android studio 读取assets目录文件

Eclipse:

getResource().getAssets().open("bs.db")

Ａndroid　studio：　context.getClass().getClassLoader().getResourceAsStream("assets/bs.db");
public void copyFilesFassets(Context context, String newPath) {
    try {
        // 如果是文件
        InputStream is = context.getClass().getClassLoader().getResourceAsStream("assets/bs.db");
        FileOutputStream fos = new FileOutputStream(new File(newPath));
        byte[] buffer = new byte[1024];
        int byteCount = 0;
        while ((byteCount = is.read(buffer)) != -1) {// 循环从输入流读取 buffer字节
            fos.write(buffer, 0, byteCount);// 将读取的输入流写入到输出流
        }
        fos.flush();// 刷新缓冲区
        is.close();
        fos.close();

    } catch (Exception e) {
        e.printStackTrace();

    }
}