Android – When we start new activities to kotlin why we put .java in intent instead of .kt

October 7, 2021By Simo Android

According to kotlin doc, we use the following syntax to start a new activity

startActivity(Intent(this @ MainActivity,NextActivity :: class.java))

It’s kotlin, why do we add .java after class? Why not kt?

Because NextActivity :: class provides you with KClass< NextActivity>, and KClass has a name java methods/extended attributes, it provides you java.lang.Classfor a given class.

You can even check out the source -code for that java property.

According to the kotlin doc, we use the following syntax to start a new activity

startActivity(Intent(this @ MainActivity,NextActivity :: class.java))

It’s kotlin, why do we add .java after class? Why not kt?

Because NextActivity::class provides you with KClass, and KClass has a method/extension called java Attribute, it provides you java.lang.Classfor a given class.

You can even check out the source-code for that java property.

Android, Event, intent, Java, Kotlin, KT, New, not, Put, We, why

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