Some fixes

app/src/main/java/app/fedilab/android/BaseMainActivity.java

@@ -121,7 +121,6 @@ import app.fedilab.android.helper.PinnedTimelineHelper;
 import app.fedilab.android.helper.PushHelper;
 import app.fedilab.android.helper.ThemeHelper;
 import app.fedilab.android.ui.fragment.timeline.FragmentMastodonConversation;
-import app.fedilab.android.ui.fragment.timeline.FragmentMastodonNotification;
 import app.fedilab.android.ui.fragment.timeline.FragmentMastodonTimeline;
 import app.fedilab.android.ui.fragment.timeline.FragmentNotificationContainer;
 import app.fedilab.android.viewmodel.mastodon.AccountsVM;
@@ -883,13 +882,11 @@ public abstract class BaseMainActivity extends BaseActivity implements NetworkSt
      * Allow to scroll to top for bottom navigation items
      */
     private void scrollToTop() {
+
         Fragment fragment = getSupportFragmentManager().findFragmentByTag("f" + binding.viewPager.getCurrentItem());
         if (fragment instanceof FragmentMastodonTimeline) {
             FragmentMastodonTimeline fragmentMastodonTimeline = ((FragmentMastodonTimeline) fragment);
             fragmentMastodonTimeline.scrollToTop();
-        } else if (fragment instanceof FragmentMastodonNotification) {
-            FragmentMastodonNotification fragmentMastodonNotification = ((FragmentMastodonNotification) fragment);
-            fragmentMastodonNotification.scrollToTop();
         } else if (fragment instanceof FragmentMastodonConversation) {
             FragmentMastodonConversation fragmentMastodonConversation = ((FragmentMastodonConversation) fragment);
             fragmentMastodonConversation.scrollToTop();

app/src/main/java/app/fedilab/android/ui/fragment/login/FragmentLoginMain.java

@@ -252,7 +252,6 @@ public class FragmentLoginMain extends Fragment {
         }
         String scopes = ((LoginActivity) requireActivity()).requestedAdmin() ? Helper.OAUTH_SCOPES_ADMIN : Helper.OAUTH_SCOPES;
         AppsVM appsVM = new ViewModelProvider(requireActivity()).get(AppsVM.class);
-        String finalInstance = instance;
         appsVM.createApp(currentInstanceLogin, getString(R.string.app_name),
                 Helper.REDIRECT_CONTENT_WEB,
                 scopes,

app/src/main/java/app/fedilab/android/ui/fragment/login/FragmentLoginRegisterMastodon.java

@@ -70,8 +70,8 @@ public class FragmentLoginRegisterMastodon extends Fragment {
         } else {
             binding.loginInstance.setOnFocusChangeListener((v, hasFocus) -> {
                 if (!hasFocus) {
-                    nodeInfoVM.getNodeInfo(binding.loginInstance.getText().toString()).observe(requireActivity(), nodeInfo -> {
+                    nodeInfoVM.getNodeInfo(binding.loginInstance.getText().toString().trim()).observe(requireActivity(), nodeInfo -> {
-                        if (nodeInfo != null && (nodeInfo.software.name.trim().toLowerCase().compareTo("mastodon") == 0 || nodeInfo.software.name.trim().toLowerCase().compareTo("pleroma") == 0)) {
+                        if (nodeInfo != null) {
                             String tos = getString(R.string.tos);
                             String serverrules = getString(R.string.server_rules);
                             String content_agreement = getString(R.string.agreement_check,

app/src/main/java/app/fedilab/android/ui/fragment/timeline/FragmentNotificationContainer.java

@@ -33,7 +33,6 @@ import androidx.preference.PreferenceManager;
 
 import com.google.android.material.button.MaterialButton;
 import com.google.android.material.tabs.TabLayout;
-import com.google.android.material.tabs.TabLayoutMediator;
 
