Code Expo - Development with Passion

Picasso is a library of SQUARE is used to thread and cache images asynchronously from server (Network), local storage (Disk or Memory) with some other cool functionalities like transform and resize of images. Normally, when we are working with images in mobile application, images loading is an pity issue. When application need to load many images at a time like in list-view or spinner, so due to huge load of it application may slow , crash due to not enough memory or scrolling issue than Picasso will help you a lot as well when you need to make a thumbnail of a heavy image.

Viewpager is used to slide/swipe through data in connection with fragments.

ListView is a type of user interface and a view group that provide a view of list with scroll able items.The list items are auto inserted to the list using an Adapter. Adapter is bridge that coordinate between code of different nature.Here it insert content from a Java source to XML source. Java source may be an array or database query and XML are ListView and Spinner etc.Adapter will pick data items from Java source and place it as XML Spinner or ListView contents.

Google Map Server have an API or Maps SDK for Android applications. API includes add maps, map display, add markers, polylines, polygons based on Google Maps data to our application from Google Maps servers. It have a auto listener like map gestures (Zooming and Userview of Map) and two other listeners onMapReadyCallBack and onMapClickListener. We can customize the basic map user's view of a particular map area.

Coding convention is the community defined rules for programmer, which will not harm coding but is a good programming practice to have a same rule for all community.