Defining Custom Message Types for Rosjava Android

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After you have correctly made your .msg files in your package, you will need to rebuild at least rosjava with ./gradle as shown in the documentation.

This will automatically include your custom message in the javalibrary, rosjava_messages-0.0.0-SNAPSHOT.jar, which will need to be included into your Java project.

Be careful as if you include a java library file directly in your /libs folder of your project it will conflict with other copies of that file, such as can be the case if the gingerbread_mr2 library is also referenced. If you are developing in java to use android core, then I suggest that you should also rebuild android_core as per the documentation, and just reference the gingerbread_mr2 project as a library in the project_properties->android_settings tab (if using eclipse)

You can them import them into your code like any other message. Just use:

import my_msg_pkg.msg

replacing "my_msg_pkg" with the package your message is defined in and "msg" as your message type.