Android：如何读取字节文件？

这很简单：

File file = new File(path);int size = (int) file.length();byte[] bytes = new byte[size];try {    BufferedInputStream buf = new BufferedInputStream(new FileInputStream(file));    buf.read(bytes, 0, bytes.length);    buf.close();} catch (FileNotFoundException e) {    // TODO Auto-generated catch block    e.printStackTrace();} catch (IOException e) {    // TODO Auto-generated catch block    e.printStackTrace();}

在manifest.xml中添加权限：

 <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />