Android 带有 RecyclerView 的 ScrollView 比我预期的要短
Android ScrollView with RecyclerView is shorter than I expected
我在ScrollView里面有两个RecyclerView。第二个RecyclerView名为“recyclerView_main_article”无法完全显示。我的意思是它的底部被切掉了。我试图在 RecyclerView 下添加名为 "empty" 的额外视图来制作一些 space。添加"empty"后，“recyclerView_main_article”显示完整，但"empty"比它的高度短。
这里是 XML.
<?xml version="1.0" encoding="utf-8"?>
<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:fillViewport="true"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@android:color/background_light">
<android.support.constraint.ConstraintLayout
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<View
android:id="@+id/view_title_line"
android:layout_width="5dp"
android:layout_height="24dp"
android:layout_marginLeft="8dp"
android:layout_marginStart="8dp"
android:layout_marginTop="16dp"
android:background="@color/colorPrimary"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<TextView
android:id="@+id/textView_top_movie_title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="8dp"
android:layout_marginStart="8dp"
android:text="@string/top_movie_title"
android:textColor="@color/colorPrimary"
android:textSize="20sp"
android:textStyle="bold"
app:layout_constraintBottom_toBottomOf="@+id/view_title_line"
app:layout_constraintStart_toEndOf="@+id/view_title_line" />
<TextView
android:id="@+id/textView_see_all_movies"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginEnd="8dp"
android:layout_marginRight="8dp"
android:text="@string/see_all"
app:layout_constraintBottom_toBottomOf="@+id/view_title_line"
app:layout_constraintEnd_toEndOf="parent" />
<android.support.v7.widget.RecyclerView
android:id="@+id/recyclerView_main_video"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginEnd="8dp"
android:layout_marginStart="8dp"
android:layout_marginTop="8dp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="@+id/view_title_line" />
<View
android:id="@+id/view_title_line2"
android:layout_width="5dp"
android:layout_height="24dp"
android:layout_marginLeft="8dp"
android:layout_marginStart="8dp"
android:layout_marginTop="32dp"
android:background="@color/colorPrimary"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/recyclerView_main_video" />
<TextView
android:id="@+id/textView_top_article_title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="8dp"
android:layout_marginStart="8dp"
android:text="@string/top_article_title"
android:textColor="@color/colorPrimary"
android:textSize="20sp"
android:textStyle="bold"
app:layout_constraintBottom_toBottomOf="@+id/view_title_line2"
app:layout_constraintStart_toEndOf="@+id/view_title_line2" />
<TextView
android:id="@+id/textView_see_all_articles"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginEnd="8dp"
android:layout_marginRight="8dp"
android:text="@string/see_all"
app:layout_constraintBottom_toBottomOf="@+id/view_title_line2"
app:layout_constraintEnd_toEndOf="parent" />
<android.support.v7.widget.RecyclerView
android:id="@+id/recyclerView_main_article"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginEnd="8dp"
android:layout_marginStart="8dp"
android:layout_marginTop="8dp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="@+id/view_title_line2" />
<!--<View
android:id="@+id/empty"
android:layout_width="match_parent"
android:layout_height="200dp"
android:background="@android:color/holo_orange_dark"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toBottomOf="@+id/recyclerView_main_article" />-->
</android.support.constraint.ConstraintLayout>
</ScrollView>
我通过这个 Kotlin 代码将 HORIZONTAL 应用到 RecyclerViews。
recyclerView_main_video.layoutManager = LinearLayoutManager(this, OrientationHelper.HORIZONTAL, false)
recyclerView_main_article.layoutManager = LinearLayoutManager(this, OrientationHelper.HORIZONTAL, false)
我使用 Android Studio 3.0.1，我的 recyclerview 版本是 26.1.0。
implementation 'com.android.support:recyclerview-v7:26.1.0'
我该怎么办？？我需要你的帮助。
尝试使用 NestedScrollView 而不是 ScrollView
在 ScrollView 中使用 RecyclerView 是个坏主意，最佳做法是使用 recyclerview 并将要滚动的所有内容放入其中。如果您的回收物品上方有一些视图，只需使用自己的 viewHolder 制作一个 header 并将其放在您的 recyclerView
的第一个位置
Change ScrollView to NestedScrollView
Add android:paddingBottom="50dp" android:clipToPadding="false" in second recyclerview
对于
试试这个：
<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.NestedScrollView 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:fillViewport="true"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@android:color/background_light">
<android.support.constraint.ConstraintLayout
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<View
android:id="@+id/view_title_line"
android:layout_width="5dp"
android:layout_height="24dp"
android:layout_marginLeft="8dp"
android:layout_marginStart="8dp"
android:layout_marginTop="16dp"
android:background="@color/colorPrimary"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<TextView
android:id="@+id/textView_top_movie_title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="8dp"
android:layout_marginStart="8dp"
