我正在尝试使用ScrollView中的ConstraintLayout进行可滚动活动。
但它在底部显示一个空白区域
在Android Studio上,Blueprint不显示任何内容。
我的XML是这样的:
<ScrollView 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="wrap_content"
android:clipToPadding="false"
android:layout_weight="1"
android:fillViewport="true">
<android.support.constraint.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
tools:context="com.bonecadetrapo.imagensprincipal"
tools:layout_editor_absoluteX="0dp"
tools:layout_editor_absoluteY="25dp">
<android.support.constraint.Guideline
android:id="@+id/guideline10"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal"
app:layout_constraintGuide_begin="929dp" />
<android.support.v7.widget.CardView
android:id="@+id/cardview1"
android:layout_width="164dp"
android:layout_height="197dp"
android:layout_marginBottom="300dp"
android:layout_marginStart="17dp"
android:layout_marginTop="8dp"
android:clickable="true"
android:elevation="3dp"
android:focusable="true"
android:foreground="?android:selectableItemBackground"
app:layout_constraintBottom_toTopOf="@+id/guideline10"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="@+id/guideline3"
app:layout_constraintVertical_bias="0.0">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<ImageView
android:id="@+id/thumbnail"
android:layout_width="164dp"
android:layout_height="170dp"
android:layout_marginLeft="3dp"
android:layout_marginRight="3dp"
android:layout_marginTop="3dp"
android:background="?attr/selectableItemBackgroundBorderless"
android:clickable="true"
android:scaleType="centerInside"
app:srcCompat="@drawable/one" />
<TextView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_alignParentBottom="true"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:layout_below="@id/thumbnail"
android:paddingLeft="10dp"
android:paddingRight="10dp"
android:paddingTop="0dp"
android:text="example 1" />
</RelativeLayout>
</android.support.v7.widget.CardView>
<android.support.v7.widget.CardView
android:id="@+id/cardview2"
android:layout_width="164dp"
android:layout_height="197dp"
android:layout_marginBottom="300dp"
android:layout_marginEnd="24dp"
android:layout_marginStart="17dp"
android:layout_marginTop="8dp"
android:clickable="true"
android:elevation="3dp"
android:focusable="true"
android:foreground="?android:selectableItemBackground"
app:layout_constraintBottom_toTopOf="@+id/guideline10"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.64"
app:layout_constraintStart_toStartOf="@+id/guideline5"
app:layout_constraintTop_toTopOf="@+id/guideline3"
app:layout_constraintVertical_bias="0.0">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<ImageView
android:id="@+id/thumbnail2"
android:layout_width="164dp"
android:layout_height="170dp"
android:layout_marginLeft="3dp"
android:layout_marginRight="3dp"
android:layout_marginTop="3dp"
android:background="?attr/selectableItemBackgroundBorderless"
android:clickable="true"
android:scaleType="centerInside"
app:srcCompat="@drawable/two" />
<TextView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_alignParentBottom="true"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:layout_below="@id/thumbnail2"
android:paddingLeft="10dp"
android:paddingRight="10dp"
android:paddingTop="0dp"
android:text="example 2" />
</RelativeLayout>
</android.support.v7.widget.CardView>
<android.support.v7.widget.CardView
android:id="@+id/cardview5"
android:layout_width="164dp"
android:layout_height="160dp"
android:layout_marginBottom="170dp"
android:layout_marginEnd="8dp"
android:layout_marginLeft="16dp"
android:layout_marginStart="8dp"
android:layout_marginTop="24dp"
android:clickable="true"
android:elevation="3dp"
android:focusable="true"
android:foreground="?android:selectableItemBackground"
app:layout_constraintBottom_toTopOf="@+id/guideline10"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.039"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/cardview3"
app:layout_constraintVertical_bias="0.0">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<ImageView
android:id="@+id/thumbnail5"
android:layout_width="164dp"
android:layout_height="130dp"
android:layout_marginLeft="6dp"
android:layout_marginRight="6dp"
android:layout_marginTop="6dp"
android:adjustViewBounds="false"
android:background="?attr/selectableItemBackgroundBorderless"
android:clickable="true"
android:cropToPadding="false"
android:scaleType="fitXY"
app:srcCompat="@drawable/exampletwo" />
<TextView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_alignParentBottom="true"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:layout_below="@id/thumbnail5"
android:paddingLeft="10dp"
android:paddingRight="10dp"
android:paddingTop="0dp"
android:text="Example 2" />
</RelativeLayout>
</android.support.v7.widget.CardView>
<android.support.design.widget.AppBarLayout
android:id="@+id/appbar"
android:layout_width="384dp"
android:layout_height="wrap_content"
android:paddingTop="@dimen/appbar_padding_top"
android:theme="@style/AppTheme.Negocio">
<android.support.v7.widget.Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="1"
android:background="?attr/colorPrimary"
app:layout_scrollFlags="scroll|enterAlways"
app:popupTheme="@style/AppTheme.Negocio"
app:title="Negocio">
</android.support.v7.widget.Toolbar>
</android.support.design.widget.AppBarLayout>
<android.support.constraint.Guideline
android:id="@+id/guideline3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal"
app:layout_constraintGuide_percent="0.06" />
<android.support.constraint.Guideline
android:id="@+id/guideline5"
android:layout_width="wrap_content"
android:layout_height="929dp"
android:orientation="vertical"
app:layout_constraintGuide_begin="204dp" />
<android.support.constraint.Guideline
android:id="@+id/guideline6"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical"
app:layout_constraintGuide_end="17dp" />
