Android Open Source - M3UPlayer File Browser

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License

The source code is released under:

Apache License

Java Source Code

package com.iptv.utils;
/*from  w w w  .  j  a v  a  2s  .  co m*/
import java.io.File;
import java.io.FileFilter;
import java.util.ArrayList;
import java.util.HashMap;

import android.app.AlertDialog;
import android.content.Context;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.LinearLayout;
import android.widget.ListView;
import android.widget.SimpleAdapter;
import android.widget.TextView;

import com.iptv.player.R;

public class FileBrowser {
  public static interface OnFileSelectedListener {
    public void onFileSelected(String path);
  }

  private static final String KEY_ICON = "Icon";
  private static final String KEY_NAME = "Name";

  private FileBrowser() {
  }

  private static final void refreshData(File root, File now,
      FileFilter filter, ArrayList<HashMap<String, Object>> data,
      ArrayList<File> files, SimpleAdapter adapter) {
    data.clear();
    files.clear();
    boolean getRoot = root.equals(now);
    if (!getRoot) {
      files.add(now.getParentFile());
    }
    File[] list = now.listFiles(filter);
    ArrayList<File> dirs = new ArrayList<File>();
    ArrayList<File> fils = new ArrayList<File>();
    if (list != null) {
      for (File f : list) {
        if (f.isDirectory()) {
          dirs.add(f);
        } else {
          fils.add(f);
        }
      }
    }
    files.addAll(dirs);
    files.addAll(fils);
    for (File f : files) {
      HashMap<String, Object> map = new HashMap<String, Object>();
      map.put(KEY_ICON, (f.isDirectory() ? R.drawable.ic_dir : R.drawable.ic_doc));
      map.put(KEY_NAME, f.getName());
      data.add(map);
    }
    if (!getRoot) {
      data.get(0).put(KEY_ICON, R.drawable.ic_dir);
      data.get(0).put(KEY_NAME, "../");
    }
    if (adapter != null) {
      adapter.notifyDataSetChanged();
    }
  }

  public static final AlertDialog createFileBrowser(Context ctx,
      final String root, final String extension,
      final OnFileSelectedListener listener) {
    AlertDialog.Builder builder = new AlertDialog.Builder(ctx);
    LinearLayout ll = new LinearLayout(ctx);
    ll.setOrientation(LinearLayout.VERTICAL);
    ll.setPadding(8, 8, 8, 8);
    final TextView head = new TextView(ctx);
    final ListView list = new ListView(ctx);
    final File rootDir = new File(root);
    head.setText(rootDir.getPath());
    final FileFilter filter = new FileFilter() {
      @Override
      public boolean accept(File pathname) {
        return pathname.isDirectory()
            || (pathname.isFile() && pathname.getName().endsWith(extension));
      }
    };
    final ArrayList<HashMap<String, Object>> mData = new ArrayList<HashMap<String, Object>>();
    final ArrayList<File> mFiles = new ArrayList<File>();
    final OnItemClickListener onItemClickListener = new OnItemClickListener() {
      @Override
      public void onItemClick(AdapterView<?> parent, View view,
          int position, long id) {
        File f = mFiles.get(position);
        if (f.isDirectory()) {
          head.setText(f.getPath());
          refreshData(rootDir, f, filter, mData, mFiles,
              (SimpleAdapter) list.getAdapter());
        } else {
          if (listener != null) {
            listener.onFileSelected(f.getPath());
          }
        }
      }
    };
    refreshData(rootDir, rootDir, filter, mData, mFiles, null);
    list.setAdapter(new SimpleAdapter(ctx, mData, R.layout.listitem,
        new String[] { KEY_ICON, KEY_NAME }, new int[] {
            R.id.item_icon, R.id.item_name }));
    list.setOnItemClickListener(onItemClickListener);
    ll.addView(head);
    ll.addView(list);
    builder.setView(ll);
    return builder.create();
  }
}

Java Source Code List

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