android:text="@string/top_movie_title"
android:textColor="@color/colorPrimary"
android:textSize="20sp"
android:textStyle="bold"
app:layout_constraintBottom_toBottomOf="@+id/view_title_line"
app:layout_constraintStart_toEndOf="@+id/view_title_line" />
<TextView
android:id="@+id/textView_see_all_movies"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginEnd="8dp"
android:layout_marginRight="8dp"
android:text="@string/see_all"
app:layout_constraintBottom_toBottomOf="@+id/view_title_line"
app:layout_constraintEnd_toEndOf="parent" />
<android.support.v7.widget.RecyclerView
android:id="@+id/recyclerView_main_video"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginEnd="8dp"
android:layout_marginStart="8dp"
android:layout_marginTop="8dp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="@+id/view_title_line" />
<View
android:id="@+id/view_title_line2"
android:layout_width="5dp"
android:layout_height="24dp"
android:layout_marginLeft="8dp"
android:layout_marginStart="8dp"
android:layout_marginTop="32dp"
android:background="@color/colorPrimary"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/recyclerView_main_video" />
<TextView
android:id="@+id/textView_top_article_title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="8dp"
android:layout_marginStart="8dp"
android:text="@string/top_article_title"
android:textColor="@color/colorPrimary"
android:textSize="20sp"
android:textStyle="bold"
app:layout_constraintBottom_toBottomOf="@+id/view_title_line2"
app:layout_constraintStart_toEndOf="@+id/view_title_line2" />
<TextView
android:id="@+id/textView_see_all_articles"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginEnd="8dp"
android:layout_marginRight="8dp"
android:text="@string/see_all"
app:layout_constraintBottom_toBottomOf="@+id/view_title_line2"
app:layout_constraintEnd_toEndOf="parent" />
<android.support.v7.widget.RecyclerView
android:id="@+id/recyclerView_main_article"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginEnd="8dp"
android:layout_marginStart="8dp"
android:paddingBottom="50dp"
android:clipToPadding="false"
android:layout_marginTop="8dp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="@+id/view_title_line2" />
<!--<View
android:id="@+id/empty"
android:layout_width="match_parent"
android:layout_height="200dp"
android:background="@android:color/holo_orange_dark"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toBottomOf="@+id/recyclerView_main_article" />-->
</android.support.constraint.ConstraintLayout>
</android.support.v4.widget.NestedScrollView>
我在ScrollView里面有两个RecyclerView。第二个RecyclerView名为“recyclerView_main_article”无法完全显示。我的意思是它的底部被切掉了。我试图在 RecyclerView 下添加名为 "empty" 的额外视图来制作一些 space。添加"empty"后，“recyclerView_main_article”显示完整，但"empty"比它的高度短。
这里是 XML.
<?xml version="1.0" encoding="utf-8"?>
<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:fillViewport="true"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@android:color/background_light">
<android.support.constraint.ConstraintLayout
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<View
android:id="@+id/view_title_line"
android:layout_width="5dp"
android:layout_height="24dp"
android:layout_marginLeft="8dp"
android:layout_marginStart="8dp"
android:layout_marginTop="16dp"
android:background="@color/colorPrimary"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<TextView
android:id="@+id/textView_top_movie_title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="8dp"
android:layout_marginStart="8dp"
android:text="@string/top_movie_title"
android:textColor="@color/colorPrimary"
android:textSize="20sp"
android:textStyle="bold"
app:layout_constraintBottom_toBottomOf="@+id/view_title_line"
app:layout_constraintStart_toEndOf="@+id/view_title_line" />
<TextView
android:id="@+id/textView_see_all_movies"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginEnd="8dp"
android:layout_marginRight="8dp"
android:text="@string/see_all"
app:layout_constraintBottom_toBottomOf="@+id/view_title_line"
app:layout_constraintEnd_toEndOf="parent" />
<android.support.v7.widget.RecyclerView
android:id="@+id/recyclerView_main_video"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginEnd="8dp"
android:layout_marginStart="8dp"
android:layout_marginTop="8dp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="@+id/view_title_line" />
<View
android:id="@+id/view_title_line2"
android:layout_width="5dp"
android:layout_height="24dp"
android:layout_marginLeft="8dp"
android:layout_marginStart="8dp"
android:layout_marginTop="32dp"
android:background="@color/colorPrimary"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/recyclerView_main_video" />
<TextView
android:id="@+id/textView_top_article_title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="8dp"
android:layout_marginStart="8dp"
android:text="@string/top_article_title"
android:textColor="@color/colorPrimary"
android:textSize="20sp"
android:textStyle="bold"
app:layout_constraintBottom_toBottomOf="@+id/view_title_line2"
