学步园

这是如何从Android工程的res/raw目录下读取文件内容的例子。

1. ReadFile.java

public class ReadFile extends Activity implements View.OnClickListener {</p> <p> private static final String TAG = "ReadFileActivity";</p> <p> /** Called when the activity is first created. */<br /> @Override<br /> public void onCreate(Bundle icicle) {<br /> super.onCreate(icicle);<br /> setContentView(R.layout.main);</p> <p> Button readButton = (Button) findViewById(R.id.button1);<br /> readButton.setOnClickListener(this);</p> <p> Button clearButton = (Button) findViewById(R.id.clearbutton);<br /> clearButton.setOnClickListener(new View.OnClickListener() {<br /> public void onClick(View v) {<br /> TextView textArea = (TextView) findViewById(R.id.filecontent);<br /> textArea.setText("");<br /> }<br /> });<br /> }</p> <p> public void onClick(View arg0) {<br /> doReadFromFile(this);<br /> }</p> <p> private void doReadFromFile(Context context) {<br /> InputStream istream = null;<br /> BufferedReader br = null;<br /> String fileContent = "", line="";</p> <p> try {<br /> istream = (InputStream) context.getResources().openRawResource(R.raw.mytext);<br /> br = new BufferedReader(new InputStreamReader(istream));</p> <p> while ( (line = br.readLine()) != null) {<br /> fileContent += line + "/n";<br /> }</p> <p> br.close();<br /> istream.close();<br /> } catch (Exception e){<br /> Log.e(TAG, "Found exception when reading file: " + e);<br /> }<br /> Log.i(TAG, "file content = " + fileContent );</p> <p> TextView showContent = (TextView) findViewById(R.id.filecontent);<br /> showContent.setText(fileContent);<br /> }</p> <p>}

2. Android 工程 res/raw目录下的文件 mytext

hello
1
2
3

3. 运行结果