public class ReadBitmap {

	public void readByte(Context c, String name, int indexInt) {

		byte[] b = null;

		int[] intArrat = c.getResources().getIntArray(indexInt);

		try {

			AssetManager am = null;

			am = c.getAssets();

			InputStream is = am.open(name);

			for (int i = 0; i < intArrat.length; i++) {

				b = new byte[intArrat[i]];

				// 读取数据

				is.read(b);

				saveMyBitmap(Bytes2Bimap(b), MainActivity.DIR+name+i+".jpg");

			}

			is.close();

		} catch (IOException e) {

			e.printStackTrace();

		}

	}

	public static Bitmap Bytes2Bimap(byte[] b) {

		if (b.length != 0) {

			return BitmapFactory.decodeByteArray(b, 0, b.length);

		} else {

			return null;

		}

	}

	public static boolean saveMyBitmap(Bitmap bmp, String path) {

		File f = new File(path);

		try {

			f.createNewFile();

			FileOutputStream fOut = new FileOutputStream(f);

			bmp.compress(Bitmap.CompressFormat.JPEG, 100, fOut);

			fOut.flush();

			fOut.close();

			return true;

		} catch (Exception e) {

			// TODO: handle exception

			e.printStackTrace();

		}

		return false;

	}

}