Android 约束布局更改了它在移动设备中的外观
Android constraint layout changes it's appearance in Mobile
布局看起来很棒，但在移动设备中却不是。如何克服！！！
尝试将每个视图分别连接到父视图，观看了一些解决问题的教程，但没有解决 issue.I尝试将每个视图与父视图连接，但没有解决横向模式下的问题.
<?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:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#FF1E38C9"
tools:context=".MainActivity">
<EditText
android:id="@+id/UrlEditText"
android:layout_width="280dp"
android:layout_height="45dp"
android:background="@android:color/transparent"
android:ems="10"
android:hint="Search url"
android:inputType="textUri"
android:textAlignment="center"
android:textSize="25sp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.045"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.001"
tools:text="www.google.com" />
<Button
android:id="@+id/DownloadButton"
android:layout_width="49dp"
android:layout_height="44dp"
android:background="@android:drawable/stat_sys_download_done"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.825"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.001" />
<Button
android:id="@+id/GoogleButton"
android:layout_width="92dp"
android:layout_height="41dp"
android:background="#FF09E0F8"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.843"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.371" />
<Button
android:id="@+id/FacebookButton"
android:layout_width="90dp"
android:layout_height="40dp"
android:background="#FF09E0F8"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.498"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.37" />
<Button
android:id="@+id/YoutubeButton"
android:layout_width="90dp"
android:layout_height="40dp"
android:background="#FF09E0F8"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.177"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.369" />
<Button
android:id="@+id/GmailButton"
android:layout_width="90dp"
android:layout_height="40dp"
android:layout_marginStart="8dp"
android:layout_marginLeft="8dp"
android:layout_marginTop="8dp"
android:layout_marginEnd="8dp"
android:layout_marginRight="8dp"
android:layout_marginBottom="8dp"
android:background="#FF09E0F8"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.169"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.538" />
<Button
android:id="@+id/InstagramButton"
android:layout_width="90dp"
android:layout_height="40dp"
android:background="#FF09E0F8"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.499"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.536" />
<Button
android:id="@+id/TwitterButton"
android:layout_width="90dp"
android:layout_height="40dp"
android:background="#FF09E0F8"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.843"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.536" />
</android.support.constraint.ConstraintLayout>
我期待与 Android 工作室
相同的结果
使用水平线将views/buttons限制在特定区域并通过选择每个水平线（从左到右）添加链 ) 查看然后循环链（一个按钮出现在当前视图的底部）以更改两者之间的间隙。
访问官方网站了解更多
https://developer.android.com/training/constraint-layout#constrain-chain
您也可以按照本教程进行操作。祝你好运！！！
https://www.youtube.com/watch?v=hqEfshM5Vfw
希望对初学者有所帮助
<?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:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@drawable/backgroundhomescreen"
tools:context=".MainActivity">
<EditText
android:id="@+id/UrlEditText"
android:layout_width="0dp"
android:layout_height="0dp"
android:layout_marginStart="8dp"
android:layout_marginLeft="8dp"
android:layout_marginTop="8dp"
android:layout_marginBottom="8dp"
android:background="@android:color/transparent"
android:ems="10"
android:hint="Search url"
android:inputType="textUri"
android:textAlignment="center"
android:textSize="25sp"
app:layout_constraintBottom_toTopOf="@+id/guideline"
app:layout_constraintEnd_toStartOf="@+id/DownloadButton"
app:layout_constraintHorizontal_bias="1.0"
app:layout_constraintHorizontal_chainStyle="spread"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="1.0"
tools:text="www.google.com" />
<Button
android:id="@+id/DownloadButton"
android:layout_width="0dp"
android:layout_height="0dp"
android:layout_marginStart="8dp"
android:layout_marginLeft="8dp"
android:layout_marginTop="16dp"
android:layout_marginEnd="8dp"
android:layout_marginRight="8dp"
android:layout_marginBottom="8dp"
