{"id":25533807,"date":"2022-07-17T15:00:32","date_gmt":"2022-07-17T09:30:32","guid":{"rendered":"https:\/\/entri.app\/blog\/?p=25533807"},"modified":"2022-07-22T15:31:34","modified_gmt":"2022-07-22T10:01:34","slug":"extension-functions-you-need-to-know-in-android","status":"publish","type":"post","link":"https:\/\/entri.app\/blog\/extension-functions-you-need-to-know-in-android\/","title":{"rendered":"Extension Functions You Need to Know in Android"},"content":{"rendered":"

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Extension Function in Java<\/h2>\n

An interesting element that aids in Android app development is extension functionalities<\/a>. Without needing to employ design patterns like Decorator or inherit from them, they enable the addition of additional functionality to classes. Writing utility classes, typically referred to as Utils, that include static methods that take classes as arguments and operate on their public members is a common task when using the Android framework.<\/p>\n

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Modifying third-party classes to add functionality that makes use of public members is another example of a use case. Extension functions in java come to the rescue in these circumstances. They offer a convenient syntactic sugar that enables you to adjust how you call such methods so they appear to be standard member functions. They merely create new functions that can be called using the dot notation rather than altering the class itself. A receiver type that you want to extend must come before the function name when declaring an extension function.<\/p>\n

Extension Functions in Android<\/h3>\n

Android has Extension functions like extension function in java. Although they are internally converted into standard Java functions, the coding interface looks cleaner as a result. Let us look at some of the key extension functions.<\/p>\n