# trung0017/app_shareimage architecture

> Architecture diagram of the GitHub repository trung0017/app_shareimage, generated by GitDiagram from its file tree, README and a sample of source files (last updated 2026-09-29). It is an AI-made overview: check details against the source.

- Interactive diagram: https://gitdiagram.com/trung0017/app_shareimage
- Repository: https://github.com/trung0017/app_shareimage

## Overview

This is a Flutter Instagram-style app, judging from its screen and resource module names; the README itself describes only a starter project. The apparent user journey spans authentication, feed browsing, post creation, comments, search, and profiles, with shared user/post models and Firebase-backed resources. The tree supports these component boundaries, but no Dart implementation was sampled, so the links below show only the broad entry and resource relationships suggested by the module names. Native runner files are platform launch shells, not product logic.

Main entry points: [`lib/resources/firestore_methods.dart`](https://github.com/trung0017/app_shareimage/blob/master/lib/resources/firestore_methods.dart) (Firestore methods), [`lib/screens/feed_screen.dart`](https://github.com/trung0017/app_shareimage/blob/master/lib/screens/feed_screen.dart) (Feed), [`lib/responsive`](https://github.com/trung0017/app_shareimage/tree/master/lib/responsive) (Responsive layouts), [`lib/screens/add_post_screen.dart`](https://github.com/trung0017/app_shareimage/blob/master/lib/screens/add_post_screen.dart) (Create post)

## Diagram (Mermaid)

```mermaid
flowchart TD

subgraph group_app["App and navigation"]
  node_entry["App entry<br/>[main.dart]"]
  node_responsive["Responsive layouts"]
end

subgraph group_features["Social features"]
  node_authscreens["Sign in and signup"]
  node_feed["Feed<br/>[feed_screen.dart]"]
  node_create["Create post"]
  node_comments["Comments"]
  node_search["Search<br/>[search_screen.dart]"]
  node_profile["Profile"]
end

subgraph group_shared["Shared app logic"]
  node_widgets["Social widgets"]
  node_provider["User provider<br/>[user_provider.dart]"]
  node_models["User and post models"]
end

subgraph group_backend["Firebase services"]
  node_auth["Authentication methods<br/>[auth_methods.dart]"]
  node_firestoremethods["Firestore methods"]
  node_storage["Storage methods"]
  node_firebaseauth["Firebase Auth"]
  node_firestore[("Cloud Firestore")]
  node_firebasestorage[("Firebase Storage")]
end

node_user(("User"))

node_user -->|"opens app"| node_entry
node_entry -->|"starts layout"| node_responsive
node_responsive -->|"selects layout"| node_authscreens
node_responsive -->|"selects layout"| node_feed
node_user -->|"authenticates"| node_authscreens
node_user -->|"browses"| node_feed
node_user -->|"creates post"| node_create
node_user -->|"comments"| node_comments
node_user -->|"searches"| node_search
node_user -->|"views profile"| node_profile
node_authscreens -->|"uses methods"| node_auth
node_auth -->|"authenticates"| node_firebaseauth
node_feed -->|"uses methods"| node_firestoremethods
node_create -->|"uses methods"| node_firestoremethods
node_comments -->|"uses methods"| node_firestoremethods
node_search -->|"uses methods"| node_firestoremethods
node_profile -->|"uses methods"| node_firestoremethods
node_firestoremethods -->|"reads and writes"| node_firestore
node_create -->|"uses methods"| node_storage
node_storage -->|"uploads media"| node_firebasestorage
node_provider -->|"holds user data"| node_models
node_feed -->|"uses components"| node_widgets
node_comments -->|"uses components"| node_widgets
node_profile -->|"uses components"| node_widgets

click node_entry "https://github.com/trung0017/app_shareimage/blob/master/lib/main.dart"
click node_responsive "https://github.com/trung0017/app_shareimage/tree/master/lib/responsive"
click node_authscreens "https://github.com/trung0017/app_shareimage/tree/master/lib/screens"
click node_feed "https://github.com/trung0017/app_shareimage/blob/master/lib/screens/feed_screen.dart"
click node_create "https://github.com/trung0017/app_shareimage/blob/master/lib/screens/add_post_screen.dart"
click node_comments "https://github.com/trung0017/app_shareimage/blob/master/lib/screens/comments_screen.dart"
click node_search "https://github.com/trung0017/app_shareimage/blob/master/lib/screens/search_screen.dart"
click node_profile "https://github.com/trung0017/app_shareimage/blob/master/lib/screens/profile_screen.dart"
click node_widgets "https://github.com/trung0017/app_shareimage/tree/master/lib/widgets"
click node_provider "https://github.com/trung0017/app_shareimage/blob/master/lib/providers/user_provider.dart"
click node_models "https://github.com/trung0017/app_shareimage/tree/master/lib/models"
click node_auth "https://github.com/trung0017/app_shareimage/blob/master/lib/resources/auth_methods.dart"
click node_firestoremethods "https://github.com/trung0017/app_shareimage/blob/master/lib/resources/firestore_methods.dart"
click node_storage "https://github.com/trung0017/app_shareimage/blob/master/lib/resources/storage_methods.dart"

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_entry,node_responsive,node_user toneBlue
class node_authscreens,node_feed,node_create,node_comments,node_search,node_profile toneAmber
class node_widgets,node_provider,node_models toneMint
class node_auth,node_firestoremethods,node_storage,node_firebaseauth,node_firestore,node_firebasestorage toneRose
```

