Kotlin study notes 7 interface

First published on public account: DSGtalk1989

7.Kotlin interface

• The default implementation

  Kotlin supports default implementation of interface methods, as well as overwriting interface attributes

  Properties in interfaces cannot be initialized, but they can still be customized by rewriting accessors

  interface MyInterface {
       val propertyWithImplementation: String
           get() = "2"
   }
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• Same interface method

  class D : A, B {
    override fun foo() {
            super<A>.foo()
            super<B>.foo()
        }
     
        override fun bar() {
            super<B>.bar()
        }
    }
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  The A and B interfaces define the interface method foo, and the implementation class can call the default method implemented in the interface via super<>