android:background="@android:drawable/stat_sys_download_done"
app:layout_constraintBottom_toTopOf="@+id/guideline"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="@+id/guidelinevert"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="1.0" />
<Button
android:id="@+id/GoogleButton"
android:layout_width="92dp"
android:layout_height="41dp"
android:layout_marginTop="8dp"
android:layout_marginBottom="8dp"
android:background="@drawable/google"
app:layout_constraintBottom_toTopOf="@+id/guideline4"
app:layout_constraintEnd_toStartOf="@+id/InstagramButton"
app:layout_constraintHorizontal_bias="0.5"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="@+id/guideline3" />
<Button
android:id="@+id/FacebookButton"
android:layout_width="90dp"
android:layout_height="40dp"
android:layout_marginTop="8dp"
android:layout_marginBottom="8dp"
android:background="@drawable/facebook"
app:layout_constraintBottom_toTopOf="@+id/guideline3"
app:layout_constraintEnd_toStartOf="@+id/YoutubeButton"
app:layout_constraintHorizontal_bias="0.5"
app:layout_constraintStart_toEndOf="@+id/GmailButton"
app:layout_constraintTop_toTopOf="@+id/guideline2" />
<Button
android:id="@+id/YoutubeButton"
android:layout_width="90dp"
android:layout_height="40dp"
android:layout_marginTop="8dp"
android:layout_marginBottom="8dp"
android:background="@drawable/youtube"
app:layout_constraintBottom_toTopOf="@+id/guideline3"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.5"
app:layout_constraintStart_toEndOf="@+id/FacebookButton"
app:layout_constraintTop_toTopOf="@+id/guideline2" />
<Button
android:id="@+id/GmailButton"
android:layout_width="90dp"
android:layout_height="40dp"
android:layout_marginTop="8dp"
android:layout_marginBottom="8dp"
android:background="@drawable/gmail"
app:layout_constraintBottom_toTopOf="@+id/guideline3"
app:layout_constraintEnd_toStartOf="@+id/FacebookButton"
app:layout_constraintHorizontal_bias="0.5"
app:layout_constraintHorizontal_chainStyle="spread"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="@+id/guideline2" />
<Button
android:id="@+id/InstagramButton"
android:layout_width="90dp"
android:layout_height="40dp"
android:layout_marginTop="8dp"
android:layout_marginBottom="8dp"
android:background="@drawable/instagram"
app:layout_constraintBottom_toTopOf="@+id/guideline4"
app:layout_constraintEnd_toStartOf="@+id/TwitterButton"
app:layout_constraintHorizontal_bias="0.5"
app:layout_constraintStart_toEndOf="@+id/GoogleButton"
app:layout_constraintTop_toTopOf="@+id/guideline3" />
<Button
android:id="@+id/TwitterButton"
android:layout_width="90dp"
android:layout_height="40dp"
android:layout_marginTop="8dp"
android:layout_marginBottom="8dp"
android:background="@drawable/twitter"
app:layout_constraintBottom_toTopOf="@+id/guideline4"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.5"
app:layout_constraintStart_toEndOf="@+id/InstagramButton"
app:layout_constraintTop_toTopOf="@+id/guideline3" />
<android.support.constraint.Guideline
android:id="@+id/guidelinevert"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical"
app:layout_constraintGuide_percent="0.84" />
<android.support.constraint.Guideline
android:id="@+id/guideline"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal"
app:layout_constraintGuide_begin="61dp" />
<android.support.constraint.Guideline
android:id="@+id/guideline2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal"
app:layout_constraintGuide_begin="192dp" />
<android.support.constraint.Guideline
android:id="@+id/guideline3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal"
app:layout_constraintGuide_begin="277dp" />
<android.support.constraint.Guideline
android:id="@+id/guideline4"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal"
app:layout_constraintGuide_begin="365dp" />
</android.support.constraint.ConstraintLayout>
请注意，在您的回答和问题中，您都在视图上使用了固定尺寸，这不会使您的屏幕响应所有屏幕尺寸（您以后会继续看到您的问题）。
我同意您可以使用指南，但不要使用固定大小的指南，像这样使用它们：
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.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:layout_width="match_parent"
android:layout_height="match_parent">
<EditText
android:id="@+id/UrlEditText"
android:layout_width="0dp"
android:layout_height="0dp"
android:layout_marginStart="8dp"
