File Chooser

readme.md

Item.java es el TAO para el item de la lista... tiene la ruta, el nombre y la imagen ThirdActivity.java es la actividad donde se encuentra el filechooser de imagenes SecondActivity.java se mueven las imagenes a una carpeta predefinida MainActivity.java es a que maneja todo

item.java

package com.macochave.filechooser;

/**
 * Created by marco on 25/09/17.
 */

public class Item
{
    private int imagenes;
    private String pathImage;
    private String titulo, subTitulo;

    public Item() {
    }

    public Item(int imagenes, String pathImage, String titulo, String subTitulo) {
        this.imagenes = imagenes;
        this.pathImage = pathImage;
        this.titulo = titulo;
        this.subTitulo = subTitulo;
    }

    public int getImagenes() {
        return imagenes;
    }

    public void setImagenes(int imagenes) {
        this.imagenes = imagenes;
    }

    public String getTitulo() {
        return titulo;
    }

    public void setTitulo(String titulo) {
        this.titulo = titulo;
    }

    public String getSubTitulo() {
        return subTitulo;
    }

    public String getPathImage() {
        return pathImage;
    }

    public void setPathImage(String pathImage) {
        this.pathImage = pathImage;
    }

}

ListViewAdapter.java

package com.macochave.filechooser;

import android.content.Context;
import android.net.Uri;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.TextView;

import java.util.ArrayList;

/**
 * Created by marco on 25/09/17.
 */

public class ListViewAdapter extends BaseAdapter {

    private ArrayList<Item> items;
    private Context context;
    private LayoutInflater inflater;

    public ListViewAdapter() {
    }

    public ListViewAdapter(ArrayList<Item> items, Context context) {
        this.items = items;
        this.context = context;
    }

    @Override
    public int getCount() {
        return items.size();
    }

    @Override
    public Object getItem(int i) {
        return items.get(i);
    }

    @Override
    public long getItemId(int i) {
        return i;
    }

    @Override
    public View getView(int i, View view, ViewGroup viewGroup) {
        inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        View vistaItem = inflater.inflate(R.layout.layout_item, viewGroup, false);
        ImageView imagen = vistaItem.findViewById(R.id.vwImage);
        TextView titulo = vistaItem.findViewById(R.id.txtTitulo);
        TextView subTitulo = vistaItem.findViewById(R.id.txtSubTitulo);

        imagen.setImageResource(items.get(i).getImagenes());
        titulo.setText(items.get(i).getTitulo());
        subTitulo.setText(items.get(i).getSubTitulo());

        if (items.get(i).getPathImage().length() > 0) {
            imagen.setImageURI(Uri.parse(items.get(i).getPathImage()));
        }

        return vistaItem;
    }

}

MainActivity.java

package com.macochave.filechooser;

import android.content.Context;
import android.os.Environment;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;

public class MainActivity extends AppCompatActivity implements View.OnClickListener {

    private Button btnRdMemoInter, btnWMemoInter, btnRdSD, btnWSD, btnRdProgram;
    private TextView txtTexto;
    private boolean sdDisponible = false;
    private boolean sdAccesoEscritura = false;
    /*
     * FUENTES
     * https://es.icons8.com
     * https://www.flaticon.es/autores/smashicons
     */

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        btnRdMemoInter = (Button) findViewById(R.id.btnRdMemoInt);
        btnWMemoInter = (Button) findViewById(R.id.btnWMemoInt);
        btnRdSD = (Button) findViewById(R.id.btnRdSD);
        btnWSD = (Button) findViewById(R.id.btnWSD);
        btnRdProgram = (Button) findViewById(R.id.btnRdProgram);
        txtTexto = (TextView) findViewById(R.id.txtTexto);

        btnRdMemoInter.setOnClickListener(this);
        btnWMemoInter.setOnClickListener(this);
        btnRdSD.setOnClickListener(this);
        btnWSD.setOnClickListener(this);
        btnRdProgram.setOnClickListener(this);

        String estadoSD = Environment.getExternalStorageState();

