app/src/main/res/layout/activity_main.xml

   1 <?xml version="1.0" encoding="utf-8"?>
   2 <androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
   3     xmlns:app="http://schemas.android.com/apk/res-auto"
   4     xmlns:tools="http://schemas.android.com/tools"
   5     android:layout_width="match_parent"
   6     android:layout_height="match_parent"
   7     tools:context=".MainActivity">
   8
   9     <EditText
  10         android:id="@+id/messageText"
  11         android:layout_width="0dp"
  12         android:layout_height="wrap_content"
  13         android:ems="10"
  14         android:hint="@string/edit_message"
  15         android:inputType="textPersonName"
  16         app:layout_constraintEnd_toStartOf="@+id/sendButton"
  17         app:layout_constraintHorizontal_bias="0.5"
  18         app:layout_constraintStart_toStartOf="parent"
  19         app:layout_constraintTop_toTopOf="parent"/>
  20
  21     <Button
  22         android:id="@+id/sendButton"
  23         android:layout_width="wrap_content"
  24         android:layout_height="wrap_content"
  25         android:layout_marginStart="16dp"
  26         android:layout_marginEnd="16dp"
  27         android:onClick="sendMessage"
  28         android:text="@string/button_send"
  29         app:layout_constraintBaseline_toBaselineOf="@+id/messageText"
  30         app:layout_constraintEnd_toEndOf="parent"
  31         app:layout_constraintHorizontal_bias="0.5"
  32         app:layout_constraintStart_toEndOf="@+id/messageText" />
  33 </androidx.constraintlayout.widget.ConstraintLayout>