Converts a byte-magnitude file size into a string - Android java.io

Android examples for java.io:File Size

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Description

Converts a byte-magnitude file size into a string

Demo Code

import android.util.Log;
import java.util.Locale;

public class Main{

    /**//from w  ww. j av  a2  s  .c  o  m
     * Converts a byte-magnitude file size into a string
     * @param size File size in bytes
     * @return Human readable file size string
     */
    public static String sizeString(int size) {
        float value = (float) size;
        int magnitude = 0;

        while (value > 1000f && magnitude < 3) {
            value = value / 1024f;
            magnitude++;
        }

        String string = String.format(Locale.getDefault(), "%.1f", value);
        switch (magnitude) {
        default:
            string = string.concat("B");
            break;
        case 0:
            string = string.concat("B");
            break;
        case 1:
            string = string.concat("kB");
            break;
        case 2:
            string = string.concat("MB");
            break;
        case 3:
            string = string.concat("GB");
            break;
        }
        return string;
    }

}

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