Android CardView删除填充 [英] Android CardView remove padding

问题描述

如何在下面的布局中摆脱这种奇怪的填充物:

how do I get rid of this strange padding in the layout below:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:card_view="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    android:background="@color/ColorPrimaryDark">

    <android.support.v7.widget.CardView
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        card_view:cardCornerRadius="10dp"
        android:layout_marginTop="9dp"
        android:layout_marginLeft="9dp"
        android:layout_marginRight="9dp"
        card_view:cardElevation="0.01dp"
        android:layout_marginBottom="0dp"
        card_view:cardPreventCornerOverlap="true"
        card_view:cardUseCompatPadding="true"
        card_view:cardBackgroundColor="@color/ColorPrimary">

        <RelativeLayout
            android:id="@+id/top_layout"
            android:layout_width="fill_parent"
            android:layout_height="180dp"
            android:background="@color/ColorPrimary">

            <ImageView
                android:id="@+id/img_thumbnail"
                android:layout_width="fill_parent"
                android:layout_height="180dp"
                android:scaleType="fitXY"
                android:background="@drawable/korabltest"/>

            <RelativeLayout
                android:id="@+id/inner_layout"
                android:layout_width="fill_parent"
                android:layout_height="36dp"
                android:background="#5c1b1b1b"
                android:layout_gravity="bottom"
                android:layout_alignParentBottom="true"
                android:layout_alignParentLeft="true"
                android:layout_alignParentStart="true">

                <TextView
                    android:id="@+id/tv_nature"
                    android:layout_width="wrap_content"
                    android:layout_height="50dp"
                    android:paddingLeft="5dp"
                    android:paddingRight="5dp"
                    android:layout_gravity="bottom"
                    android:gravity="center_vertical"
                    android:alpha="0.8"
                    android:textColor="#fff"
                    android:textSize="18sp"
                    android:text="Lexington"
                    android:layout_alignParentLeft="true"
                    android:layout_alignParentStart="true" />

                <TextView
                    android:id="@+id/tv_nature_1"
                    android:layout_width="wrap_content"
                    android:layout_height="50dp"
                    android:paddingLeft="5dp"
                    android:paddingRight="5dp"
                    android:layout_gravity="bottom"
                    android:gravity="center_vertical"
                    android:alpha="0.8"
                    android:textColor="#fff"
                    android:textSize="18sp"
                    android:textStyle="bold"
                    android:text="527 (31%)"
                    android:layout_alignParentBottom="true"
                    android:layout_alignParentRight="true"
                    android:layout_alignParentEnd="true" />
            </RelativeLayout>
        </RelativeLayout>
    </android.support.v7.widget.CardView>

</LinearLayout>

推荐答案

UDPATE

好吧，似乎有一种更简单的方法，而不必猜测填充和所有内容:

Well, seems there is a much easier way to do it, without guessing the padding and all:

card_view:cardPreventCornerOverlap="false"

或使用Java:

cardView.setPreventCornerOverlap(false)

您可以在此处阅读所有内容.

原始答案

这是一个有意的填充，以避免在棒棒糖之前的版本中内容从卡的圆角处渗出(因为不提供剪切功能).如果要一并消除，则可以在棒棒糖之前的版本中为CardView的contentPadding属性使用负填充，例如:

It is an intentional padding to avoid content from bleeding off the rounded corner of the card in pre lollipop versions (since clipping is not available). If you want to get rid of it all together you may use a negative padding in pre-lollipop versions for the contentPadding attribute of the CardView such as:

card_view:contentPadding="-8dp"

或使用Java:

int padding = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 8, getResources().getDisplayMetrics());
cardView.setContentPadding(-padding,-padding,-padding,-padding);

我不确定哪个值可以无缝运行，您需要进行实验并亲自观察.

I'm not particularly sure which value will work seamlessly, you'll need to experiment and see for yourself.

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