content: /*
   * Copyright (C) 2009 The Android Open Source Project
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *      http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  package com.example.hellojni;
  
  import android.app.Activity;
  import android.widget.TextView;
  import android.os.Bundle;
  
  
  public class HelloJni extends Activity
  {
      /** Called when the activity is first created. */
      @Override
      public void onCreate(Bundle savedInstanceState)
      {
          super.onCreate(savedInstanceState);
  
          /* Create a TextView and set its content.
           * the text is retrieved by calling a native
           * function.
           */
          TextView  tv = new TextView(this);
          tv.setText( stringFromJNI() );
          setContentView(tv);
      }
  
      /* A native method that is implemented by the
       * 'hello-jni' native library, which is packaged
       * with this application.
       */
      public native String  stringFromJNI();
  
      /* This is another native method declaration that is *not*
       * implemented by 'hello-jni'. This is simply to show that
       * you can declare as many native methods in your Java code
       * as you want, their implementation is searched in the
       * currently loaded native libraries only the first time
       * you call them.
       *
       * Trying to call this function will result in a
       * java.lang.UnsatisfiedLinkError exception !
       */
      public native String  unimplementedStringFromJNI();
  
      /* this is used to load the 'hello-jni' library on application
       * startup. The library has already been unpacked into
       * /data/data/com.example.hellojni/lib/libhello-jni.so at
       * installation time by the package manager.
       */
      static {
          System.loadLibrary("hello-jni");
      }
  }
  