读取android项目assets目录下的txt文件.

InputStream is = ctx.getResources().getAssets().open("extra.txt");
InputStreamReader isReader = new InputStreamReader(is , "UTF-8");
BufferedReader bReader = new BufferedReader (isReader);
String mimeTypeLine = null ;
while((mimeTypeLine = bReader.readLine())!=null){
String [] mimeTypes = mimeTypeLine.trim().split(" ");
System.out.println(mimeTypes );

}