Android WebView上传的FileUtils工具类

最近在做个软件用到WebView的上传图片功能，很是头疼，只做到图片上传这块，无法支持拍照上传。

拜读了下大神的文章

http://blog.csdn.net/rnzuozuo/article/details/51496853

不过发现貌似FileUtils工具类没有贴出代码

于是地毯式搜索了一下这个工具类，最近发现一个可用的（经测试可用）的

来自http://blog.csdn.net/tian2342/article/details/41552779

package com.example.ebeauty;import java.io.BufferedOutputStream;import java.io.ByteArrayOutputStream;import java.io.File;import java.io.FileOutputStream;import java.io.IOException;import android.graphics.Bitmap;import android.graphics.Bitmap.CompressFormat;import android.graphics.Bitmap.Config;import android.graphics.BitmapFactory;import android.graphics.Matrix;import android.media.ExifInterface;import android.text.TextUtils;import android.util.Log;public class FileUtils {    /**     * 把图片压缩到200K     *      * @param oldpath     *            压缩前的图片路径     * @param newPath     *            压缩后的图片路径     * @return     */    /**     * 把图片压缩到200K     *      * @param oldpath     *            压缩前的图片路径     * @param newPath     *            压缩后的图片路径     * @return     */    public static File compressFile(String oldpath, String newPath) {        Bitmap compressBitmap = FileUtils.decodeFile(oldpath);        Bitmap newBitmap = ratingImage(oldpath, compressBitmap);        ByteArrayOutputStream os = new ByteArrayOutputStream();        newBitmap.compress(CompressFormat.PNG, 100, os);        byte[] bytes = os.toByteArray();                File file = null ;        try {            file = FileUtils.getFileFromBytes(bytes, newPath);        } catch (Exception e) {            e.printStackTrace();        }finally{            if(newBitmap != null ){                if(!newBitmap.isRecycled()){                    newBitmap.recycle();                }                newBitmap  = null;            }            if(compressBitmap != null ){                if(!compressBitmap.isRecycled()){                    compressBitmap.recycle();                }                compressBitmap  = null;            }        }        return file;    }        private static Bitmap ratingImage(String filePath,Bitmap bitmap){        int degree = readPictureDegree(filePath);        return rotaingImageView(degree, bitmap);    }        /**     *  旋转图片     * @param angle     * @param bitmap     * @return Bitmap     */    public static Bitmap rotaingImageView(int angle , Bitmap bitmap) {        //旋转图片 动作        Matrix matrix = new Matrix();;        matrix.postRotate(angle);        System.out.println("angle2=" + angle);        // 创建新的图片        Bitmap resizedBitmap = Bitmap.createBitmap(bitmap, 0, 0,                bitmap.getWidth(), bitmap.getHeight(), matrix, true);        return resizedBitmap;    }        /**     * 读取图片属性：旋转的角度     * @param path 图片绝对路径     * @return degree旋转的角度     */    public static int readPictureDegree(String path) {        int degree  = 0;        try {                ExifInterface exifInterface = new ExifInterface(path);                int orientation = exifInterface.getAttributeInt(ExifInterface.TAG_ORIENTATION, ExifInterface.ORIENTATION_NORMAL);                switch (orientation) {                case ExifInterface.ORIENTATION_ROTATE_90:                        degree = 90;                        break;                case ExifInterface.ORIENTATION_ROTATE_180:                        degree = 180;                        break;                case ExifInterface.ORIENTATION_ROTATE_270:                        degree = 270;                        break;                }        } catch (IOException e) {                e.printStackTrace();        }        return degree;    }    /**     * 把字节数组保存为一个文件     *      * @param b     * @param outputFile     * @return     */    public static File getFileFromBytes(byte[] b, String outputFile) {        File ret = null;        BufferedOutputStream stream = null;        try {            ret = new File(outputFile);            FileOutputStream fstream = new FileOutputStream(ret);            stream = new BufferedOutputStream(fstream);            stream.write(b);        } catch (Exception e) {            // log.error("helper:get file from byte process error!");            e.printStackTrace();        } finally {            if (stream != null) {                try {                    stream.close();                } catch (IOException e) {                    // log.error("helper:get file from byte process error!");                    e.printStackTrace();                }            }        }        return ret;    }    /**     * 图片压缩     *      * @param fPath     * @return     */    public static Bitmap decodeFile(String fPath) {        BitmapFactory.Options opts = new BitmapFactory.Options();        opts.inJustDecodeBounds = true;        opts.inDither = false; // Disable Dithering mode        opts.inPurgeable = true; // Tell to gc that whether it needs free        opts.inInputShareable = true; // Which kind of reference will be used to        BitmapFactory.decodeFile(fPath, opts);        final int REQUIRED_SIZE = 200;        int scale = 1;        if (opts.outHeight > REQUIRED_SIZE || opts.outWidth > REQUIRED_SIZE) {            final int heightRatio = Math.round((float) opts.outHeight                    / (float) REQUIRED_SIZE);            final int widthRatio = Math.round((float) opts.outWidth                    / (float) REQUIRED_SIZE);            scale = heightRatio < widthRatio ? heightRatio : widthRatio;//        }        Log.i("scale", "scal ="+ scale);        opts.inJustDecodeBounds = false;        opts.inSampleSize = scale;        Bitmap bm = BitmapFactory.decodeFile(fPath, opts).copy(Config.ARGB_8888, false);        return bm;    }                /**     * 创建目录     * @param path     */    public static void setMkdir(String path)    {        File file = new File(path);        if(!file.exists())        {            file.mkdirs();            Log.e("file", "目录不存在  创建目录    ");        }else{            Log.e("file", "目录存在");        }    }        /**     * 获取目录名称     * @param url     * @return FileName     */    public static String getFileName(String url)    {        int lastIndexStart = url.lastIndexOf("/");        if(lastIndexStart!=-1)        {            return url.substring(lastIndexStart+1, url.length());        }else{            return null;        }    }        /**     * 删除该目录下的文件     *      * @param path     */    public static void delFile(String path) {        if (!TextUtils.isEmpty(path)) {            File file = new File(path);            if (file.exists()) {                file.delete();            }        }    }}