In native android development we can change the build folder destination adding the line below to the project "build.gradle" file:

allprojects {
    repositories {
      ...
    }
    buildDir = "C:/dev_build/android/${rootProject.name}/${project.name}"
}

With Flutter I tried @cbracken instructions to create the .flutter_settings file at the home folder with this content: {"build-dir": "somePath"} and I found the following issues:

• It affects all flutter projects.
• The path have to be relative or we get an exception
• The path have to exist beforehand or we get an exception
• After an complete build I found only 3 files in this new path: frontend_server.d, app.dill and app.dill.incremental.dill. All the others files went to the default "build" folder inside the project.

Ideally, I think, it should (as in native android):

1. Have an absolute path support
2. Create the path when it does not exist.
3. Have some way to interpolate the project name into the path
4. Be a by project configuration.

The reasons to change the build destination that I can think of are:

1. To avoid polluting the project folder with generated files
2. To avoid copying the build files (>300MB) when doing a backup of the project folder
3. To avoid wearing out a SSD when the project is in one
4. Put the build files on a faster device to reduce building time

I know that this is not a priority issue for now but it would be nice to have it visited in a near future.

By the way, congratulations on building this amazing framework. I'm really loving Flutter.

flutter build apk --verbose -->build.log