ListFilesActivity.java :  » UnTagged » graphicpages » org » nateperry » graphicpages » Android Open Source

package org.nateperry.graphicpages;

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

import android.app.ListActivity;
import android.content.Intent;
import android.os.AsyncTask;
import android.os.Bundle;
import android.os.Environment;
import android.util.Log;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.Toast;
import android.widget.AdapterView.OnItemClickListener;

public class ListFilesActivity extends ListActivity {

  private UpdateTask _updateTask;
  private ListFilesActivity _thisActivity;
  
  @Override
  public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        _thisActivity = this;
        //setContentView(R.layout.list_files);
        
        setListAdapter(new ArrayAdapter<String>(_thisActivity, R.layout.list_file, new String[] {}));
        
        ListView lv = getListView();
        lv.setTextFilterEnabled(true);
    lv.setOnItemClickListener(ui_ListView_OnItemClickListener);
    
    Update();
    }
  
  private OnItemClickListener ui_ListView_OnItemClickListener =  new OnItemClickListener() {
    public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
      
      Object item = getListAdapter().getItem(position);
      if (item instanceof WebComicPage) {
        WebComicPage page = (WebComicPage)item;
        WebComicInstance.SetIndex(page.GetId());
        
        Intent i = new Intent(_thisActivity, GraphicPageViewerActivity.class);
        i.setFlags(Intent.FLAG_ACTIVITY_REORDER_TO_FRONT);
              startActivity(i);
              finish();
      }
      
          //ListView lv = getListView();
          //lv.getItemAtPosition(position)
          //Intent i = new GoToPageIntent(this, ListFilesActivity.class, );
      
    }
  };

    protected void Update() {
      if (_updateTask != null) _updateTask.cancel(false);
    _updateTask = new UpdateTask();
      _updateTask.execute(0);
    };

    public boolean onCreateOptionsMenu(Menu menu) {
        MenuInflater inflater = getMenuInflater();
        inflater.inflate(R.menu.list_files_menu, menu);
        return true;
    }

    public boolean onOptionsItemSelected(MenuItem item) {
        switch (item.getItemId()) {
        case R.id.purge:
          Toast.makeText(getApplicationContext(), "Not yet implemented.", Toast.LENGTH_SHORT).show();
            return true;
        default:
            return super.onOptionsItemSelected(item);
        }
    }

  private class UpdateTask extends AsyncTask<Integer, Integer, ArrayList<WebComicPage>> {

    @Override
    protected void onPreExecute () {

    }

    @Override
    protected ArrayList<WebComicPage> doInBackground(Integer... params) {

      //String[] files;
      ArrayList<WebComicPage> pages = new ArrayList<WebComicPage>();

      try {

        File dir = getFilesDir();
          File xDir = null;

          if (Environment.MEDIA_MOUNTED.equals(Environment.getExternalStorageState())) {

            //File myDir = getExternalFilesDir(Environment.DIRECTORY_PICTURES); // Android API 8 only

            File xDirRoot = Environment.getExternalStorageDirectory();
            xDir = new File(xDirRoot, Globals.EXTERNAL_DATA_FOLDER);

          }

          if (null != xDir) {
            String[] list = xDir.list();
            if (null != list) {
  
              for (String item : list) {
                pages.add(new WebComicPage(WebComicInstance.getLot(), item));
              }

              //files.addAll(Arrays.asList(list));
            }
          }

          if (null != dir) {
            String[] list = dir.list();
            if (null != list) {
              
              for (String item : list) {
                pages.add(new WebComicPage(WebComicInstance.getLot(), item));
              }
              
              //files.addAll(Arrays.asList(list));
            }
          }
          
          Collections.sort(pages, new WebComicPageComparator());
          return pages;
          
      } catch (Exception e) {
        e.printStackTrace();
        Log.w("downloading", e);
      }
      
      return null;
    }

    @Override
    protected void onPostExecute(ArrayList<WebComicPage> files) {
         if (files != null) {
           //ListView list = (ListView)findViewById(R.id.ui_files_ListView);
            setListAdapter(new ArrayAdapter<WebComicPage>(_thisActivity, R.layout.list_file, files));
        }
    }
    
    @Override
    protected void onProgressUpdate (Integer... values) {
      
    }
  }
    
}