Kotlin Android Extensions: How to get a reference to a view in a layout that gets included into another layout? - kotlin-android-extensions

Question

I have a layout that includes another layout:
activity_main.xml:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:id="#+id/textView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="TextView"/>
<include layout="#layout/included_layout" />
</LinearLayout>
included_layout.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:id="#+id/includedTextView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Included TextView"/>
</LinearLayout>
How can I get a reference to the TextView in the included layout? Is it not supported (yet)?
MainActivity:
import android.app.Activity
import android.os.Bundle
import android.support.v7.app.AppCompatActivity
import kotlinx.android.synthetic.activity_main.*
class MainActivity : AppCompatActivity(){
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_main)
textView.text = "text" // works!
textViewInclude.text = "textInclude" // does not work: "Unresolved reference: textViewInclude "
}
}

Answer 1

You should import the included layout.
import android.app.Activity
import android.os.Bundle
import android.support.v7.app.AppCompatActivity
import kotlinx.android.synthetic.main.activity_main.*
import kotlinx.android.synthetic.main.included_layout.* // Here
class MainActivity : AppCompatActivity() {
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_main)
// From activity_main.textView
textView.text = "text"
// From included_layout.textViewInclude
textViewInclude.text = "textInclude"
}
}

Answer 2

In the Activity where you want acess of other layout element implement click Listner
class LoginActivity : AppCompatActivity(), View.OnClickListener {
override fun onClick(view: View?) {
when (view?.id) {
R.id.dialog_cancel-> { dialog.cancel() }
}
}
}
in the another layout which you are importing in your Activity, place onClick() in the element and refrence it to the Activity where you imported onClick listner
android:onClick="onClick"
It will work definetly and the another xml element will listen the click