212 lines
8.6 KiB
Java
212 lines
8.6 KiB
Java
package app.fedilab.android.mastodon.ui.fragment.timeline;
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/* Copyright 2022 Thomas Schneider
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*
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* This file is a part of Fedilab
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*
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* This program is free software; you can redistribute it and/or modify it under the terms of the
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* GNU General Public License as published by the Free Software Foundation; either version 3 of the
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* License, or (at your option) any later version.
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*
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* Fedilab is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even
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* the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
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* Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along with Fedilab; if not,
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* see <http://www.gnu.org/licenses>. */
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import android.content.SharedPreferences;
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import android.os.Bundle;
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import android.view.LayoutInflater;
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import android.view.View;
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import android.view.ViewGroup;
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import androidx.annotation.NonNull;
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import androidx.annotation.Nullable;
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import androidx.fragment.app.Fragment;
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import androidx.lifecycle.ViewModelProvider;
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import androidx.preference.PreferenceManager;
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import androidx.recyclerview.widget.LinearLayoutManager;
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import androidx.recyclerview.widget.RecyclerView;
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import java.util.ArrayList;
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import java.util.List;
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import app.fedilab.android.R;
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import app.fedilab.android.activities.MainActivity;
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import app.fedilab.android.databinding.FragmentPaginationBinding;
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import app.fedilab.android.mastodon.client.entities.api.Domains;
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import app.fedilab.android.mastodon.ui.drawer.DomainBlockAdapter;
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import app.fedilab.android.mastodon.viewmodel.mastodon.AccountsVM;
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public class FragmentMastodonDomainBlock extends Fragment {
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private FragmentPaginationBinding binding;
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private DomainBlockAdapter domainBlockAdapter;
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private AccountsVM accountsVM;
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private List<String> domainList;
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private boolean flagLoading;
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private String max_id;
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public View onCreateView(@NonNull LayoutInflater inflater,
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ViewGroup container, Bundle savedInstanceState) {
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binding = FragmentPaginationBinding.inflate(inflater, container, false);
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SharedPreferences sharedpreferences = PreferenceManager.getDefaultSharedPreferences(requireActivity());
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boolean displayScrollBar = sharedpreferences.getBoolean(getString(R.string.SET_TIMELINE_SCROLLBAR), false);
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binding.recyclerView.setVerticalScrollBarEnabled(displayScrollBar);
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return binding.getRoot();
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}
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@Override
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public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
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super.onViewCreated(view, savedInstanceState);
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binding.loader.setVisibility(View.VISIBLE);
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binding.recyclerView.setVisibility(View.GONE);
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accountsVM = new ViewModelProvider(FragmentMastodonDomainBlock.this).get(AccountsVM.class);
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flagLoading = false;
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max_id = null;
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domainList = new ArrayList<>();
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binding.swipeContainer.setOnRefreshListener(() -> {
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binding.swipeContainer.setRefreshing(true);
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flagLoading = false;
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max_id = null;
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int size = domainList.size();
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domainList.clear();
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domainList = new ArrayList<>();
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domainBlockAdapter.notifyItemRangeRemoved(0, size);
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router();
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});
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domainBlockAdapter = new DomainBlockAdapter(domainList);
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LinearLayoutManager mLayoutManager = new LinearLayoutManager(requireActivity());
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binding.recyclerView.setLayoutManager(mLayoutManager);
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binding.recyclerView.setAdapter(domainBlockAdapter);
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binding.recyclerView.addOnScrollListener(new RecyclerView.OnScrollListener() {
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@Override
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public void onScrolled(@NonNull RecyclerView recyclerView, int dx, int dy) {
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int firstVisibleItem = mLayoutManager.findFirstVisibleItemPosition();
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if (dy > 0) {
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int visibleItemCount = mLayoutManager.getChildCount();
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int totalItemCount = mLayoutManager.getItemCount();
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if (firstVisibleItem + visibleItemCount == totalItemCount) {
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if (!flagLoading) {
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flagLoading = true;
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binding.loadingNextElements.setVisibility(View.VISIBLE);
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router();
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}
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} else {
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binding.loadingNextElements.setVisibility(View.GONE);
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}
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}
