Help needed in understanding 'like' component of anypic (for android)

[mik-dass]

Hi
I am a android newbie and I don't know anything about objective C and not about swift.I am planning to develop a android app which is based on parse and uses the 'like' component described in the anypic tutorial in parse.com .I am able to create a like object and destroy it when need .But the problem I am facing is that how do I develop the facebook or instagram like feeds section where I need to check if if a parse object is already liked or not by the user or not.I know this can be done using a inner query for each row of parse post object.But doing so will lead to many api requests and thus crossing the limit .Please help me and tell me how does the anypic objective-C and swift(your version implementation) checks if a post object is liked or not by the user without the inner query since there is no anypic version fro android .I am only looking for some kind of algorithm or pseudo code or even some proper explanation regarding the technique described used in the anypic app.
Please help.
Thank You.