Material-components-android: [MaterialButton] Can't set background color for it

[Moosphan]

Description: Normally, we initialize a button background by android:background="@color/dark_orange", however, in my case, it can not change the color into orange, it always be white color.

Expected behavior: The button color should be orange, but it always be white. Also, i print it value of color like this: Log.e(TIMEORY_GLOBAL_TAG, "The color is：${goTravelBtn.background}"), and the log result is:

2019-10-25 11:32:04.946 11308-11308/com.xxx.timeory E/Timeory GLOBAL_LOG: The color is：android.graphics.drawable.RippleDrawable@bdad964

Source code:

<com.google.android.material.button.MaterialButton
        android:id="@+id/goTravel"
        android:layout_width="280dp"
        android:layout_height="54dp"
        android:layout_marginBottom="36dp"
        android:background="@color/dark_orange"
        android:gravity="center"
        android:textSize="@dimen/text_size_normal"
        android:text="Go travelling"
        android:textColor="@color/white"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent" />

Android API version: 29

Material Library version: 1.2.0-alpha-01

Device: Pixel 2 API 29

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[Moosphan]

Oh, MaterialButton just designed like this, okey.

[MGaetan89]

Did you try the app:backgroundTint attribute instead?

[Moosphan]

@MGaetan89 Yeah, but it can't support drawable resource type when i wana a selector.

[MGaetan89]

Indeed, it's only for color, but that's what you asked for in your original question :)

[Moosphan]

@MGaetan89 That's right. I will use AppCompatButton instead, this widget is not effected by Materials :)