        /*
         * HAY TARJETA SD INSERTADA
         * TARJETA SD CON PERMISOS DE LECTURA
         */
        sdDisponible = estadoSD.equals(Environment.MEDIA_MOUNTED) ? true : false;
        sdAccesoEscritura = estadoSD.equals(Environment.MEDIA_MOUNTED_READ_ONLY) ? true : false;
    }

    @Override
    public void onClick(View view) {
        switch (view.getId())
        {
            case R.id.btnRdMemoInt:
                try {
                    BufferedReader reader  =
                            new BufferedReader(new InputStreamReader(
                                    openFileInput("meminterna.txt")
                            ));

                    String texto = reader.readLine();
                    txtTexto.setText(texto);
                    reader.close();
                }
                catch (Exception ex)
                {
                    Log.e("Ficheros", ex.getMessage());
                }
                break;
            case R.id.btnWMemoInt:
                try {
                    OutputStreamWriter writer =
                            new OutputStreamWriter(
                                    openFileOutput("meminterna.txt",
                                            Context.MODE_PRIVATE)
                            );
                    writer.write("Contenido del fichero de memoria interna.");
                    writer.close();
                }
                catch (Exception ex)
                {
                    Log.e("Ficheros", ex.getMessage());
                }
                break;
            case R.id.btnRdSD:
                if (sdDisponible)
                {
                    try {
                        File ruta_SD = Environment.getExternalStorageDirectory();
                        File file = new File(ruta_SD.getAbsolutePath(), "ficheroSD.txt");

                        BufferedReader reader =
                                new BufferedReader(
                                        new InputStreamReader(
                                                new FileInputStream(file)
                                        )
                                );

                        String texto = reader.readLine();
                        txtTexto.setText(texto);
                        reader.close();
                    }
                    catch (Exception ex)
                    {
                        Log.e("Ficheros", ex.getMessage());
                    }
                }
                break;
            case R.id.btnWSD:
                if (sdDisponible && sdAccesoEscritura)
                {
                    try {
                        File ruta_SD = Environment.getExternalStorageDirectory();
                        File file = new File(ruta_SD.getAbsolutePath(), "ficheroSD.txt");

                        OutputStreamWriter writer =
                                new OutputStreamWriter(
                                        new FileOutputStream(file)
                                );

                        writer.write("Contenido del fichero de la SD");
                        writer.close();
                    }
                    catch (Exception ex)
                    {
                        Log.e("Ficheros", ex.getMessage());
                    }
                }
                break;
            case R.id.btnRdProgram:
                try {
                    InputStream stream =
                            getResources().openRawResource(R.raw.ficheroraw);

                    BufferedReader reader =
                            new BufferedReader(
                                    new InputStreamReader(stream)
                            );

                    String texto = reader.readLine();
                    txtTexto.setText(texto);

                    reader.close();
                }
                catch (Exception ex)
                {
                    Log.e("Ficheros", ex.getMessage());
                }
                break;
            default:
                break;
        }
    }
}

SecondActivity.java

package com.macochave.filechooser;

import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.os.Environment;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.TextView;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.FileReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;

public class SecondActivity extends AppCompatActivity implements View.OnClickListener
{
    private TextView txtSeleccion,txtTexto;
    private Button btnBuscar, btnMover;
    private ImageView imgImagen;
    private String filename;
    private String fullpath;

    @Override
    protected void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_second);

        File file = new File(Environment.getExternalStorageDirectory() + "/inventario");
        file.mkdir();

        txtSeleccion = (TextView) findViewById(R.id.txtSelect);
        txtTexto = (TextView) findViewById(R.id.txtTexto);
        btnBuscar = (Button) findViewById(R.id.btnBuscar);
        btnMover = (Button) findViewById(R.id.btnMover);
        imgImagen = (ImageView) findViewById(R.id.imgImagen);

        btnBuscar.setOnClickListener(this);
        btnMover.setOnClickListener(this);

        try
        {
            Intent intent = getIntent();
            filename = intent.getExtras().getString("filename");
            fullpath = intent.getExtras().getString("fullpath");
            Log.i("filename", filename);
            Log.i("fullpath", fullpath);
            txtSeleccion.setText(filename);
            imgImagen.setImageURI(Uri.parse(fullpath));
        }
        catch (Exception ex)
        {
            Log.e("GetIntent", ex.getMessage());
        }
    }