</android.support.constraint.ConstraintLayout>
我正在使用Android Studio Beta 7和Oreo。 我已经尝试过google上的所有解决方案,但都没有。
答案 0 :(得分:1)
我修复了它使用此代码
<ScrollView 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="wrap_content"
android:clipToPadding="false"
android:layout_weight="1"
android:fillViewport="true">
<android.support.constraint.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
tools:context="com.bonecadetrapo.imagensprincipal"
tools:layout_editor_absoluteX="0dp"
tools:layout_editor_absoluteY="25dp">
<android.support.constraint.Guideline
android:id="@+id/guideline10"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal"
app:layout_constraintGuide_begin="929dp" />
<android.support.v7.widget.CardView
android:id="@+id/cardview1"
android:layout_width="164dp"
android:layout_height="197dp"
android:layout_marginBottom="300dp"
android:layout_marginStart="17dp"
android:layout_marginTop="8dp"
android:clickable="true"
android:elevation="3dp"
android:focusable="true"
android:foreground="?android:selectableItemBackground"
app:layout_constraintBottom_toTopOf="@+id/guideline10"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="@+id/guideline3"
app:layout_constraintVertical_bias="0.0"
android:layout_marginLeft="17dp">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<ImageView
android:id="@+id/thumbnail"
android:layout_width="164dp"
android:layout_height="170dp"
android:layout_marginLeft="3dp"
android:layout_marginRight="3dp"
android:layout_marginTop="3dp"
android:background="?attr/selectableItemBackgroundBorderless"
android:clickable="true"
android:scaleType="centerInside"
app:srcCompat="@drawable/one" />
<TextView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_alignParentBottom="true"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:layout_below="@id/thumbnail"
android:paddingLeft="10dp"
android:paddingRight="10dp"
android:paddingTop="0dp"
android:text="example 1" />
</RelativeLayout>
<android.support.constraint.Guideline
android:id="@+id/guideline6"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical"
app:layout_constraintGuide_end="17dp" />
</android.support.v7.widget.CardView>
<android.support.v7.widget.CardView
android:id="@+id/cardview2"
android:layout_width="164dp"
android:layout_height="197dp"
android:layout_marginBottom="300dp"
android:layout_marginEnd="24dp"
android:layout_marginStart="17dp"
android:layout_marginTop="8dp"
android:clickable="true"
android:elevation="3dp"
android:focusable="true"
android:foreground="?android:selectableItemBackground"
app:layout_constraintBottom_toTopOf="@+id/guideline10"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.64"
app:layout_constraintStart_toStartOf="@+id/guideline5"
app:layout_constraintTop_toTopOf="@+id/guideline3"
app:layout_constraintVertical_bias="0.0"
android:layout_marginRight="24dp"
android:layout_marginLeft="17dp">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<ImageView
android:id="@+id/thumbnail2"
android:layout_width="164dp"
android:layout_height="170dp"
android:layout_marginLeft="3dp"
android:layout_marginRight="3dp"
android:layout_marginTop="3dp"
android:background="?attr/selectableItemBackgroundBorderless"
android:clickable="true"
android:scaleType="centerInside"
app:srcCompat="@drawable/two" />
<TextView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_alignParentBottom="true"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:layout_below="@id/thumbnail2"
android:paddingLeft="10dp"
android:paddingRight="10dp"
android:paddingTop="0dp"
android:text="example 2" />
</RelativeLayout>
</android.support.v7.widget.CardView>
<android.support.v7.widget.CardView
android:id="@+id/cardview5"
android:layout_width="164dp"
android:layout_height="160dp"
android:layout_marginEnd="8dp"
android:layout_marginLeft="16dp"
android:layout_marginStart="8dp"
android:layout_marginTop="24dp"
android:clickable="true"
android:elevation="3dp"
android:focusable="true"
android:foreground="?android:selectableItemBackground"
app:layout_constraintBottom_toTopOf="@+id/guideline10"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.039"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/cardview2"
app:layout_constraintVertical_bias="0.0">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<ImageView
android:id="@+id/thumbnail5"
android:layout_width="164dp"
android:layout_height="130dp"
android:layout_marginLeft="6dp"
android:layout_marginRight="6dp"
android:layout_marginTop="6dp"
android:adjustViewBounds="false"
android:background="?attr/selectableItemBackgroundBorderless"
android:clickable="true"
android:cropToPadding="false"
android:scaleType="fitXY"
app:srcCompat="@drawable/exampletwo" />
<TextView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_alignParentBottom="true"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:layout_below="@id/thumbnail5"
android:paddingLeft="10dp"
android:paddingRight="10dp"
android:paddingTop="0dp"
android:text="Example 2" />
</RelativeLayout>
</android.support.v7.widget.CardView>
<android.support.design.widget.AppBarLayout
android:id="@+id/appbar"
android:layout_width="384dp"
android:layout_height="wrap_content">
<android.support.v7.widget.Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="1"
android:background="?attr/colorPrimary"
app:layout_scrollFlags="scroll|enterAlways"
app:title="Negocio">
</android.support.v7.widget.Toolbar>
</android.support.design.widget.AppBarLayout>
<android.support.constraint.Guideline
android:id="@+id/guideline3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal"
app:layout_constraintGuide_percent="0.06" />
<android.support.constraint.Guideline
android:id="@+id/guideline5"
android:layout_width="wrap_content"
android:layout_height="929dp"
android:orientation="vertical"
app:layout_constraintGuide_begin="204dp" />
</android.support.constraint.ConstraintLayout>
</ScrollView>