# mehdialomer/newsapp architecture

> Architecture diagram of the GitHub repository mehdialomer/newsapp, generated by GitDiagram from its file tree, README and a sample of source files (last updated 2026-09-30). It is an AI-made overview: check details against the source.

- Interactive diagram: https://gitdiagram.com/mehdialomer/newsapp
- Repository: https://github.com/mehdialomer/newsapp

## Overview

NewsApp is an Android news reader: users explore news fetched from NewsAPI, browse it in a list, search or filter it, open article details, and save favorites. The README documents Retrofit, RecyclerView, WebView, and Room/SQLite, but the supplied source excerpts contain no app implementation, so component ownership and internal calls cannot be verified. The graph captures documented capabilities; links use the README as evidence and should be read as documented behavior, not inspected call flow.

Main entry points: [`app/src/main/java/com/example/newsapp/ui/home/MainActivity.java`](https://github.com/mehdialomer/newsapp/blob/main/app/src/main/java/com/example/newsapp/ui/home/MainActivity.java) (News app), [`app/src/main/java/com/example/newsapp/data/repository/NewsRepository.java`](https://github.com/mehdialomer/newsapp/blob/main/app/src/main/java/com/example/newsapp/data/repository/NewsRepository.java) (Favorites), [`app/src/main/java/com/example/newsapp/network/RetrofitClient.java`](https://github.com/mehdialomer/newsapp/blob/main/app/src/main/java/com/example/newsapp/network/RetrofitClient.java) (Retrofit client), [`app/src/main/java/com/example/newsapp/network/NewsApiService.java`](https://github.com/mehdialomer/newsapp/blob/main/app/src/main/java/com/example/newsapp/network/NewsApiService.java) (News API service)

## Diagram (Mermaid)

```mermaid
flowchart TD

subgraph group_experience["News experience"]
  node_app["News app<br/>[MainActivity.java]"]
  node_list["News list<br/>[NewsAdapter.java]"]
  node_search["Search and filter<br/>[MainActivity.java]"]
  node_details["Article details<br/>[MainActivity.java]"]
end

subgraph group_data["News data"]
  node_favorites["Favorites"]
  node_localstore[("Local favorites store")]
  node_repository["News repository"]
  node_retrofit["Retrofit client"]
  node_api["News API service"]
end

subgraph group_external["External services"]
  node_newsapi["NewsAPI"]
end

node_reader(("Reader"))

node_reader -->|"explores news"| node_app
node_app -->|"fetches news"| node_repository
node_repository -->|"uses Retrofit"| node_retrofit
node_retrofit -->|"makes API calls"| node_api
node_api -->|"requests news"| node_newsapi
node_app -->|"displays articles"| node_list
node_reader -->|"searches news"| node_search
node_reader -->|"opens articles"| node_details
node_reader -->|"saves articles"| node_favorites
node_favorites -->|"stores favorites"| node_localstore

click node_app "https://github.com/mehdialomer/newsapp/blob/main/app/src/main/java/com/example/newsapp/ui/home/MainActivity.java"
click node_list "https://github.com/mehdialomer/newsapp/blob/main/app/src/main/java/com/example/newsapp/adapter/NewsAdapter.java"
click node_search "https://github.com/mehdialomer/newsapp/blob/main/app/src/main/java/com/example/newsapp/ui/home/MainActivity.java"
click node_details "https://github.com/mehdialomer/newsapp/blob/main/app/src/main/java/com/example/newsapp/ui/home/MainActivity.java"
click node_favorites "https://github.com/mehdialomer/newsapp/blob/main/app/src/main/java/com/example/newsapp/data/repository/NewsRepository.java"
click node_localstore "https://github.com/mehdialomer/newsapp/blob/main/app/src/main/java/com/example/newsapp/data/repository/NewsRepository.java"
click node_repository "https://github.com/mehdialomer/newsapp/blob/main/app/src/main/java/com/example/newsapp/data/repository/NewsRepository.java"
click node_retrofit "https://github.com/mehdialomer/newsapp/blob/main/app/src/main/java/com/example/newsapp/network/RetrofitClient.java"
click node_api "https://github.com/mehdialomer/newsapp/blob/main/app/src/main/java/com/example/newsapp/network/NewsApiService.java"

classDef toneNeutral fill:#f8fafc,stroke:#334155,stroke-width:1.5px,color:#0f172a
classDef toneBlue fill:#dbeafe,stroke:#2563eb,stroke-width:1.5px,color:#172554
classDef toneAmber fill:#fef3c7,stroke:#d97706,stroke-width:1.5px,color:#78350f
classDef toneMint fill:#dcfce7,stroke:#16a34a,stroke-width:1.5px,color:#14532d
classDef toneRose fill:#ffe4e6,stroke:#e11d48,stroke-width:1.5px,color:#881337
classDef toneIndigo fill:#e0e7ff,stroke:#4f46e5,stroke-width:1.5px,color:#312e81
classDef toneTeal fill:#ccfbf1,stroke:#0f766e,stroke-width:1.5px,color:#134e4a
class node_app,node_list,node_search,node_details toneBlue
class node_favorites,node_localstore,node_repository,node_retrofit,node_api toneAmber
class node_newsapi toneMint
class node_reader toneIndigo
```

