.InstallBehavior installBehavior, ArCoreApk.UserMessageType messageType)

requestInstall

public ArCoreApk.InstallStatus requestInstall(
  Activity applicationActivity,
  boolean userRequestedInstall,
  ArCoreApk.InstallBehavior installBehavior,
  ArCoreApk.UserMessageType messageType
)

Initiates installation of ARCore when needed, with configurable behavior.

This is a more flexible version of requestInstall(Activity, boolean) allowing the application control over the initial informational dialog and ease of exiting or cancelling the installation.

See requestInstall(Activity, boolean) for details of use and behavior.

Details

Parameters

`applicationActivity`	Your application's current activity. Used for launching an intent to display the installation user interface.
`userRequestedInstall`	if set, override the previous installation failure message and always show the installation interface.
`installBehavior`	controls the presence of the cancel button at the user education screen and if tapping outside the education screen or install-in-progress screen causes them to dismiss.
`messageType`	controls the text of the of message displayed before showing the install prompt, or disables display of this message.

Throws

`FatalException`	if an error occurs while checking compatibility or starting installation
`UnavailableDeviceNotCompatibleException`	if ARCore is not supported on this device.
`UnavailableUserDeclinedInstallationException`	if the user previously declined installation and userRequestedInstall is false.