ListView: Não está lendo o Arquivo Texto

Mobile
#1

Códigos.

MyActivity.java

package br.com.android;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;

import br.com.android.R;
 
import android.app.AlertDialog;
import android.app.ListActivity;
import android.app.ProgressDialog;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import java.util.ArrayList;
import java.util.List;

import android.widget.ArrayAdapter;
import android.widget.LinearLayout;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;
import android.widget.AdapterView.OnItemClickListener;

import android.os.Environment;
import android.app.Activity;
import android.content.Context;

public class MyActivity extends Activity {
    ListView myListView;
    ArrayList<Itens> Acs;
    
    public ProgressDialog dialog;
    public String Ac_id;
    
    private TextView txtNomeArq;
    private TextView txtLer;
    
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.acs);       
        Acs = new ArrayList<Itens>();       
        setItList();
        
        txtNomeArq = (TextView) findViewById(R.id.edtNomeArq);
        txtLer = (TextView) findViewById(R.id.edtLer);
        myListView = (ListView) findViewById(R.id.acs_list);
        myListView.setFastScrollEnabled(true);
        final MyIndexerAdapter<String> adapter = new MyIndexerAdapter<String>(
                getApplicationContext(), R.layout.acs_row,
                Acs);
        myListView.setAdapter(adapter);
        
        myListView.setOnItemClickListener(new OnItemClickListener() {
            public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,
                    long l) {   
                
                Itens msg = Acs.get((int)l);

                AlertDialog LDialog = new AlertDialog.Builder(MyActivity.this).setTitle("Detalhes") 
                .setMessage(msg.getD()) .setPositiveButton("ok", null).create(); 
                LDialog.show(); 
                                adapter.notifyDataSetChanged();
                
                                
            };
        });
        
    }
    
    public void click_Ler(View v)
    {
        setItList();
    }

    public void click_Limpar(View v)
    {
        txtNomeArq.setText("NomedoArq.txt");
        txtLer.setText("");
    }

    // the list adapter, where the magic happens
    class MyIndexerAdapter<T> extends ArrayAdapter<Itens> {

        int textViewResourceId;

        public MyIndexerAdapter(Context context, int textViewResourceId,
                List<Itens> objects) {
            super(context, textViewResourceId, objects);
            this.textViewResourceId = textViewResourceId;

        }

        @Override
        public View getView(int position, View convertView, ViewGroup parent) {
                        
            LinearLayout rowView;
            Itens msg = getItem(position);
            if (convertView == null) {
                rowView = new LinearLayout(getContext());
                LayoutInflater vi = (LayoutInflater) getContext()
                        .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
                vi.inflate(textViewResourceId, rowView, true);
            } else {
                rowView = (LinearLayout) convertView;
            }
                        
            TextView t = (TextView) rowView.findViewById(R.id.acs_name);
            TextView d = (TextView) rowView.findViewById(R.id.description1);             
            
            
            t.setText(msg.getT()); 
            d.setText("Clique para ver detalhes.");         

            return rowView;
        }   
    
    }
    private void setItList() {
        Itens it;       
        File arq; 
        String lstrlinha;
        String lstrNomeArq;
                       
        try
        {
        lstrNomeArq = txtNomeArq.getText().toString();
        
        arq = new File(Environment.getExternalStorageDirectory(), lstrNomeArq);
BufferedReader br = new BufferedReader(new FileReader(arq));

            while ((lstrlinha = br.readLine()) != null)
            {
                String desc = null;
                it = new Itens();               
                String[] linhaDoArquivo = lstrlinha.split(";"); 
                
                desc = "Preço: "+linhaDoArquivo[1];
                desc += "\n";
                desc += "Quantidade:" + linhaDoArquivo[2];
                
                it.setT(linhaDoArquivo[0]);
                it.setD(desc);          
                
                Acs.add(it); 
                
                
                        
            }
            
        } catch (Exception e){ 
                System.out.println("ERROR: " + e.getMessage());
        
        }
    }
    
    
    public class Itens {    
        
        private String t;
        private String d;   
        
        public void setT(String t) {
            this.t = t;
        }

        public String getT() {
            return t;
        }
                
        public void setD(String d) {
            this.d = d;
        }

        public String getD() {
            return d;
        }
        
        
                
        
    }
}

acs.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical" android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:background="#000000">

        <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Nome do arquivo:" />




    <EditText
        android:id="@+id/edtNomeArq"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:text="NomeDoArq.txt" />
    
    <TextView
        xmlns:android="http://schemas.android.com/apk/res/android"
        android:id="@+id/edtLer"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_weight="0.58"
        android:padding="10dp"
        android:textSize="20sp" />

    <LinearLayout
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:gravity="center_vertical" >

        <Button
            android:layout_width="0dip"
            android:layout_height="wrap_content"
            android:layout_weight="1.0"
            android:onClick="click_Ler"
            android:text="Abrir" />

        <Button
            android:layout_width="0dip"
            android:layout_height="wrap_content"
            android:layout_weight="1.0"
            android:onClick="click_Limpar"
            android:text="Limpar" />
    </LinearLayout>
    
    <ListView android:id="@+id/acs_list"
        android:layout_width="fill_parent" android:layout_height="fill_parent">
    </ListView>

</LinearLayout>

Bem, eu quero saber o por que dele, não estar lendo. E consequentemente separando, e organizando :/. Qual foi o erro da minha lógica?

#2