Run embedded DEX code directly from APK

On devices running Android 10 (API level 29) and higher you can tell the platform to run embedded DEX code directly from your app's APK file. This option can help prevent an attack if an attacker ever managed to tamper with the locally compiled code on the device.

If you're using the Gradle build system, to enable this feature do the following:

• Set the android::useEmbeddedDex attribute to true in the <application> element of your app's manifest file.

• Set useLegacyPackaging to false in the module-level build.gradle.kts file (build.gradle file if you're using Groovy).

  Kotlin

    packagingOptions {
      dex {
        useLegacyPackaging = false
      }
    }
    

  Groovy

    packagingOptions {
      dex {
        useLegacyPackaging false
      }
    }
    

If you're using the Bazel build system, to enable this feature set the android:useEmbeddedDex attribute to true in the <application> element of your app's manifest file and leave DEX files uncompressed:

android_binary(
   ...
   nocompress_extensions = [".dex"],
)