Read text file as resource

Question

I am trying to read a file "words.txt" from a resource. It is a very simple, but large (2 MB), text file that I want to read line by line. I have put the file into /res/raw/words.txt, and try to open it with the following code:

 try { BufferedReader in = new BufferedReader( new InputStreamReader(getResources().openRawResource(R.raw.words))); String line=in.readLine(); T.append(line); T.append("\n"); in.close(); } catch (Exception e) { T.append(e.toString()); }

However, I get a java.io.IOException. This is not a "resource not found" exception, so the resource is opened correctly, but the readLine() produces the error.

I tried using the InputStream itself, with the result that read() produces -1, which stands for EOF, as if the file was empty.

Any help for me?

Till now I am still splitting up long files. So this is the best answer I can give. Anyone a better idea?

Sameer Segal · Accepted Answer · 2010-09-14 09:09:00Z

4

Try this:

InputStream is = c.getResources().openRawResource(R.raw.csv_file); BufferedReader br = new BufferedReader(new InputStreamReader(is)); String readLine = null; try { while ((readLine = br.readLine()) != null) { } } catch (IOException e) { e.printStackTrace(); }

answered Sep 14, 2010 at 9:09

Sameer Segal

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5 Comments

Rene Over a year ago

No, does not work. I would be surprised anyway, since the resource is found and opened correctly. Only, that the system pretends it is empty.

Rene Over a year ago

But I found the reason. I shortened the file, and suddenly, it was working. Now I have to find out, if that is a restriction of Android, a restriction or setting of Eclipse, or a problem with the file itself.

Rene Over a year ago

I have split the file in 3 and everything works now. Why? I do not know yet.

Sameer Segal Over a year ago

You might want to download the file to the SD Card and read it (through the same code)

hakim Over a year ago

@Rene yup BufferedReader limit the buffer size only for 8192 characters, so when the buffer is full it is flushed/error and no data loaded.

rb512 · Accepted Answer · 2014-01-25 00:08:04Z

//declare these outside of your load function

public String teststring; public int loadcounter;

//i put this code in a gl surface load function

//load function //note c changed to context for worky

 InputStream is = context.getResources().openRawResource(R.raw.ship1); BufferedReader br = new BufferedReader(new InputStreamReader(is)); String readLine = null; try { while ((readLine = br.readLine()) != null) { if(loadcounter ==0) { teststring=br.readLine();//get first line to printable string //this code works //array[loadcounter] = br.readLine(); //want to get this remarked part working for level load } loadcounter++; //var will increment an array } } catch (IOException e) { e.printStackTrace(); //create exception output }

//I used a file ship1.txt. you need to create a raw folder in your resource folder and then //create a ship1.txt in there. //this code finally solved my simple text load issues

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