Programmatically set '?selectableItemBackground' on Android view
For appcompat you can use,
TypedValue outValue = new TypedValue();
getContext().getTheme().resolveAttribute(android.R.attr.selectableItemBackground, outValue, true);
cardView.setBackgroundResource(outValue.resourceId);
For those who work with Kotlin, here are some extensions functions to add Ripple on Android View type :
private fun View.addRipple() = with(TypedValue()) {
context.theme.resolveAttribute(android.R.attr.selectableItemBackground, this, true)
setBackgroundResource(resourceId)
}
private fun View.addCircleRipple() = with(TypedValue()) {
context.theme.resolveAttribute(android.R.attr.selectableItemBackgroundBorderless, this, true)
setBackgroundResource(resourceId)
}