Android Studio中4个图像按钮的两个ConstraintLayout有什么不同?
我在Android项目中使用ConstraintLayout,我在UI中放置了四个图像按钮,我希望四个图像按钮之间的距离相等,似乎布局A和布局B都可以做到这一点,您可以看到结果图像AB 布局A和布局B之间有什么不同 布局AAndroid Studio中4个图像按钮的两个ConstraintLayout有什么不同?,android,android-studio,android-constraintlayout,Android,Android Studio,Android Constraintlayout,我在Android项目中使用ConstraintLayout,我在UI中放置了四个图像按钮,我希望四个图像按钮之间的距离相等,似乎布局A和布局B都可以做到这一点,您可以看到结果图像AB 布局A和布局B之间有什么不同 布局A <androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app
<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:id="@+id/camera_ui_container"
android:layout_width="match_parent"
android:layout_height="match_parent">
<ImageButton
android:id="@+id/btnFlash"
android:layout_width="@dimen/round_button_medium"
android:layout_height="@dimen/round_button_medium"
android:layout_marginLeft="@dimen/margin_xsmall"
android:layout_marginBottom="@dimen/margin_medium"
android:background="@android:color/transparent"
android:scaleType="fitCenter"
app:layout_constraintHorizontal_chainStyle="spread_inside"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toLeftOf="@+id/btnVideo"
app:srcCompat="@drawable/ic_flash_on" />
<ImageButton
android:id="@+id/btnVideo"
android:layout_width="@dimen/round_button_medium"
android:layout_height="@dimen/round_button_medium"
android:layout_marginBottom="@dimen/margin_medium"
android:background="@android:color/transparent"
android:scaleType="fitCenter"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toRightOf="@+id/btnFlash"
app:layout_constraintRight_toLeftOf="@+id/btnPicture"
app:srcCompat="@drawable/ic_menu" />
<ImageButton
android:id="@+id/btnPicture"
android:layout_width="@dimen/round_button_medium"
android:layout_height="@dimen/round_button_medium"
android:layout_marginBottom="@dimen/margin_medium"
android:background="@android:color/transparent"
android:scaleType="fitCenter"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toRightOf="@+id/btnVideo"
app:layout_constraintRight_toLeftOf="@+id/btnAction"
app:srcCompat="@drawable/ic_menu" />
<ImageButton
android:id="@+id/btnAction"
android:layout_width="@dimen/round_button_medium"
android:layout_height="@dimen/round_button_medium"
android:layout_marginRight="@dimen/margin_xsmall"
android:layout_marginBottom="@dimen/margin_medium"
android:background="@android:color/transparent"
android:scaleType="fitCenter"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintLeft_toRightOf="@+id/btnPicture"
app:srcCompat="@drawable/ic_menu" />
</androidx.constraintlayout.widget.ConstraintLayout>
Constraint layout是通过基于对父/周围兄弟的引用放置约束来设置视图的。因此,根据您的需要,这两种约束都是正确的。您的问题是什么?
<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:id="@+id/camera_ui_container"
android:layout_width="match_parent"
android:layout_height="match_parent">
<ImageButton
android:id="@+id/btnFlash"
android:layout_width="@dimen/round_button_medium"
android:layout_height="@dimen/round_button_medium"
android:layout_marginLeft="@dimen/margin_xsmall"
android:layout_marginBottom="@dimen/margin_medium"
android:background="@android:color/transparent"
android:scaleType="fitCenter"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintHorizontal_chainStyle="spread_inside"
app:layout_constraintLeft_toLeftOf="parent"
app:srcCompat="@drawable/ic_flash_on" />
<ImageButton
android:id="@+id/btnVideo"
android:layout_width="@dimen/round_button_medium"
android:layout_height="@dimen/round_button_medium"
android:layout_marginBottom="@dimen/margin_medium"
android:background="@android:color/transparent"
android:scaleType="fitCenter"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toRightOf="@+id/btnFlash"
app:layout_constraintRight_toLeftOf="@+id/btnPicture"
app:srcCompat="@drawable/ic_menu" />
<ImageButton
android:id="@+id/btnPicture"
android:layout_width="@dimen/round_button_medium"
android:layout_height="@dimen/round_button_medium"
android:layout_marginBottom="@dimen/margin_medium"
android:background="@android:color/transparent"
android:scaleType="fitCenter"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toRightOf="@+id/btnVideo"
app:layout_constraintRight_toLeftOf="@+id/btnAction"
app:srcCompat="@drawable/ic_menu" />
<ImageButton
android:id="@+id/btnAction"
android:layout_width="@dimen/round_button_medium"
android:layout_height="@dimen/round_button_medium"
android:layout_marginRight="@dimen/margin_xsmall"
android:layout_marginBottom="@dimen/margin_medium"
android:background="@android:color/transparent"
android:scaleType="fitCenter"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:srcCompat="@drawable/ic_menu" />
</androidx.constraintlayout.widget.ConstraintLayout>