app:layout_constraintStart_toEndOf="@+id/view_title_line2" />
<TextView
android:id="@+id/textView_see_all_articles"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginEnd="8dp"
android:layout_marginRight="8dp"
android:text="@string/see_all"
app:layout_constraintBottom_toBottomOf="@+id/view_title_line2"
app:layout_constraintEnd_toEndOf="parent" />
<android.support.v7.widget.RecyclerView
android:id="@+id/recyclerView_main_article"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginEnd="8dp"
android:layout_marginStart="8dp"
android:layout_marginTop="8dp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="@+id/view_title_line2" />
<!--<View
android:id="@+id/empty"
android:layout_width="match_parent"
android:layout_height="200dp"
android:background="@android:color/holo_orange_dark"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toBottomOf="@+id/recyclerView_main_article" />-->
</android.support.constraint.ConstraintLayout>
</ScrollView>
我通过这个 Kotlin 代码将 HORIZONTAL 应用到 RecyclerViews。
recyclerView_main_video.layoutManager = LinearLayoutManager(this, OrientationHelper.HORIZONTAL, false)
recyclerView_main_article.layoutManager = LinearLayoutManager(this, OrientationHelper.HORIZONTAL, false)
我使用 Android Studio 3.0.1，我的 recyclerview 版本是 26.1.0。
implementation 'com.android.support:recyclerview-v7:26.1.0'
我该怎么办？？我需要你的帮助。
尝试使用 NestedScrollView 而不是 ScrollView
在 ScrollView 中使用 RecyclerView 是个坏主意，最佳做法是使用 recyclerview 并将要滚动的所有内容放入其中。如果您的回收物品上方有一些视图，只需使用自己的 viewHolder 制作一个 header 并将其放在您的 recyclerView
Change
ScrollViewtoNestedScrollViewAdd
android:paddingBottom="50dp"android:clipToPadding="false"in secondrecyclerview
对于
试试这个：
<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.NestedScrollView 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:fillViewport="true"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@android:color/background_light">
<android.support.constraint.ConstraintLayout
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<View
android:id="@+id/view_title_line"
android:layout_width="5dp"
android:layout_height="24dp"
android:layout_marginLeft="8dp"
android:layout_marginStart="8dp"
android:layout_marginTop="16dp"
android:background="@color/colorPrimary"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<TextView
android:id="@+id/textView_top_movie_title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="8dp"
android:layout_marginStart="8dp"
android:text="@string/top_movie_title"
android:textColor="@color/colorPrimary"
android:textSize="20sp"
android:textStyle="bold"
app:layout_constraintBottom_toBottomOf="@+id/view_title_line"
app:layout_constraintStart_toEndOf="@+id/view_title_line" />
<TextView
android:id="@+id/textView_see_all_movies"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginEnd="8dp"
android:layout_marginRight="8dp"
android:text="@string/see_all"
app:layout_constraintBottom_toBottomOf="@+id/view_title_line"
app:layout_constraintEnd_toEndOf="parent" />
<android.support.v7.widget.RecyclerView
android:id="@+id/recyclerView_main_video"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginEnd="8dp"
android:layout_marginStart="8dp"
android:layout_marginTop="8dp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="@+id/view_title_line" />
<View
android:id="@+id/view_title_line2"
android:layout_width="5dp"
android:layout_height="24dp"
android:layout_marginLeft="8dp"
android:layout_marginStart="8dp"
android:layout_marginTop="32dp"
android:background="@color/colorPrimary"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/recyclerView_main_video" />
<TextView
android:id="@+id/textView_top_article_title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="8dp"
android:layout_marginStart="8dp"
android:text="@string/top_article_title"
android:textColor="@color/colorPrimary"
android:textSize="20sp"
android:textStyle="bold"
app:layout_constraintBottom_toBottomOf="@+id/view_title_line2"
app:layout_constraintStart_toEndOf="@+id/view_title_line2" />
<TextView
android:id="@+id/textView_see_all_articles"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginEnd="8dp"
android:layout_marginRight="8dp"
android:text="@string/see_all"
app:layout_constraintBottom_toBottomOf="@+id/view_title_line2"
app:layout_constraintEnd_toEndOf="parent" />
<android.support.v7.widget.RecyclerView
android:id="@+id/recyclerView_main_article"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginEnd="8dp"
android:layout_marginStart="8dp"
android:paddingBottom="50dp"
android:clipToPadding="false"
android:layout_marginTop="8dp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="@+id/view_title_line2" />
<!--<View
android:id="@+id/empty"
android:layout_width="match_parent"
android:layout_height="200dp"
android:background="@android:color/holo_orange_dark"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toBottomOf="@+id/recyclerView_main_article" />-->
</android.support.constraint.ConstraintLayout>
</android.support.v4.widget.NestedScrollView>