How's Layout sending id to Main_activity?

[Marcee]

Hello, everyone. Please don't kick hard. I'm just learning. I want to hang a listener on id in MainActivity. Two codes:

bottom_sheet_layuot.xml 
<LinearLayout

android:layout_width="match_parent"

android:layout_height="55dp"

android:id="@+id/share"

android:orientation="horizontal"

>

and MainActivity

class MainActivity : AppCompatActivity() {

private lateinit var dialog_btn: Button

private lateinit var share: View
override fun onCreate(savedInstanceState: Bundle?) {
    super.onCreate(savedInstanceState)
    setContentView(R.layout.activity_main)

  val bottomSheetDialog = BottomSheetDialog(this)

  val view = layoutInflater.inflate(R.layout.bottom_sheet_layuot, null)

    dialog_btn = findViewById<Button>(R.id.dialog_btn);
    share = findViewById<View>(R.id.share);

    bottomSheetDialog.setContentView(view)

    dialog_btn.setOnClickListener {
       bottomSheetDialog.show()
    }

       share.setOnClickListener {
            Toast.makeText(this, "Share",Toast.LENGTH_SHORT).show()
        }
   }

}

[Saumya]

If you understand correctly, you want a linerLayout from xml on id in MainActivity. Let's eat in activiy_main.xml ListView

<ListView
        android:id="@+id/listView"
        android:layout_width="0dp"
        android:layout_height="0dp"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent">

To get it in MainActivity, you have to set up the main site of the ListView and put it on the id, so...

public class MainActivity extends AppCompatActivity {
    private ListView listView; //создаем 
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
     //... 
     listView = findViewById(R.id.listView); //присваиваем и можем дальше обращаться к listView

     //например, сделаем событие по элементу списка 
     listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
      @Override
      public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
        }
    });

}

}

R.id.listView is the id that is indicated in xml, as can be done with all elements.