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The JavaScriptEngine demo app serves as both a practical demonstration how to use the latest AndroidX Webkit APIs and as a means to exercise those APIs for manual testing.
cd frameworks/support/ # Optional: you can use Android Studio as your editor ./studiow # Build the app ./gradlew :javascriptengine:integration-tests:testapp:assembleDebug # Install the app ./gradlew :javascriptengine:integration-tests:testapp:installDebug # Check for Lint warnings ./gradlew :javascriptengine:integration-tests:testapp:lintDebug # Optional: launch the app via adb adb shell am start -n com.example.androidx.javascriptengine/.MainActivity