1 /*
2  * Copyright (C) 2008 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 
17 package com.example.android.simplejni;
18 
19 import android.app.Activity;
20 import android.os.Bundle;
21 import android.widget.TextView;
22 
23 public class SimpleJNI extends Activity {
24     /** Called when the activity is first created. */
25     @Override
onCreate(Bundle savedInstanceState)26     public void onCreate(Bundle savedInstanceState) {
27         super.onCreate(savedInstanceState);
28         TextView tv = new TextView(this);
29         int sum = Native.add(2, 3);
30         tv.setText("2 + 3 = " + Integer.toString(sum));
31         setContentView(tv);
32     }
33 }
34 
35 class Native {
36     static {
37     	// The runtime will add "lib" on the front and ".o" on the end of
38     	// the name supplied to loadLibrary.
39         System.loadLibrary("simplejni");
40     }
41 
add(int a, int b)42     static native int add(int a, int b);
43 }
44