在main.xml中
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<TextView
android:id="@+id/msg"
android:layout_margin="8dp"
android:layout_width="fill_parent"
android:layout_height="wrap_content"/>
</LinearLayout>
在MyFileOperateDemo.java程序中
package com.li.fileoperate;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.PrintStream;
import java.util.Scanner;
import android.app.Activity;
import android.os.Bundle;
import android.widget.TextView;
public class MyFileOperateDemo extends Activity {
private static final String FILENAME = "liyewn.txt"; //设置文件的名称
private TextView msg = null; //文本组件
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
super.setContentView(R.layout.main);
this.msg = (TextView)super.findViewById(R.id.msg);
FileInputStream input = null;
try {
input = super.openFileInput(FILENAME); //取得输入流
} catch (FileNotFoundException e) {
e.printStackTrace();
}
Scanner scan = new Scanner(input);
while(scan.hasNext()){
this.msg.append(scan.next() + "\n");
}
scan.close(); //关闭流
}
}