 import java.util.ArrayList;
 import java.util.List;
@@ -61,20 +60,20 @@ public class FragmentNotificationContainer extends Fragment {
         SharedPreferences sharedpreferences = PreferenceManager.getDefaultSharedPreferences(requireActivity());
         boolean display_all_notification = sharedpreferences.getBoolean(getString(R.string.SET_DISPLAY_ALL_NOTIFICATIONS_TYPE) + BaseMainActivity.currentUserID + BaseMainActivity.currentInstance, false);
         if (!display_all_notification) {
-            binding.tabLayout.addTab(binding.tabLayout.newTab());
+            binding.tabLayout.addTab(binding.tabLayout.newTab().setText(getString(R.string.all)));
-            binding.tabLayout.addTab(binding.tabLayout.newTab());
+            binding.tabLayout.addTab(binding.tabLayout.newTab().setText(getString(R.string.mention)));
             binding.tabLayout.setTabMode(TabLayout.MODE_FIXED);
-            binding.viewpager.setAdapter(new FedilabNotificationPageAdapter(requireActivity(), false));
+            binding.viewpagerNotificationContainer.setAdapter(new FedilabNotificationPageAdapter(getChildFragmentManager(), false));
         } else {
             binding.tabLayout.setTabMode(TabLayout.MODE_SCROLLABLE);
-            binding.tabLayout.addTab(binding.tabLayout.newTab());
+            binding.tabLayout.addTab(binding.tabLayout.newTab().setText(getString(R.string.all)));
-            binding.tabLayout.addTab(binding.tabLayout.newTab());
+            binding.tabLayout.addTab(binding.tabLayout.newTab().setIcon(R.drawable.ic_baseline_reply_24));
-            binding.tabLayout.addTab(binding.tabLayout.newTab());
+            binding.tabLayout.addTab(binding.tabLayout.newTab().setIcon(R.drawable.ic_baseline_star_24));
-            binding.tabLayout.addTab(binding.tabLayout.newTab());
+            binding.tabLayout.addTab(binding.tabLayout.newTab().setIcon(R.drawable.ic_repeat));
-            binding.tabLayout.addTab(binding.tabLayout.newTab());
+            binding.tabLayout.addTab(binding.tabLayout.newTab().setIcon(R.drawable.ic_baseline_poll_24));
-            binding.tabLayout.addTab(binding.tabLayout.newTab());
+            binding.tabLayout.addTab(binding.tabLayout.newTab().setIcon(R.drawable.ic_baseline_home_24));
-            binding.tabLayout.addTab(binding.tabLayout.newTab());
+            binding.tabLayout.addTab(binding.tabLayout.newTab().setIcon(R.drawable.ic_baseline_person_add_alt_1_24));
-            binding.viewpager.setAdapter(new FedilabNotificationPageAdapter(requireActivity(), true));
+            binding.viewpagerNotificationContainer.setAdapter(new FedilabNotificationPageAdapter(getChildFragmentManager(), true));
         }
         AtomicBoolean changes = new AtomicBoolean(false);
         binding.settings.setOnClickListener(v -> {
@@ -213,76 +212,41 @@ public class FragmentNotificationContainer extends Fragment {
 
         binding.tabLayout.setTabTextColors(ThemeHelper.getAttColor(requireActivity(), R.attr.mTextColor), ContextCompat.getColor(requireActivity(), R.color.cyanea_accent_dark_reference));
         binding.tabLayout.setTabIconTint(ThemeHelper.getColorStateList(requireActivity()));
+        binding.viewpagerNotificationContainer.addOnPageChangeListener(new TabLayout.TabLayoutOnPageChangeListener(binding.tabLayout));
         binding.tabLayout.addOnTabSelectedListener(new TabLayout.OnTabSelectedListener() {
             @Override
             public void onTabSelected(TabLayout.Tab tab) {
-                binding.viewpager.setCurrentItem(tab.getPosition());
+                binding.viewpagerNotificationContainer.setCurrentItem(tab.getPosition());
             }
 
             @Override
             public void onTabUnselected(TabLayout.Tab tab) {
-
             }
 
             @Override
             public void onTabReselected(TabLayout.Tab tab) {
-                Fragment fragment = getParentFragmentManager().findFragmentByTag("f" + binding.viewpager.getCurrentItem());
+                Fragment fragment;
+                if (binding.viewpagerNotificationContainer.getAdapter() != null) {
+                    fragment = (Fragment) binding.viewpagerNotificationContainer.getAdapter().instantiateItem(binding.viewpagerNotificationContainer, tab.getPosition());
                     if (fragment instanceof FragmentMastodonNotification) {
                         FragmentMastodonNotification fragmentMastodonNotification = ((FragmentMastodonNotification) fragment);
                         fragmentMastodonNotification.scrollToTop();
                     }
                 }
+            }
         });
-        new TabLayoutMediator(binding.tabLayout, binding.viewpager,
-                (tab, position) -> {
-                    binding.viewpager.setCurrentItem(tab.getPosition(), true);
-                    if (!display_all_notification) {
-                        switch (position) {
-                            case 0:
-                                tab.setText(getString(R.string.all));
-                                break;
-                            case 1:
-                                tab.setText(getString(R.string.mention));
-                                break;
-                        }
-                    } else {
-                        switch (position) {
-                            case 0:
-                                tab.setText(getString(R.string.all));
-                                break;
-                            case 1:
-                                tab.setIcon(R.drawable.ic_baseline_reply_24);
-                                break;
-                            case 2:
-                                tab.setIcon(R.drawable.ic_baseline_star_24);
-                                break;
-                            case 3:
-                                tab.setIcon(R.drawable.ic_repeat);
-                                break;
-                            case 4:
-                                tab.setIcon(R.drawable.ic_baseline_poll_24);
-                                break;
-                            case 5:
-                                tab.setIcon(R.drawable.ic_baseline_home_24);
-                                break;
-                            case 6:
-                                tab.setIcon(R.drawable.ic_baseline_person_add_alt_1_24);
-                                break;
-                        }
-                    }
-
-                }
-        ).attach();
-
         return binding.getRoot();
     }
 
