Android Open Source - android-file-chooser File Chooser

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License

The source code is released under:

GNU General Public License

Java Source Code

package br.com.thinkti.android.filechooser;
/*from w ww.  j a  v  a  2s.c om*/
import java.io.File;
import java.io.FileFilter;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;

import android.app.Activity;
import android.app.ListActivity;
import android.content.Intent;
import android.os.Bundle;
import android.view.KeyEvent;
import android.view.View;
import android.widget.ListView;

public class FileChooser extends ListActivity {
  private File currentDir;
  private FileArrayAdapter adapter;
  private FileFilter fileFilter;
  private File fileSelected;
  private ArrayList<String> extensions;

  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    Bundle extras = getIntent().getExtras();
    if (extras != null) {
      if (extras.getStringArrayList("filterFileExtension") != null) {
        extensions = extras.getStringArrayList("filterFileExtension");
        fileFilter = new FileFilter() {
          @Override
          public boolean accept(File pathname) {
            return ((pathname.isDirectory()) || (pathname.getName()
                .contains(".") ? extensions.contains(pathname
                .getName().substring(
                    pathname.getName().lastIndexOf(".")))
                : false));
          }
        };
      }

      if (extras.getString("startingDirectory") != null) {
        currentDir = new File(extras.getString("startingDirectory"));
      }
    }

    if (currentDir == null) {
      currentDir = new File("/sdcard/");
    }
    fill(currentDir);
  }

  public boolean onKeyDown(int keyCode, KeyEvent event) {
    if (keyCode == KeyEvent.KEYCODE_BACK) {
      if ((!currentDir.getName().equals("sdcard"))
          && (currentDir.getParentFile() != null)) {
        currentDir = currentDir.getParentFile();
        fill(currentDir);
      } else {
        finish();
      }
      return false;
    }
    return super.onKeyDown(keyCode, event);
  }

  private void fill(File f) {
    File[] dirs = null;
    if (fileFilter != null)
      dirs = f.listFiles(fileFilter);
    else
      dirs = f.listFiles();

    this.setTitle(getString(R.string.currentDir) + ": " + f.getName());
    List<Option> dir = new ArrayList<Option>();
    List<Option> fls = new ArrayList<Option>();
    try {
      for (File ff : dirs) {
        if (ff.isDirectory() && !ff.isHidden())
          dir.add(new Option(ff.getName(),
              getString(R.string.folder), ff.getAbsolutePath(),
              true, false, false));
        else {
          if (!ff.isHidden())
            fls.add(new Option(ff.getName(),
                getString(R.string.fileSize) + ": "
                    + ff.length(), ff.getAbsolutePath(),
                false, false, false));
        }
      }
    } catch (Exception e) {

    }
    Collections.sort(dir);
    Collections.sort(fls);
    dir.addAll(fls);
    if (!f.getName().equalsIgnoreCase("sdcard")) {
      if (f.getParentFile() != null)
        dir.add(0, new Option("..",
            getString(R.string.parentDirectory), f.getParent(),
            false, true, false));
    }
    adapter = new FileArrayAdapter(FileChooser.this, R.layout.file_view,
        dir);
    this.setListAdapter(adapter);
  }

  @Override
  protected void onListItemClick(ListView l, View v, int position, long id) {
    // TODO Auto-generated method stub
    super.onListItemClick(l, v, position, id);
    Option o = adapter.getItem(position);
    if (o.isFolder() || o.isParent()) {
      currentDir = new File(o.getPath());
      fill(currentDir);
    } else {
      // onFileClick(o);
      fileSelected = new File(o.getPath());
      Intent intent = new Intent();
      intent.putExtra("fileSelected", fileSelected.getAbsolutePath());
      setResult(Activity.RESULT_OK, intent);
      finish();
    }
  }
  //
  // private void onFileClick(Option o) {
  // Toast.makeText(this, "File Clicked: " + o.getName(), Toast.LENGTH_SHORT)
  // .show();
  // }
}

Java Source Code List

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