读取资源文件最好了，比如地区，放在apk进行一起打包读取。比如放在raw目录
别用String去+ 这样会浪费内存，就用stringbuilder最好
public String getRawFile() {
InputStream is = BaseApplication.getInstance().getApplication().getResources().openRawResource(R.raw.area);
InputStreamReader isr = new InputStreamReader(is);
StringBuilder result = new StringBuilder();
BufferedReader bufferedReader = new BufferedReader(isr);
String line = "";
try {
while ((line = bufferedReader.readLine()) != null) {
result.append(line);
}
return result.toString();
} catch (Exception e) {
e.printStackTrace();
}
return "";
}
