Looks through the byte array and calculates size of the Bitmap picture inside it. - Android Graphics

Android examples for Graphics:Bitmap Byte Array

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Description

Looks through the byte array and calculates size of the Bitmap picture inside it.

Demo Code

/*//from   w w  w .j ava2s  .c om
 * The MIT License Copyright (c) 2014 Krayushkin Konstantin (jangokvk@gmail.com)
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software and
 * associated documentation files (the "Software"), to deal in the Software without restriction,
 * including without limitation the rights to use, copy, modify, merge, publish, distribute,
 * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all copies or
 * substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT
 * NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */
//package com.book2s;

import android.graphics.BitmapFactory;

import android.graphics.Point;

public class Main {
    /**
     * Looks through the byte array and calculates size of the picture inside it. Operation is very
     * fast, as no actual decoding will be done.
     */
    public static Point extractSize(byte[] data) {
        final BitmapFactory.Options ops = new BitmapFactory.Options();
        ops.inJustDecodeBounds = true;
        BitmapFactory.decodeByteArray(data, 0, data.length, ops);

        return new Point(ops.outWidth, ops.outHeight);
    }
}

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