CardView Höhe wechselt nicht mit verschachtelten RecyclerView

Question

Ich habe eine verschachtelte RecyclerView, in der die übergeordnete Ansicht ist ein CardView (gif). Ich versuche, einen Swipe zu implementieren, um die Aktion von Paul Burke (link) zu löschen. Die Aktion geht gut in den inneren RecyclerView über, verursacht aber einen Sprung der äußeren CardView-Höhe (wrap_content). Gibt es eine Möglichkeit, den CardView-Übergang mit dem RecyclerView zu machen?

Inner RecyclerView:

<LinearLayout 
    xmlns:android="http://schemas.android.com/apk/res/android" 
    xmlns:tools="http://schemas.android.com/tools" 
    android:id="@+id/card_tasks_root" 
    android:orientation="vertical" 
    android:layout_marginTop="5dp" 
    android:layout_marginBottom="5dp" 
    android:layout_width="match_parent" 
    android:layout_height="wrap_content"> 

    <TextView 
     android:id="@+id/card_tasks_title" 
     android:padding="8dp" 
     android:layout_width="match_parent" 
     android:layout_height="wrap_content" 
     tools:text="section placeholder" /> 

    <android.support.v7.widget.CardView 
     android:layout_marginBottom="5dp" 
     android:layout_width="match_parent" 
     android:layout_height="wrap_content" 
     android:background="#fff" 
     android:elevation="2dp"> 

     <android.support.v7.widget.RecyclerView 
      android:id="@+id/card_tasks_rv" 
      android:background="#E0E0E0" 
      android:layout_width="match_parent" 
      android:layout_height="wrap_content"/> 

    </android.support.v7.widget.CardView> 
</LinearLayout> 

Inner Item:

<LinearLayout 
    xmlns:android="http://schemas.android.com/apk/res/android" 
    xmlns:tools="http://schemas.android.com/tools" 
    android:orientation="vertical" 
    android:background="#fff" 
    android:layout_width="match_parent" 
    android:layout_height="wrap_content"> 
    <LinearLayout 
     android:orientation="vertical" 
     android:paddingLeft="10dp" 
     android:paddingRight="10dp" 
     android:paddingTop="7dp" 
     android:paddingBottom="5dp" 
     android:layout_width="match_parent" 
     android:layout_height="wrap_content"> 
     <TextView 
      android:id="@+id/item_task_project" 
      android:layout_width="match_parent" 
      android:layout_height="wrap_content" 
      android:textSize="12sp" 
      tools:text="Project name" 
      /> 
     <TextView 
      android:id="@+id/item_task_name" 
      android:layout_width="match_parent" 
      android:layout_height="wrap_content" 
      android:paddingTop="3dp" 
      android:paddingBottom="5dp" 
      android:textSize="18dp" 
      android:textColor="#757575" 
      tools:text="Task name"/> 
    </LinearLayout> 

    <View android:id="@+id/item_task_divider" style="@style/Divider"/> 
</LinearLayout> 

Answer 1

die CardView als Mutter in Ihrem Element Layout vornehmen und diese Last in Ihrem RecyclerView, wie folgt aus:

Ihr Behälter:

<LinearLayout 
    xmlns:android="http://schemas.android.com/apk/res/android" 
    xmlns:tools="http://schemas.android.com/tools" 
    android:id="@+id/card_tasks_root" 
    android:orientation="vertical" 
    android:layout_marginTop="5dp" 
    android:layout_marginBottom="5dp" 
    android:layout_width="match_parent" 
    android:layout_height="wrap_content"> 

    <TextView 
     android:id="@+id/card_tasks_title" 
     android:padding="8dp" 
     android:layout_width="match_parent" 
     android:layout_height="wrap_content" 
     tools:text="section placeholder" /> 

     <android.support.v7.widget.RecyclerView 
      android:id="@+id/card_tasks_rv" 
      android:background="#E0E0E0" 
      android:layout_width="match_parent" 
      android:layout_height="wrap_content"/> 

</LinearLayout> 

Innerer Artikel:

<android.support.v7.widget.CardView 
    android:layout_marginBottom="5dp" 
    android:layout_width="match_parent" 
    android:layout_height="wrap_content" 
    android:background="#fff" 
    android:elevation="2dp"> 
<LinearLayout 
    android:orientation="vertical" 
    android:background="#fff" 
    android:layout_width="match_parent" 
    android:layout_height="wrap_content"> 
    <LinearLayout 
     android:orientation="vertical" 
     android:paddingLeft="10dp" 
     android:paddingRight="10dp" 
     android:paddingTop="7dp" 
     android:paddingBottom="5dp" 
     android:layout_width="match_parent" 
     android:layout_height="wrap_content"> 
     <TextView 
      android:id="@+id/item_task_project" 
      android:layout_width="match_parent" 
      android:layout_height="wrap_content" 
      android:textSize="12sp" 
      tools:text="Project name" 
      /> 
     <TextView 
      android:id="@+id/item_task_name" 
      android:layout_width="match_parent" 
      android:layout_height="wrap_content" 
      android:paddingTop="3dp" 
      android:paddingBottom="5dp" 
      android:textSize="18dp" 
      android:textColor="#757575" 
      tools:text="Task name"/> 
    </LinearLayout> 

    <View android:id="@+id/item_task_divider" style="@style/Divider"/> 
</LinearLayout> 
</android.support.v7.widget.CardView>