app/src/main/java/net/ktnx/mobileledger/ui/activity/MainActivity.java

   1 /*
   2  * Copyright © 2020 Damyan Ivanov.
   3  * This file is part of MoLe.
   4  * MoLe is free software: you can distribute it and/or modify it
   5  * under the term of the GNU General Public License as published by
   6  * the Free Software Foundation, either version 3 of the License, or
   7  * (at your opinion), any later version.
   8  *
   9  * MoLe is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  12  * GNU General Public License terms for details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with MoLe. If not, see <https://www.gnu.org/licenses/>.
  16  */
  17
  18 package net.ktnx.mobileledger.ui.activity;
  19
  20 import android.content.Intent;
  21 import android.content.SharedPreferences;
  22 import android.content.pm.PackageInfo;
  23 import android.content.pm.ShortcutInfo;
  24 import android.content.pm.ShortcutManager;
  25 import android.content.res.ColorStateList;
  26 import android.graphics.Color;
  27 import android.graphics.drawable.Icon;
  28 import android.os.AsyncTask;
  29 import android.os.Build;
  30 import android.os.Bundle;
  31 import android.util.Log;
  32 import android.view.View;
  33 import android.view.animation.AnimationUtils;
  34 import android.widget.LinearLayout;
  35 import android.widget.ProgressBar;
  36 import android.widget.TextView;
  37
  38 import androidx.annotation.NonNull;
  39 import androidx.appcompat.app.ActionBarDrawerToggle;
  40 import androidx.appcompat.widget.Toolbar;
  41 import androidx.core.view.GravityCompat;
  42 import androidx.drawerlayout.widget.DrawerLayout;
  43 import androidx.fragment.app.Fragment;
  44 import androidx.fragment.app.FragmentManager;
  45 import androidx.fragment.app.FragmentPagerAdapter;
  46 import androidx.recyclerview.widget.LinearLayoutManager;
  47 import androidx.recyclerview.widget.RecyclerView;
  48 import androidx.viewpager.widget.ViewPager;
  49
  50 import com.google.android.material.floatingactionbutton.FloatingActionButton;
  51 import com.google.android.material.snackbar.Snackbar;
  52
  53 import net.ktnx.mobileledger.R;
  54 import net.ktnx.mobileledger.async.RefreshDescriptionsTask;
  55 import net.ktnx.mobileledger.async.RetrieveTransactionsTask;
  56 import net.ktnx.mobileledger.model.Data;
  57 import net.ktnx.mobileledger.model.MobileLedgerProfile;
  58 import net.ktnx.mobileledger.ui.account_summary.AccountSummaryFragment;
  59 import net.ktnx.mobileledger.ui.profiles.ProfileDetailFragment;
  60 import net.ktnx.mobileledger.ui.profiles.ProfilesRecyclerViewAdapter;
  61 import net.ktnx.mobileledger.ui.transaction_list.TransactionListFragment;
  62 import net.ktnx.mobileledger.ui.transaction_list.TransactionListViewModel;
  63 import net.ktnx.mobileledger.utils.Colors;
  64 import net.ktnx.mobileledger.utils.Logger;
  65 import net.ktnx.mobileledger.utils.MLDB;
  66
  67 import org.jetbrains.annotations.NotNull;
  68
  69 import java.text.DateFormat;
  70 import java.util.ArrayList;
  71 import java.util.Date;
  72 import java.util.List;
  73 import java.util.Locale;
  74
  75 /*
  76  * TODO: reports
  77  *  */
  78
  79 public class MainActivity extends ProfileThemedActivity {
  80     public static final String STATE_CURRENT_PAGE = "current_page";
  81     public static final String BUNDLE_SAVED_STATE = "bundle_savedState";
  82     public static final String STATE_ACC_FILTER = "account_filter";
  83     private static final String PREF_THEME_ID = "themeId";
  84     DrawerLayout drawer;
  85     private View profileListHeadMore, profileListHeadCancel, profileListHeadAddProfile;
  86     private View bTransactionListCancelDownload;
  87     private SectionsPagerAdapter mSectionsPagerAdapter;
  88     private ViewPager mViewPager;
  89     private FloatingActionButton fab;
  90     private ProfilesRecyclerViewAdapter mProfileListAdapter;
  91     private int mCurrentPage;
  92     private boolean mBackMeansToAccountList = false;
