小编Shu*_*ian的帖子

我无法删除CardView的默认边框.以前有人遇到过这个问题吗？

两条边界线重叠

CardviewDesign.xml

<android.support.v7.widget.CardView
    xmlns:android="https://schemas.android.com/apk/res/android"
    xmlns:android2="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:card_view="https://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/card_view"
    android:layout_width="match_parent"

    android2:layout_marginTop="5dp"
    android2:layout_marginLeft="5dp"
    android2:layout_marginRight="5dp"
    android2:layout_gravity="center|top"

    card_view:cardCornerRadius="20dp"
    android2:layout_width="match_parent"
    android2:layout_height="wrap_content">

<FrameLayout
    android2:layout_width="match_parent"
    android2:layout_height="400dp"

    android2:background="@drawable/cardviewstring">



    <LinearLayout
        android2:orientation="vertical"
        android2:layout_width="380dp"
        android2:layout_height="match_parent"


        android2:weightSum="1"
        android2:layout_marginRight="20dp">

        <LinearLayout
            android2:orientation="vertical"
            android2:layout_width="match_parent"
            android2:layout_weight="1"
            android2:layout_height="250dp">

            <ImageView
                android2:layout_width="match_parent"
                android2:layout_height="match_parent"
                app:srcCompat="@mipmap/ic_launcher"
                android2:id="@+id/imageView4" />

        </LinearLayout>

        <LinearLayout
            android2:orientation="vertical"
            android2:layout_width="match_parent"
            android2:layout_height="wrap_content"
            android2:paddingTop="25dp">

            <ScrollView
                android2:layout_width="match_parent"
                android2:layout_height="84dp"
                android2:background="@drawable/screen_background_dark_transparent"
                android2:layout_marginLeft="3dp">

                <LinearLayout
                    android2:layout_width="match_parent"
                    android2:layout_height="wrap_content"
                    android2:orientation="vertical" >

                    <TextView
                        android2:text="TextView"
                        android2:layout_width="match_parent"
                        android2:layout_height="wrap_content"
                        android2:id="@+id/textView4" />

                    <TextView
                        android2:text="TextView"
                        android2:layout_width="match_parent"
                        android2:layout_height="35dp"
                        android2:id="@+id/textView3" />
                </LinearLayout>
            </ScrollView>

        </LinearLayout>

        <LinearLayout
            android2:orientation="vertical"
            android2:layout_marginTop="10dp"
            android2:layout_width="match_parent"
            android2:layout_height="42dp"
            android:layout_alignParentBottom="true">

            <LinearLayout
                android2:orientation="horizontal"
                android2:layout_width="match_parent"
                android2:layout_height="match_parent"> …