Compose Chat app using Kotlin. Very simple UI includes preview every component to easy to understand Compose not require additional fake data or other method.
Advantages:

• Fast and Easy
• Multi language
• Simple but elegant UI.

This app uses the latest libraries and tools:

• 100% written in Kotlin;
• Compose;
• StateFlow;
• Proto datastore for user preference no java-lite.
• MVVM architecture;
• Clean Architecture;
• Google Speech-Text streaming (gRPC);
• OpenAi Gpt3.5 streaming;
• Koin Dependency Injection for KMM
• Text to Speech in Hungarian
• Advanced Preview where ViewModel used.

• add GPT4

THIS PROJECT SHOULD NOT BE USED IN PRODUCTION.

• The Google credential json is stored in "assests" folder for the simplicity. To use this in production would require an authentication server to store json credential.

Dependency Injection used.

• Demonstrates how to pass Context safely to Viewmodel.

This is an experimental project using Compose LazyColum.

• Store conversation in LiveData

Conversations stored in ViewModel as MutableList . However there is a problem with adding or changing item value in exiting conversationModel. Adding to the liveData like this: https://developer.android.com/topic/libraries/architecture/livedata#update_livedata_objects does not trigger the observer when recompensation happens but add a new ConversationModel object to a list of Conversations or the other solution to use HashMap.

• By Remember

Following this https://developer.android.com/jetpack/compose/performance/bestpractices#avoid-backwards We can use “var count by remember { mutableStateOf(0) }” to store our list items would be nice if data does not come from streaming API otherwise does not work.

• AutoScrolling in LazyColumn when streaming.

Referring to this article https://developer.android.com/jetpack/compose/lists#react-to-scroll-position this require addition code to add lazyColumn " val scrollState = rememberScrollState() LaunchedEffect(favourites.size) { scrollState.animateScrollTo(scrollState.maxValue) } "

• Take away

There has been a lot of boiler plate code to make this working with LiveData and manual dependecy injection so in this usecase to use Flow and Dagger would be much better option.

Assistant
Copyright (C) 2022  Peter Szollar

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or 
any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>.