  93     private Toolbar mToolbar;
  94     private DrawerLayout.SimpleDrawerListener drawerListener;
  95     private ActionBarDrawerToggle barDrawerToggle;
  96     private ViewPager.SimpleOnPageChangeListener pageChangeListener;
  97     private MobileLedgerProfile profile;
  98     @Override
  99     protected void onStart() {
 100         super.onStart();
 101
 102         Logger.debug("MainActivity", "onStart()");
 103
 104         mViewPager.setCurrentItem(mCurrentPage, false);
 105     }
 106     @Override
 107     protected void onSaveInstanceState(@NotNull Bundle outState) {
 108         super.onSaveInstanceState(outState);
 109         outState.putInt(STATE_CURRENT_PAGE, mViewPager.getCurrentItem());
 110         if (Data.accountFilter.getValue() != null)
 111             outState.putString(STATE_ACC_FILTER, Data.accountFilter.getValue());
 112     }
 113     @Override
 114     protected void onDestroy() {
 115         mSectionsPagerAdapter = null;
 116         RecyclerView root = findViewById(R.id.nav_profile_list);
 117         if (root != null)
 118             root.setAdapter(null);
 119         if (drawer != null)
 120             drawer.removeDrawerListener(drawerListener);
 121         drawerListener = null;
 122         if (drawer != null)
 123             drawer.removeDrawerListener(barDrawerToggle);
 124         barDrawerToggle = null;
 125         if (mViewPager != null)
 126             mViewPager.removeOnPageChangeListener(pageChangeListener);
 127         pageChangeListener = null;
 128         super.onDestroy();
 129     }
 130     @Override
 131     protected void setupProfileColors() {
 132         SharedPreferences prefs = getPreferences(MODE_PRIVATE);
 133         int profileColor = prefs.getInt(PREF_THEME_ID, -2);
 134         if (profileColor == -2)
 135             profileColor = Data.retrieveCurrentThemeIdFromDb();
 136         Colors.setupTheme(this, profileColor);
 137         Colors.profileThemeId = profileColor;
 138         storeThemeIdInPrefs(profileColor);
 139     }
 140     @Override
 141     protected void onResume() {
 142         super.onResume();
 143         fabShouldShow();
 144     }
 145     @Override
 146     protected void onCreate(Bundle savedInstanceState) {
 147         Logger.debug("MainActivity", "onCreate()/entry");
 148         super.onCreate(savedInstanceState);
 149         Logger.debug("MainActivity", "onCreate()/after super");
 150         setContentView(R.layout.activity_main);
 151
 152         fab = findViewById(R.id.btn_add_transaction);
 153         profileListHeadMore = findViewById(R.id.nav_profiles_start_edit);
 154         profileListHeadCancel = findViewById(R.id.nav_profiles_cancel_edit);
 155         LinearLayout profileListHeadMoreAndCancel =
 156                 findViewById(R.id.nav_profile_list_head_buttons);
 157         profileListHeadAddProfile = findViewById(R.id.nav_new_profile_button);
 158         drawer = findViewById(R.id.drawer_layout);
 159         bTransactionListCancelDownload = findViewById(R.id.transaction_list_cancel_download);
 160         mSectionsPagerAdapter = new SectionsPagerAdapter(getSupportFragmentManager());
 161         mViewPager = findViewById(R.id.root_frame);
 162
 163         Bundle extra = getIntent().getBundleExtra(BUNDLE_SAVED_STATE);
 164         if (extra != null && savedInstanceState == null)
 165             savedInstanceState = extra;
 166
 167
 168         mToolbar = findViewById(R.id.toolbar);
 169         setSupportActionBar(mToolbar);
 170
 171         Data.observeProfile(this, this::onProfileChanged);
 172
 173         Data.profiles.observe(this, this::onProfileListChanged);
 174         Data.backgroundTaskProgress.observe(this, this::onRetrieveProgress);
 175         Data.backgroundTasksRunning.observe(this, this::onRetrieveRunningChanged);
 176
 177         if (barDrawerToggle == null) {
 178             barDrawerToggle = new ActionBarDrawerToggle(this, drawer, mToolbar,
