OpenIM Flutter ๐Ÿ’ฌ๐Ÿ’ป

September 22, 2025 ยท View on GitHub

OpenIM Flutter ๐Ÿ’ฌ๐Ÿ’ป

OpenIM Docs โ€ข OpenIM Server โ€ข openim-sdk-flutter โ€ข openim-sdk-core

OpenIM provides an open-source Instant Messaging (IM) SDK for developers, serving as an alternative solution to cloud services like Twilio and Sendbird. With OpenIM, developers can build secure and reliable IM applications similar to WeChat, Zoom, and Slack.

This repository is based on the open-source version of the OpenIM SDK, offering an Flutter IM application. You can use this application as a reference implementation of the OpenIM SDK.

Preview Preview

License :page_facing_up:

This repository is licensed under the GNU Affero General Public License Version 3 (AGPL-3.0) and is subject to additional terms. Commercial use is prohibited. For more details, see here.

Development Environment

Before you start development, ensure that the following software is installed on your system:

  • Operating System: macOS 15 or later
  • Flutter: Version 3.32.8 (Installation Guide), XCode: 16.1, Android Studio: Koala | 2024.1.1 Patch 1, JDK 17
  • Git: For version control

Additionally, make sure you have deployed the latest version of the OpenIM Server. After deployment, you can compile the project and connect it to your server for testing.

Supported Platforms

This application supports the following platforms:

PlatformVersionStatus
iOS13.0 and aboveโœ…
AndroidminSdkVersion 24โœ…

Notes

  • Flutter: Ensure your version meets the requirements to avoid dependency issues.

Quick Start

Follow the steps below to set up your local development environment:

  1. Clone the repository:

    git clone https://github.com/openimsdk/openim-flutter-demo.git
    cd openim-flutter-demo
    
  2. Install dependencies

    flutter clean
    flutter pub get
    
  3. Modify the configuration

    If you have not changed the default server ports, update only the _host to your server IP.

    static const _host = "your-server-ip or your-domain";
    
  4. Run the application using flutter run from the terminal or through your IDE.

  5. Start developing and testing! ๐ŸŽ‰

Audio/Video Calls

The open-source version supports one-to-one audio and video calls. You need to first deploy and configure the server. For multi-party audio/video calls or video conferencing, please contact us at contact@openim.io.

Build ๐Ÿš€

This project allows building separate iOS and Android applications with some differences in the process.

  • iOS:
    flutter build ipa
    
  • Android:
    flutter build apk
    
  1. The build artifacts will be located in the build directory.

Features

Description

Feature ModuleFeatureStatus
Account FeaturesPhone number registration \ Email registration \ Verification code loginโœ…
View \ Edit personal informationโœ…
Multi-language settingsโœ…
Change password \ Forgot passwordโœ…
Friend FeaturesFind \ Apply \ Search \ Add \ Delete friendsโœ…
Accept \ Reject friend requestsโœ…
Friend notesโœ…
Allow friend requests or notโœ…
Friend list \ Friend data real-time syncingโœ…
BlocklistRestrict messagesโœ…
Real-time syncing of blocklistโœ…
Add \ Remove from blocklistโœ…
Group FeaturesCreate \ Dismiss groupsโœ…
Apply to join \ Invite to join \ Leave group \ Remove membersโœ…
Group name / Avatar changes / Group data updates (notifications, real-time sync)โœ…
Invite members to groupโœ…
Transfer group ownershipโœ…
Group owner or admin approve join requestsโœ…
Search group membersโœ…
Message FeaturesOffline messagesโœ…
Roaming messagesโœ…
Multi-end messagesโœ…
Message historyโœ…
Message deletionโœ…
Clear messagesโœ…
Copy messagesโœ…
Typing indicator in single chatโœ…
Do Not Disturb for new messagesโœ…
Clear chat historyโœ…
New members can view group chat historyโœ…
New message remindersโœ…
Text messagesโœ…
Image messagesโœ…
Video messagesโœ…
Emoji messagesโœ…
File messagesโœ…
Voice messagesโœ…
Contact card messagesโœ…
Location messagesโœ…
Custom messagesโœ…
ConversationPin conversationโœ…
Mark conversation as readโœ…
Mute conversationโœ…
REST APIAuthentication managementโœ…
User managementโœ…
Relationship chain managementโœ…
Group managementโœ…
Conversation managementโœ…
Message managementโœ…
WebhookGroup callbacksโœ…
Message callbacksโœ…
Push callbacksโœ…
Relationship callbacksโœ…
User callbacksโœ…
Capacity & Performance10,000 friendsโœ…
100,000-member supergroupโœ…
Second-level syncingโœ…
Cluster deploymentโœ…
Multi-device kick-out strategy
Online StatusNo mutual kick-out across all platformsโœ…
Each platform can only log in with one deviceโœ…
PC, Mobile, Pad, Web, Mini Program each can log in with one deviceโœ…
PC not mutually kicked, only one device total for other platformsโœ…
Audio/Video CallOne-to-one audio and video callsโœ…
File StorageSupports private Minio deploymentโœ…
Supports public cloud services COS, OSS, Kodo, S3โœ…
PushReal-time online message pushโœ…
Offline message push, supports Getui, Firebaseโœ…

For more advanced features, audio/video calls, or video conferences, please contact us at contact@openim.io.

Join Our Community :busts_in_silhouette:

FAQ

1. Does it support multiple languages?

A: Support, follow the system language by default

2. Which platforms are supported?

A: The demo currently supports android and ios.

3. The debug of the android installation package can run, but the release starts with a white screen?

A: The release package of flutter is obfuscated by default. You can use the command: flutter build release --no -shrink. If this command is invalid, you can do the following

Add the following configuration to the release configuration configured in android/app/build.gradle

release {
    minifyEnabled false
    useProguard false
    shrinkResources false
}
4. What should I do if the code must be confused?

A: Add the following rules to the obfuscation rules

-keep class io.openim.**{*;}
-keep class open_im_sdk.**{*;}
-keep class open_im_sdk_callback.**{*;}
5. The android installation package cannot be installed on the emulator?

A: Because the Demo has removed some cpu architectures, if you want to run it on the emulator, please do the following:

Add in android/build.gradle configuration

ndk {
    abiFilters "armeabi-v7a",  "x86"
}
6, ios run/build release package error

A: Please set the CPU architecture to arm64, and then operate as follows

  • flutter clean
  • flutter pub get
  • cd ios
  • rm -f Podfile.lock
  • rm -rf Pods
  • pod install
  • Run Archive after connecting to the real device

ios cpu

7. What is the minimum version number for ios to run?

A: 13.0

8. Why is the map not working?

A: Doc

9. Why is offline push not working?

A: Doc