Hot reload on save

Question

I'm currently using a terminal and vim on OSX as a development environment for Flutter. Things are going pretty well except that the app does not reload when I save any dart files. Is there a way to trigger that behavior?Currently I have to go to the terminal and hit "r" to see my changes.

Answer 1

Sorry for the plug, but I wrote a very simple plugin to handle this.

It makes use of Flutter's --pid-file command line flag to send it a SIGUSR1 signal.

You can achieve the same result as my two-line plugin by adding this to an autocmd

silent execute '!kill -SIGUSR1 "$(cat /tmp/flutter.pid)"'

And launching Flutter with the --pid-file flag.