Here you can find the source of compressToBytes(Bitmap bitmap, int quality)
public static byte[] compressToBytes(Bitmap bitmap, int quality)
//package com.java2s; /*/*from w ww . j a v a 2 s.co m*/ * Copyright (C) 2010 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.graphics.Bitmap; import android.graphics.Bitmap.CompressFormat; import java.io.ByteArrayOutputStream; public class Main { private static final int DEFAULT_JPEG_QUALITY = 90; public static byte[] compressToBytes(Bitmap bitmap) { return compressToBytes(bitmap, DEFAULT_JPEG_QUALITY); } public static byte[] compressToBytes(Bitmap bitmap, int quality) { ByteArrayOutputStream baos = new ByteArrayOutputStream(65536); bitmap.compress(CompressFormat.JPEG, quality, baos); return baos.toByteArray(); } }