scaleImage(Bitmap org, float scaleWidth, float scaleHeight) 缩放图片

package cn.trinea.android.common.util;

import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.Map;

import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Matrix;
import android.graphics.drawable.BitmapDrawable;
import android.graphics.drawable.Drawable;

/**
 * ImageUtils
 * <ul>
 * convert between Bitmap, byte array, Drawable
 * <li>{@link #bitmapToByte(Bitmap)}</li>
 * <li>{@link #bitmapToDrawable(Bitmap)}</li>
 * <li>{@link #byteToBitmap(byte[])}</li>
 * <li>{@link #byteToDrawable(byte[])}</li>
 * <li>{@link #drawableToBitmap(Drawable)}</li>
 * <li>{@link #drawableToByte(Drawable)}</li>
 * </ul>
 * <ul>
 * get image
 * <li>{@link #getInputStreamFromUrl(String, int)}</li>
 * <li>{@link #getBitmapFromUrl(String, int)}</li>
 * <li>{@link #getDrawableFromUrl(String, int)}</li>
 * </ul>
 * <ul>
 * scale image
 * <li>{@link #scaleImageTo(Bitmap, int, int)}</li>
 * <li>{@link #scaleImage(Bitmap, float, float)}</li>
 * </ul>
 * 
 * @author <a href=http://www.mamicode.com/"http://www.trinea.cn" target="_blank">Trinea 2012-6-27>


android 图片处理工具类