Android中保存普通图片和gif图片到手机上

//保存gif图片
 new Thread(new Runnable() {
                    @Override
                    public void run() {
                        try {
                            Utils.saveGifFile(origUrl);
                           
                        } catch (IOException e) {
                            
                            e.printStackTrace();
                        }
                    }
                }).start();


//保存普通图片

 new Thread(new Runnable() {
                    @Override
                    public void run() {
                        try {
                            Utils.saveFile(bitmap,String.valueOf(System.currentTimeMillis()));
                            Message msg = handler.obtainMessage(PICTURE_SAVE_SUCCESS);
                            handler.sendMessage(msg);
                        } catch (IOException e) {
                            Message msg = handler.obtainMessage(PICTURE_SAVE_FALSE);
                            handler.sendMessage(msg);
                            e.printStackTrace();
                        }
                    }
                }).start();

  public final static String SAVE_PIC_PATH = Environment.getExternalStorageState().equalsIgnoreCase(Environment.MEDIA_MOUNTED) ? Environment.getExternalStorageDirectory().getAbsolutePath() : "/mnt/sdcard";//保存到SD卡
    public final static String SAVE_REAL_PATH = SAVE_PIC_PATH + "/mker_picture";//保存图片的确切位置


    /**
     * 保存普通图片文件
     *
     * @param bm
     * @param fileName
     * @throws IOException
     */
    public static void saveFile(Bitmap bm, String fileName) throws IOException {
        File directoryFile = new File(Constant.SAVE_REAL_PATH);
        if (!directoryFile.exists()) {
            directoryFile.mkdirs();
        }
        File myCaptureFile = new File(directoryFile, fileName);
        if (!myCaptureFile.exists()) {
            myCaptureFile.createNewFile();
        }
        //new FileOutputStream(myCaptureFile) 获取要保存到的文件的文件流
        BufferedOutputStream bos = new BufferedOutputStream(new FileOutputStream(myCaptureFile));
        bm.compress(Bitmap.CompressFormat.JPEG, 80, bos);//把图片压缩成jpeg格式的
        bos.flush();//刷新流
        bos.close();
    }

    /**
     * 保存gif图片文件
     *
     * @param oldPath
     * @throws IOException
     */
    public static void saveGifFile(String oldPath) throws IOException {
        File directoryFile = new File(Constant.SAVE_REAL_PATH);
        if (!directoryFile.exists()) {
            directoryFile.mkdirs();
        }
        File newFile = new File(directoryFile, String.valueOf(System.currentTimeMillis()) + ".gif");
        if (!newFile.exists()) {
            newFile.createNewFile();
        }
        String newPath = newFile.getPath();
        int bytesum = 0;
        int byteread = 0;
        File oldfile = new File(oldPath);
        if (oldfile.exists()) { //文件存在时
            InputStream inStream = new FileInputStream(oldPath); //读入原文件
            FileOutputStream fs = new FileOutputStream(newPath);
            byte[] buffer = new byte[1444];
            int length;
            while ((byteread = inStream.read(buffer)) != -1) {
                bytesum += byteread; //字节数 文件大小
                System.out.println(bytesum);
                fs.write(buffer, 0, byteread);
            }
            inStream.close();
        }
    }