Can't change background color on MaterialButton without change colorAccent

1st Solution

You can use app:backgroundTint to change back ground color of MaterialButton

<com.google.android.material.button.MaterialButton                android:id="@+id/bittrexJsonViewButton"                android:layout_width="0dp"                android:layout_height="@dimen/min_height"                android:layout_marginStart="@dimen/half_default_margin"                android:layout_marginEnd="@dimen/half_default_margin"                app:backgroundTint="@android:color/holo_orange_dark"                android:text="@string/json_view"                app:layout_constraintBottom_toBottomOf="@+id/binanceJsonViewButton"                app:layout_constraintEnd_toEndOf="parent"                app:layout_constraintStart_toEndOf="@+id/binanceJsonViewButton"                app:layout_constraintTop_toTopOf="@+id/binanceJsonViewButton" />

2nd Solution

MaterialButton uses colorPrimary as background when button is in active state and colorOnSurface when disabled. So, you can define it in your theme and apply it on material buttons

With the MaterialButton you have 2 options:

1. Using the backgroundTint attribute as suggest by Zaid Mirza

2. If you want to override some theme attributes from a default style you can use new materialThemeOverlay attribute. It is the best option in my opinion.

Something like:

<style name="Widget.App.ButtonStyle" parent="Widget.MaterialComponents.Button">   <item name="materialThemeOverlay">@style/GreenButtonThemeOverlay</item></style><style name="GreenButtonThemeOverlay">  <item name="colorPrimary">@color/green</item></style>

and then:

<com.google.android.material.button.MaterialButton   style="Widget.App.ButtonStyle"   ../>

It requires at least the version 1.1.0 of the library.

If you want to set custom drawable you need to make the app:backgroundTint="@null". For just changing the background colour app:backgroundTint="@color/yourColor"

I'm currently using 1.3.0-alpha01

<com.google.android.material.button.MaterialButton            android:id="@+id/bittrexJsonViewButton"            android:layout_width="0dp"            android:layout_height="@dimen/min_height"            android:layout_marginStart="@dimen/half_default_margin"            android:layout_marginEnd="@dimen/half_default_margin"            app:backgroundTint="@null"            android:background="@drawable/your_custom_drawable"            android:text="@string/json_view"            app:layout_constraintBottom_toBottomOf="@+id/binanceJsonViewButton"            app:layout_constraintEnd_toEndOf="parent"            app:layout_constraintStart_toEndOf="@+id/binanceJsonViewButton"            app:layout_constraintTop_toTopOf="@+id/binanceJsonViewButton" />