Make ImageView fit width of CardView

Question

I have a CardView with rounded corners, I want to have an ImageView at the top like shown in the example taken from the material design guidelines

Answer 1

I tried using the MaskedCardView and worked for me

    class MaskedCardView @JvmOverloads constructor(
    context: Context,
    attrs: AttributeSet? = null,
    defStyle: Int = R.attr.materialCardViewStyle
) : MaterialCardView(context, attrs, defStyle) {
    @SuppressLint("RestrictedApi")
    private val pathProvider = ShapeAppearancePathProvider()
    private val path: Path = Path()
    private val shapeAppearance: ShapeAppearanceModel = ShapeAppearanceModel.builder(
        context,
        attrs,
        defStyle,
        R.style.Widget_MaterialComponents_CardView
    ).build()

    private val rectF = RectF(0f, 0f, 0f, 0f)

    override fun onDraw(canvas: Canvas) {
        canvas.clipPath(path)
        super.onDraw(canvas)
    }

    @SuppressLint("RestrictedApi")
    override fun onSizeChanged(w: Int, h: Int, oldw: Int, oldh: Int) {
        rectF.right = w.toFloat()
        rectF.bottom = h.toFloat()
        pathProvider.calculatePath(shapeAppearance, 1f, rectF, path)
        super.onSizeChanged(w, h, oldw, oldh)
    }
}

And use with it the attribute app:cardPreventCornerOverlap="false"