android：保存bit地图

直接看代码吧：

/**	 * 保存图片	 * @param mSignBitmap	 * @param _path 图片保存路径	 * @return	 */	public static boolean createFile(Bitmap mSignBitmap,String _path) {		ByteArrayOutputStream baos = null;		try {			baos = new ByteArrayOutputStream();			mSignBitmap.compress(Bitmap.CompressFormat.JPEG, 100, baos);			byte[] photoBytes = baos.toByteArray();			if (photoBytes != null) {				new FileOutputStream(new File(_path)).write(photoBytes);			}			return true;		} catch (IOException e) {			e.printStackTrace();		} finally {			try {				if (baos != null)					baos.close();			} catch (IOException e) {				e.printStackTrace();			}		}		return false;	}

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