Flutter DevTools
Performance tools for Flutter.
What is this?
This repo is a companion repo to the main flutter repo. It contains the source code for a suite of Flutter performance tools.
But there's not much here?
It's still very early in development - stay tuned.
Development
- git clone https://github.com/flutter/devtools
- cd devtools
- pub get
From a separate terminal:
- cd <path/to/flutter-sdk>/examples/flutter_gallery
- ensure the iOS Simulator is open (or a physical device is connected)
- flutter run
From the devtools directory:
- pub run webdev serve
Then, open a browser window to the local url specified by webdev. After the page has loaded, append
?port=xxx to the url, where xxx is the port number of the service protocol port, as specified by
the flutter run output.
For more efficient development, launch your flutter application specifying
--observatory-port so the observatory is available on a fixed port. This
lets you avoid manually entering the observatory port paremeter each time
you launch the application.
- flutter run --observatory-port=8888
- open http://localhost:8080/?port=8888
Deployment
The strategy to deploy this tool has not yet been finalized. An important thing to be aware of is that the development steps build the application using dartdevc while the application will be deployed using the Dart2Js compiler which generally generates more efficient JS.