一个简单易用的记帐本APP，包含了如下功能：

1. 当日支出记账，当日收入记账功能，收入和支持分别有不同的可选类别
2. 显示出某月的支出时间轴，简单直观的看出钱都花到了哪里
3. 对于历史收入和支出的记账信息进行编辑和删除
4. 使用饼状图按照不同的分类显示某月收入的来源
5. 使用饼状图按照不同的分类显示某月的支出的去向
6. 使用折线图来显示某年中每个月支出的钱数，直观的展现哪个月花钱最多
7. 等其他相关功能

使用sqlite数据库进行数据存储，使用了简单高效的查询sql对数据库进行处理，获得更好的查询效率。

minSdkVersion 15

This is a easy-to-use money management APP, includes some features:

1. Expenditure and income on that day. expenditure and income have different types of classification.
2. Showing expenditure of one month by timeline, so it's show where their money goes intuitively.
3. Providing edit and delete function for historical Expenditure and income.
4. Using pie chart to showing one month income by different type.
5. Using pie chart to showing one month expenditure by different type.
6. Using line chart to showing expenditure of every month in one year, showing Which month spending the most intuitively.
7. and some other functions

Using Sqlite to store data in the APP, and using easy and efficient sql to query in database for better query performance.