重訓組數紀錄

#Retraining Record App

This is an Android App specially designed for heavy training enthusiasts, providing a convenient and intuitive way to record daily training content. Through a simple UI and complete data management, it helps users effectively track their training process and progress records.

## Features

- Record daily heavy training content (parts/actions/number of sets/weight)
- Use Sectioned RecyclerView to present clearly classified training data
- Can customize and manage parts and actions
- Weight can support decimal point for more accurate recording
- Calendar management, quickly check which days have training records
- Data is exported as JSON backup, which can be saved to the download folder or shared to other platforms
- Data import function to quickly restore past records
- Switchable bright color mode, visual refreshing and consistent

## Usage context

1. Quickly record each training session: select parts, movements, weight and number of sets
2. Customize your commonly used training programs
3. You can quickly check whether you have exercise every day through the calendar
4. Back up your data regularly to preserve your growth trajectory
5. Data can be exported and shared at any time or restored after changing devices.

## Future planning

- Cloud sync backup (Google Drive/Firebase)
- Action statistical analysis chart
- More complete training cycle suggestions and reminders
- Customize themes and color styles

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This description is suitable as an "app description" for the Play Store and can be placed in the app introduction or update log.

Do you want me to produce an English version or a short version for the Play Store? I can also organize it directly!