By default,in Archlinux's xflock4 doesn't work generally after basic install.
I decide to use i3lock to manage it.
First,download i3lock-fancy and it's dependancies
yaourt -S i3lock-color-git
cd /usr/bin
ln -s i3lock-color i3lock
sudo pacman -S imagemagick scrot xautolock
cd ~/software
git clone https://github.com/meskarune/i3lock-fancy
cd /usr/bin make slock to communicate with xflock4
sudo vim slock
# ! /bin/bash
(path to i3lock fancy)
sudo chmod +x slock
after that,go to setting /session and startup,make an autostart with below script
xautolock -locker xflock4 -time 10 -corners 0-00
