MyApplication.java

import android.app.Application;
import android.content.Context;
import android.util.Log;

import com.strongloop.android.loopback.RestAdapter;

public class MyApplication extends Application {
    public static RestAdapter adapter=null;
    public static Context context=null;

    @Override
    public void onCreate(){
        super.onCreate();

        // Initialise application contexte
        context=getApplicationContext();

        // Initialise rest adapter
        if (adapter == null){
            adapter = new RestAdapter(context,"http://0.0.0.0:3000/api");
        }
    }
    public static RestAdapter getLoopbackAdapter(){
        return adapter;
    }

}