How to use Volume Key to take picture Android 4.0 and up (Worked!!)

I know this problem when I bought a new Tongsis and I realized it doesn't work on my phone. Then I've done looking for the solution but I got nothing. I spent my half day just for make it and it's work! Ok, let's begin..
 

The first and important thing you have to do is root your phone. If you already, proceed below for further details. If not, you can search “How to root..” on google search. (Make sure your device has atleast 70% battery left.)

For this you have to download..
Xposed Installer DOWNLOAD HERE (770.28 KB)

Clicks that have been marked.

Xposed Additions DOWNLOAD HERE (1.41 MB)
Clicks that have been marked.

 

Step 1:

Install those app on your device.

Step 2:

Open Xposed Installer -> framework

Then click Install/Update to make it work.

WAIT

Click grant to get access and wait again

Click Ok and your device will reboot by itself.

Step 3:
Open Xposed Installer again and click Modules

Checklist the blank.

like this ^^^ 

and then back to the menu and click framework.

Click Soft reboot to reboot your phone.

Step 4:
After your device reboot.
open the Xposed Installer then click Modules

Click Xposed Additions.

Click Buttons.

Click Add new key.

Press your volume up until the key code show up "volume up" then click Ok.

Click Volume Up.

Click Add new Condition.

Choose Screen On.

Then click Screen On again.

Checklist the blank on the right of "Click".

Click "Click"

Choose Camera.

The last Click Ok.

Step 5:
Exit from the App and enjoy your selfie.

Worked on Samsung SII Plus (GT - I9105 P) Jellybean 4.2.2.

 Please share this. Thanks and see you again~ :D