在Android的访问资源文件

在Android的访问资源文件

本文介绍了在Android的访问资源文件的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

问题描述

我在我的/ RES /生/文件夹(/res/raw/textfile.txt),而我试图从我处理的android应用程序读取一个资源文件。

 公共静态无效的主要(字串[] args){

    档案文件=新的文件(RES /生/ TextFile.txt的);

    的FileInputStream FIS = NULL;
    的BufferedInputStream双= NULL;
    DIS的DataInputStream = NULL;

    尝试 {
      FIS =新的FileInputStream(文件);
      双=新的BufferedInputStream(FIS);
      DIS =新的DataInputStream(之二);

      而(dis.available()!= 0){
              //做一些与文件
          Log.d(GAME,dis.readLine());
      }

      fis.close();
      bis.close();
      透露();

    }赶上(FileNotFoundException异常E){
      e.printStackTrace();
    }赶上(IOException异常E){
      e.printStackTrace();
    }
  }
 

我已经尝试了不同的路径语法,但总是得到的 java.io.FileNotFoundException 错误。如何访问/res/raw/textfile.txt进行处理?为文件文件=新的文件(RES /生/ TextFile.txt的); 在Android的错误的方法


的*回答: *

  //调用LoadText方法,并传递给它RESOURCEID
LoadText(R.raw.textfile);

公共无效LoadText(INT RESOURCEID){
    //的InputStream打开RESOURCEID并将其发送至缓冲器
    InputStream的是= this.getResources()openRawResource(RESOURCEID)。
    的BufferedReader BR =新的BufferedReader(新InputStreamReader的(是));
    字符串的readLine = NULL;

    尝试 {
        //虽然BufferedReader类的readLine不为空
        而((的readLine = br.readLine())!= NULL){
        Log.d(TEXT,的readLine);
    }

    //关闭InputStream和BufferedReader
    is.close();
    br.close();

    }赶上(IOException异常E){
        e.printStackTrace();
    }
}
 

解决方案

如果你在一个文件中 RES /生/ TextFile.txt的从活动/控件调用:

getResources()。openRawResource(...)返回的InputStream

该点实际上应该是在R.raw发现一个整数...对应的文件名,可能是 R.raw.textfile (通常是该文件的名称不带扩展名)

新的BufferedInputStream(getResources()openRawResource(...)); 再读取该文件作为给用户的内容

I have a resource file in my /res/raw/ folder (/res/raw/textfile.txt) which I am trying to read from my android app for processing.

public static void main(String[] args) {

    File file = new File("res/raw/textfile.txt");

    FileInputStream fis = null;
    BufferedInputStream bis = null;
    DataInputStream dis = null;

    try {
      fis = new FileInputStream(file);
      bis = new BufferedInputStream(fis);
      dis = new DataInputStream(bis);

      while (dis.available() != 0) {
              // Do something with file
          Log.d("GAME", dis.readLine());
      }

      fis.close();
      bis.close();
      dis.close();

    } catch (FileNotFoundException e) {
      e.printStackTrace();
    } catch (IOException e) {
      e.printStackTrace();
    }
  }

I have tried different path syntax but always get a java.io.FileNotFoundException error. How can I access /res/raw/textfile.txt for processing? Is File file = new File("res/raw/textfile.txt"); the wrong method in Android?


* Answer: *

// Call the LoadText method and pass it the resourceId
LoadText(R.raw.textfile);

public void LoadText(int resourceId) {
    // The InputStream opens the resourceId and sends it to the buffer
    InputStream is = this.getResources().openRawResource(resourceId);
    BufferedReader br = new BufferedReader(new InputStreamReader(is));
    String readLine = null;

    try {
        // While the BufferedReader readLine is not null
        while ((readLine = br.readLine()) != null) {
        Log.d("TEXT", readLine);
    }

    // Close the InputStream and BufferedReader
    is.close();
    br.close();

    } catch (IOException e) {
        e.printStackTrace();
    }
}
解决方案

If you have a file in res/raw/textfile.txt from your Activity/Widget call:

getResources().openRawResource(...) returns an InputStream

The dots should actually be an integer found in R.raw... corresponding to your filename, possibly R.raw.textfile (it's usually the name of the file without extension)

new BufferedInputStream(getResources().openRawResource(...)); then read the content of the file as a stream

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09-02 14:38