In this article, you will learn about Kotlin abstract classes, abstract methods and how to use them in our program with the help of examples. Abstract Classes An abstract class is a class that cannot be instantiated (we cannot create objects of an abstract class). Syntax We use the abstract keyword to declare an abstract class. abstract class className […]
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This tutorial is about Android drag and drop feature and how to use it in an Android application with a simple example. Android Drag and Drop framework, allows you to move data from one View to another using a graphical drag and drop gesture. Although the framework is primarily designed for data movement, you can
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This post is about Java static keyword along with static methods, static variables, static class, and static blocks with the help of simple examples. Java static Keyword In Java, If we want to access class members without creating an instance of the class, we need to declare the class member with static keyword. In Java,
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This article is about Android GridLayoutManager and how to use it with RecyclerView to show items in uniform grid with the help of simple android application. GridLayoutManager The RecyclerView widget is a more advanced and flexible version of ListView. It is a container for displaying large data sets that can be scrolled very efficiently by maintaining a limited
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This post is about Access/Visibility modifiers in Java and how to use them. Access Modifiers In Java, access modifiers are used to set the accessibility (visibility) of classes, constructors, data members and methods in another classes. There are four types of access modifiers available in java: Default : visible only within the package. Private: visible
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This article is about Android AlertDialog and how to use it in android application with simple examples. AlertDialog AlertDialog is a small window that prompts the user to make a decision or enter additional information. A dialog does not fill the screen and is normally used for events that require users to take an action
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This article is about interfaces and how to implement it in Java with the help of examples. Interface An interface in java is a collection of fields and abstract methods (only method signature, no body). Interfaces are by default prefix with abstract keyword, which means similar to abstract classes we cannot create an object of
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This post is about android notification, how to create a simple notification, notification styles, how to add actions in notifications with the help of simple android application. Notification A Notifications provide short, timely information about events happened in the application, even if the application is not running. Creating a Basic Notification A notification in its
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This article is about Android Snackbar and how to use it in android application with simple examples in Java and Kotlin. Snackbar Snackbar is an Android Material Design component . It provide lightweight response about an operation by showing a short message at the bottom of the screen on mobile and lower left on larger
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This article is about Android Toast and how to use it in android application with simple examples using Java and Kotlin. Toast A toast provides simple feedback about an operation in a small popup. By default it appears near the bottom of the screen, centered horizontally. Toasts are not clickable and automatically disappear after a
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