Android Open Source - Easy_File_Scramble File Dialog






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Back to project page Easy_File_Scramble.

License

The source code is released under:

Copyright (c) 2011, 2012, Hunter Davis All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are m...

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Java Source Code

package com.hunterdavis.easyfilescramble;
//from  w ww  .jav  a 2s. c om
import java.io.File;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.TreeMap;

import android.app.AlertDialog;
import android.app.ListActivity;
import android.content.DialogInterface;
import android.os.Bundle;
import android.view.KeyEvent;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.inputmethod.InputMethodManager;
import android.widget.Button;
import android.widget.EditText;
import android.widget.LinearLayout;
import android.widget.ListView;
import android.widget.SimpleAdapter;
import android.widget.TextView;

public class FileDialog extends ListActivity {

  private static final String ITEM_KEY = "key";
  private static final String ITEM_IMAGE = "image";

  public static final String START_PATH = "START_PATH";
  public static final String RESULT_PATH = "RESULT_PATH";

  private List<String> item = null;
  private List<String> path = null;
  private String root = "/";
  private TextView myPath;
  private EditText mFileName;
  private ArrayList<HashMap<String, Object>> mList;

  private Button selectButton;
  private Button newButton;
  private Button cancelButton;
  private Button createButton;

  private LinearLayout layoutSelect;
  private LinearLayout layoutCreate;
  private InputMethodManager inputManager;
  private String parentPath;
  private String currentPath = root;

  private File selectedFile;
  private HashMap<String, Integer> lastPositions = new HashMap<String, Integer>();

  /** Called when the activity is first created. */
  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setResult(RESULT_CANCELED, getIntent());

    setContentView(R.layout.file_dialog_main);
    myPath = (TextView) findViewById(R.id.path);
    mFileName = (EditText) findViewById(R.id.fdEditTextFile);

    inputManager = (InputMethodManager) getSystemService(INPUT_METHOD_SERVICE);

    selectButton = (Button) findViewById(R.id.fdButtonSelect);
    selectButton.setEnabled(false);
    selectButton.setOnClickListener(new OnClickListener() {

      @Override
      public void onClick(View v) {
        if (selectedFile != null) {
          getIntent().putExtra(RESULT_PATH, selectedFile.getPath());
          setResult(RESULT_OK, getIntent());
          finish();
        }
      }
    });

    //newButton = (Button) findViewById(R.id.fdButtonNew);
    /*//newButton.setOnClickListener(new OnClickListener() {

      @Override
      public void onClick(View v) {
        layoutSelect.setVisibility(View.GONE);
        layoutCreate.setVisibility(View.VISIBLE);

        mFileName.setText("");
        mFileName.requestFocus();
      }
    })0*/

    layoutSelect = (LinearLayout) findViewById(R.id.fdLinearLayoutSelect);
    layoutCreate = (LinearLayout) findViewById(R.id.fdLinearLayoutCreate);
    layoutCreate.setVisibility(View.GONE);

    cancelButton = (Button) findViewById(R.id.fdButtonCancel);
    cancelButton.setOnClickListener(new OnClickListener() {

      @Override
      public void onClick(View v) {
        layoutCreate.setVisibility(View.GONE);
        layoutSelect.setVisibility(View.VISIBLE);

        inputManager.hideSoftInputFromWindow(v.getWindowToken(), 0);
        unselect();
      }

    });
    createButton = (Button) findViewById(R.id.fdButtonCreate);
    createButton.setOnClickListener(new OnClickListener() {

      @Override
      public void onClick(View v) {
        if (mFileName.getText().length() > 0) {
          getIntent().putExtra(RESULT_PATH,
              currentPath + "/" + mFileName.getText());
          setResult(RESULT_OK, getIntent());
          finish();
        }
      }
    });

    String startPath = getIntent().getStringExtra(START_PATH);
    if (startPath != null) {
      getDir(startPath);
    } else {
      getDir(root);
    }
  }

  private void getDir(String dirPath) {

    boolean useAutoSelection = dirPath.length() < currentPath.length();

