Flutter ChatGPT Masterclass - Build Chatbots from Scratch

download the flutter sdk, unzip it, place the flutter folder in the c drive, set the flutter bin path in system environment variables, and run flutter doctor.

Set up flutter on macOS, create a new flutter project in Android Studio, and run the starter counter app on iOS simulator and Android emulator.

Learn to build a simple Flutter chat interface powered by ChatGPT. Create a chat screen, add a text field and send button, and display ChatGPT responses centered on screen.

Explore API call components, including endpoint URLs, parameters, headers with content type and API keys, and the request body, plus HTTP methods like get, post, put, and delete.

Explore OpenAI models for flutter apps, such as GPT four, GPT four turbo, Dall-E three, TTS, whisper, and more, plus context window and max output tokens.

Use the http package in Flutter to post to the ChatGPT API with GPT-4, passing user input via a text editing controller and including the API key in the header.

Create a professional chat GUI in flutter using the dash chat library to display user prompts and ChatGPT responses, wiring up messages, users, and layout for an end-to-end chat experience.

Display prompts instantly in a Flutter chat app by updating the messages list and placing setState around the api call to ChatGPT, ensuring the first message appears immediately after sending.

Improve the flutter chatbot app by customizing the app bar: set a black background, display a centered white title like ChatGPT with a text widget, and color icons.

Explore maintaining context in chatbots during long conversations by asking follow-up questions and enabling the app to reference previous conversations when answering new prompts.

Explore OpenAI documentation to learn about messages and model selection, use the playground to test API requests, and view code for parameters like max token, temperature, and n.

separate networking code into a chat service class to handle api calls in the Flutter app, and update the chat screen to pass chat history to the service.

Learn to add an image generation feature to a flutter chatbot using OpenAI's Dall-E models. Send prompts to the endpoint and display generated images as media messages in chat.

Build an image screen for AI generated images, enabling full screen viewing on tap and adding a download option to save images to the device gallery.

Route user input in a flutter app to ChatGPT for text or DALL-E for images using a case-insensitive 'generate image' check, clear the input, enabling combined text and image responses.

Add text-to-speech for ChatGPT responses in a Flutter app using the flutter_tts package, wire up the TTS object, and test on a device.

Add a mic-triggered speech-to-text feature to a flutter chatbot by integrating a voice recognition library, initializing it, listening for speech, and feeding the recognized text to chatgpt.

Learn to pass images to ChatGPT in Flutter by uploading or capturing pictures and asking questions to get ingredients and instructions.

Add an in-app image picker in Flutter to select images from the gallery or capture with the camera using the image_picker package, with an icon button and platform permission setup.

Learn how to pass a selected image to ChatGPT in a Flutter chatbot and display it as media in the chat with the user's prompt.

Pass image and text to ChatGPT in a Flutter app by converting the image to base64 and sending it with the user question in the chat history.

Capture images with the camera in Flutter, swap image source to camera, display captured images, and pass both image and user questions to ChatGPT for responses.

Explore ChatGPT's audio features, including speech-to-text with downloadable mp3 voice and text-to-speech, then learn transcription and translation of audio, such as German to English, within the app.

Learn to convert audio to text in a Flutter chat app using a multipart api call, an api key header, and the whisper model for transcription.

Specify the language parameter and the language code when uploading non-English audio to the API to improve accuracy and speed, then set the model to language and rerun.