Android Directory Size Get sizeOf(File spec)

Description

Gets the size of a file or directory, in bytes.

License

Apache License

Parameter

Parameter	Description
spec	the file or directory whose size is requested.

Return

the size of the file or directory.

Declaration

public static long sizeOf(File spec) 

Method Source Code

/*/*from ww  w .j ava 2s .  c o  m*/
Copyright 2008 Flaptor (flaptor.com) 

Licensed under the Apache License, Version 2.0 (the "License"); 
you may not use this file except in compliance with the License. 
You may obtain a copy of the License at 

    http://www.apache.org/licenses/LICENSE-2.0 

Unless required by applicable law or agreed to in writing, software 
distributed under the License is distributed on an "AS IS" BASIS, 
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 
See the License for the specific language governing permissions and 
limitations under the License.
 */

import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.io.Writer;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.Set;
import java.util.zip.CRC32;
import java.util.zip.Checksum;
import org.apache.log4j.Logger;

public class Main{
    /**
     * Gets the size of a file or directory, in bytes.
     * This method is needed because the File.length() 
     * method is not defined for directories.
     * @param spec the file or directory whose size is requested.
     * @return the size of the file or directory.
     */
    public static long sizeOf(File spec) {
        long size = 0;
        if (spec.isDirectory()) {
            String[] children = spec.list();
            for (int i = 0; i < children.length; i++) {
                size += sizeOf(new File(spec, children[i]));
            }
        } else {
            size = spec.length();
        }
        return size;
    }
}

Related

1. folderSize(File directory)
2. getDirLength(File dir)
3. sizeOfDirectory(File directory)
4. getDirectorySize(File f)