## Components

### News experience

- [News app](https://github.com/mehdialomer/newsapp/blob/main/app/src/main/java/com/example/newsapp/ui/home/MainActivity.java): `app/src/main/java/com/example/newsapp/ui/home/MainActivity.java`
- [News list](https://github.com/mehdialomer/newsapp/blob/main/app/src/main/java/com/example/newsapp/adapter/NewsAdapter.java): `app/src/main/java/com/example/newsapp/adapter/NewsAdapter.java`
- [Search and filter](https://github.com/mehdialomer/newsapp/blob/main/app/src/main/java/com/example/newsapp/ui/home/MainActivity.java): `app/src/main/java/com/example/newsapp/ui/home/MainActivity.java`
- [Article details](https://github.com/mehdialomer/newsapp/blob/main/app/src/main/java/com/example/newsapp/ui/home/MainActivity.java): `app/src/main/java/com/example/newsapp/ui/home/MainActivity.java`

### News data

- [Favorites](https://github.com/mehdialomer/newsapp/blob/main/app/src/main/java/com/example/newsapp/data/repository/NewsRepository.java): `app/src/main/java/com/example/newsapp/data/repository/NewsRepository.java`
- [Local favorites store](https://github.com/mehdialomer/newsapp/blob/main/app/src/main/java/com/example/newsapp/data/repository/NewsRepository.java): `app/src/main/java/com/example/newsapp/data/repository/NewsRepository.java`
- [News repository](https://github.com/mehdialomer/newsapp/blob/main/app/src/main/java/com/example/newsapp/data/repository/NewsRepository.java): `app/src/main/java/com/example/newsapp/data/repository/NewsRepository.java`
- [Retrofit client](https://github.com/mehdialomer/newsapp/blob/main/app/src/main/java/com/example/newsapp/network/RetrofitClient.java): `app/src/main/java/com/example/newsapp/network/RetrofitClient.java`
- [News API service](https://github.com/mehdialomer/newsapp/blob/main/app/src/main/java/com/example/newsapp/network/NewsApiService.java): `app/src/main/java/com/example/newsapp/network/NewsApiService.java`

### External services

- **NewsAPI**

### Other components

- **Reader**

## Connections

- Reader → News app: explores news (evidence: `README.md`)
- News app → News repository: fetches news (evidence: `README.md`)
- News repository → Retrofit client: uses Retrofit (evidence: `README.md`)
- Retrofit client → News API service: makes API calls (evidence: `README.md`)
- News API service → NewsAPI: requests news (evidence: `README.md`)
- News app → News list: displays articles (evidence: `README.md`)
- Reader → Search and filter: searches news (evidence: `README.md`)
- Reader → Article details: opens articles (evidence: `README.md`)
- Reader → Favorites: saves articles (evidence: `README.md`)
- Favorites → Local favorites store: stores favorites (evidence: `README.md`)