Fix bug: setState didn't modify the expanded variable.

Author: tomdaniel-it

collapsiblecalendarview2/src/main/java/com/shrikanthravi/collapsiblecalendarview/widget/CollapsibleCalendar.java

@@ -111,8 +111,6 @@ public void onClick(View view) {
                 else{
                     expand(400);
                 }
-                expanded = !expanded;
-
             }
         });
 
@@ -543,6 +541,17 @@ protected void applyTransformation(float interpolatedTime, Transformation t) {
         expandIconView.setState(ExpandIconView.LESS,true);
     }
 
+    @Override
+    public void setState(int state) {
+        super.setState(state);
+        if(state == STATE_COLLAPSED) {
+            expanded = false;
+        }
+        if(state == STATE_EXPANDED) {
+            expanded = true;
+        }
+    }
+
     public void select(Day day) {
         setSelectedItem(new Day(day.getYear(), day.getMonth(), day.getDay()));