<?xml version="1.0" encoding="utf-8"?> <layout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" xmlns:tools="http://schemas.android.com/tools" tools:context="jackall.devrealm.activity.MainActivity"> <data> <variable name="mainViewModel" type="jackall.devrealm.viewmodel.MainViewModel" /> </data> <android.support.constraint.ConstraintLayout android:layout_width="match_parent" android:layout_height="match_parent"> <Button android:id="@+id/db_add_button" android:layout_width="0dp" android:layout_height="wrap_content" android:onClick="@{mainViewModel.onClickAdd}" android:text="@string/add" app:layout_constraintEnd_toStartOf="@id/db_remove_button" app:layout_constraintStart_toStartOf="parent" app:layout_constraintTop_toTopOf="parent" /> <Button android:id="@+id/db_remove_button" android:layout_width="0dp" android:layout_height="wrap_content" android:onClick="@{mainViewModel.onClickRemove}" android:text="@string/remove" app:layout_constraintEnd_toEndOf="parent" app:layout_constraintStart_toEndOf="@id/db_add_button" app:layout_constraintTop_toTopOf="parent" /> <android.support.v7.widget.RecyclerView android:layout_width="0dp" android:layout_height="0dp" android:setMainAdapter="@{mainViewModel.adapter}" app:layout_constraintBottom_toBottomOf="parent" app:layout_constraintEnd_toEndOf="parent" app:layout_constraintStart_toStartOf="parent" app:layout_constraintTop_toBottomOf="@id/db_add_button" /> </android.support.constraint.ConstraintLayout> </layout>