Android Layout: Align View to Left and Right

Solution 1: LinearLayout

<LinearLayout
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:orientation="horizontal">

    <Button
        android:text="Left"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"/>

    <Space
        android:layout_width="0dp"
        android:layout_weight="1"
        android:layout_height="match_parent" />

    <Button
        android:text="Right"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"/>
</LinearLayout>

Solution 2: RelativeLayout

<RelativeLayout
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    >

    <Button
        android:text="Left"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"/>



    <Button
        android:text="Right"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentRight="true"/>
</RelativeLayout>

Solution 3: ConstraintLayout

<androidx.constraintlayout.widget.ConstraintLayout
    android:layout_width="match_parent"
    android:layout_height="wrap_content">

    <Button
        android:text="Left"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintStart_toStartOf="parent"/>

    <Button
        android:text="Right"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintTop_toTopOf="parent"/>

</androidx.constraintlayout.widget.ConstraintLayout>