[ShadowDrawableWrapper] Proguard complains it can't find DrawableWrapper class from AppCompat

[alexjlockwood]

Description: When I use material-components-android 1.8.0 and AppCompat 1.6.1, I will get the following proguard error:

Warning: com.google.android.material.shadow.ShadowDrawableWrapper: can't find superclass or interface androidx.appcompat.graphics.drawable.DrawableWrapper
Warning: com.google.android.material.shadow.ShadowDrawableWrapper: can't find referenced class androidx.appcompat.graphics.drawable.DrawableWrapper
Warning: com.google.android.material.shadow.ShadowDrawableWrapper: can't find referenced class androidx.appcompat.graphics.drawable.DrawableWrapper
Warning: com.google.android.material.shadow.ShadowDrawableWrapper: can't find referenced method 'android.graphics.drawable.Drawable getWrappedDrawable()' in program class com.google.android.material.shadow.ShadowDrawableWrapper
Warning: com.google.android.material.shadow.ShadowDrawableWrapper: can't find referenced method 'android.graphics.Rect getBounds()' in program class com.google.android.material.shadow.ShadowDrawableWrapper
Warning: com.google.android.material.shadow.ShadowDrawableWrapper: can't find referenced class androidx.appcompat.graphics.drawable.DrawableWrapper
Warning: com.google.android.material.shadow.ShadowDrawableWrapper: can't find referenced method 'void invalidateSelf()' in program class com.google.android.material.shadow.ShadowDrawableWrapper
Warning: com.google.android.material.shadow.ShadowDrawableWrapper: can't find referenced class androidx.appcompat.graphics.drawable.DrawableWrapperUse --sandbox_debug to see verbose messages from the sandbox and retain the sandbox build root for debugging
Warning: com.google.android.material.shadow.ShadowDrawableWrapper: can't find superclass or interface androidx.appcompat.graphics.drawable.DrawableWrapper
Warning: com.google.android.material.shadow.ShadowDrawableWrapper: can't find referenced class androidx.appcompat.graphics.drawable.DrawableWrapper
Warning: com.google.android.material.shadow.ShadowDrawableWrapper: can't find referenced class androidx.appcompat.graphics.drawable.DrawableWrapper
Warning: com.google.android.material.shadow.ShadowDrawableWrapper: can't find referenced method 'android.graphics.drawable.Drawable getWrappedDrawable()' in program class com.google.android.material.shadow.ShadowDrawableWrapper
Warning: com.google.android.material.shadow.ShadowDrawableWrapper: can't find referenced method 'android.graphics.Rect getBounds()' in program class com.google.android.material.shadow.ShadowDrawableWrapper
Warning: com.google.android.material.shadow.ShadowDrawableWrapper: can't find referenced class androidx.appcompat.graphics.drawable.DrawableWrapper
Warning: com.google.android.material.shadow.ShadowDrawableWrapper: can't find referenced method 'void invalidateSelf()' in program class com.google.android.material.shadow.ShadowDrawableWrapper
Warning: com.google.android.material.shadow.ShadowDrawableWrapper: can't find referenced class androidx.appcompat.graphics.drawable.DrawableWrapper

I believe the error is that material-components-android currently depends on DrawableWrapper from AppCompat:

material-components-android/lib/java/com/google/android/material/shadow/ShadowDrawableWrapper.java

Line 43 in d1d1165

public class ShadowDrawableWrapper extends DrawableWrapper {

However, in AppCompat 1.6.1, it seems like theDrawableWrapper class was removed and renamed to DrawableWrapperCompat: https://cs.android.com/androidx/platform/frameworks/support/+/de70044326e54d6a50f0745f481bd46927cb777a

Therefore I think the solution here would be to update material-components-android to depend on AppCompat 1.6.1 and DrawableWrapperCompat.