Material-components-android: [MaterialShapeDrawable] Unable to add gradient to MaterialShapeDrawable

[railianmaksym]

Is your feature request related to a problem? Please describe.
A have a lot of cases when I need to use a gradient with material shapes, but I can't do it because
MaterialShapeDrawable used the only fillColor.
If I want to use gradient or another drawable view with MaterialShapeDrawable becomes black.

Describe the solution you'd like
Add the possibility to use drawables with MaterialShapeDrawable.

[wcshi]

"A have a lot of cases when I need to use a gradient with material shapes", could you please explain what they are?

[vitorhugods]

Simple widgets with gradient background, like this:

Floating Action Button:

Chip:

Button:

[Shusshu]

Would be great if FloatingActionButton supported custom backgrounds like MaterialButton and ExtendedFloatingButton (which extends MaterialButton)

[TurKurT656]

FloatingActionButton does not supports custom backgrounds. (for example gradient background)
It would be great if we have this functionality

[Shusshu]

I found a workaround to get it with not too much work
Use ExtendedFloatingActionButton without label (shrinked) and override the background (as it's a MaterialButton you can just do it)

[TurKurT656]

I found a workaround to get it with not too much work
Use ExtendedFloatingActionButton without label (shrinked) and override the background (as it's a MaterialButton you can just do it)

can you add a link or sample code?

[Shusshu]

    extendedFab.backgroundTintList = null
    extendedFab.setBackgroundResource(R.drawable.btn_extendedfab_shrinked_gradient)

R.drawable.btn_extendedfab_shrinked_gradient

<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:drawable="@drawable/btn_shape_extendedfab_shrinked_disabled" android:state_enabled="false" />

    <item android:state_enabled="true">
        <ripple android:color="?attr/colorControlHighlight">
            <item android:drawable="@drawable/btn_shape_extendedfab_shrinked_gradient" />
        </ripple>
    </item>
</selector>

btn_shape_extendedfab_shrinked_gradient

    <?xml version="1.0" encoding="utf-8"?>
    <inset xmlns:android="http://schemas.android.com/apk/res/android">
      <shape android:shape="rectangle">
        <corners android:radius="56dp" />
        <gradient
                android:angle="90"
                android:endColor="#000000"
                android:startColor="#ffffff"
                android:type="linear" />
        <padding android:left="0dp"
                android:top="0dp"
                android:right="0dp"
                android:bottom="0dp" />
      </shape>
    </inset>