Android 讀取assets文件下的txt文件

android 讀取assets文件下的txt文件，解決了讀取txt文件的亂碼問題；

package com.example.com.scrollview;

import java.io.BufferedInputStream;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import android.app.Activity;
import android.content.res.AssetManager;
import android.os.Bundle;
import android.util.Log;
import android.widget.TextView;
public class MainActivity extends Activity {
private TextView novel;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
novel = (TextView) findViewById(R.id.novel);
AssetManager am=getAssets();
try {
InputStream is=am.open("zx.txt");
String code=getCode(is);
is=am.open("zx.txt");
BufferedReader br=new BufferedReader(new InputStreamReader(is,code));
String line=br.readLine();
int i=0;
while(line!=null){
novel.append(line+"\n");
line=br.readLine();
i++;
if(i==200){
break;
}
}
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
// novel.setText(readNovel());
}
public String getCode(InputStream is){
try {
BufferedInputStream bin = new BufferedInputStream(is);

   int p;
p = (bin.read() << 8) + bin.read();
String code = null;
switch (p) {

       case 0xefbb:

           code = "UTF-8";

           break;

       case 0xfffe:

           code = "Unicode";

           break;

       case 0xfeff:

           code = "UTF-16BE";

           break;

       default:

           code = "GBK";

   } 
   is.close();
   return code;
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}

return null; 
}
}</pre>