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}
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});
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router();
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}
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/**
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* Router for timelines
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*/
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private void router() {
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if (max_id == null) {
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accountsVM.getDomainBlocks(MainActivity.currentInstance, MainActivity.currentToken, null, null, null)
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.observe(getViewLifecycleOwner(), this::initializeTagCommonView);
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} else {
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accountsVM.getDomainBlocks(MainActivity.currentInstance, MainActivity.currentToken, null, max_id, null)
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.observe(getViewLifecycleOwner(), this::dealWithPagination);
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}
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}
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public void scrollToTop() {
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binding.recyclerView.setAdapter(domainBlockAdapter);
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}
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/**
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* Intialize the view for domains
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*
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* @param domains List of {@link String}
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*/
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private void initializeTagCommonView(final Domains domains) {
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flagLoading = false;
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if (binding == null || !isAdded() || getActivity() == null) {
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return;
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}
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binding.loader.setVisibility(View.GONE);
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binding.noAction.setVisibility(View.GONE);
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binding.swipeContainer.setRefreshing(false);
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binding.swipeContainer.setOnRefreshListener(() -> {
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binding.swipeContainer.setRefreshing(true);
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flagLoading = false;
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max_id = null;
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router();
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});
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if (domains == null || domains.domains == null || domains.domains.size() == 0) {
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binding.noAction.setVisibility(View.VISIBLE);
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binding.noActionText.setText(R.string.no_accounts);
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return;
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}
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binding.recyclerView.setVisibility(View.VISIBLE);
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if (domainBlockAdapter != null && this.domainList != null) {
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int size = this.domainList.size();
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this.domainList.clear();
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this.domainList = new ArrayList<>();
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domainBlockAdapter.notifyItemRangeRemoved(0, size);
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}
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this.domainList = domains.domains;
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domainBlockAdapter = new DomainBlockAdapter(this.domainList);
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flagLoading = domains.pagination.max_id == null;
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LinearLayoutManager mLayoutManager = new LinearLayoutManager(requireActivity());
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binding.recyclerView.setLayoutManager(mLayoutManager);
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binding.recyclerView.setAdapter(domainBlockAdapter);
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max_id = domains.pagination.max_id;
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binding.recyclerView.addOnScrollListener(new RecyclerView.OnScrollListener() {
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@Override
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public void onScrolled(@NonNull RecyclerView recyclerView, int dx, int dy) {
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int firstVisibleItem = mLayoutManager.findFirstVisibleItemPosition();
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if (dy > 0) {
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int visibleItemCount = mLayoutManager.getChildCount();
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int totalItemCount = mLayoutManager.getItemCount();
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if (firstVisibleItem + visibleItemCount == totalItemCount) {
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if (!flagLoading) {
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flagLoading = true;
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binding.loadingNextElements.setVisibility(View.VISIBLE);
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router();
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}
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} else {
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binding.loadingNextElements.setVisibility(View.GONE);
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}
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}
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}
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});
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}
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private void dealWithPagination(Domains fetched_domains) {
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flagLoading = false;
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if (binding == null || !isAdded() || getActivity() == null) {
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return;
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}
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binding.loadingNextElements.setVisibility(View.GONE);
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if (domainList != null && fetched_domains != null && fetched_domains.domains != null) {
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flagLoading = fetched_domains.pagination.max_id == null;
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int startId = 0;
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//There are some domains present in the timeline
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if (domainList.size() > 0) {
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startId = domainList.size();
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}
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int position = domainList.size();
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domainList.addAll(fetched_domains.domains);
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max_id = fetched_domains.pagination.max_id;
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domainBlockAdapter.notifyItemRangeInserted(startId, fetched_domains.domains.size());
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} else {
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flagLoading = true;
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}
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}
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} |