Android Data Binding layout_width and layout_height

In Java

@BindingAdapter("layout_height")
public static void setLayoutHeight(View view, float height) {
    LayoutParams layoutParams = view.getLayoutParams();
    layoutParams.height = height;
    view.setLayoutParams(layoutParams);
}

And in your XML

app:layout_height="@{ viewModel.isBig ? @dimen/dp_20 : @dimen/dp_5 }"

import the app like this

xmlns:app="http://schemas.android.com/apk/res-auto"