Answers for "how to give background color incode java android"

how to change background tint color programmatically android

Drawable buttonDrawable = button.getBackground();
    buttonDrawable = DrawableCompat.wrap(buttonDrawable);
    //the color is a direct color int and not a color resource
    DrawableCompat.setTint(buttonDrawable, Color.RED);
    button.setBackground(buttonDrawable);

background color android

android:background="@color/white"