[Android plugin] How to call lua function from Java or C

Comments

• ar2rsawseen Maintainer

  October 2012 edited October 2012 Accepted Answer

  Well theoretically it's something like:

  //get lua function lua_getglobal(L, "name_of_lua_function"); //pass parameters to function if any lua_pushstring(s); lua_pushstring(s); //call lua function //do the call (2 arguments, 1 result) lua_pcall(L, 2, 1, 0); //get result of function if any z = lua_tonumber(L, -1); //pop the returned result lua_pop(L, 1);

  http://appcodingeasy.com/Gideros-Mobile

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• Rickyngk Member

  October 2012

  In Java, I need to send a phone event to gideros. But, I did not have "L" at this time. How can I get it?

  http://www.guava7.com/

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• fxone Member

  October 2012

  @Rickyngk I found sth like wrapper from JAVA to Lua. And as I see "CommonDataKinds_Phone" object is wrapped:
  http://code.google.com/p/wrapandroid-for-multilanguage/
  But it's for plain lua, unfortunately not for Gideros compiled lua files, I think.

  http://www.mynameisoriginality.com
  https://play.google.com/store/apps/developer?id=My+name+is+Originality
  
  

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• ar2rsawseen Maintainer

  October 2012

  So about Java part, I think you need to define the existence of native method in java, and then define this method in C.
  Here's an easy example how to do that:
  http://stuf.ro/calling-c-code-from-java-using-jni/
  
  And about calling lua event, then you can check an example from GoogleBilling Android plugin
  File:
  googlebillingbinder.cpp
  Line: 164 void dispatchEvent(int type, void *event)
  
  this method gets dispatch event object, creates new event object, dispatches event with values and handles response.

  http://appcodingeasy.com/Gideros-Mobile

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• Rickyngk Member

  October 2012 edited October 2012

  I'm digging google billing plug-in. However, if someone has a simpler example, please support me!
  
  Thank you in advance!

  http://www.guava7.com/

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• Rickyngk Member

  October 2012

  Done, I've coded an init function in C, which called by Lua, for saving lua_state L once. After that, use the same way as @ar2rsawseen suggestion

  http://www.guava7.com/

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