1-keep public class * extends android.support.design.widget.CoordinatorLayout$Behavior {
2    public <init>(android.content.Context, android.util.AttributeSet);
3}
4
5-keep public class * extends android.support.v7.widget.LinearLayoutManager {
6    public <init>(android.content.Context, android.util.AttributeSet, int, int);
7}
8