使用Box2d libgdx for android的UnsatisfiedLinkError

Question

I am trying to use the libGDX box2d wrapper, but I do not want to use the the full libGDX game engine, because I already have my game implemented and now I want to add some physics.

So, I downloaded the libGDX libraries and put them in build path.

I see the following error:

UnsatisfiedLinkError at com.badlogic.gdx.physics.box2d.World.newWorld(Native Method)
at com.badlogic.gdx.physics.box2d.World.<init>(World.java:101)
at org.anddev.andengine.extension.physics.box2d.PhysicsWorld.<init>(PhysicsWorld.java:61)
at org.anddev.andengine.extension.physics.box2d.PhysicsWorld.<init>(PhysicsWorld.java:57)

What can I do?

Answer 1

I use this code from google discussion and it's working fine at my side.

import com.badlogic.gdx.utils.GdxNativesLoader;
GdxNativesLoader.load(); 

Use this before you do anything. make sure you have gdx.jar and gdx-natives.jar in your project.

Answer 2

如果在World属性声明期间分配实例，保留空声明并在App create（）方法上分配新实例应该修复它，则会发生此错误。