Android（JetPack）学习(12）Room2

概述Room2viewmodel向后一步，设立仓库RepositorystaticclassInsertTaskextendsAsyncTask<Word,Void,Void>{privateWordDaowordDao;publicInsertTask(WordDaowordDao){this.wordDao=wordDao;}@Override

Room2

viewmodel向后一步，设立仓库Repository

static class InsertTask extends AsyncTask<Word,VoID,VoID>{        private WordDao wordDao;        public InsertTask(WordDao wordDao) {            this.wordDao = wordDao;        }        @OverrIDe        protected VoID doInBackground(Word... words) {            wordDao.insertW(words);            return null;        }    }    static class UpdateTask extends AsyncTask<Word,VoID,VoID>{        private WordDao wordDao;        public UpdateTask(WordDao wordDao) {            this.wordDao = wordDao;        }        @OverrIDe        protected VoID doInBackground(Word... words) {            wordDao.updateW(words);            return null;        }    }    static class DeleteTask extends AsyncTask<Word,VoID,VoID> {        private WordDao wordDao;        public DeleteTask(WordDao wordDao) {            this.wordDao = wordDao;        }        @OverrIDe        protected VoID doInBackground(Word... words) {            wordDao.deleteW(words);            return null;        }    }    static class DeleteallTask extends AsyncTask<VoID,VoID,VoID> {        private WordDao wordDao;        public DeleteallTask(WordDao wordDao) {            this.wordDao = wordDao;        }        @OverrIDe        protected VoID doInBackground(VoID...VoID) {            wordDao.deletealLW();            return null;        }    }

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