Fixes #29.

Author: yavski

library/src/main/java/io/github/yavski/fabspeeddial/FabSpeedDialBehaviour.java

@@ -16,13 +16,15 @@
 
 package io.github.yavski.fabspeeddial;
 
+import android.content.Context;
 import android.graphics.Rect;
 import android.os.Build;
 import android.support.design.widget.AppBarLayout;
 import android.support.design.widget.CoordinatorLayout;
 import android.support.design.widget.Snackbar;
 import android.support.v4.view.ViewCompat;
 import android.support.v4.view.ViewPropertyAnimatorCompat;
+import android.util.AttributeSet;
 import android.view.View;
 
 import java.lang.reflect.InvocationTargetException;
@@ -61,6 +63,10 @@ public class FabSpeedDialBehaviour extends CoordinatorLayout.Behavior<FabSpeedDi
     private float mFabTranslationY;
     private Rect mTmpRect;
 
+    public FabSpeedDialBehaviour(Context context, AttributeSet attrs) {
+        super(context, attrs);
+    }
+
     @Override
     public boolean layoutDependsOn(CoordinatorLayout parent, FabSpeedDial child, View dependency) {
         // We're dependent on all SnackbarLayouts (if enabled)