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Android linearlayout未显示在recyclerview下方_Android_Xml_Android Layout_Android Recyclerview_Scrollview - Fatal编程技术网

Android linearlayout未显示在recyclerview下方

Android linearlayout未显示在recyclerview下方,android,xml,android-layout,android-recyclerview,scrollview,Android,Xml,Android Layout,Android Recyclerview,Scrollview,在我的布局中,我有产品列表的recyclerview..在下面,我在linearlayout中显示总价…但在滚动页面上,linearlayout没有显示 我的代码场景: 1-->当我在recyclerview-->linearlayout上有一个项目时,显示良好 2-->当我在recyclerview-->上有更多项目时,无法看到向下滚动的线性布局(线性布局未显示) 第二场需要帮助…提前谢谢 以下是xml代码:-- 需要帮助您尚未添加权重和方向值​​用于线性布局 您可以使用嵌套的ScrollVi

在我的布局中,我有产品列表的recyclerview..在下面,我在linearlayout中显示总价…但在滚动页面上,linearlayout没有显示

我的代码场景:

1-->当我在recyclerview-->linearlayout上有一个项目时,显示良好

2-->当我在recyclerview-->上有更多项目时,无法看到向下滚动的线性布局(线性布局未显示)

第二场需要帮助…提前谢谢

以下是xml代码:--


需要帮助

您尚未添加权重和方向值​​用于线性布局


您可以使用嵌套的ScrollView而不是ScrollView。并将RecyclerView和LinearLayout放在NestedScrollView中。并启用android:nestedScrollingEnabled=true。应该对你有用

<NestedScrollView 
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:nestedScrollingEnabled=true>
      <LinearLayout 
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical">

<androidx.recyclerview.widget.RecyclerView
        android:id="@+id/recyleview"
        android:layout_width="match_parent"
        android:layout_height="0dp"
        app:layout_constraintBottom_toTopOf="@id/linearlayoutorder"
        app:layout_constraintTop_toBottomOf="@id/relative" />

    <LinearLayout
        android:id="@+id/linearlayoutorder"
        android:layout_width="match_parent"
        android:layout_height="100dp"
        android:background="#000000"
        android:backgroundTintMode="@color/colorPrimary"
        android:orientation="horizontal"
        android:weightSum="2"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent">

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="center"
            android:layout_weight="1"
            android:text="TOTAL" />

        <TextView
            android:id="@+id/totalidcost"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="right|center"
            android:layout_weight="1"
            android:textAlignment="textEnd"
            tools:ignore="RtlCompat" />
    </LinearLayout>
</LinearLayout>


在java类中,您的recyclerview集合
recyclerview.setNestedScrollingEnabled(true或false)

像这样使用ConstraintLayout,下面是您需要的完整xml代码

<?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">

    <RelativeLayout
        android:id="@+id/relative"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"
        app:layout_constraintTop_toTopOf="parent">

        <androidx.appcompat.widget.Toolbar
            android:id="@+id/toolbartable"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:background="@color/colorPrimaryDark"
            app:collapseIcon="@drawable/back" />

    </RelativeLayout>

    <androidx.recyclerview.widget.RecyclerView
        android:id="@+id/recyleview"
        android:layout_width="match_parent"
        android:layout_height="0dp"
        app:layout_constraintBottom_toTopOf="@id/linearlayoutorder"
        app:layout_constraintTop_toBottomOf="@id/relative" />

    <LinearLayout
        android:id="@+id/linearlayoutorder"
        android:layout_width="match_parent"
        android:layout_height="100dp"
        android:background="#000000"
        android:backgroundTintMode="@color/colorPrimary"
        android:orientation="horizontal"
        android:weightSum="2"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent">

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="center"
            android:layout_weight="1"
            android:text="TOTAL" />

        <TextView
            android:id="@+id/totalidcost"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="right|center"
            android:layout_weight="1"
            android:textAlignment="textEnd"
            tools:ignore="RtlCompat" />
    </LinearLayout>
</androidx.constraintlayout.widget.ConstraintLayout>

以下解决方案适合我:-

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
xmlns:app="http://schemas.android.com/apk/res-auto">
<RelativeLayout
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:id="@+id/relative">
    <androidx.appcompat.widget.Toolbar
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        app:collapseIcon="@drawable/ic_arrow_back_black_24dp"

        android:id="@+id/toolbartable"
        android:background="@color/colorPrimaryDark">

    </androidx.appcompat.widget.Toolbar>

</RelativeLayout>

 <androidx.core.widget.NestedScrollView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/nest"
android:scrollbars="vertical"
android:layout_below="@id/relative">
<RelativeLayout
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:orientation="vertical">
  <androidx.recyclerview.widget.RecyclerView
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
      android:nestedScrollingEnabled="false"
      android:id="@+id/recyleview"/>
<LinearLayout
    android:layout_width="match_parent"
    android:layout_height="100dp"
    android:id="@+id/linearlayoutorder"
     android:layout_below="@id/recyleview"
    android:orientation="horizontal"
    android:weightSum="2"
    android:background="@drawable/border"
    android:backgroundTintMode="@color/colorPrimary">
    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="TOTAL"
        android:layout_gravity="center"
        android:layout_weight="1"></TextView>
    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_weight="1"
        android:id="@+id/totalidcost"
        android:layout_gravity="right|center"
        android:textAlignment="textEnd"
        tools:ignore="RtlCompat"></TextView>
</LinearLayout>
</RelativeLayout>
</androidx.core.widget.NestedScrollView>
 </RelativeLayout>


