android - CardView with different corner radius

Question

I have the following CardView and I want to set different radius for each corner in the card. Is it possible to change them by XML or programmaticaly? Thanks in advance.

<android.support.v7.widget.CardView 
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_marginRight="16dp"
    android:layout_marginLeft="16dp"
    android:layout_marginTop="5dp"
    android:layout_marginBottom="5dp"
    app:cardCornerRadius="0dp"
    app:cardElevation="0dp">
</android.support.v7.widget.CardView>

EDIT As Avinash suggest, I am looking for the behaviour of this lib github.com/captain-miao/OptionRoundCardview but using the default CardView item. If it is not possible to change it individually, this lib is a good approach.

Answer 1

It requires the official MaterialCardView (which extends the androidx.cardview.widget.CardView) and at least the version 1.1.0 of the Material components library.

Add to your layout the MaterialCardView:

    <com.google.android.material.card.MaterialCardView
        style="@style/CustomCardViewStyle"
        ...>
      
    </com.google.android.material.card.MaterialCardView>

Define a custom style inheriting a material card style (for example Widget.MaterialComponents.CardView) and use the shapeAppearanceOverlay attribute:

  <style name="CustomCardViewStyle" parent="@style/Widget.MaterialComponents.CardView">
     <item name="shapeAppearanceOverlay">@style/ShapeAppearanceOverlay_card_custom_corners</item>
  </style>


  <style name="ShapeAppearanceOverlay_card_custom_corners" parent="">
    <item name="cornerFamily">rounded</item>
    <item name="cornerSizeTopRight">4dp</item>
    <item name="cornerSizeTopLeft">8dp</item>
    <item name="cornerSizeBottomRight">16dp</item>
    <item name="cornerSizeBottomLeft">0dp</item>
  </style>

You can also achieve it programmatically.
Just apply a custom ShapeAppearanceModel to the corners of the card.
Something like:

float radius = getResources().getDimension(R.dimen.my_corner_radius);
cardView.setShapeAppearanceModel(
  cardView.getShapeAppearanceModel()
      .toBuilder()
      .setTopLeftCorner(CornerFamily.ROUNDED,..)
      .setTopRightCorner(CornerFamily.ROUNDED,..)
      .setBottomRightCorner(CornerFamily.ROUNDED,radius)
      .setBottomLeftCornerSize(0)
      .build());

Note: it requires the version 1.1.0 of the library.

---

With Jetpack compose 1.0.x you can use the shape parameter in the Card.

Something like:

    Card(
        shape = RoundedCornerShape(
           4.dp,
           8.dp,
           16.dp,
           2.dp)
    ){
        Text("Content Card")
    }