Can't change backgroundTint programmatically

Question

Android Studio 3.6

in my styles. xml

 <style name="buttonStyle">
        <item name="android:textColor">@color/default_button_textColor</item>
        <item name="android:backgroundTint">@color/button_bg_color</item>
        <item name="android:textSize">18sp</item>
        <item name="android:textAllCaps">true</item>
    </style>

    <style name="buttonClickStyle">
        <item name="android:textColor">@color/button_bg_color</item>
        <item name="android:backgroundTint">@color/button_click_bg_color</item>
        <item name="android:textSize">18sp</item>
        <item name="android:textAllCaps">true</item>
    </style>

in xml layout:

 <com.google.android.material.button.MaterialButton
            android:id="@+id/buttonStartSearchBluetooth"
            style="@style/buttonStyle"
            android:layout_width="0dp"
            android:layout_height="@dimen/button_height"
            android:layout_margin="@dimen/button_margin"
            android:onClick="onClickButtonStartSearch"
            android:text="@string/start_search"
            app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintStart_toStartOf="parent" />

When click button I try to change style like this:

dataBinding.buttonStartSearchBluetooth.setTextAppearance(R.style.buttonClickStyle)

But it change only text color. Not change backgroundTint

Why?

Answer 1

try this code

yourbutton.setBackgroundTintList(contextInstance.getResources().getColorStateList(R.color.your_xml_name));

Answer 2

Use this code to change MaterialComponents Button Background tint color.

yourbutton.setBackgroundTintList(ColorStateList.valueOf(Color.parseColor(color)));

Answer 3

setTextAppearance only take care about styling the Text of the TextView not the background. Check the official doc to see supported property that setTextAppearance affected.