android:layout_marginTop="8dp"
android:layout_marginEnd="8dp"
android:layout_marginBottom="8dp"
android:background="@android:color/transparent"
android:ems="10"
android:hint="Search url"
android:inputType="textUri"
android:textAlignment="center"
android:textSize="25sp"
app:layout_constraintBottom_toTopOf="@+id/guideline5"
app:layout_constraintEnd_toStartOf="@+id/guideline3"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
tools:text="www.google.com" />
<Button
android:id="@+id/DownloadButton"
android:layout_width="0dp"
android:layout_height="0dp"
android:layout_marginStart="8dp"
android:layout_marginTop="8dp"
android:layout_marginEnd="8dp"
android:layout_marginBottom="8dp"
android:background="@android:drawable/stat_sys_download_done"
app:layout_constraintBottom_toTopOf="@+id/guideline5"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="@+id/guideline3"
app:layout_constraintTop_toTopOf="parent" />
<Button
android:id="@+id/GoogleButton"
android:layout_width="0dp"
android:layout_height="0dp"
app:layout_constraintBottom_toBottomOf="@+id/FacebookButton"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.5"
app:layout_constraintStart_toEndOf="@+id/FacebookButton"
app:layout_constraintTop_toTopOf="@+id/FacebookButton" />
<Button
android:id="@+id/FacebookButton"
android:layout_width="0dp"
android:layout_height="0dp"
android:layout_marginTop="8dp"
android:layout_marginBottom="8dp"
app:layout_constraintBottom_toTopOf="@+id/guideline4"
app:layout_constraintEnd_toStartOf="@+id/GoogleButton"
app:layout_constraintHorizontal_bias="0.5"
app:layout_constraintStart_toEndOf="@+id/YoutubeButton"
app:layout_constraintTop_toTopOf="@+id/guideline6" />
<Button
android:id="@+id/YoutubeButton"
android:layout_width="0dp"
android:layout_height="0dp"
app:layout_constraintBottom_toBottomOf="@+id/FacebookButton"
app:layout_constraintEnd_toStartOf="@+id/FacebookButton"
app:layout_constraintHorizontal_bias="0.5"
app:layout_constraintHorizontal_chainStyle="packed"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="@+id/FacebookButton" />
<Button
android:id="@+id/GmailButton"
android:layout_width="0dp"
android:layout_height="0dp"
app:layout_constraintBottom_toBottomOf="@+id/InstagramButton"
app:layout_constraintEnd_toStartOf="@+id/InstagramButton"
app:layout_constraintHorizontal_bias="0.5"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="@+id/InstagramButton" />
<Button
android:id="@+id/InstagramButton"
android:layout_width="0dp"
android:layout_height="0dp"
android:layout_marginTop="8dp"
android:layout_marginBottom="8dp"
app:layout_constraintBottom_toTopOf="@+id/guideline7"
app:layout_constraintEnd_toStartOf="@+id/TwitterButton"
app:layout_constraintHorizontal_bias="0.5"
app:layout_constraintStart_toEndOf="@+id/GmailButton"
app:layout_constraintTop_toTopOf="@+id/guideline4" />
<Button
android:id="@+id/TwitterButton"
android:layout_width="0dp"
android:layout_height="0dp"
app:layout_constraintBottom_toBottomOf="@+id/InstagramButton"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.5"
app:layout_constraintStart_toEndOf="@+id/InstagramButton"
app:layout_constraintTop_toTopOf="@+id/InstagramButton" />
<androidx.constraintlayout.widget.Guideline
android:id="@+id/guideline3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical"
app:layout_constraintGuide_percent="0.8" />
<androidx.constraintlayout.widget.Guideline
android:id="@+id/guideline4"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal"
app:layout_constraintGuide_percent="0.6" />
<androidx.constraintlayout.widget.Guideline
android:id="@+id/guideline5"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal"
app:layout_constraintGuide_percent="0.1" />
<androidx.constraintlayout.widget.Guideline
android:id="@+id/guideline7"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal"
app:layout_constraintGuide_percent="0.7" />
<androidx.constraintlayout.widget.Guideline
android:id="@+id/guideline6"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal"
app:layout_constraintGuide_percent="0.5" />
</androidx.constraintlayout.widget.ConstraintLayout>
它看起来像这样（右上角的视图在那里，但没有背景，所以在图片中你看不到他）：
布局看起来很棒，但在移动设备中却不是。如何克服！！！
尝试将每个视图分别连接到父视图，观看了一些解决问题的教程，但没有解决 issue.I尝试将每个视图与父视图连接，但没有解决横向模式下的问题.
