read a .txt file from sd card in a real device

noya · by **noya** » Fri Jun 12, 2009 4:10 pm

I use this code to access a file on the sdcard in the real device:

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import java.io.BufferedReader;
 
import java.io.File;
 
import java.io.FileInputStream;
 
import java.io.FileNotFoundException;
 
import java.io.IOException;
 
import java.io.InputStreamReader;
 
import android.os.Environment;
 
import android.util.Log;
 
Parsed in 0.032 seconds,  using GeSHi 1.0.8.4

i read a file named "filename.txt" put in the root of the sdcard (I pushed the file using Eclipse in the "sdcard" directory on the phone)

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try{
 
   File f = new File(Environment.getExternalStorageDirectory()+"/filename.txt");
 
   fileIS = new FileInputStream(f);
 
   BufferedReader buf = new BufferedReader(new InputStreamReader(fileIS));
 
   String readString = new String(); 
 
   //just reading each line and pass it on the debugger
 
   while((readString = buf.readLine())!= null){
 
      Log.d("line: ", readString);
 
   }
 
} catch (FileNotFoundException e) {
 
   e.printStackTrace();
 
} catch (IOException e){
 
   e.printStackTrace();
 
}
 
Parsed in 0.033 seconds,  using GeSHi 1.0.8.4

Angie · by **Angie** » Sat Oct 17, 2009 11:31 pm

Thanks a lot, was looking for this!

spring · by **spring** » Sat Jan 09, 2010 12:03 pm

good!

GameQ · by **GameQ** » Tue Feb 09, 2010 5:40 pm

You'd be surprised at how long I was searching for just this kind of information. Thanks!

rayhaque · by **rayhaque** » Tue Nov 02, 2010 9:59 pm

I have been looking for a code snippet like this also! I believe there is a typo though ...

Shouldn't line 5 in the second block look like this?

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FileInputStream fileIS = new FileInputStream(f);
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raultm · by **raultm** » Tue Jan 04, 2011 2:51 pm

Thanks. It is helpful.

eugenevdm · by **eugenevdm** » Sun Mar 27, 2011 11:04 am

rayhaque wrote:...Shouldn't line 5 in the second block look like this?...

Yes it should. The author did not add that little bit of essential code.

Mike.Adams · by **Mike.Adams** » Wed Apr 06, 2011 5:01 pm

thanks for that piece of code

igor · by **igor** » Mon Nov 05, 2012 10:54 am

thanks, it's Working
but its not working when the to the computer or outher device.
How can I make it work when i additing the file from the usb?

read a .txt file from sd card in a real device

read a .txt file from sd card in a real device

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