Android L cards using CardView

Question

I am having a play with the new Android L SDK and I can't figure out how to implement CardView. Seems like I'm missing something - any advice is very much appreciated!

So far I have the following declared as part of my activity:

<android.support.v7.widget.CardView
    xmlns:card_view="http://schemas.android.com/apk/res-auto"
    android:id="@+id/card_view"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_marginTop="10dp"
    android:layout_marginRight="10dp"
    android:layout_marginLeft="10dp"
    android:layout_below="@+id/waitingHeader"
    card_view:cardCornerRadius="4dp">

    <LinearLayout
        android:id="@+id/card_linear_layout"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal">
        <TextView
            android:id="@+id/notificationText"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:text="hello"/>
        <TextView
            android:id="@+id/notificationTex"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:text="hello2"/>
    </LinearLayout>
</android.support.v7.widget.CardView>

Naively I was hoping that would give me two cards with hello and hello2 however all I see is a single card with hello - the second card is missing. How can I create multiple cards using CardView?

Answer 1

Think of cardview as ViewGroup Like linear layout or Relative layout. If you want two cardview then use two cardview and keep root layout as Linear or Relative Layout.

  <android.support.v7.widget.CardView
        xmlns:card_view="http://schemas.android.com/apk/res-auto"
        android:id="@+id/card_view"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginTop="10dp"
        android:layout_marginRight="10dp"
        android:layout_marginLeft="10dp"
        android:layout_below="@+id/waitingHeader"
        card_view:cardCornerRadius="4dp">

     <TextView
                android:id="@+id/notificationText"
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:text="hello"/>
    </android.support.v7.widget.CardView>

  <android.support.v7.widget.CardView
        xmlns:card_view="http://schemas.android.com/apk/res-auto"
        android:id="@+id/card_view2"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginTop="10dp"
        android:layout_marginRight="10dp"
        android:layout_marginLeft="10dp"
        android:layout_below="@+id/waitingHeader"
        card_view:cardCornerRadius="4dp">

     <TextView
            android:id="@+id/notificationTex"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:text="hello2"/>
    </android.support.v7.widget.CardView>