[UI] Make fragments disable pull to refresh when not scrolled to the top.

app/src/main/java/pl/szczodrzynski/edziennik/ui/modules/announcements/AnnouncementsFragment.java

@@ -33,6 +33,7 @@ import pl.szczodrzynski.edziennik.utils.SimpleDividerItemDecoration;
 import pl.szczodrzynski.edziennik.utils.Themes;
 import pl.szczodrzynski.navlib.bottomsheet.items.BottomSheetPrimaryItem;
 
+import static androidx.recyclerview.widget.RecyclerView.SCROLL_STATE_IDLE;
 import static pl.szczodrzynski.edziennik.data.db.entity.LoginStore.LOGIN_TYPE_LIBRUS;
 import static pl.szczodrzynski.edziennik.data.db.entity.Metadata.TYPE_ANNOUNCEMENT;
 
@@ -90,6 +91,18 @@ public class AnnouncementsFragment extends Fragment {
         recyclerView.setLayoutManager(linearLayoutManager);
         recyclerView.addItemDecoration(new SimpleDividerItemDecoration(view.getContext()));
 
+        recyclerView.addOnScrollListener(new RecyclerView.OnScrollListener() {
+            @Override
+            public void onScrollStateChanged(@NonNull RecyclerView recyclerView, int newState) {
+                if (recyclerView.canScrollVertically(-1)) {
+                    b.refreshLayout.setEnabled(false);
+                }
+                if (!recyclerView.canScrollVertically(-1) && newState == SCROLL_STATE_IDLE) {
+                    b.refreshLayout.setEnabled(true);
+                }
+            }
+        });
+
         app.db.announcementDao().getAll(App.Companion.getProfileId()).observe(this, announcements -> {
             if (app == null || activity == null || b == null || !isAdded())
                 return;

app/src/main/java/pl/szczodrzynski/edziennik/ui/modules/attendance/AttendanceFragment.java

@@ -21,6 +21,7 @@ import androidx.core.graphics.ColorUtils;
 import androidx.databinding.DataBindingUtil;
 import androidx.fragment.app.Fragment;
 import androidx.recyclerview.widget.LinearLayoutManager;
+import androidx.recyclerview.widget.RecyclerView;
 
 import com.mikepenz.iconics.typeface.library.community.material.CommunityMaterial;
 
@@ -40,6 +41,7 @@ import pl.szczodrzynski.edziennik.utils.SimpleDividerItemDecoration;
 import pl.szczodrzynski.edziennik.utils.Themes;
 import pl.szczodrzynski.navlib.bottomsheet.items.BottomSheetPrimaryItem;
 
+import static androidx.recyclerview.widget.RecyclerView.SCROLL_STATE_IDLE;
 import static pl.szczodrzynski.edziennik.data.db.entity.Attendance.TYPE_ABSENT;
 import static pl.szczodrzynski.edziennik.data.db.entity.Attendance.TYPE_ABSENT_EXCUSED;
 import static pl.szczodrzynski.edziennik.data.db.entity.Attendance.TYPE_BELATED;
@@ -181,6 +183,18 @@ public class AttendanceFragment extends Fragment {
         b.attendanceView.setLayoutManager(linearLayoutManager);
         b.attendanceView.addItemDecoration(new SimpleDividerItemDecoration(getContext()));
 
+        b.attendanceView.addOnScrollListener(new RecyclerView.OnScrollListener() {
+            @Override
+            public void onScrollStateChanged(@NonNull RecyclerView recyclerView, int newState) {
+                if (recyclerView.canScrollVertically(-1)) {
+                    b.refreshLayout.setEnabled(false);
+                }
+                if (!recyclerView.canScrollVertically(-1) && newState == SCROLL_STATE_IDLE) {
+                    b.refreshLayout.setEnabled(true);
+                }
+            }
+        });
+
         App.db.attendanceDao().getAll(App.Companion.getProfileId()).observe(this, attendance -> {
             if (app == null || activity == null || b == null || !isAdded())
                 return;

app/src/main/java/pl/szczodrzynski/edziennik/ui/modules/behaviour/BehaviourFragment.java

@@ -15,6 +15,7 @@ import androidx.appcompat.widget.PopupMenu;
 import androidx.databinding.DataBindingUtil;
 import androidx.fragment.app.Fragment;
 import androidx.recyclerview.widget.LinearLayoutManager;
+import androidx.recyclerview.widget.RecyclerView;
 
 import com.mikepenz.iconics.typeface.library.community.material.CommunityMaterial;
 
@@ -31,6 +32,7 @@ import pl.szczodrzynski.edziennik.databinding.FragmentBehaviourBinding;
 import pl.szczodrzynski.edziennik.utils.Themes;
 import pl.szczodrzynski.navlib.bottomsheet.items.BottomSheetPrimaryItem;
 
