Android Open Source - android-chess File List View

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License

The source code is released under:

MIT License

Java Source Code

package jwtc.android.chess.tools;
/*from  w  w  w . ja  v  a2 s.c o m*/
import java.io.File;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;

import android.app.ListActivity;
import android.content.Intent;
import android.graphics.drawable.Drawable;
import android.net.Uri;
import android.os.Bundle;
import android.view.Gravity;
import android.view.View;
import android.widget.ListView;
import android.widget.Toast;

import jwtc.android.chess.R;
import jwtc.android.chess.iconifiedlist.*;

public class FileListView extends ListActivity { 
    
  private File currentDirectory = new File("/");
  private List<IconifiedText> directoryEntries = new ArrayList<IconifiedText>();
  
  private String _mode = null;
  
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        
     }
    
    private void browseToRoot() {
    browseTo(new File("/"));
    }
    
    @Override
    protected void onResume() {
        super.onResume();

        final Intent intent = getIntent();
        Bundle extras =intent.getExtras(); 
        if(extras != null){
          String type = extras.getString(pgntool.EXTRA_MODE); 
          if(type != null){
            _mode = type;
          }
        }
        if(_mode == null)
        {
          doToast("Action not supported");
          finish();
        }
    browseToRoot();
    /*
    AlertDialog.Builder builder = new AlertDialog.Builder(this);
    builder.setTitle("Choose action");
    
    builder.setPositiveButton("Import", new DialogInterface.OnClickListener(){
      public void onClick(DialogInterface dialog, int which) {
        dialog.dismiss();
        _mode = MODE_IMPORT;
        browseToRoot();
      }
      
    });
    
    builder.setNegativeButton("Export", new DialogInterface.OnClickListener(){
      public void onClick(DialogInterface dialog, int which) {
        dialog.dismiss();
        _mode = MODE_EXPORT;
        browseToRoot();
      }
    });
    
    AlertDialog alert = builder.create();
    alert.show();
    */            
    }
    
    private void upOneLevel(){
    if(this.currentDirectory.getParent() != null)
      this.browseTo(this.currentDirectory.getParentFile());
  }
  
  private void browseTo(final File aDirectory){
    // On relative we display the full path in the title.
    this.setTitle(aDirectory.getName() + " :: " + getFolderTitleForMode());
    if (aDirectory.isDirectory()){
      this.currentDirectory = aDirectory;
      fill(aDirectory.listFiles());
    }else{

      openFile(aDirectory);
      
    }
  }
  
  protected String getFolderTitleForMode(){
    if(_mode.equals(pgntool.MODE_IMPORT) || _mode.equals(pgntool.MODE_CREATE_PRACTICE) || _mode.equals(pgntool.MODE_IMPORT_PUZZLE) || _mode.equals(pgntool.MODE_IMPORT_OPENINGDATABASE)){
      return "*.pgn;*.zip";
    }
    else if(_mode.equals(pgntool.MODE_DB_IMPORT)){
      return "*.bin";
    }
    else if(_mode.equals(pgntool.MODE_UCI_INSTALL)){
      return "uci engine";
    }
    else if(_mode.equals(pgntool.MODE_IMPORT_PRACTICE)){
      return "*.txt";
    }
    return null;
  }
  
  protected boolean fileNameFilterByMode(String sName){
    if(_mode.equals(pgntool.MODE_IMPORT) || _mode.equals(pgntool.MODE_DB_IMPORT) || _mode.equals(pgntool.MODE_CREATE_PRACTICE) || _mode.equals(pgntool.MODE_IMPORT_PUZZLE) || _mode.equals(pgntool.MODE_IMPORT_OPENINGDATABASE)){
      if(sName.toLowerCase().endsWith(".pgn") || sName.endsWith(".zip")){
        return true;
      }
    } else if(_mode.equals(pgntool.MODE_DB_POINT)){
      if(sName.toLowerCase().endsWith(".bin")){
        return true;
      }
    } else if(_mode.equals(pgntool.MODE_UCI_INSTALL)){
      return true;
    } else if(_mode.equals(pgntool.MODE_IMPORT_PRACTICE)){
      if(sName.toLowerCase().endsWith(".txt")){
        return true;
      }
    }
    return false;
  }
  
  private void openFile(final File aFile){
    
    try {

      if(fileNameFilterByMode(aFile.getName()))
      {
        //
        Intent myIntent = new Intent();
        myIntent.putExtra(pgntool.EXTRA_MODE, _mode);
        myIntent.setClass(FileListView.this, importactivity.class);
        myIntent.setData(Uri.parse("file://" + aFile.getAbsolutePath()));
        
        startActivity(myIntent);
        
      }
    } catch (Exception e) {
      doToast("Could not open file, no program association...");
      e.printStackTrace();
    }

  }

   public void doToast(final String text){
    Toast t = Toast.makeText(this, text, Toast.LENGTH_LONG);
    t.setGravity(Gravity.BOTTOM, 0, 0);
    t.show();
    }
  
  private void fill(File[] files) {
    this.directoryEntries.clear();
    
    // Add the "." == "current directory"
    this.directoryEntries.add(new IconifiedText(".", getResources().getDrawable(R.drawable.collections_collection)));    
    // and the ".." == 'Up one level'
    if(this.currentDirectory.getParent() != null){
      this.directoryEntries.add(new IconifiedText("..", 
          getResources().getDrawable(R.drawable.navigation_previous_item)));
    }
    Drawable currentIcon = null;
    for (File currentFile : files){
      if (currentFile.canRead() /*&& (_mode == MODE_IMPORT  || _mode == MODE_EXPORT && currentFile.canWrite())*/){
        if (currentFile.isDirectory()) {
          currentIcon = getResources().getDrawable(R.drawable.collections_collection);
          this.directoryEntries.add(new IconifiedText(currentFile.getPath(), currentIcon));
        }else { 
          String fileName = currentFile.getName();
    
          if(fileNameFilterByMode(fileName))
          {
            currentIcon = getResources().getDrawable(R.drawable.navigation_next_item);
            this.directoryEntries.add(new IconifiedText(currentFile.getPath(), currentIcon));
          }        
        }
      }
    }
    Collections.sort(this.directoryEntries);
    
    IconifiedTextListAdapter itla = new IconifiedTextListAdapter(this);
    itla.setListItems(this.directoryEntries);    
    this.getListView().setAdapter(itla);
  }

  protected void onListItemClick(ListView l, View v, int position, long id) {
    super.onListItemClick(l, v, position, id);
    
    if(this.directoryEntries.size() > position){
      String selectedFileString = this.directoryEntries.get(position).getText();
      if (selectedFileString.equals(".")) {
        // Refresh
        this.browseTo(this.currentDirectory);
      } else if(selectedFileString.equals("..")){
        this.upOneLevel();
      } else {
        File clickedFile = new File(this.directoryEntries.get(position).getText());
        if(clickedFile != null)
          this.browseTo(clickedFile);
      }
    }
  }  
}

Java Source Code List

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