Android File to Byte Array Read getAvailableBytes(File root)

Description

get Available Bytes

License

Apache License

Return

the number of bytes available on the filesystem rooted at the given File

Declaration

public static long getAvailableBytes(File root) 

Method Source Code

//package com.java2s;
/*/*from  w  w w.j  a va2 s. c o m*/
 * Copyright (C) 2012 The Android Open Source Project
 *
 * 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 android.os.StatFs;

import java.io.File;

public class Main {
    /**
     * @return the number of bytes available on the filesystem rooted at the
     *         given File
     */
    public static long getAvailableBytes(File root) {
        StatFs stat = new StatFs(root.getPath());
        // put a bit of margin (in case creating the file grows the system by a
        // few blocks)
        long availableBlocks = (long) stat.getAvailableBlocks() - 4;
        return stat.getBlockSize() * availableBlocks;
    }
}

Related

1. buildDataFromFile(String path, int bufferSize)
2. file2byte(File file)
3. file2byte(String path)
4. getByteFromFile(String fileName)
5. getAvailableBytes(File root)
6. getByteArrayFromSD(String path)