    @Override
    public void onClick(View view)
    {
        switch (view.getId())
        {
            case R.id.btnBuscar:
                explorar();
                break;
            case R.id.btnMover:
                mover();
                break;
            default:
                break;
        }
    }

    private void explorar()
    {
        Intent intent = new Intent(this, ThirdActivity.class);
        startActivity(intent);
    }

    private void mover()
    {
        if (fullpath.length() > 0)
        {
            try
            {
                String fullname_destino = Environment.getExternalStorageDirectory() + "/inventario/" + filename;
                Log.i("Copiar", fullname_destino);
                Log.i("Copiar", fullpath);
                InputStream inputStream = new FileInputStream(fullpath);
                OutputStream outputStream = new FileOutputStream(fullname_destino);

                byte[] buf = new byte[1024];
                int len;

                while ((len = inputStream.read(buf)) > 0)
                    outputStream.write(buf, 0, len);

                inputStream.close();
                outputStream.close();

                Log.i("Copiar", "Archivo copiado con éxito");
            }
            catch (IOException ex)
            {
                Log.e("Copiar", ex.getMessage());
            }
        }
    }

    private void abrirArchivo()
    {
        try {
            File file = new File(filename);

            if (file != null)
            {
                Log.i("Open File", "Archivo abierto con éxito");
                FileReader reader = new FileReader(file);
                BufferedReader bufferedReader = new BufferedReader(reader);
                String texto = bufferedReader.readLine();
                String aux = "";
                while (texto != null)
                {
                    aux += texto;
                    texto = bufferedReader.readLine();
                }
                txtTexto.setText(aux);
                bufferedReader.close();
            }
            else
            {
                Log.e("Open File", "No se puede abrir el archivo");
            }
        }
        catch (Exception ex)
        {
            Log.e("Open File", ex.getMessage());
        }
    }
}

ThirdActivity.java

package com.macochave.filechooser;

import android.content.Intent;
import android.os.Bundle;
import android.os.Environment;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ListView;

import java.io.File;
import java.util.ArrayList;

public class ThirdActivity extends AppCompatActivity implements AdapterView.OnItemClickListener {

    private String directorioRaiz;
    private ListView lstLista;
    private ArrayList<Item> items;
    private ListViewAdapter adapter;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_third);

        lstLista = (ListView) findViewById(R.id.lstList);
        items = new ArrayList<>();
        directorioRaiz = Environment.getExternalStorageDirectory().getPath();
        Log.i("FileChooser", directorioRaiz);

        listaArchivos(directorioRaiz);

        lstLista.setOnItemClickListener(this);
    }

    private void listaArchivos(String directorio)
    {
        File file = new File(directorio);
        File[] files = file.listFiles();

        items.add(
                new Item(R.drawable.carpeta, "", "Subir carpeta", "../")
        );
        for (File f : files)
        {
            Item item = new Item(
                    R.drawable.carpeta,
                    "",
                    f.getName(),
                    f.getPath()
            };
            if (f.isFile())
            {
                if (f.getPath().endsWith("jpg") || f.getPath().endsWith("jpeg") || f.getPath().endsWith("png"))
                    item.setPathImage(f.getPath());
                item.setImagenes(R.drawable.archivo);
            }
            items.add(item);
        }
        adapter = new ListViewAdapter(items, this);

        lstLista.setAdapter(adapter);
    }

    @Override
    public void onItemClick(AdapterView<?> adapterView, View view, int i, long l) {
        Item item = (Item) adapterView.getItemAtPosition(i);

        File file = new File(item.getSubTitulo());

        if (file.isFile())
        {
            Log.i("FileChooser", item.getTitulo());
            Log.i("FileChooser", item.getSubTitulo());

            Intent intent = new Intent(this, SecondActivity.class);
            intent.putExtra("filename", item.getTitulo());
            intent.putExtra("fullpath", item.getSubTitulo());
            startActivity(intent);
        }
        else
        {
            Log.i("FileChooser", item.getTitulo());
            Log.i("FileChooser", item.getSubTitulo());
            adapter = null;
            items.clear();
            lstLista.setAdapter(adapter);
            listaArchivos(item.getSubTitulo());
        }
    }
}