## Components

### App and navigation

- [App entry](https://github.com/trung0017/app_shareimage/blob/master/lib/main.dart): `lib/main.dart`
- [Responsive layouts](https://github.com/trung0017/app_shareimage/tree/master/lib/responsive): `lib/responsive`

### Social features

- [Sign in and signup](https://github.com/trung0017/app_shareimage/tree/master/lib/screens): `lib/screens`
- [Feed](https://github.com/trung0017/app_shareimage/blob/master/lib/screens/feed_screen.dart): `lib/screens/feed_screen.dart`
- [Create post](https://github.com/trung0017/app_shareimage/blob/master/lib/screens/add_post_screen.dart): `lib/screens/add_post_screen.dart`
- [Comments](https://github.com/trung0017/app_shareimage/blob/master/lib/screens/comments_screen.dart): `lib/screens/comments_screen.dart`
- [Search](https://github.com/trung0017/app_shareimage/blob/master/lib/screens/search_screen.dart): `lib/screens/search_screen.dart`
- [Profile](https://github.com/trung0017/app_shareimage/blob/master/lib/screens/profile_screen.dart): `lib/screens/profile_screen.dart`

### Shared app logic

- [Social widgets](https://github.com/trung0017/app_shareimage/tree/master/lib/widgets): `lib/widgets`
- [User provider](https://github.com/trung0017/app_shareimage/blob/master/lib/providers/user_provider.dart): `lib/providers/user_provider.dart`
- [User and post models](https://github.com/trung0017/app_shareimage/tree/master/lib/models): `lib/models`

### Firebase services

- [Authentication methods](https://github.com/trung0017/app_shareimage/blob/master/lib/resources/auth_methods.dart): `lib/resources/auth_methods.dart`
- [Firestore methods](https://github.com/trung0017/app_shareimage/blob/master/lib/resources/firestore_methods.dart): `lib/resources/firestore_methods.dart`
- [Storage methods](https://github.com/trung0017/app_shareimage/blob/master/lib/resources/storage_methods.dart): `lib/resources/storage_methods.dart`
- **Firebase Auth**
- **Cloud Firestore**
- **Firebase Storage**

### Other components

- **User**

## Connections

- User → App entry: opens app
- App entry → Responsive layouts: starts layout
- Responsive layouts → Sign in and signup: selects layout
- Responsive layouts → Feed: selects layout
- User → Sign in and signup: authenticates
- User → Feed: browses
- User → Create post: creates post
- User → Comments: comments
- User → Search: searches
- User → Profile: views profile
- Sign in and signup → Authentication methods: uses methods
- Authentication methods → Firebase Auth: authenticates
- Feed → Firestore methods: uses methods
- Create post → Firestore methods: uses methods
- Comments → Firestore methods: uses methods
- Search → Firestore methods: uses methods
- Profile → Firestore methods: uses methods
- Firestore methods → Cloud Firestore: reads and writes
- Create post → Storage methods: uses methods
- Storage methods → Firebase Storage: uploads media
- User provider → User and post models: holds user data
- Feed → Social widgets: uses components
- Comments → Social widgets: uses components
- Profile → Social widgets: uses components