파란색 구글로그인 버튼 (Google Login Dark Version)

Gradle

implementation 'com.shobhitpuri.custombuttons:google-signin:1.0.0'

XML

<com.shobhitpuri.custombuttons.GoogleSignInButton
        android:id="@+id/btn_googleSignIn"
        android:layout_width="250dp"
        android:layout_height="wrap_content"
        app:isDarkTheme="true"
        android:layout_centerInParent="true"
        app:layout_constraintEnd_toEndOf="parent" app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintStart_toStartOf="parent" app:layout_constraintBottom_toBottomOf="parent"
/>

참고: https://github.com/shobhitpuri/custom-google-signin-button