.import android.app.Activity; 
04.import android.os.Bundle; 
05.import android.view.View; 
06.import android.widget.EditText; 
07.import android.widget.TextView; 
08.import android.widget.Toast; 
09. 
10.public class WordCountNDKTestMain extends Activity 
11.{ 
12.    private TextView tvWordCount; 
13.    private EditText etString; 
14. 
15.    @Override 
16.    public void onCreate(Bundle savedInstanceState) 
17.    { 
18.        super.onCreate(savedInstanceState); 
19.        setContentView(R.layout.main); 
20.        tvWordCount = (TextView) findViewById(R.id.textview_wordcount); 
21.        etString = (EditText) findViewById(R.id.edittext_string); 
22.    } 
23.    //  “从/dev/wordcount读取单词数”按钮的执行代码  
24.    public void onClick_ReadWordCountFromDev(View view) 
25.    { 
26.        //  显示单词数  
27.        tvWordCount.setText("单词数：" + String.valueOf(readWordCountFromDev())); 
28.    } 
29.// “向/dev/wordcount写入字符串”按钮的执行代码  
30.    public void onClick_WriteStringToDev(View view) 
31.    { 
32.        //  向/dev/wordcount设备文件写入字符串  
33.        writeStringToDev(etString.getText().toString()); 
34.        Toast.makeText(this, "已向/dev/wordcount写入字符串", Toast.LENGTH_LONG).show(); 
35.    } 
36. 
37.    // native方法  
38.    public native int readWordCountFromDev(); 
39.    public native void writeStringToDev(String str); 
40.    static 
41.    { 
42.        System.loadLibrary("ndk_test_word_count"); 
43.    } 
44.} 
package mobile.android.word.count.ndk;

import android.app.Activity;毕业论文 
import android.os.Bundle;
import android.view.View;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;

public class WordCountNDKTestMain extends Activity
{
    private TextView tvWordCount;
    private EditText etString;

    @Override
 &nbs

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