Switch between splitted file with SPACE + NUMBER instead of CTRL-W (like in spacevim)

Question

Right now, when I split a file in VIM, I need to use CTRL-W + h/j/k/l to switch between them.

In spacevim (https://spacevim.org/), each file has a number visible in the bar (see picture), and I can just press SPACE + <number> in command mode to go to that file. I find that way more convenient than the default CTRL-W option. However, I don't want to install spacevim just for this, because it do a lot of other config that I don't like.

So how could I configure my vimrc to do the same?

Thank in advance for your help.

Answer 1

To see window numbers you have to setup statusline (:h statusline), for example:

set statusline=[%{winnr()}] 
set statusline+=%([\%R%M]\ %)
set statusline+=%<%f
set statusline+=%(\ %y%)
set statusline+=%=
set statusline+=%4(%p%%%)

See winnr() function in the first line.

To switch to the window with that number you can use built-in 2 C-ww

You can add mappings:

nnoremap <space>1 1<C-w>w
nnoremap <space>2 2<C-w>w
nnoremap <space>3 3<C-w>w
nnoremap <space>4 4<C-w>w
nnoremap <space>5 5<C-w>w
nnoremap <space>6 6<C-w>w
"...

Probably it could be done the other way.