 
     public void scrollToTop() {
         if (binding != null) {
-            Fragment fragment = getParentFragmentManager().findFragmentByTag("f" + binding.viewpager.getCurrentItem());
+            FedilabNotificationPageAdapter fedilabNotificationPageAdapter = ((FedilabNotificationPageAdapter) binding.viewpagerNotificationContainer.getAdapter());
-            if (fragment instanceof FragmentMastodonNotification) {
+            if (fedilabNotificationPageAdapter != null) {
-                ((FragmentMastodonNotification) fragment).scrollToTop();
+                FragmentMastodonNotification fragmentMastodonNotification = (FragmentMastodonNotification) fedilabNotificationPageAdapter.getCurrentFragment();
+                if (fragmentMastodonNotification != null) {
+                    fragmentMastodonNotification.scrollToTop();
+                }
             }
         }
     }

app/src/main/java/app/fedilab/android/ui/pageadapter/FedilabNotificationPageAdapter.java

@@ -14,35 +14,41 @@ package app.fedilab.android.ui.pageadapter;
  * You should have received a copy of the GNU General Public License along with Fedilab; if not,
  * see <http://www.gnu.org/licenses>. */
 
-
 import android.os.Bundle;
+import android.view.ViewGroup;
 
 import androidx.annotation.NonNull;
 import androidx.fragment.app.Fragment;
-import androidx.fragment.app.FragmentActivity;
+import androidx.fragment.app.FragmentManager;
-import androidx.viewpager2.adapter.FragmentStateAdapter;
+import androidx.fragment.app.FragmentStatePagerAdapter;
 
 import app.fedilab.android.helper.Helper;
 import app.fedilab.android.ui.fragment.timeline.FragmentMastodonNotification;
 
-public class FedilabNotificationPageAdapter extends FragmentStateAdapter {
+public class FedilabNotificationPageAdapter extends FragmentStatePagerAdapter {
-
     private final boolean extended;
+    private Fragment mCurrentFragment;
 
-
+    public FedilabNotificationPageAdapter(FragmentManager fm, boolean extended) {
-    public FedilabNotificationPageAdapter(FragmentActivity fa, boolean extended) {
+        super(fm, BEHAVIOR_RESUME_ONLY_CURRENT_FRAGMENT);
-        super(fa);
         this.extended = extended;
     }
 
+    public Fragment getCurrentFragment() {
+        return mCurrentFragment;
+    }
+
     @Override
-    public int getItemCount() {
+    public void setPrimaryItem(@NonNull ViewGroup container, int position, @NonNull Object object) {
-        return extended ? 7 : 2;
+        if (getCurrentFragment() != object) {
+            mCurrentFragment = ((Fragment) object);
+        }
+        super.setPrimaryItem(container, position, object);
     }
 
     @NonNull
     @Override
-    public Fragment createFragment(int position) {
+    public Fragment getItem(int position) {
         Bundle bundle = new Bundle();
         FragmentMastodonNotification fragmentMastodonNotification = new FragmentMastodonNotification();
         if (!extended) {
@@ -83,5 +89,8 @@ public class FedilabNotificationPageAdapter extends FragmentStateAdapter {
         return fragmentMastodonNotification;
     }
 
-
+    @Override
+    public int getCount() {
+        return extended ? 7 : 2;
+    }
 }

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

@@ -75,14 +75,19 @@
 
         </com.google.android.material.appbar.AppBarLayout>
 
+        <app.fedilab.android.helper.NestedScrollableHost
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"
+            app:layout_behavior="@string/appbar_scrolling_view_behavior">
+
             <androidx.viewpager2.widget.ViewPager2
                 android:id="@+id/view_pager"
                 android:name="androidx.navigation.fragment.NavHostFragment"
                 android:layout_width="match_parent"
                 android:layout_height="match_parent"
                 android:layout_marginBottom="?attr/actionBarSize"
-            app:defaultNavHost="true"
+                app:defaultNavHost="true" />
-            app:layout_behavior="@string/appbar_scrolling_view_behavior" />
+        </app.fedilab.android.helper.NestedScrollableHost>
 
         <androidx.constraintlayout.widget.ConstraintLayout
             android:layout_width="match_parent"

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

@@ -47,8 +47,8 @@
 
     </androidx.appcompat.widget.LinearLayoutCompat>
 
-    <androidx.viewpager2.widget.ViewPager2
+    <androidx.viewpager.widget.ViewPager
-        android:id="@+id/viewpager"
+        android:id="@+id/viewpagerNotificationContainer"
         android:layout_width="match_parent"
         android:layout_height="match_parent" />
 </LinearLayout>