<?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:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#FF1E38C9"
tools:context=".MainActivity">
<EditText
android:id="@+id/UrlEditText"
android:layout_width="280dp"
android:layout_height="45dp"
android:background="@android:color/transparent"
android:ems="10"
android:hint="Search url"
android:inputType="textUri"
android:textAlignment="center"
android:textSize="25sp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.045"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.001"
tools:text="www.google.com" />
<Button
android:id="@+id/DownloadButton"
android:layout_width="49dp"
android:layout_height="44dp"
android:background="@android:drawable/stat_sys_download_done"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.825"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.001" />
<Button
android:id="@+id/GoogleButton"
android:layout_width="92dp"
android:layout_height="41dp"
android:background="#FF09E0F8"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.843"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.371" />
<Button
android:id="@+id/FacebookButton"
android:layout_width="90dp"
android:layout_height="40dp"
android:background="#FF09E0F8"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.498"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.37" />
<Button
android:id="@+id/YoutubeButton"
android:layout_width="90dp"
android:layout_height="40dp"
android:background="#FF09E0F8"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.177"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.369" />
<Button
android:id="@+id/GmailButton"
android:layout_width="90dp"
android:layout_height="40dp"
android:layout_marginStart="8dp"
android:layout_marginLeft="8dp"
android:layout_marginTop="8dp"
android:layout_marginEnd="8dp"
android:layout_marginRight="8dp"
android:layout_marginBottom="8dp"
android:background="#FF09E0F8"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.169"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.538" />
<Button
android:id="@+id/InstagramButton"
android:layout_width="90dp"
android:layout_height="40dp"
android:background="#FF09E0F8"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.499"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.536" />
<Button
android:id="@+id/TwitterButton"
android:layout_width="90dp"
android:layout_height="40dp"
android:background="#FF09E0F8"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.843"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.536" />
</android.support.constraint.ConstraintLayout>
我期待与 Android 工作室
相同的结果使用水平线将views/buttons限制在特定区域并通过选择每个水平线（从左到右）添加链 ) 查看然后循环链（一个按钮出现在当前视图的底部）以更改两者之间的间隙。
访问官方网站了解更多 https://developer.android.com/training/constraint-layout#constrain-chain
您也可以按照本教程进行操作。祝你好运！！！ https://www.youtube.com/watch?v=hqEfshM5Vfw
希望对初学者有所帮助
<?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:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@drawable/backgroundhomescreen"
tools:context=".MainActivity">
<EditText
android:id="@+id/UrlEditText"
android:layout_width="0dp"
android:layout_height="0dp"
android:layout_marginStart="8dp"
android:layout_marginLeft="8dp"
android:layout_marginTop="8dp"
android:layout_marginBottom="8dp"
android:background="@android:color/transparent"
android:ems="10"
android:hint="Search url"
android:inputType="textUri"
android:textAlignment="center"
android:textSize="25sp"
app:layout_constraintBottom_toTopOf="@+id/guideline"
app:layout_constraintEnd_toStartOf="@+id/DownloadButton"
app:layout_constraintHorizontal_bias="1.0"
app:layout_constraintHorizontal_chainStyle="spread"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="1.0"
tools:text="www.google.com" />
<Button
android:id="@+id/DownloadButton"
android:layout_width="0dp"
android:layout_height="0dp"
android:layout_marginStart="8dp"
android:layout_marginLeft="8dp"
android:layout_marginTop="16dp"
android:layout_marginEnd="8dp"
android:layout_marginRight="8dp"
android:layout_marginBottom="8dp"
android:background="@android:drawable/stat_sys_download_done"