没有,我做了更改..但不起作用。。。情况仍然相同您不必在scroll view中使用Recyclerview。删除scrollview后,好的。情况仍然相同…滚动Recyclerview后未显示我在Recyclerview中嵌套了scrolling false我得到错误==>原因:android.view.InflateException:二进制XML文件行#34:scrollview只能承载一个直接由以下原因导致的子项:java.lang.IllegalStateException:ScrollView只能承载一个直接子项只需在nestedScrollView中创建linearLayout或RelativeLayout作为视图的父项。那你应该没事了。我将用层次结构更新我的答案。但是如果删除该项,它仍然占用空间吗?
<NestedScrollView 
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:nestedScrollingEnabled=true>
      <LinearLayout 
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical">

<androidx.recyclerview.widget.RecyclerView
        android:id="@+id/recyleview"
        android:layout_width="match_parent"
        android:layout_height="0dp"
        app:layout_constraintBottom_toTopOf="@id/linearlayoutorder"
        app:layout_constraintTop_toBottomOf="@id/relative" />

    <LinearLayout
        android:id="@+id/linearlayoutorder"
        android:layout_width="match_parent"
        android:layout_height="100dp"
        android:background="#000000"
        android:backgroundTintMode="@color/colorPrimary"
        android:orientation="horizontal"
        android:weightSum="2"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent">

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="center"
            android:layout_weight="1"
            android:text="TOTAL" />

        <TextView
            android:id="@+id/totalidcost"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="right|center"
            android:layout_weight="1"
            android:textAlignment="textEnd"
            tools:ignore="RtlCompat" />
    </LinearLayout>
</LinearLayout>
<?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">

    <RelativeLayout
        android:id="@+id/relative"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"
        app:layout_constraintTop_toTopOf="parent">

        <androidx.appcompat.widget.Toolbar
            android:id="@+id/toolbartable"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:background="@color/colorPrimaryDark"
            app:collapseIcon="@drawable/back" />

    </RelativeLayout>

    <androidx.recyclerview.widget.RecyclerView
        android:id="@+id/recyleview"
        android:layout_width="match_parent"
        android:layout_height="0dp"
        app:layout_constraintBottom_toTopOf="@id/linearlayoutorder"
        app:layout_constraintTop_toBottomOf="@id/relative" />

    <LinearLayout
        android:id="@+id/linearlayoutorder"
        android:layout_width="match_parent"
        android:layout_height="100dp"
        android:background="#000000"
        android:backgroundTintMode="@color/colorPrimary"
        android:orientation="horizontal"
        android:weightSum="2"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent">

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="center"
            android:layout_weight="1"
            android:text="TOTAL" />

        <TextView
            android:id="@+id/totalidcost"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="right|center"
            android:layout_weight="1"
            android:textAlignment="textEnd"
            tools:ignore="RtlCompat" />
    </LinearLayout>
</androidx.constraintlayout.widget.ConstraintLayout>
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
xmlns:app="http://schemas.android.com/apk/res-auto">
<RelativeLayout
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:id="@+id/relative">
    <androidx.appcompat.widget.Toolbar
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        app:collapseIcon="@drawable/ic_arrow_back_black_24dp"

        android:id="@+id/toolbartable"
        android:background="@color/colorPrimaryDark">

    </androidx.appcompat.widget.Toolbar>

</RelativeLayout>

 <androidx.core.widget.NestedScrollView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/nest"
android:scrollbars="vertical"
android:layout_below="@id/relative">
<RelativeLayout
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:orientation="vertical">
  <androidx.recyclerview.widget.RecyclerView
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
      android:nestedScrollingEnabled="false"
      android:id="@+id/recyleview"/>
<LinearLayout
    android:layout_width="match_parent"
    android:layout_height="100dp"
    android:id="@+id/linearlayoutorder"
     android:layout_below="@id/recyleview"
    android:orientation="horizontal"
    android:weightSum="2"
    android:background="@drawable/border"
    android:backgroundTintMode="@color/colorPrimary">
    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="TOTAL"
        android:layout_gravity="center"
        android:layout_weight="1"></TextView>
    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_weight="1"
        android:id="@+id/totalidcost"
        android:layout_gravity="right|center"
        android:textAlignment="textEnd"
        tools:ignore="RtlCompat"></TextView>
</LinearLayout>
</RelativeLayout>
</androidx.core.widget.NestedScrollView>
 </RelativeLayout>