![]() If anything, it opens them up a bit, by offering some new, cleaner options. ![]() Other options exist with singleton objects or top-level functions.Īs with most things, Kotlin implies a little shift in your design process, but it doesn’t really restrict your options compared to Java. They’re not even needed to have static members or methods.They are true Kotlin objects, complete with name and type(s), and some extra capabilities. use Google API Client Libraries or Google OAuth 2.0 endpoints to implement OAuth 2.0 authorization to access Google APIs.To sum it up, companion objects are more than just a workaround for people missing the static modifier: Although Marcin Moskala suggested using this feature to add factory extensions to a class. What’s the point of such a thing? I don’t really know. As far as compilation is concerned, the three lines inside the testCompanion() method below are all valid statements. This means that in practice, you’re not limited to one static object to gather all your static properties! The companion keyword is nothing more than a shortcut to allow you to access the content of that object through the class name (or drop the class name altogether if you’re inside that specific class and just use the method or property name). ![]() ![]() (dot) operator as shown below: var varName ClassName() varName. ![]() You could actually declare a singleton inside your class and manipulate it the same way as a companion. We can access the properties and methods of a class using the. First thing is that a companion object is a singleton instance of an actual object. ![]()
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