AAAAFilePickerActivity.java

/************************************************************************************
** The MIT License (MIT)
**
** Copyright (c) 2017 EXL
** Copyright (c) 2016 Solexid
**
** Permission is hereby granted, free of charge, to any person obtaining a copy
** of this software and associated documentation files (the "Software"), to deal
** in the Software without restriction, including without limitation the rights
** to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
** copies of the Software, and to permit persons to whom the Software is
** furnished to do so, subject to the following conditions:
**
** The above copyright notice and this permission notice shall be included in all
** copies or substantial portions of the Software.
**
** THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
** IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
** FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
** AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
** LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
** OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
** SOFTWARE.
************************************************************************************/

package ru.exlmoto.aaaa;

import java.io.File;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Date;
import java.util.List;
import java.util.Locale;

import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.graphics.drawable.Drawable;
import android.os.AsyncTask;
import android.os.Bundle;
import android.os.Environment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.View.OnClickListener;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.TextView;

public class AAAAFilePickerActivity extends Activity {

	// For OBB cache files
	final private static String fExt = ".OBB";

	private static File currentPath = null;
	private FArrayAdapter adapter = null;
	private static ListView delta = null;

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);

		setContentView(R.layout.aaaa_filepicker);

		if (currentPath == null) {
			String startPath = Environment.getExternalStorageDirectory().toString();
			currentPath = new File(startPath);
		}

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

			@Override
			public void onClick(View v) {
				onCancelButtonClick(v);
			}
		});

		fillFileList(currentPath);
	}

	public void onObbClick() {
		Intent intent = new Intent();
		intent.putExtra("ObbPath", currentPath.toString());
		setResult(RESULT_OK, intent);
		finish();
	}

	public void onCancelButtonClick(View v) {
		Intent intent = new Intent();
		setResult(RESULT_CANCELED, intent);
		finish();
	}

	private void fillFileList(File startPath) {
		new FillListTask(startPath).execute();
	}

	private class FillListTask extends AsyncTask<Void, Void, List<FItem>> {

		File s_startPath = null;

		public FillListTask(File a_startFolder) {
			s_startPath = a_startFolder;
		}

		@Override
		protected List<FItem> doInBackground(Void... params) {
			File[] listFiles = s_startPath.listFiles();
			List<FItem> listItemsDirs = new ArrayList<FItem>();
			List<FItem> listItemsFiles = new ArrayList<FItem>();

			while (listFiles == null) {
				String parent = s_startPath.getParent();
				if (parent != null) {
					s_startPath = new File(parent);
				} else {
					s_startPath = new File(Environment.getExternalStorageDirectory().toString());
				}
				listFiles = s_startPath.listFiles();
			}

			for (File file : listFiles) {
				Date lastModifiedDate = new Date(file.lastModified());
				SimpleDateFormat formatter = new SimpleDateFormat("dd-MMM-yyyy, HH:mm:ss", Locale.getDefault());
				String dateModified = formatter.format(lastModifiedDate);
				if (file.isDirectory()) {
					File[] dirFiles = file.listFiles();
					int num;
					if (dirFiles != null) {
						num = dirFiles.length;
					} else {
						num = 0;
					}
					String numItems = String.valueOf(num);
					if (num == 0) {
						numItems = getResources().getString(R.string.no_items);
					} else if (num == 1) {
						numItems += " " + getResources().getString(R.string.item);
					} else {
						numItems += " " + getResources().getString(R.string.items);
					}
					listItemsDirs.add(new FItem(file.getName(), numItems, dateModified,
							file.getAbsolutePath(), R.drawable.folder));
				} else {
					if (file.getName().endsWith(fExt.toLowerCase(Locale.getDefault()))
							|| file.getName().endsWith(fExt)) {
						listItemsFiles.add(new FItem(file.getName(), Math.round(
								file.length() / 1024.0d / 1024.0d * 100.0d) / 100.0d + " " +
								getResources().getString(R.string.mbytes), dateModified,
								file.getAbsolutePath(), R.drawable.obb_package));
					}
				}
			}

			Collections.sort(listItemsDirs);
			Collections.sort(listItemsFiles);
			listItemsDirs.addAll(listItemsFiles);
			if(s_startPath.getPath().length() > 1) {
				listItemsDirs.add(0, new FItem("..", getResources().getString(R.string.parent_dir), "",
						s_startPath.getParent(), R.drawable.folder_up));
			}
			return listItemsDirs;
		}

		@Override
		protected void onPostExecute(List<FItem> result) {
			adapter = new FArrayAdapter(AAAAFilePickerActivity.this, R.layout.aaaa_filepicker_row, result);
			delta = (ListView) findViewById(R.id.FileView);
			delta.setAdapter(adapter);
			delta.setOnItemClickListener(new OnItemClickListener() {

				@Override
				public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
					FItem fItem = adapter.getItem(position);
					currentPath = new File(fItem.getPath());
					if (fItem.getName().endsWith(fExt.toLowerCase(Locale.getDefault()))
							|| fItem.getName().endsWith(fExt)) {
						onObbClick();
					} else {
						fillFileList(currentPath);
					}
				}
			});
		}
	}
}

//--- FArrayAdapter
class FArrayAdapter extends ArrayAdapter<FItem> {

	private Context context;
	private int textViewResourceId;
	private List<FItem> itemsList;

	public FArrayAdapter(Context a_context, int a_textViewResourceId,
			List<FItem> a_itmesList) {
		super(a_context, a_textViewResourceId, a_itmesList);
		context = a_context;
		textViewResourceId = a_textViewResourceId;
		itemsList = a_itmesList;
	}

	public FItem getFItem(int i) {
		return itemsList.get(i);
	}

	@Override
	public View getView(int position, View convertView, ViewGroup parent) {
		View view = convertView;
		if (view == null) {
			LayoutInflater layoutInflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
			view = layoutInflater.inflate(textViewResourceId, null);
		}

		final FItem fInstance = itemsList.get(position);
		if (fInstance != null) {
			TextView fileName = (TextView) view.findViewById(R.id.fileName);
			TextView fileItems = (TextView) view.findViewById(R.id.fileItems);
			TextView fileDate = (TextView) view.findViewById(R.id.fileDate);
			ImageView imageIcon = (ImageView) view.findViewById(R.id.fileIcon);

			@SuppressWarnings("deprecation")
			Drawable drawable = context.getResources().getDrawable(fInstance.getImageId());
			imageIcon.setImageDrawable(drawable);

			if (fileName != null) {
				fileName.setText(fInstance.getName());
			}
			if (fileItems != null) {
				fileItems.setText(fInstance.getItemsData());
			}
			if (fileDate != null) {
				fileDate.setText(fInstance.getDate());
			}
		}
		return view;
	}
}

//--- FItemList
class FItem implements Comparable<FItem> {

	private String name;
	private String data;
	private String date;
	private String path;
	private int imageId;

	public FItem(String a_name, String a_data,
			String a_date, String a_path, int a_imageId) {
		name = a_name;
		data = a_data;
		date = a_date;
		path = a_path;
		imageId = a_imageId;
	}

	public String getName() {
		return name;
	}

	public String getItemsData() {
		return data;
	}

	public String getDate() {
		return date;
	}

	public String getPath() {
		return path;
	}

	public int getImageId() {
		return imageId;
	}

	@Override
	public int compareTo(FItem another) {
		if (this.name != null) {
			return this.name.toLowerCase().compareTo(another.getName().toLowerCase());
		} else {
			throw new IllegalArgumentException();
		}
	}
}