Fast Downward for Android

This is a port of the Fast Downward PDDL Planner for Android.

This project implements the interface provided by the library com.softbankrobotics.pddl:pddl-planning.

Usage

This planner can be used as a library, or as an Android service, in a stand-alone app. In both cases you will need to use the interface library com.softbankrobotics.pddl:pddl-planning.

It is available on Maven Central, but not in JCenter. The build.gradle at the root of your project should mention:

allprojects {
    repositories {
        mavenCentral()
    }
}

And your module's dependency should include:

implementation 'com.softbankrobotics.pddl:pddl-planning:1.4.1'

Usage as a library

Add it to your module's dependencies:

implementation 'com.softbankrobotics.pddl:fast-downward-android:2.2.0'

Use setupFastDownwardPlanner to get a PlanSearchFunction, that can be used along with the utilities provided by com.softbankrobotics:pddl-planning.

Example:

val searchPlan: PlanSearchFunction = setupFastDownwardPlanner(context)
// [...]
searchPlan(domain, problem)

Usage as a stand-alone service

To use it as a stand-alone Android service application:

• build the app module, and install it on the device. It will show up under the settings, in the applications section, but not in the main launcher app, because it has no main activity.
• use createPlanSearchFunctionFromService with the right Intent to target this app's service to get a PlanSearchFunction:

  val intent = Intent(ACTION_SEARCH_PLANS_FROM_PDDL)
  intent.`package` = "com.softbankrobotics.fastdownward"
  val searchPlan: PlanSearchFunction = createPlanSearchFunctionFromService(context, intent)
  // [...]
  searchPlan(domain, problem)

Building

This project has submodules. After cloning it, do not forget to run:

git submodule update --init

This is a standard Android Studio project, but it includes C++ dependencies and might take long to build.

License

This project is distributed under the GPLv3 license.

Derivative logo was authorized for this project, please contact Fast Downward for reuse.