[Kotlin] how to show the input result on the screen using textview (call, enroll and use the variables and items from main.xml on kotlin file)

l RESULT l EXPLANATION 1. designate the id on xml file android:id="@+id/tvInput" 2. enroll the id on kotlin file 1) import import android.widget.Button import android.widget.TextView 2) define the value private var tvInput : TextView? = null 2) initialize the value using find view by 더보기 id + r. id. + (name of id) tvInput = findViewById(R.id.tvInput) 3. use the value on the method 1) set the val..

2022.06.19