app:layout_constraintBottom_toTopOf="@+id/guideline"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="@+id/guidelinevert"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="1.0" />
<Button
android:id="@+id/GoogleButton"
android:layout_width="92dp"
android:layout_height="41dp"
android:layout_marginTop="8dp"
android:layout_marginBottom="8dp"
android:background="@drawable/google"
app:layout_constraintBottom_toTopOf="@+id/guideline4"
app:layout_constraintEnd_toStartOf="@+id/InstagramButton"
app:layout_constraintHorizontal_bias="0.5"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="@+id/guideline3" />
<Button
android:id="@+id/FacebookButton"
android:layout_width="90dp"
android:layout_height="40dp"
android:layout_marginTop="8dp"
android:layout_marginBottom="8dp"
android:background="@drawable/facebook"
app:layout_constraintBottom_toTopOf="@+id/guideline3"
app:layout_constraintEnd_toStartOf="@+id/YoutubeButton"
app:layout_constraintHorizontal_bias="0.5"
app:layout_constraintStart_toEndOf="@+id/GmailButton"
app:layout_constraintTop_toTopOf="@+id/guideline2" />
<Button
android:id="@+id/YoutubeButton"
android:layout_width="90dp"
android:layout_height="40dp"
android:layout_marginTop="8dp"
android:layout_marginBottom="8dp"
android:background="@drawable/youtube"
app:layout_constraintBottom_toTopOf="@+id/guideline3"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.5"
app:layout_constraintStart_toEndOf="@+id/FacebookButton"
app:layout_constraintTop_toTopOf="@+id/guideline2" />
<Button
android:id="@+id/GmailButton"
android:layout_width="90dp"
android:layout_height="40dp"
android:layout_marginTop="8dp"
android:layout_marginBottom="8dp"
android:background="@drawable/gmail"
app:layout_constraintBottom_toTopOf="@+id/guideline3"
app:layout_constraintEnd_toStartOf="@+id/FacebookButton"
app:layout_constraintHorizontal_bias="0.5"
app:layout_constraintHorizontal_chainStyle="spread"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="@+id/guideline2" />
<Button
android:id="@+id/InstagramButton"
android:layout_width="90dp"
android:layout_height="40dp"
android:layout_marginTop="8dp"
android:layout_marginBottom="8dp"
android:background="@drawable/instagram"
app:layout_constraintBottom_toTopOf="@+id/guideline4"
app:layout_constraintEnd_toStartOf="@+id/TwitterButton"
app:layout_constraintHorizontal_bias="0.5"
app:layout_constraintStart_toEndOf="@+id/GoogleButton"
app:layout_constraintTop_toTopOf="@+id/guideline3" />
<Button
android:id="@+id/TwitterButton"
android:layout_width="90dp"
android:layout_height="40dp"
android:layout_marginTop="8dp"
android:layout_marginBottom="8dp"
android:background="@drawable/twitter"
app:layout_constraintBottom_toTopOf="@+id/guideline4"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.5"
app:layout_constraintStart_toEndOf="@+id/InstagramButton"
app:layout_constraintTop_toTopOf="@+id/guideline3" />
<android.support.constraint.Guideline
android:id="@+id/guidelinevert"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical"
app:layout_constraintGuide_percent="0.84" />
<android.support.constraint.Guideline
android:id="@+id/guideline"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal"
app:layout_constraintGuide_begin="61dp" />
<android.support.constraint.Guideline
android:id="@+id/guideline2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal"
app:layout_constraintGuide_begin="192dp" />
<android.support.constraint.Guideline
android:id="@+id/guideline3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal"
app:layout_constraintGuide_begin="277dp" />
<android.support.constraint.Guideline
android:id="@+id/guideline4"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal"
app:layout_constraintGuide_begin="365dp" />
</android.support.constraint.ConstraintLayout>
请注意，在您的回答和问题中，您都在视图上使用了固定尺寸，这不会使您的屏幕响应所有屏幕尺寸（您以后会继续看到您的问题）。 我同意您可以使用指南，但不要使用固定大小的指南，像这样使用它们：
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.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:layout_width="match_parent"
android:layout_height="match_parent">
<EditText
android:id="@+id/UrlEditText"
android:layout_width="0dp"
android:layout_height="0dp"
android:layout_marginStart="8dp"
