Java REPL on Android with BeanShell.

Useful for quickly checking some framework API behavior, or calling Java APIs with the permissions of ADB shell.

This is not an officially supported Google product.

Get the APK

Preview

Built-ins

The application Context is available via the context variable in the global namespace.

An Activity instance is also available as activity when running with UI, and references to it in the global namespace will be cleared upon rotation to avoid memory leaks.

A system Context instance is also available as systemContext when running in ADB shell.

Other BeanShell built-ins are also available, though not guaranteed to work, e.g. Swing-based UI built-ins won't work on Android.

Running in ADB shell

Execute the following command in adb shell:

pm_path=`pm path me.zhanghai.android.beeshell` && apk_path=${pm_path#package:} && `dirname $apk_path`/lib/*/libbsh.so

Limitation

BeanShell was written for running on a desktop JVM instead of Android, and as a result class-related Java syntax may be unsupported in this app. Specifically, you cannot define new classes except for anonymous inner classes implementing an existing interface.

License

Copyright 2020 Google LLC

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    https://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.