android读取工程里文件并显示在界面

package com.example.and_2;import java.io.BufferedReader;import java.io.FileNotFoundException;import java.io.IOException;import java.io.InputStream;import java.io.InputStreamReader;import java.io.UnsupportedEncodingException;import java.net.HttpURLConnection;import java.net.MalformedURLException;import java.net.URL;import android.app.Activity;import android.os.Bundle;import android.util.Log;import android.view.Menu;import android.view.MenuItem;import android.widget.TextView;public class MainActivity extends Activity {private  TextView  tv1;private String  result_weather="";@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);tv1=(TextView)findViewById(R.id.tv1);tv1.setText(read());}public String  read() {StringBuilder sb = new StringBuilder();String data,str;BufferedReader br;try {InputStream input = getResources().openRawResource(R.raw.invalid_weather);//BufferedReader read = new BufferedReader(new InputStreamReader(input));br = new BufferedReader(new InputStreamReader(input,"GBK"));/////UTF-8也是亂碼while ((data = br.readLine()) != null) // 判断最后一行不存在，为空结束循环{// System.out.println(data);//原样输出读到的内容sb.append(data);sb.append("\r\n");}br.close();str=sb.toString();//System.out.println(str);Log.i("str", str);return str;} catch (FileNotFoundException e) {// TODO Auto-generated catch blocke.printStackTrace();} catch (IOException e) {// TODO Auto-generated catch blocke.printStackTrace();}return "";}}

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:tools="http://schemas.android.com/tools"    android:layout_width="match_parent"    android:layout_height="match_parent"    tools:context="${relativePackage}.${activityClass}" >    <TextView        android:id="@+id/tv1"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="@string/hello_world" /></RelativeLayout>

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