Android ConstraintLayout : Three buttons equally distribute across the width
To make 3 view equally distribute across the width just need to set constraint start/end
of each view must define correct
Code
<android.support.constraint.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
>
<Button
android:id="@+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Button 1"
app:layout_constraintEnd_toStartOf="@+id/button2"
app:layout_constraintStart_toStartOf="parent"
/>
<Button
android:id="@+id/button2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Button 2"
app:layout_constraintEnd_toStartOf="@+id/button3"
app:layout_constraintStart_toEndOf="@+id/button1"
/>
<Button
android:id="@+id/button3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Button 3"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toEndOf="@+id/button2"
/>
</android.support.constraint.ConstraintLayout>
Output
MORE
If you need 3 views full width, just need to change android:layout_width="wrap_content"
to android:layout_width="0dp"
Output
Here is a visual example.
- Select the views
- Right click and choose Chain > Create Horizontal Chain
See also
- ConstraintLayout: pack vs chain
Try the below code
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout
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"
android:id="@+id/activity_main_inference"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_editor_absoluteX="0dp"
app:layout_editor_absoluteY="80dp"
tools:layout_editor_absoluteX="0dp"
tools:layout_editor_absoluteY="80dp">
<Button
android:text="Button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/button7"
android:layout_marginTop="16dp"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintBottom_toBottomOf="parent"
android:layout_marginBottom="16dp"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
tools:layout_constraintRight_creator="1"
tools:layout_constraintLeft_creator="1" />
<Button
android:text="Button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/button8"
app:layout_constraintTop_toTopOf="@+id/button7"
tools:layout_constraintLeft_creator="1"
app:layout_constraintLeft_toLeftOf="parent"
android:layout_marginStart="8dp"
app:layout_constraintRight_toLeftOf="@+id/button7"
android:layout_marginEnd="8dp" />
<Button
android:text="Button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/button9"
app:layout_constraintBaseline_toBaselineOf="@+id/button7"
tools:layout_constraintRight_creator="1"
android:layout_marginEnd="7dp"
app:layout_constraintRight_toRightOf="parent"
android:layout_marginStart="8dp"
app:layout_constraintLeft_toRightOf="@+id/button7" />
</android.support.constraint.ConstraintLayout>
Try this it works for me...
<android.support.constraint.ConstraintLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent">
<Button
android:id="@+id/button_save"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:text="@string/button_save_text"
android:layout_marginStart="8dp"
android:layout_marginBottom="8dp"
android:layout_marginEnd="4dp"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintRight_toLeftOf="@+id/button_share"
app:layout_constraintHorizontal_chainStyle="spread" />
<Button
android:id="@+id/button_share"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:text="@string/button_share_text"
android:layout_marginStart="4dp"
android:layout_marginEnd="8dp"
android:layout_marginBottom="8dp"
app:layout_constraintLeft_toRightOf="@+id/button_save"
app:layout_constraintRight_toLeftOf="parent"
app:layout_constraintBottom_toBottomOf="parent" />
</android.support.constraint.ConstraintLayout>