First of all hello to all, is the following to my course work we developed a web application of a real estate with PHP but the second part of this work is to develop an android application in java so I wanted to use the same site bank so that the users can interact with both platforms. Now comes the problem already vari the internet hunting some tutorial, books, videos, articles and nothing that teaches to do this communication between Mysql Database and Android java, I tried to develop web service rest with json (without success) the majority of content that I think they are obsolete or errors.
Does anyone give me a light there, please indicate anything that works and can study?