This article is the extension of Observer Pattern. In this we will try to relate this pattern with Android framework so that it would be easy for Android enthusiasts to relate better. If you are seeking for some more deep basic understanding on Observer Pattern, you can ……………
The Observer Pattern is a software design pattern that establishes a one-to-many dependency between objects. Anytime the state of one of the objects (the “subject” or “observable”) changes, all of the other objects (“observers”) that depend on it are notified. Before starting this Observer Design Pattern, I would ……………
In Java the Singleton pattern will ensure that there is only one instance of a class is created in the Java Virtual Machine. It is used to provide global point of access to the object. In terms of practical use Singleton patterns are used in logging, caches, ……………
Design patterns are typical solutions to commonly occurring problems in software design. They are like pre-made blueprints that you can customise to solve a recurring design problem in your code. You can’t just find a pattern and copy it into your program, the way you can with ……………