Question

I have a text file stored in sdcard.I want to copy the data from text file in sdcard into a string array.I want to store data in string array and then later use that data in my autocompletetextview.My code is:

package com.example.pro2;

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.Bundle;
import android.os.Environment;
import android.app.Activity;
import android.util.Log;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;

public class MainActivity extends Activity {

    @Override
    public void onCreate(Bundle savedInstanceState) 
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        Button b1=(Button)findViewById(R.id.button1);
        b1.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {
                // TODO Auto-generated method stub
                ReadSettings();

            }
        });
    }
    public void ReadSettings(){

        try{             
            File sdcard = Environment.getExternalStorageDirectory();
            File file = new File(sdcard,"comm.txt");        
               FileInputStream fileIS = new FileInputStream(file);          
               BufferedReader buf = new BufferedReader(new InputStreamReader(fileIS));           
               String readString = new String();                


               String val[] = null;
               for(int i=0;i<5;i++)
               {
               while ((readString = buf.readLine()) != null) {
                   Log.d("line: ", readString);   
                   val[i] = readString;
                   Log.d("values", val[i]);
                   // u better use an ArrayList or you have to check if i < val.size
               }
               }

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

But it is showing force close.Plz help.

Answer 1

Not possibly an answer, please change here:

ArrayList<String> val = new ArrayList();
               int i=0;

               while ((readString = buf.readLine()) != null) {
                   Log.d("line: ", readString);   
                   val.add(readString);
                   Log.d("values", val.get(i).toString());
　　　　　　　　　　　i++;
                   // u better use an ArrayList or you have to check if i < val.size