gistfile1.java

public class ViewHelper {
    @SuppressWarnings("unchecked")
    public static <ViewType extends View> ViewType findView(final Activity activity, int id) {
        return (ViewType) activity.findViewById(id);
    }

    @SuppressWarnings("unchecked")
    public static <ViewType extends View> ViewType findView(final Fragment fragment, int id) {
        return (ViewType) fragment.getView().findViewById(id);
    }

    @SuppressWarnings("unchecked")
    public static <ViewType extends View> ViewType findView(final View view, int id) {
        return (ViewType) view.findViewById(id);
    }
}