Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/*
 * Copyright (C) 2008 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 java.io.File;

import android.annotation.SuppressLint;

import android.os.StatFs;

public class Main {
    /**
     * @return the number of bytes available on the filesystem rooted at the
     *         given File
     */
    @SuppressLint("NewApi")
    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)
        if (android.os.Build.VERSION.SDK_INT < 18) {
            long availableBlocks = (long) stat.getAvailableBlocks() - 4;

            return stat.getBlockSize() * availableBlocks;
        } else {
            long availableBlocks = (long) stat.getAvailableBlocksLong() - 4;
            return stat.getBlockSizeLong() * availableBlocks;
        }
    }
}