Mega Code Archive
Bitmap downloading, processing
<![CDATA[
/*
* Copyright 2011 Dmitry S. Vorobiev
*
* 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.
*/
//package com.litecoding.classkit.util;
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.URL;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.util.Log;
/**
* This class contains utils for Bitmap downloading, processing etc.
*
* @author Dmitry S. Vorobiev
*
*/
public class BitmapUtils
{
public static int IO_BUFFER_SIZE = 1024 * 1024;
/**
* Downloads image and creates a Bitmap object
* @param url URL of image to be downloaded
* @return downloaded bitmap or null if error occurred
*/
public static Bitmap loadBitmapFromUrl(String url)
{
Bitmap bitmap = null;
try
{
bitmap = loadBitmapFromUrl(new URL(url));
}
catch(Exception e)
{
}
return bitmap;
}
/**
* Downloads image and creates a Bitmap object
* @param url URL of image to be downloaded
* @return downloaded bitmap or null if error occurred
*/
public static Bitmap loadBitmapFromUrl(URL url)
{
Bitmap bitmap = null;
InputStream in = null;
BufferedOutputStream out = null;
try {
in = new BufferedInputStream(url.openStream(), IO_BUFFER_SIZE);
final ByteArrayOutputStream dataStream = new ByteArrayOutputStream();
out = new BufferedOutputStream(dataStream, IO_BUFFER_SIZE);
byte[] buf = new byte[1024];
while(in.available() > 0)
{
int cntBytes = in.read(buf);
out.write(buf, 0, cntBytes);
}
out.flush();
final byte[] data = dataStream.toByteArray();
BitmapFactory.Options options = new BitmapFactory.Options();
//options.inSampleSize = 1;
bitmap = BitmapFactory.decodeByteArray(data, 0, data.length,options);
}
catch (IOException e)
{
}
finally
{
try
{
in.close();
out.close();
}
catch(IOException e)
{
}
}
return bitmap;
}
}
]]>