I checked this link to:
https://developer.android.com/tools/support-library/setup.html
It says I should use SDK manager to download and add v7-appcompat, however I have to connect to internet through proxy and when I use SDK manager it cannot download anything.
So how can I download and add v7-appcompat?
I KNOW HOW TO USE PROXY, BUT PROXY MAKE MY INTERNET SPEED WORSE, SO SKD MANAGER GET TIMED OUT MESSAGE.
(I want to use material design, but when I use this theme: Theme.AppCompat.Light.DarkActionBar it connot resolve it, I checked through web and I find out I need to add v7-appcompat and there is not any folder like extras\android\support)