在android中更改按钮颜色及其文本颜色

<Button
    android:id="@+id/myButton"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="Click Me"
    android:background="@drawable/custom_button"
    android:textColor="@color/custom_text_color" />

<shape xmlns:android="http://schemas.android.com/apk/res/android">
    <solid android:color="@color/custom_button_color" />
    <corners android:radius="8dp" />
</shape>

<resources>
    <color name="custom_button_color">#FF0000</color>
    <color name="custom_text_color">#FFFFFF</color>
</resources>

Button myButton = findViewById(R.id.myButton);
myButton.setBackgroundResource(R.drawable.custom_button);
myButton.setTextColor(getResources().getColor(R.color.custom_text_color));