+import static androidx.recyclerview.widget.RecyclerView.SCROLL_STATE_IDLE;
 import static pl.szczodrzynski.edziennik.data.db.entity.Metadata.TYPE_NOTICE;
 
 public class BehaviourFragment extends Fragment {
@@ -97,6 +99,18 @@ public class BehaviourFragment extends Fragment {
         b.noticesView.setHasFixedSize(true);
         b.noticesView.setLayoutManager(linearLayoutManager);
 
+        b.noticesView.addOnScrollListener(new RecyclerView.OnScrollListener() {
+            @Override
+            public void onScrollStateChanged(@NonNull RecyclerView recyclerView, int newState) {
+                if (recyclerView.canScrollVertically(-1)) {
+                    b.refreshLayout.setEnabled(false);
+                }
+                if (!recyclerView.canScrollVertically(-1) && newState == SCROLL_STATE_IDLE) {
+                    b.refreshLayout.setEnabled(true);
+                }
+            }
+        });
+
         app.db.noticeDao().getAll(App.Companion.getProfileId()).observe(this, notices -> {
             if (app == null || activity == null || b == null || !isAdded())
                 return;

app/src/main/java/pl/szczodrzynski/edziennik/ui/modules/grades/GradesFragment.kt

@@ -13,6 +13,8 @@ import android.widget.Toast
 import androidx.fragment.app.Fragment
 import androidx.lifecycle.Observer
 import androidx.recyclerview.widget.LinearLayoutManager
+import androidx.recyclerview.widget.RecyclerView
+import androidx.recyclerview.widget.RecyclerView.SCROLL_STATE_IDLE
 import com.mikepenz.iconics.typeface.library.community.material.CommunityMaterial
 import com.mikepenz.iconics.typeface.library.community.material.CommunityMaterial.Icon2
 import kotlinx.coroutines.*
@@ -81,6 +83,16 @@ class GradesFragment : Fragment(), CoroutineScope {
                             setHasFixedSize(true)
                             layoutManager = LinearLayoutManager(context)
                             //addItemDecoration(SimpleDividerItemDecoration(context))
+                            addOnScrollListener(object : RecyclerView.OnScrollListener() {
+                                override fun onScrollStateChanged(recyclerView: RecyclerView, newState: Int) {
+                                    if (recyclerView.canScrollVertically(-1)) {
+                                        b.refreshLayout.isEnabled = false
+                                    }
+                                    if (!recyclerView.canScrollVertically(-1) && newState == SCROLL_STATE_IDLE) {
+                                        b.refreshLayout.isEnabled = true
+                                    }
+                                }
+                            })
                         }
                     }
 

app/src/main/java/pl/szczodrzynski/edziennik/ui/modules/home/HomeFragment.kt

@@ -13,6 +13,7 @@ import android.widget.Toast
 import androidx.core.view.AccessibilityDelegateCompat
 import androidx.core.view.accessibility.AccessibilityNodeInfoCompat
 import androidx.core.view.accessibility.AccessibilityNodeInfoCompat.AccessibilityActionCompat
+import androidx.core.widget.NestedScrollView
 import androidx.fragment.app.Fragment
 import androidx.recyclerview.widget.ItemTouchHelper
 import androidx.recyclerview.widget.LinearLayoutManager
@@ -123,6 +124,10 @@ class HomeFragment : Fragment(), CoroutineScope {
             HomeConfigDialog(activity, reloadOnDismiss = true)
         }
 
+        b.scrollView.setOnScrollChangeListener { _: NestedScrollView?, _: Int, scrollY: Int, _: Int, _: Int ->
+            b.refreshLayout.isEnabled = scrollY == 0
+        }
+
         val showUnified = false
 
         val cards = app.config.forProfile().ui.homeCards.filter { it.profileId == app.profile.id }.toMutableList()

app/src/main/java/pl/szczodrzynski/edziennik/ui/modules/homework/HomeworkFragment.kt

@@ -85,9 +85,7 @@ class HomeworkFragment : Fragment() {
         b.viewPager.clearOnPageChangeListeners()
         b.viewPager.addOnPageChangeListener(object : ViewPager.OnPageChangeListener {
             override fun onPageScrollStateChanged(state: Int) {
-                if (b.refreshLayout != null) {
+                b.refreshLayout.isEnabled = state == ViewPager.SCROLL_STATE_IDLE
-                    b.refreshLayout.isEnabled = state == ViewPager.SCROLL_STATE_IDLE
-                }
             }
             override fun onPageScrolled(position: Int, positionOffset: Float, positionOffsetPixels: Int) {}
             override fun onPageSelected(position: Int) {

app/src/main/res/layout/fragment_home.xml

@@ -12,6 +12,7 @@
         android:layout_height="match_parent">
 
         <androidx.core.widget.NestedScrollView
+            android:id="@+id/scrollView"
             android:layout_width="match_parent"
             android:layout_height="match_parent">