281 lines
10 KiB
Java
281 lines
10 KiB
Java
package app.fedilab.android.fragments;
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/* Copyright 2019 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.Context;
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import android.content.SharedPreferences;
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import android.os.Bundle;
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import android.os.Handler;
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import android.os.Looper;
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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 android.widget.RelativeLayout;
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import android.widget.Toast;
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import androidx.annotation.NonNull;
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import androidx.core.content.ContextCompat;
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import androidx.fragment.app.Fragment;
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import androidx.recyclerview.widget.LinearLayoutManager;
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import androidx.recyclerview.widget.RecyclerView;
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import androidx.swiperefreshlayout.widget.SwipeRefreshLayout;
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import org.jetbrains.annotations.NotNull;
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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.asynctasks.RetrieveStoriesAsyncTask;
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import app.fedilab.android.client.APIResponse;
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import app.fedilab.android.client.Entities.PixelFedStory;
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import app.fedilab.android.drawers.PixelfedStoriesListAdapter;
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import app.fedilab.android.helper.Helper;
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import app.fedilab.android.interfaces.OnRetrieveStoriesInterface;
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import es.dmoral.toasty.Toasty;
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/**
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* Created by Thomas on 02/11/2019.
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* Fragment to display PixelfFed Stories
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*/
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public class DisplayStoriesFragment extends Fragment implements OnRetrieveStoriesInterface {
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private LinearLayoutManager mLayoutManager;
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private boolean flag_loading;
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private Context context;
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private PixelfedStoriesListAdapter pixelfedStoriesListAdapter;
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private String max_id;
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private List<PixelFedStory> pixelFedStories;
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private RelativeLayout mainLoader, nextElementLoader, textviewNoAction;
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private boolean firstLoad;
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private SwipeRefreshLayout swipeRefreshLayout;
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private boolean swiped;
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private RecyclerView lv_stories;
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private View rootView;
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private String userId;
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public DisplayStoriesFragment() {
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}
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@Override
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public View onCreateView(@NonNull LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
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rootView = inflater.inflate(R.layout.fragment_stories, container, false);
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SharedPreferences sharedpreferences = context.getSharedPreferences(Helper.APP_PREFS, Context.MODE_PRIVATE);
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userId = sharedpreferences.getString(Helper.PREF_KEY_ID, null);
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max_id = null;
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context = getContext();
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firstLoad = true;
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flag_loading = true;
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pixelFedStories = new ArrayList<>();
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swiped = false;
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swipeRefreshLayout = rootView.findViewById(R.id.swipeContainer);
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lv_stories = rootView.findViewById(R.id.lv_stories);
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mainLoader = rootView.findViewById(R.id.loader);
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nextElementLoader = rootView.findViewById(R.id.loading_next_stories);
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textviewNoAction = rootView.findViewById(R.id.no_action);
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mainLoader.setVisibility(View.VISIBLE);
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nextElementLoader.setVisibility(View.GONE);
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pixelfedStoriesListAdapter = new PixelfedStoriesListAdapter(this.pixelFedStories);
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lv_stories.setAdapter(pixelfedStoriesListAdapter);
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mLayoutManager = new LinearLayoutManager(context);
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lv_stories.setLayoutManager(mLayoutManager);
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lv_stories.addOnScrollListener(new RecyclerView.OnScrollListener() {
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public void onScrolled(@NotNull RecyclerView recyclerView, int dx, int dy) {
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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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int firstVisibleItem = mLayoutManager.findFirstVisibleItemPosition();
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if (firstVisibleItem + visibleItemCount == totalItemCount && context != null) {
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if (!flag_loading) {
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flag_loading = true;
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new RetrieveStoriesAsyncTask(context, max_id, userId, DisplayStoriesFragment.this);
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nextElementLoader.setVisibility(View.VISIBLE);
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}
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} else {
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nextElementLoader.setVisibility(View.GONE);
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}
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}
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}
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});
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swipeRefreshLayout.setOnRefreshListener(() -> {
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flag_loading = true;
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swiped = true;
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if (context != null)
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new RetrieveStoriesAsyncTask(context, null, userId, DisplayStoriesFragment.this);
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});
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int theme = sharedpreferences.getInt(Helper.SET_THEME, Helper.THEME_DARK);
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switch (theme) {
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case Helper.THEME_LIGHT:
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swipeRefreshLayout.setColorSchemeResources(R.color.mastodonC4,
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R.color.mastodonC2,
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R.color.mastodonC3);
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swipeRefreshLayout.setProgressBackgroundColorSchemeColor(ContextCompat.getColor(context, R.color.white));
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break;
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case Helper.THEME_DARK:
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swipeRefreshLayout.setColorSchemeResources(R.color.mastodonC4__,
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R.color.mastodonC4,
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R.color.mastodonC4);
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swipeRefreshLayout.setProgressBackgroundColorSchemeColor(ContextCompat.getColor(context, R.color.mastodonC1_));
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break;
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case Helper.THEME_BLACK:
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swipeRefreshLayout.setColorSchemeResources(R.color.dark_icon,
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R.color.mastodonC2,