    Integer position = lastPositions.get(parentPath);

    getDirImpl(dirPath);

    if (position != null && useAutoSelection) {
      getListView().setSelection(position);
    }

  }

  private void getDirImpl(String dirPath) {

    myPath.setText(getText(R.string.location) + ": " + dirPath);
    currentPath = dirPath;

    item = new ArrayList<String>();
    path = new ArrayList<String>();
    mList = new ArrayList<HashMap<String, Object>>();

    File f = new File(dirPath);
    File[] files = f.listFiles();

    if (!dirPath.equals(root)) {

      item.add(root);
      addItem(root, R.drawable.folder);
      path.add(root);

      item.add("../");
      addItem("../", R.drawable.folder);
      path.add(f.getParent());
      parentPath = f.getParent();

    }

    TreeMap<String, String> dirsMap = new TreeMap<String, String>();
    TreeMap<String, String> dirsPathMap = new TreeMap<String, String>();
    TreeMap<String, String> filesMap = new TreeMap<String, String>();
    TreeMap<String, String> filesPathMap = new TreeMap<String, String>();
    for (File file : files) {
      if (file.isDirectory()) {
        String dirName = file.getName();
        dirsMap.put(dirName, dirName);
        dirsPathMap.put(dirName, file.getPath());
      } else {
        filesMap.put(file.getName(), file.getName());
        filesPathMap.put(file.getName(), file.getPath());
      }
    }
    item.addAll(dirsMap.tailMap("").values());
    item.addAll(filesMap.tailMap("").values());
    path.addAll(dirsPathMap.tailMap("").values());
    path.addAll(filesPathMap.tailMap("").values());

    SimpleAdapter fileList = new SimpleAdapter(this, mList,
        R.layout.file_dialog_row,
        new String[] { ITEM_KEY, ITEM_IMAGE }, new int[] {
            R.id.fdrowtext, R.id.fdrowimage });

    for (String dir : dirsMap.tailMap("").values()) {
      addItem(dir, R.drawable.folder);
    }

    for (String file : filesMap.tailMap("").values()) {
      addItem(file, R.drawable.file);
    }

    fileList.notifyDataSetChanged();

    setListAdapter(fileList);

  }

  private void addItem(String fileName, int imageId) {
    HashMap<String, Object> item = new HashMap<String, Object>();
    item.put(ITEM_KEY, fileName);
    item.put(ITEM_IMAGE, imageId);
    mList.add(item);
  }

  @Override
  protected void onListItemClick(ListView l, View v, int position, long id) {

    File file = new File(path.get(position));

    if (file.isDirectory()) {
      unselect();
      if (file.canRead()) {
        lastPositions.put(currentPath, position);
        getDir(path.get(position));
      } else {
        new AlertDialog.Builder(this).setIcon(R.drawable.icon)
            .setTitle(
                "[" + file.getName() + "] "
                    + getText(R.string.cant_read_folder))
            .setPositiveButton("OK",
                new DialogInterface.OnClickListener() {

                  @Override
                  public void onClick(DialogInterface dialog,
                      int which) {

                  }
                }).show();
      }
    } else {
      selectedFile = file;
      v.setSelected(true);
      selectButton.setEnabled(true);
    }
  }

  @Override
  public boolean onKeyDown(int keyCode, KeyEvent event) {
    if ((keyCode == KeyEvent.KEYCODE_BACK)) {
      unselect();

      if (layoutCreate.getVisibility() == View.VISIBLE) {
        layoutCreate.setVisibility(View.GONE);
        layoutSelect.setVisibility(View.VISIBLE);
      } else {
        if (!currentPath.equals(root)) {
          getDir(parentPath);
        } else {
          return super.onKeyDown(keyCode, event);
        }
      }

      return true;
    } else {
      return super.onKeyDown(keyCode, event);
    }
  }

  private void unselect() {
    selectButton.setEnabled(false);
  }
}




Java Source Code List

com.hunterdavis.easyfilescramble.EasyFileScramble.java
com.hunterdavis.easyfilescramble.FileDialog.java