Fix no expandable grades (#184)

app/src/main/java/io/github/wulkanowy/ui/modules/grade/details/GradeDetailsFragment.kt

@@ -81,11 +81,12 @@ class GradeDetailsFragment : BaseFragment(), GradeDetailsView, GradeView.GradeCh
         gradeDetailsAdapter.clear()
     }
 
-    override fun resetView() {
-        gradeDetailsAdapter.apply {
-            smoothScrollToPosition(0)
-            collapseAll()
-        }
+    override fun collapseAllItems() {
+        gradeDetailsAdapter.collapseAll()
+    }
+
+    override fun scrollToStart() {
+        gradeDetailsAdapter.smoothScrollToPosition(0)
     }
 
     override fun getHeaderOfItem(item: AbstractFlexibleItem<*>): IExpandable<*, out IFlexible<*>>? {

app/src/main/java/io/github/wulkanowy/ui/modules/grade/details/GradeDetailsPresenter.kt

@@ -80,7 +80,10 @@ class GradeDetailsPresenter @Inject constructor(
 
     fun onParentViewReselected() {
         view?.run {
-            if (!isViewEmpty) resetView()
+            if (!isViewEmpty) {
+                if (preferencesRepository.isGradeExpandable) collapseAllItems()
+                scrollToStart()
+            }
         }
     }
 

app/src/main/java/io/github/wulkanowy/ui/modules/grade/details/GradeDetailsView.kt

@@ -22,10 +22,12 @@ interface GradeDetailsView : BaseView {
 
     fun updateItem(item: AbstractFlexibleItem<*>)
 
-    fun resetView()
-
     fun clearView()
 
+    fun scrollToStart()
+
+    fun collapseAllItems()
+
     fun showGradeDialog(grade: Grade)
 
     fun showContent(show: Boolean)