I am using Android studio and I want to add module to my project like \"action bar Sherlock\" or jar files, but when I opened the project structure there is no module or lib
First You Have To Add Name Of Your Module In setting.gradle(Project Setting) File Like This..
include ':app', ':simple-crop-image-lib'
Then You Need To Compile This Module Into build.gradle(Module app) File Like This..
implementation project(':simple-crop-image-lib')
That's all for adding module now it will be appear in android section or project section as well.
If It's till did't appear rebuild or clean your project..