after several twists and turns, the  apk  file is finally packaged through  cordova . However, when it is installed on the phone, it is found that a blank page is displayed. 
 for a long time, I unzipped the apk and opened the  assets\ www  under the  index.html  file, and found two problems: 
- 
The js file referenced in index.htmldoes not match the packaged filehash(mainly because part of the js file hash does not match);
- 
The css and js referenced in index.htmlare repeated (twice);
 formatted index.html: 
 
npm run buildindex.htmlcssjs apk~~~
:
:apkcordova serve androidhttp://localhost:8000/android/www/index.htmlandroid
:appcssjs...
 
 
