Search code examples
androidbackground-colorandroid-cardview

get Cardview Background Color


I Set a Random Color for CardView In Android.

Random rnd = new Random();
        int color = Color.argb(255, rnd.nextInt(256), rnd.nextInt(256), rnd.nextInt(256));
        holder.cardView.setBackgroundColor(color);

How To Get Cardview Background Color at Runtime Programmatically?


Solution

  • You can simply initialize a CardView and set an id:

    as an example in your .xml file in res/layout:

    <android.support.v7.widget.CardView
        xmlns:app="http://schemas.android.com/apk/res-auto"
        xmlns:android="http://schemas.android.com/apk/res/android"
        android:id="@+id/CardView"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        app:cardElevation="10dp"
        app:cardCornerRadius="4dp"
        app:cardBackgroundColor="@color/cardview_dark_background"
        android:background="@color/cardview_dark_background">
    

    and then initalize it in your Activity/Fragment so:

     CardView cardView = (CardView) findViewById(R.id.CardView);
     cardView.getCardBackgroundColor();
    

    note that this method returns a ColorStateList rather than a single color value

    so to get a single color value just call:

    int backgroundColor = cardView.getCardBackgroundColor().getDefaultColor();