在安卓系统中，每个元素的ConstraintLayout间距相等

<androidx.constraintlayout.widget.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">

    <!-- 添加需要设置间距的元素 -->

</androidx.constraintlayout.widget.ConstraintLayout>

<Button
    android:id="@+id/button1"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="Button 1"/>

<Button
    android:id="@+id/button2"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="Button 2"/>

<!-- 添加更多需要设置间距的元素 -->

<androidx.constraintlayout.widget.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">

    <androidx.constraintlayout.widget.Guideline
        android:id="@+id/verticalGuideline"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:orientation="vertical"
        app:layout_constraintGuide_percent="0.5"/> <!-- 0.5表示居中对齐 -->

    <Button
        android:id="@+id/button1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Button 1"
        app:layout_constraintLeft_toLeftOf="@id/verticalGuideline"
        app:layout_constraintRight_toLeftOf="@id/button2"/>

    <Button
        android:id="@+id/button2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Button 2"
        app:layout_constraintLeft_toRightOf="@id/button1"
        app:layout_constraintRight_toRightOf="@id/verticalGuideline"/>

    <!-- 添加更多需要设置间距的元素 -->

</androidx.constraintlayout.widget.ConstraintLayout>