Added in API level 1

OnCheckedChangeListener

interface OnCheckedChangeListener
android.widget.RadioGroup.OnCheckedChangeListener

Interface definition for a callback to be invoked when the checked radio button changed in this group.

Summary

Public methods
abstract Unit
onCheckedChanged(group: RadioGroup!, checkedId: Int)

Called when the checked radio button has changed.

Public methods

onCheckedChanged

Added in API level 1
abstract fun onCheckedChanged(
    group: RadioGroup!,
    checkedId: Int
): Unit

Called when the checked radio button has changed. When the selection is cleared, checkedId is -1.

Parameters
group RadioGroup!: the group in which the checked radio button has changed
checkedId Int: the unique identifier of the newly checked radio button