com.dnielfe.manager.adapters.BrowserListAdapter.java Source code

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Here is the source code for com.dnielfe.manager.adapters.BrowserListAdapter.java

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/*
 * Copyright (C) 2014 Simple Explorer
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
 * MA  02110-1301, USA.
 */

package com.dnielfe.manager.adapters;

import java.io.File;
import java.text.DateFormat;
import java.util.ArrayList;
import java.util.Locale;

import org.apache.commons.io.FileUtils;
import org.apache.commons.io.FilenameUtils;
import org.jetbrains.annotations.NotNull;

import com.dnielfe.manager.R;
import com.dnielfe.manager.preview.DrawableLruCache;
import com.dnielfe.manager.preview.IconPreview;
import com.dnielfe.manager.preview.MimeTypes;
import com.dnielfe.manager.settings.Settings;

import android.content.Context;
import android.content.res.Resources;
import android.graphics.drawable.Drawable;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.ImageView;
import android.widget.TextView;

public class BrowserListAdapter extends ArrayAdapter<String> {
    private Context mContext;
    private Resources mResources;
    private ArrayList<String> mDataSource;

    private DrawableLruCache<String> mMimeTypeIconCache;

    public BrowserListAdapter(@NotNull final Context context, ArrayList<String> data) {
        super(context, R.layout.item_browserlist, data);

        this.mContext = context;
        this.mDataSource = data;
        this.mResources = context.getResources();

        if (mMimeTypeIconCache == null) {
            mMimeTypeIconCache = new DrawableLruCache<String>();
        }
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        final ViewHolder mViewHolder;
        int num_items = 0;
        final File file = new File(getItem(position));
        DateFormat df = DateFormat.getDateTimeInstance(DateFormat.SHORT, DateFormat.SHORT, Locale.getDefault());

        if (convertView == null) {
            LayoutInflater inflater = (LayoutInflater) mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
            convertView = inflater.inflate(R.layout.item_browserlist, parent, false);
            mViewHolder = new ViewHolder(convertView);
            convertView.setTag(mViewHolder);
        } else {
            mViewHolder = (ViewHolder) convertView.getTag();
        }

        if (Settings.mListAppearance > 0) {
            mViewHolder.dateview.setVisibility(TextView.VISIBLE);
        } else {
            mViewHolder.dateview.setVisibility(TextView.GONE);
        }

        if (Settings.showthumbnail)
            setIcon(file, mViewHolder.icon);
        else
            loadFromRes(file, mViewHolder.icon);

        if (file.isFile()) {
            // Shows the size of File
            mViewHolder.bottomView.setText(FileUtils.byteCountToDisplaySize(file.length()));
        } else {
            String[] list = file.list();

            if (list != null)
                num_items = list.length;

            // show the number of files in Folder
            mViewHolder.bottomView.setText(num_items + mResources.getString(R.string.files));
        }

        mViewHolder.topView.setText(file.getName());
        mViewHolder.dateview.setText(df.format(file.lastModified()));

        return convertView;
    }

    @Override
    public String getItem(int pos) {
        return mDataSource.get(pos);
    }

    private final void setIcon(final File file, final ImageView icon) {
        final boolean isImage = MimeTypes.isPicture(file);
        final boolean isVideo = MimeTypes.isVideo(file);
        final boolean isApk = file.getName().endsWith(".apk");

        // you can set a placeholder
        // IconPreview.INSTANCE.setPlaceholder(bitmap);
        if (isImage || isVideo) {
            icon.setTag(file.getAbsolutePath());
            IconPreview.INSTANCE.loadBitmap(file, icon);
        } else if (isApk) {
            icon.setTag(file.getAbsolutePath());
            IconPreview.INSTANCE.loadApk(file, icon, mContext);
        } else {
            loadFromRes(file, icon);
        }
    }

    private void loadFromRes(final File file, final ImageView icon) {
        Drawable mimeIcon = null;

        if (file != null && file.isDirectory()) {
            if (file.canRead() && file.list().length > 0)
                mimeIcon = mResources.getDrawable(R.drawable.type_folder);
            else
                mimeIcon = mResources.getDrawable(R.drawable.type_folder_empty);
        } else {
            final String fileExt = FilenameUtils.getExtension(file.getName());
            mimeIcon = mMimeTypeIconCache.get(fileExt);

            if (mimeIcon == null) {
                final int mimeIconId = MimeTypes.getIconForExt(fileExt);
                if (mimeIconId != 0) {
                    mimeIcon = mResources.getDrawable(mimeIconId);
                    mMimeTypeIconCache.put(fileExt, mimeIcon);
                }
            }
        }

        if (mimeIcon != null) {
            icon.setImageDrawable(mimeIcon);
        } else {
            // default icon
            icon.setImageResource(R.drawable.type_unknown);
        }
    }

    private static class ViewHolder {
        TextView topView;
        TextView bottomView;
        TextView dateview;
        ImageView icon;

        ViewHolder(View view) {
            topView = (TextView) view.findViewById(R.id.top_view);
            bottomView = (TextView) view.findViewById(R.id.bottom_view);
            dateview = (TextView) view.findViewById(R.id.dateview);
            icon = (ImageView) view.findViewById(R.id.row_image);
        }
    }
}