Question

Eclipse puts binaries in “project folder/bin/” by default. I’d like to have Eclipse put generated binaries etc in another folder (outside the project folder). Doing Android development.

Answer 1

You can change the “output folder” (by default bin) for a Java project (see “How do I change a Java project’s bin folder in Eclipse?“)

But for Android projects, as detailed in “Can’t change default output folder“, you need to modify the build.properties as well.
That can be dangerous though, as commented:

Just to note that changing the output folders doesn’t work when dealing with library projects – there’s part of the Ant script that is hardcoded to look in the bin folder of libs anyway.

So maybe using the exclude option of Dropbox is preferable here?