CODEWITHSUNDEEP
androidandroid-cardview
Ivan Fazaniuk
Ivan Fazaniuk

Reputation: 1070

Android CardView remove padding

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

enter image description here

<?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>

Upvotes: 51

Views: 37188

Answers (5)

George
George

Reputation: 419

I previously specifically defined the height of the cardview - after changing it to "wrap_content", the issue was resolved.

Upvotes: 0

Ali Bagheri
Ali Bagheri

Reputation: 3419

use this:

cardView.setPadding(0,0,0,0);
cardView.setUseCompatPadding(true);
cardView.setContentPadding(-6,-6,-6,-6);
cardView.setPreventCornerOverlap(false);

Upvotes: 2

Shoeb Siddique
Shoeb Siddique

Reputation: 2825

Please remove this from your code - 

card_view:cardUseCompatPadding="true"

Upvotes: 8

s-hunter
s-hunter

Reputation: 25816

Got the same problem and this worked for me.

app:cardPreventCornerOverlap="false"

For device with API < 21, I had to make a custom ImageView class, override the onDraw to draw the round corners.

@Override
protected void onDraw(Canvas canvas) {
    float radius = getContext().getResources().getDimension(R.dimen.card_corner_radius);
    Path path = new Path();
    RectF rect = new RectF(0, 0, this.getWidth(), this.getHeight());
    path.addRoundRect(rect, radius, radius, Path.Direction.CW);
    canvas.clipPath(path);
    super.onDraw(canvas);
}

Upvotes: 6

fahmy
fahmy

Reputation: 3672

UDPATE

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

card_view:cardPreventCornerOverlap="false"

or using java:

cardView.setPreventCornerOverlap(false)

You can read all about it here.

ORIGINAL ANSWER

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"

or using java:

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

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

Upvotes: 83

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