本代码是读取DDMS 下 Data-Data-Files-的txt文件
/*
*java 代码
*/
package ifeng.FileRW; //这些包要切换成你自己的哦
import java.io.BufferedReader;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.Properties;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.widget.TextView;
import android.widget.Toast;
public class FileRW extends Activity {
/** Called when the activity is first created. */
private TextView text = null;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
text = (TextView)findViewById(R.id.t1);
char[] inputBuffer = new char[8000]; //这个视你们文本的大小决定
String data = null;
try{
//得到文件流对象
FileInputStream myFileStream = openFileInput("1.txt");
//得到读取器的对象，限制编码为GB2312
InputStreamReader reader = new InputStreamReader(myFileStream,"gb2312");
//将读取的流读进bufferedreader中
BufferedReader myReader = new BufferedReader(reader);
//再将bufferedreader读进inputbuffer里面，一个char型数组
myReader.read(inputBuffer);
//再将数据读进一个string类型的data里面
data = new String(inputBuffer);
data = data.replace("\r\n","\n"); //解决换行符变成空格的关键
//将数据用textview显示出来。
text.setText(data);
Toast.makeText(FileRW.this, "读取文件成功",Toast.LENGTH_SHORT).show();
}
catch (Exception e) {
e.printStackTrace();
Toast.makeText(FileRW.this, "读取文件失败",Toast.LENGTH_SHORT).show();
}
}
}
/*
*main.xml 代码
*/
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<TextView
android:id="@+id/t1"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="@string/hello"
/>
</LinearLayout>
新手 不对的地方请指出~