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CardViewを横いっぱいに広げる

Last updated at Posted at 2017-10-13

CardViewの使い方メモ

#こまったこと
CardView内の各要素のlayout_widthを"match_parent"に設定しても、CardViewが横いっぱいに広がらない。
イメージ3.png

※使用したソースコード

<?xml version="1.0" encoding="utf-8"?>
<android.support.v7.widget.CardView
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:card_view="http://schemas.android.com/apk/res-auto"
    android:id="@+id/cardView"
    android:layout_marginBottom="10dp"
    card_view:cardBackgroundColor="#ffc"
    card_view:cardCornerRadius="7dp"
    card_view:cardElevation="5dp"
    android:layout_width="match_parent"
    android:layout_height="wrap_content">

    <TableLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content">

        <TableRow
            android:layout_width="wrap_content"
            android:layout_height="wrap_content">

            <TextView
                android:layout_weight="7"
                android:layout_width="0dp"
                android:id="@+id/pointView"
                android:textSize="15sp"/>

            <!--0dpがないと、@+id/titleViewの文字列長にあわせて、レイアウト比率がずれる-->
            <TextView
                android:layout_weight="3"
                android:layout_width="0dp"
                android:text="test"/>

        </TableRow>

        <TableRow
            android:layout_width="wrap_content"
            android:layout_height="wrap_content">

            <TextView
                android:id="@+id/titleView"
                android:textSize="15sp"/>

        </TableRow>

    </TableLayout>

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

#解決方法

CardViewを乗せるRecycleLayoutのlayout_widthを、"wrap_content"からmatch_parent"に変更する。
        <android.support.v7.widget.RecyclerView
            android:id="@+id/rv"
            android:layout_width="match_parent"
            android:layout_height="match_parent">
        </android.support.v7.widget.RecyclerView>

解決した
image1.png

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