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女神记账本

哈工大(深圳)2020秋软件工程项目——记账APP

架构和技术

架构使用了 Google 官方的 Architecture Components,包括 Lifecycle、LiveData 和 ViewModel,数据库使用 Room

Architecture Components 这里有一篇介绍 Architecture Components 的文章

Room 和 RxJava 配合起来使用真的很方便。

@Query("SELECT * FROM record")
Flowable<List<Record>> getRecords();

Room 返回的数据使用 Flowable 包装,并且使用 ViewModel 在 Activity 中被观察,当数据库中 record 表发生改变时,不需要手动更新 View,ViewModel 会自动触发回调。

比如,列表界面展示record 表的所有数据,我们在详情界面中修改了record 表中的某一条数据,列表界面会自动回调数据改变的方法,而不用我们去手动再次请求record 表的所有数据来刷新界面。

相关链接:

  1. App下载地址: https://www.coolapk.com/apk/188475
  2. 设计稿: https://www.zcool.com.cn/work/ZMjExOTI4OTY=.html
  3. Architecture Components: https://developer.android.com/topic/libraries/architecture/
  4. Room: https://developer.android.com/topic/libraries/architecture/room

License

Copyright 2018 Bakumon. https://github.com/Bakumon

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

   http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
 limitations under the License.

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