1 /*
2  * Copyright (C) 2009 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 package com.example.twolibs;
17 
18 import android.app.Activity;
19 import android.widget.TextView;
20 import android.os.Bundle;
21 
22 public class TwoLibs extends Activity
23 {
24     /** Called when the activity is first created. */
25     @Override
onCreate(Bundle savedInstanceState)26     public void onCreate(Bundle savedInstanceState)
27     {
28         super.onCreate(savedInstanceState);
29 
30         TextView  tv = new TextView(this);
31         int       x  = 1000;
32         int       y  = 42;
33 
34         // here, we dynamically load the library at runtime
35         // before calling the native method.
36         //
37         System.loadLibrary("twolib-second");
38 
39         int  z = add(x, y);
40 
41         tv.setText( "The sum of " + x + " and " + y + " is " + z );
42         setContentView(tv);
43     }
44 
add(int x, int y)45     public native int add(int  x, int  y);
46 }
47