Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/*
 * This file is part of Butter.
 *
 * Butter 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 3 of the License, or
 * (at your option) any later version.
 *
 * Butter 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 Butter. If not, see <http://www.gnu.org/licenses/>.
 */

import android.content.Context;
import android.os.Environment;
import android.os.StatFs;
import java.io.File;

public class Main {
    /**
     * Get ideal cache directory based on available
     *
     * @return Ideal file location for caching
     */
    public static File getIdealCacheDirectory(Context context) {
        File externalCacheDir = context.getExternalCacheDir();
        if (getTotalExternalMemorySize() < getTotalInternalMemorySize() || externalCacheDir == null) {
            return context.getCacheDir();
        }
        return externalCacheDir;
    }

    /**
     * @return Total external memory
     */
    public static int getTotalExternalMemorySize() {
        if (isExternalStorageAvailable()) {
            File path = Environment.getExternalStorageDirectory();
            StatFs stat = new StatFs(path.getPath());
            int blockSize = stat.getBlockSize();
            int totalBlocks = stat.getBlockCount();
            return totalBlocks * blockSize;
        } else {
            return 0;
        }
    }

    /**
     * @return Total internal memory
     */
    public static int getTotalInternalMemorySize() {
        File path = Environment.getDataDirectory();
        StatFs stat = new StatFs(path.getPath());
        int blockSize = stat.getBlockSize();
        int totalBlocks = stat.getBlockCount();
        return totalBlocks * blockSize;
    }

    /**
     * @return {@code true} if external storage is available and writable. {@code false} otherwise.
     */
    public static boolean isExternalStorageAvailable() {
        String state = Environment.getExternalStorageState();
        if (Environment.MEDIA_MOUNTED.equals(state)) {
            return true;
        }
        return false;
    }
}