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R.color.mastodonC3);
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swipeRefreshLayout.setProgressBackgroundColorSchemeColor(ContextCompat.getColor(context, R.color.black_3));
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break;
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}
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if (context != null)
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new RetrieveStoriesAsyncTask(context, max_id, userId, DisplayStoriesFragment.this);
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else
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new Handler(Looper.getMainLooper()).postDelayed(() -> {
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if (context != null)
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new RetrieveStoriesAsyncTask(context, max_id, userId, DisplayStoriesFragment.this);
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}, 500);
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return rootView;
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}
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@Override
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public void onRetrieveStories(APIResponse apiResponse) {
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mainLoader.setVisibility(View.GONE);
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nextElementLoader.setVisibility(View.GONE);
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if (apiResponse.getError() != null) {
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if (apiResponse.getError().getError().length() < 100) {
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Toasty.error(context, apiResponse.getError().getError(), Toast.LENGTH_LONG).show();
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} else {
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Toasty.error(context, getString(R.string.long_api_error, "\ud83d\ude05"), Toast.LENGTH_LONG).show();
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}
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flag_loading = false;
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swipeRefreshLayout.setRefreshing(false);
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swiped = false;
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return;
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}
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int previousPosition = pixelFedStories.size();
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max_id = apiResponse.getMax_id();
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List<PixelFedStory> pixelFedStories = apiResponse.getPixelFedStories();
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if (!swiped && firstLoad && (pixelFedStories == null || pixelFedStories.size() == 0))
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textviewNoAction.setVisibility(View.VISIBLE);
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else
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textviewNoAction.setVisibility(View.GONE);
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if (swiped) {
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if (previousPosition > 0) {
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this.pixelFedStories.subList(0, previousPosition).clear();
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pixelfedStoriesListAdapter.notifyItemRangeRemoved(0, previousPosition);
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}
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swiped = false;
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}
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if (pixelFedStories != null && pixelFedStories.size() > 0) {
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this.pixelFedStories.addAll(pixelFedStories);
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pixelfedStoriesListAdapter.notifyItemRangeInserted(previousPosition, pixelFedStories.size());
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} else {
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if (firstLoad)
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textviewNoAction.setVisibility(View.VISIBLE);
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}
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swipeRefreshLayout.setRefreshing(false);
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firstLoad = false;
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//The initial call comes from a classic tab refresh
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flag_loading = (max_id == null);
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}
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@Override
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public void onCreate(Bundle saveInstance) {
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super.onCreate(saveInstance);
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}
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@Override
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public void onAttach(@NotNull Context context) {
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super.onAttach(context);
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this.context = context;
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}
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@Override
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public void onDestroy() {
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super.onDestroy();
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}
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@Override
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public void onDestroyView() {
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if (lv_stories != null) {
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lv_stories.setAdapter(null);
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}
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super.onDestroyView();
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rootView = null;
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}
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@Override
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public void onResume() {
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super.onResume();
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swipeRefreshLayout.setEnabled(true);
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if (context == null)
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return;
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if (isVisible() && pixelFedStories != null && pixelFedStories.size() > 0) {
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retrieveMissingNotifications(pixelFedStories.get(0).getId());
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}
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}
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@Override
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public void onPause() {
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super.onPause();
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if (swipeRefreshLayout != null) {
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swipeRefreshLayout.setEnabled(false);
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swipeRefreshLayout.setRefreshing(false);
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swipeRefreshLayout.clearAnimation();
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}
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}
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/**
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* Called from main activity in onResume to retrieve missing notifications
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*
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* @param sinceId String
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*/
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private void retrieveMissingNotifications(String sinceId) {
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new RetrieveStoriesAsyncTask(context, null, userId, DisplayStoriesFragment.this);
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}
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@Override
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public void setMenuVisibility(final boolean visible) {
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super.setMenuVisibility(visible);
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if (context == null)
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return;
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//Store last notification id to avoid to notify for those that have been already seen
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if (visible && pixelFedStories != null && pixelFedStories.size() > 0) {
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retrieveMissingNotifications(pixelFedStories.get(0).getId());
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}
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}
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public void scrollToTop() {
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if (lv_stories != null)
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lv_stories.setAdapter(pixelfedStoriesListAdapter);
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}
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}
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