我正在尝试在Guideline
下为我的约束布局添加一些空格,但由于某种原因,它似乎没有被应用。有谁知道发生了什么以及如何在Guideline
下面应用5dp的边距(纵向和横向)?
XML布局
<?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"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@color/lightgrey">
<com.google.android.gms.maps.MapView
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/map_townmap"
android:name="com.google.android.gms.maps.SupportMapFragment"
android:layout_width="0dp"
android:layout_height="0dp"
android:background="#09c"
app:layout_constraintBottom_toBottomOf="@+id/guideline"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent"/>
<android.support.constraint.Guideline
android:id="@+id/guideline"
android:layout_width="match_parent"
android:layout_height="0dp"
android:orientation="horizontal"
app:layout_constraintGuide_percent="0.9"/>
<ImageView
android:id="@+id/imageViewSun"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="5dp"
android:src="@drawable/ic_sun_black"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toLeftOf="@+id/switch"
app:layout_constraintTop_toBottomOf="@+id/guideline"
/>
<Switch
android:id="@+id/switch"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:layout_marginBottom="5dp"
android:background="@android:color/transparent"
android:theme="@android:style/Theme.Material.Light"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toRightOf="@+id/imageViewSun"
app:layout_constraintRight_toLeftOf="@+id/imageViewMoon"
app:layout_constraintTop_toBottomOf="@+id/guideline"/>
<ImageView
android:id="@+id/imageViewMoon"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/ic_moon_black"
android:layout_marginBottom="5dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toRightOf="@+id/switch"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="@+id/guideline"/>
</android.support.constraint.ConstraintLayout>
纵向方向
纵向(特写)
横向
横向(特写)
答案 0 :(得分:2)
您可以将边距应用于Guidlines:
<android.support.constraint.Guideline
android:id="@+id/guideline"
android:layout_width="1dp"
android:layout_height="wrap_content"
android:orientation="horizontal"
app:layout_constraintGuide_begin="5dp" />
虽然您可能需要相应地调整边距“layout_constraintGuide_begin”和“android:orientation”。可能你应该通过纵向布局xml文件和横向布局xml文件在正确的res文件夹位置执行此操作。
答案 1 :(得分:1)
实际上,您已经添加了Guideline
,而您正在使用app:layout_constraintGuide_percent="0.9"
。这意味着Guideline
将根据父布局进行设置,因此当您更改方向时,它看起来很奇怪。
使用以下代码解决您的问题:
<?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"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@color/lightgrey">
<com.google.android.gms.maps.MapView
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/map_townmap"
android:name="com.google.android.gms.maps.SupportMapFragment"
android:layout_width="0dp"
android:layout_height="0dp"
android:background="#09c"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintBottom_toTopOf="@+id/imageViewSun"
app:layout_constraintTop_toTopOf="parent"/>
<ImageView
android:id="@+id/imageViewSun"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="5dp"
android:layout_marginTop="5dp"
android:src="@drawable/ic_sun_black"
app:layout_constraintTop_toBottomOf="@+id/map_stationmap_lighttheme"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toLeftOf="@+id/switch" />
<Switch
android:id="@+id/switch"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:layout_marginBottom="5dp"
android:layout_marginTop="5dp"
app:layout_constraintTop_toBottomOf="@+id/map_stationmap_lighttheme"
android:background="@android:color/transparent"
android:theme="@android:style/Theme.Material.Light"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toRightOf="@+id/imageViewSun"
app:layout_constraintRight_toLeftOf="@+id/imageViewMoon"/>
<ImageView
android:id="@+id/imageViewMoon"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/ic_moon_black"
android:layout_marginBottom="5dp"
android:layout_marginTop="5dp"
app:layout_constraintTop_toBottomOf="@+id/map_stationmap_lighttheme"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toRightOf="@+id/switch"
app:layout_constraintRight_toRightOf="parent"/>
</android.support.constraint.ConstraintLayout>