Abstract
Weather is an open-source Mobile App Development project. A privacy friendly weather app for Android with built in rain radar. OpenWeatherMap has announced that access to One Call 2.5 will be discontinued in June 2024. While the app is compatible with One Call 3.0, the subscription requires a credit card, even though no payments will be charged due to the 1000 free daily calls. It is built using Java, Android. The complete source code is publicly available on GitHub under the GNU General Public License v3.0, making it a useful reference for students building a Mobile App Development mini project or final-year project.
1. Introduction
OpenWeatherMap has announced that access to One Call 2.5 will be discontinued in June 2024. While the app is compatible with One Call 3.0, the subscription requires a credit card, even though no payments will be charged due to the 1000 free daily calls. I recommend transitioning to my Cirrus app, which utilizes data from Open-Meteo, as I believe it offers superior information.
This application is forked from Privacy Friendly Weather (https://github.com/SecUSo/privacy-friendly-weather) a privacy friendly weather app. The original function has been modified to support the new OpenWeather One Call API, which provides a lot more features, like precipitation forecast for the next 60 minutes, hourly forecasts for the next 2 days, 8 day week forecasts, etc. In addition a rain radar functionality powered by RainViewer API (https://www.rainviewer.com/api.html) has been added. More weather categories were added, most images and icons were replaced. RadiusSearch now also shows the results on a map with weather icons. A chart showing forecasts with min/max temperature and precipitation for the next week has been added. In addition to the built in city list it is now also possible to use search-as-you-type location search via the photon API (https://photon.komoot.io) which is based on OpenStreetMap.
As One Call API only allows 1000 free calls per day an own OpenWeatherMap API key is mandatory.
2. Objective
A privacy friendly weather app for Android with built in rain radar
This project demonstrates how Java, Android can be applied to a real-world Mobile App Development problem.
4. Technology Stack
5. System Requirements
General requirements for this technology stack — check the README for exact versions.
- JDK 11 or later
- Maven / Gradle
- IntelliJ IDEA, Eclipse or Android Studio
- Git (to clone the repository)
6. Installation & Setup
git clone https://github.com/woheller69/weather.git
cd weatherFull setup instructions are in the project README.
7. Future Enhancements
Suggested extensions you can add to make this your own project.
- Add push notifications with Firebase Cloud Messaging
- Add offline support with local caching
- Publish an internal test build on the Play Store
8. Viva / Review Questions
Common questions examiners ask for projects in this domain.
- Which framework is used and why (native vs cross-platform)?
- How is app state managed across screens?
- Where is the data stored — locally, Firebase or a REST backend?
- How are permissions (camera, location, storage) handled?
- How would you publish this app to the Play Store / App Store?
9. Source Code & License
This project is developed by woheller69 and published on GitHub under the GNU General Public License v3.0. Please follow the license terms and credit the original author when you use or modify this code.
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