Effective in 2026, to align with our trunk stable development model and ensure platform stability for the ecosystem, we will publish source code to AOSP in Q2 and Q4. For building and contributing to AOSP, we recommend utilizing android-latest-release instead of aosp-main. The android-latest-release manifest branch will always reference the most recent release pushed to AOSP. For more information, see Changes to AOSP.

DexMetadataExtractor

public class DexMetadataExtractor
extends BaseTargetPreparer

java.lang.Object
↳	com.android.tradefed.targetprep.BaseTargetPreparer
	↳	com.android.tradefed.targetprep.DexMetadataExtractor

Installs Dex Metadata files for specified APKs.

Summary

Fields
`protected List<File>`	`mDoInstallMultipleApks`

Public constructors
`DexMetadataExtractor()` Constructor for DexMetadataExtractor.
`DexMetadataExtractor(IRunUtil runUtil)`

Public methods
`ITestDevice`	`getDevice()` Returns the device that the preparer should apply to.
`void`	`setAaptVersion(AaptParser.AaptVersion aaptVersion)` Sets the version of AAPT for APK parsing.
`void`	`setUp(TestInformation testInfo)` Extracts Dex Metadata files from the provided APKs using profgen and installs them alongside the APKs.
`void`	`setUserId(int userId)` If the apk should be installed for a particular user, sets the id of the user to install for.
`void`	`tearDown(TestInformation testInfo, Throwable e)`

Protected methods
`File`	`getLocalPathForFilename(TestInformation testInfo, String apkFileName)`
`String`	`parsePackageName(File testAppFile)` Get the package name from the test app.
`File`	`resolveApkFile(TestInformation testInfo, File apkFile)` Helper to resolve an apk to its File.

Fields

mDoInstallMultipleApks

protected List<File> mDoInstallMultipleApks

Public constructors

DexMetadataExtractor

public DexMetadataExtractor ()

Constructor for DexMetadataExtractor.

DexMetadataExtractor

public DexMetadataExtractor (IRunUtil runUtil)

Parameters
`runUtil`	`IRunUtil`

Public methods

getDevice

public ITestDevice getDevice ()

Returns the device that the preparer should apply to.

Returns
`ITestDevice`

Throws
	com.android.tradefed.targetprep.TargetSetupError
`TargetSetupError`

setAaptVersion

public void setAaptVersion (AaptParser.AaptVersion aaptVersion)

Sets the version of AAPT for APK parsing.

Parameters
`aaptVersion`	`AaptParser.AaptVersion`

setUp

public void setUp (TestInformation testInfo)

Extracts Dex Metadata files from the provided APKs using profgen and installs them alongside the APKs.

Parameters
`testInfo`	`TestInformation`

Throws
	BuildError, DeviceNotAvailableException
`BuildError`
`DeviceNotAvailableException`
`TargetSetupError`

setUserId

public void setUserId (int userId)

If the apk should be installed for a particular user, sets the id of the user to install for.

Parameters
`userId`	`int`

tearDown

public void tearDown (TestInformation testInfo, 
                Throwable e)

Parameters
`testInfo`	`TestInformation`
`e`	`Throwable`

Throws
`DeviceNotAvailableException`

Protected methods

getLocalPathForFilename

protected File getLocalPathForFilename (TestInformation testInfo, 
                String apkFileName)

Parameters
`testInfo`	`TestInformation`
`apkFileName`	`String`

Returns
`File`

Throws
`TargetSetupError`

parsePackageName

protected String parsePackageName (File testAppFile)

Get the package name from the test app.

Parameters
`testAppFile`	`File`

Returns
`String`

Throws
`TargetSetupError`

resolveApkFile

protected File resolveApkFile (TestInformation testInfo, 
                File apkFile)

Helper to resolve an apk to its File.

Parameters
`testInfo`	`TestInformation`
`apkFile`	`File`

Returns
`File`

Throws
`DeviceNotAvailableException`
`TargetSetupError`