Fix collapse issue after list bounce back (#821)

When a view with collapsing header was fully expended, scrolling down
and quickly releasing the finger would couse the list to "bounce back".
Since the view can collapse only if its scrollY amount is less then the
scaled touch slop - the view didn't collapse and instead, scroll was
enabled.

android/app/src/main/java/com/reactnativenavigation/views/collapsingToolbar/CollapseCalculator.java

 
 import com.reactnativenavigation.NavigationApplication;
 import com.reactnativenavigation.views.collapsingToolbar.behaviours.CollapseBehaviour;
-import com.reactnativenavigation.views.collapsingToolbar.behaviours.CollapseTitleBarBehaviour;
 import com.reactnativenavigation.views.collapsingToolbar.behaviours.TitleBarHideOnScrollBehaviour;
 
 public class CollapseCalculator {
         }
         checkCollapseLimits();
         return (isNotCollapsedOrExpended() ||
-               (canCollapse && isExpendedAndScrollingUp(direction)) ||
-               (canExpend && isCollapsedAndScrollingDown(direction)));
+               (canCollapse && isExpendedAndScrollingUp(direction) && collapseBehaviour.canCollapse(scrollView.getScrollY(), scaledTouchSlop)) ||
+               (canExpend && isCollapsedAndScrollingDown(direction) && collapseBehaviour.canExpend(scrollView.getScrollY(), scaledTouchSlop))
+        );
     }
 
     private boolean isScrolling() {
 
     private boolean calculateCanCollapse(float currentTopBarTranslation, float finalExpendedTranslation, float finalCollapsedTranslation) {
         return currentTopBarTranslation > finalCollapsedTranslation &&
-               currentTopBarTranslation <= finalExpendedTranslation &&
-               (scrollView.getScrollY() <= scaledTouchSlop || (collapseBehaviour instanceof TitleBarHideOnScrollBehaviour || collapseBehaviour instanceof CollapseTitleBarBehaviour));
+               currentTopBarTranslation <= finalExpendedTranslation;
     }
 
     private boolean calculateCanExpend(float currentTopBarTranslation, float finalExpendedTranslation, float finalCollapsedTranslation) {
         return currentTopBarTranslation >= finalCollapsedTranslation &&
-               currentTopBarTranslation < finalExpendedTranslation &&
-               (scrollView.getScrollY() <= scaledTouchSlop || (collapseBehaviour instanceof TitleBarHideOnScrollBehaviour || collapseBehaviour instanceof CollapseTitleBarBehaviour));
+               currentTopBarTranslation < finalExpendedTranslation;
     }
 
     private boolean isCollapsedAndScrollingDown(Direction direction) {

android/app/src/main/java/com/reactnativenavigation/views/collapsingToolbar/behaviours/CollapseBehaviour.java

     boolean shouldCollapseOnFling();
 
     boolean shouldCollapseOnTouchUp();
+
+    boolean canCollapse(int scrollY, int scaledTouchSlop);
+
+    boolean canExpend(int scrollY, int scaledTouchSlop);
 }

android/app/src/main/java/com/reactnativenavigation/views/collapsingToolbar/behaviours/CollapseTitleBarBehaviour.java

     public boolean shouldCollapseOnTouchUp() {
         return true;
     }
+
+    @Override
+    public boolean canCollapse(int scrollY, int scaledTouchSlop) {
+        return true;
+    }
+
+    @Override
+    public boolean canExpend(int scrollY, int scaledTouchSlop) {
+        return true;
+    }
 }

android/app/src/main/java/com/reactnativenavigation/views/collapsingToolbar/behaviours/CollapseTopBarBehaviour.java

     public boolean shouldCollapseOnTouchUp() {
         return false;
     }
+
+    @Override
+    public boolean canCollapse(int scrollY, int scaledTouchSlop) {
+        return scrollY <= scaledTouchSlop;
+    }
+
+    @Override
+    public boolean canExpend(int scrollY, int scaledTouchSlop) {
+        return scrollY <= scaledTouchSlop;
+    }
 }

android/app/src/main/java/com/reactnativenavigation/views/collapsingToolbar/behaviours/TitleBarHideOnScrollBehaviour.java

     public boolean shouldCollapseOnTouchUp() {
         return true;
     }
+
+    @Override
+    public boolean canCollapse(int scrollY, int scaledTouchSlop) {
+        return true;
+    }
+
+    @Override
+    public boolean canExpend(int scrollY, int scaledTouchSlop) {
+        return true;
+    }
 }