android - Why setting shapeAppearanceModel in MaterialCardView stops childclipping?

Question

My usecase is to edit shapeAppearanceModel for com.google.android.material.card.MaterialCardView

card.shapeAppearanceModel = card.shapeAppearanceModel
            .toBuilder()
            .setTopEdge(TriangleEdgeTreatment(triangleSize))
            .build()

Above code is working as expected But due to above programatically setup of shapeAppearanceModel

xml

 <com.google.android.material.card.MaterialCardView
        android:id="@+id/card"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        app:cardBackgroundColor="?myCustomColor"
        app:cardCornerRadius="8dp"
        app:cardElevation=4dp"
        app:cardPreventCornerOverlap="true"
        app:cardUseCompatPadding="false">

    <ImageView
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:scaleType="fitXY"
            android:src="@drawable/myImageDrawable"
            app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintTop_toTopOf="parent" />
</com.google.android.material.card.MaterialCardView>

In Android studio as the TopEdge is define programatically Editor is not replicating the bug but in Emulator/Real device the child is not getting clipped and The Rounded Corners are getting overlapped by ImageView.

And when i remove the shapeAppearanceModel setup the clipping work's as expected.

ScreenShot

question from:https://stackoverflow.com/questions/65889328/why-setting-shapeappearancemodel-in-materialcardview-stops-childclipping

Answer 1

Waitting for answers