Is it possible to use a kotlin extension in a android java class? Example:
fun String.getSomething(): String {
return "something"
}
then in Java use it like:
String someString = "blabla";
someString.getSomething();
is this possible?
Is it possible to use a kotlin extension in a android java class? Example:
fun String.getSomething(): String {
return "something"
}
then in Java use it like:
String someString = "blabla";
someString.getSomething();
is this possible?
You can mix kotlin and java ( use/call kotlin classes in java classes ) But what you want here is use a kotlin feature in java - this is not possible
Kotlin's extension functions are compiled to JVM methods taking the receiver as the first parameter. If your extension function is declared on the top level, for example in a file named file.kt
:
package foo
fun String.getSomething(): String {
return "something"
}
Then, in Java, you can call the static method from the corresponding file class:
import foo.FileKt;
...
String someString = "blabla";
FileKt.getSomething(someString);