android:layout_marginTop="8dp"
android:layout_marginEnd="8dp"
android:layout_marginBottom="8dp"
android:background="@android:color/transparent"
android:ems="10"
android:hint="Search url"
android:inputType="textUri"
android:textAlignment="center"
android:textSize="25sp"
app:layout_constraintBottom_toTopOf="@+id/guideline5"
app:layout_constraintEnd_toStartOf="@+id/guideline3"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
tools:text="www.google.com" />
<Button
android:id="@+id/DownloadButton"
android:layout_width="0dp"
android:layout_height="0dp"
android:layout_marginStart="8dp"
android:layout_marginTop="8dp"
android:layout_marginEnd="8dp"
android:layout_marginBottom="8dp"
android:background="@android:drawable/stat_sys_download_done"
app:layout_constraintBottom_toTopOf="@+id/guideline5"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="@+id/guideline3"
app:layout_constraintTop_toTopOf="parent" />
<Button
android:id="@+id/GoogleButton"
android:layout_width="0dp"
android:layout_height="0dp"
app:layout_constraintBottom_toBottomOf="@+id/FacebookButton"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.5"
app:layout_constraintStart_toEndOf="@+id/FacebookButton"
app:layout_constraintTop_toTopOf="@+id/FacebookButton" />
<Button
android:id="@+id/FacebookButton"
android:layout_width="0dp"
android:layout_height="0dp"
android:layout_marginTop="8dp"
android:layout_marginBottom="8dp"
app:layout_constraintBottom_toTopOf="@+id/guideline4"
app:layout_constraintEnd_toStartOf="@+id/GoogleButton"
app:layout_constraintHorizontal_bias="0.5"
app:layout_constraintStart_toEndOf="@+id/YoutubeButton"
app:layout_constraintTop_toTopOf="@+id/guideline6" />
<Button
android:id="@+id/YoutubeButton"
android:layout_width="0dp"
android:layout_height="0dp"
app:layout_constraintBottom_toBottomOf="@+id/FacebookButton"
app:layout_constraintEnd_toStartOf="@+id/FacebookButton"
app:layout_constraintHorizontal_bias="0.5"
app:layout_constraintHorizontal_chainStyle="packed"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="@+id/FacebookButton" />
<Button
android:id="@+id/GmailButton"
android:layout_width="0dp"
android:layout_height="0dp"
app:layout_constraintBottom_toBottomOf="@+id/InstagramButton"
app:layout_constraintEnd_toStartOf="@+id/InstagramButton"
app:layout_constraintHorizontal_bias="0.5"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="@+id/InstagramButton" />
<Button
android:id="@+id/InstagramButton"
android:layout_width="0dp"
android:layout_height="0dp"
android:layout_marginTop="8dp"
android:layout_marginBottom="8dp"
app:layout_constraintBottom_toTopOf="@+id/guideline7"
app:layout_constraintEnd_toStartOf="@+id/TwitterButton"
app:layout_constraintHorizontal_bias="0.5"
app:layout_constraintStart_toEndOf="@+id/GmailButton"
app:layout_constraintTop_toTopOf="@+id/guideline4" />
<Button
android:id="@+id/TwitterButton"
android:layout_width="0dp"
android:layout_height="0dp"
app:layout_constraintBottom_toBottomOf="@+id/InstagramButton"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.5"
app:layout_constraintStart_toEndOf="@+id/InstagramButton"
app:layout_constraintTop_toTopOf="@+id/InstagramButton" />
<androidx.constraintlayout.widget.Guideline
android:id="@+id/guideline3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical"
app:layout_constraintGuide_percent="0.8" />
<androidx.constraintlayout.widget.Guideline
android:id="@+id/guideline4"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal"
app:layout_constraintGuide_percent="0.6" />
<androidx.constraintlayout.widget.Guideline
android:id="@+id/guideline5"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal"
app:layout_constraintGuide_percent="0.1" />
<androidx.constraintlayout.widget.Guideline
android:id="@+id/guideline7"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal"
app:layout_constraintGuide_percent="0.7" />
<androidx.constraintlayout.widget.Guideline
android:id="@+id/guideline6"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal"
app:layout_constraintGuide_percent="0.5" />
</androidx.constraintlayout.widget.ConstraintLayout>
它看起来像这样（右上角的视图在那里，但没有背景，所以在图片中你看不到他）：