Android Open Source - hellomap3d-android File Picker Icon Adapter

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License

The source code is released under:

MIT License

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Java Source Code

/*
 * Copyright 2010, 2011 mapsforge.org//w  ww  . ja va 2  s  . c om
 *
 * This program is free software: you can redistribute it and/or modify it under the
 * terms of the GNU Lesser General Public License as published by the Free Software
 * Foundation, either version 3 of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT ANY
 * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
 * PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License along with
 * this program. If not, see <http://www.gnu.org/licenses/>.
 */
package com.nutiteq.filepicker;

import java.io.File;

import android.content.Context;
import android.view.Gravity;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.TextView;

import com.nutiteq.advancedmap3.R;

/**
 * An adapter for the FilePicker GridView.
 */
class FilePickerIconAdapter extends BaseAdapter {
  private final Context context;
  private File currentFile;
  private File[] files;
  private boolean hasParentFolder;
  private TextView textView;

  /**
   * Creates a new FilePickerIconAdapter with the given context.
   * 
   * @param context
   *            the context of this adapter, through which new Views are created.
   */
  FilePickerIconAdapter(Context context) {
    super();
    this.context = context;
  }

  @Override
  public int getCount() {
    if (this.files == null) {
      return 0;
    }
    return this.files.length;
  }

  @Override
  public Object getItem(int index) {
    return this.files[index];
  }

  @Override
  public long getItemId(int index) {
    return index;
  }

  @Override
  public View getView(int index, View convertView, ViewGroup parent) {
    if (convertView instanceof TextView) {
      // recycle the old view
      this.textView = (TextView) convertView;
    } else {
      // create a new view object
      this.textView = new TextView(this.context);
      this.textView.setLines(2);
      this.textView.setGravity(Gravity.CENTER_HORIZONTAL);
      this.textView.setPadding(5, 10, 5, 10);
    }

    if (index == 0 && this.hasParentFolder) {
      // the parent directory of the current folder
      this.textView.setCompoundDrawablesWithIntrinsicBounds(0,
          R.drawable.file_picker_back, 0, 0);
      this.textView.setText("..");
    } else {
      this.currentFile = this.files[index];
      if (this.currentFile.isDirectory()) {
        this.textView.setCompoundDrawablesWithIntrinsicBounds(0,
            R.drawable.file_picker_folder, 0, 0);
      } else {
        this.textView.setCompoundDrawablesWithIntrinsicBounds(0,
            R.drawable.file_picker_file, 0, 0);
      }
      this.textView.setText(this.currentFile.getName());
    }
    return this.textView;
  }

  /**
   * Sets the data of this adapter.
   * 
   * @param files
   *            the new files for this adapter.
   * @param newHasParentFolder
   *            true if the file array has a parent folder at index 0, false otherwise.
   */
  void setFiles(File[] files, boolean newHasParentFolder) {
    this.files = files.clone();
    this.hasParentFolder = newHasParentFolder;
  }
}

Java Source Code List