title: Android Plugin for Unity giving errors
body: <p>i was doing a test application to learn how we cam use java code in unity through Plugin.</p>
  
  <p>I created a simple Android Activity class using Android 3.2 in eclipse.</p>
  
  <pre><code>package com.control.unitycontrol;
  import com.unity3d.player.UnityPlayerActivity;
  import android.os.Bundle;
  import android.util.Log;
  import android.widget.Toast;
  public class MainActivity extends UnityPlayerActivity  {
      @Override
      public void onCreate(Bundle savedInstanceState) {
          super.onCreate(savedInstanceState);
          Log.d("TEST","Foo method is called is called 1111");
  
  
      }
  
      public static void foo(){
  
          Log.d("TEST","Foo method is called is called 2222");  // this method is never called
  
  
  
      }}
  </code></pre>
  
  <p>Here is my AndroidManifest.xml</p>
  
  <pre><code>&lt;manifest xmlns:android="http://schemas.android.com/apk/res/android"
      package="com.control.unitycontrol"
      android:versionCode="1"
      android:versionName="1.0" &gt;
  
      &lt;uses-sdk
          android:minSdkVersion="8"
          android:targetSdkVersion="15" /&gt;
  
      &lt;application
          android:icon="@drawable/ic_launcher"
          android:label="@string/app_name"
          android:theme="@style/AppTheme" &gt;
          &lt;activity
              android:name=".MainActivity"
              android:label="@string/title_activity_main"
               android:configChanges="fontScale|keyboard|keyboardHidden|locale|mnc|mcc|navigation|orientation|screenLayout|screenSize|smallestScreenSize|uiMode|touchscreen"&gt;
              &lt;intent-filter&gt;
                  &lt;action android:name="android.intent.action.MAIN" /&gt;
  
                  &lt;category android:name="android.intent.category.LAUNCHER" /&gt;
              &lt;/intent-filter&gt;
          &lt;/activity&gt;
      &lt;/application&gt;
  
  &lt;/manifest&gt;
  </code></pre>
  
  <p>According to the tutorial I copied classes.jar to my libs folder then added it to my classpath..</p>
  
  <p>then I made my project "Is Library ".</p>
  
  <p>Finally I added my unitycontrol.jar to Assests->Plugins->Android folder along with the AndroidManifest.xml.</p>
  
  <p>To Access my code in C# script I wrote.</p>
  
  <pre><code>using (AndroidJavaClass cls_UnityPlayer = new AndroidJavaClass("com.unity3d.player.UnityPlayer")) 
  
  
          {
  
              using (AndroidJavaObject obj_Activity = cls_UnityPlayer.GetStatic&lt;AndroidJavaObject&gt;("currentActivity")) 
  
          {
  
                  obj_Activity .CallStatic("foo");
  
          }
  
      }
  </code></pre>
  
  <p>When i play my scene I get error saying:</p>
  
  <p><em><strong>JNI: Unable to find field id for 'currentActivity' (static)
  UnityEngine.AndroidJavaObject:GetStatic(String)</em></strong></p>
  
  <p>If I try to build it I get error saying :</p>
  
  <p>*<strong>Failed to re-package resources with the following parameters:
  package -v -f -m -J gen -M AndroidManifest.xml -S "res" -I "C:/Users/sumit/Documents/android-sdk-windows/platforms/android-16\android.jar" -F bin/resources.ap_
  Configurations:*</strong></p>
  
  <p>Any Help ...!!! What can I do resolve this Issue</p>