 179                     R.string.navigation_drawer_open, R.string.navigation_drawer_close);
 180             drawer.addDrawerListener(barDrawerToggle);
 181         }
 182         barDrawerToggle.syncState();
 183
 184         try {
 185             PackageInfo pi = getApplicationContext().getPackageManager()
 186                                                     .getPackageInfo(getPackageName(), 0);
 187             ((TextView) findViewById(R.id.nav_upper).findViewById(
 188                     R.id.drawer_version_text)).setText(pi.versionName);
 189             ((TextView) findViewById(R.id.no_profiles_layout).findViewById(
 190                     R.id.drawer_version_text)).setText(pi.versionName);
 191         }
 192         catch (Exception e) {
 193             e.printStackTrace();
 194         }
 195
 196         markDrawerItemCurrent(R.id.nav_account_summary);
 197
 198         mViewPager.setAdapter(mSectionsPagerAdapter);
 199
 200         if (pageChangeListener == null) {
 201             pageChangeListener = new ViewPager.SimpleOnPageChangeListener() {
 202                 @Override
 203                 public void onPageSelected(int position) {
 204                     mCurrentPage = position;
 205                     switch (position) {
 206                         case 0:
 207                             markDrawerItemCurrent(R.id.nav_account_summary);
 208                             break;
 209                         case 1:
 210                             markDrawerItemCurrent(R.id.nav_latest_transactions);
 211                             break;
 212                         default:
 213                             Log.e("MainActivity",
 214                                     String.format("Unexpected page index %d", position));
 215                     }
 216
 217                     super.onPageSelected(position);
 218                 }
 219             };
 220             mViewPager.addOnPageChangeListener(pageChangeListener);
 221         }
 222
 223         mCurrentPage = 0;
 224         if (savedInstanceState != null) {
 225             int currentPage = savedInstanceState.getInt(STATE_CURRENT_PAGE, -1);
 226             if (currentPage != -1) {
 227                 mCurrentPage = currentPage;
 228             }
 229             Data.accountFilter.setValue(savedInstanceState.getString(STATE_ACC_FILTER, null));
 230         }
 231
 232         Data.lastUpdateDate.observe(this, this::updateLastUpdateDisplay);
 233
 234         findViewById(R.id.btn_no_profiles_add).setOnClickListener(
 235                 v -> startEditProfileActivity(null));
 236
 237         findViewById(R.id.btn_add_transaction).setOnClickListener(this::fabNewTransactionClicked);
 238
 239         findViewById(R.id.nav_new_profile_button).setOnClickListener(
 240                 v -> startEditProfileActivity(null));
 241
 242         RecyclerView root = findViewById(R.id.nav_profile_list);
 243         if (root == null)
 244             throw new RuntimeException("Can't get hold on the transaction value view");
 245
 246         if (mProfileListAdapter == null)
 247             mProfileListAdapter = new ProfilesRecyclerViewAdapter();
 248         root.setAdapter(mProfileListAdapter);
 249
 250         mProfileListAdapter.editingProfiles.observe(this, newValue -> {
 251             if (newValue) {
 252                 profileListHeadMore.setVisibility(View.GONE);
 253                 profileListHeadCancel.setVisibility(View.VISIBLE);
 254                 profileListHeadAddProfile.setVisibility(View.VISIBLE);
 255                 if (drawer.isDrawerOpen(GravityCompat.START)) {
 256                     profileListHeadMore.startAnimation(
 257                             AnimationUtils.loadAnimation(MainActivity.this, R.anim.fade_out));
 258                     profileListHeadCancel.startAnimation(
 259                             AnimationUtils.loadAnimation(MainActivity.this, R.anim.fade_in));
 260                     profileListHeadAddProfile.startAnimation(
 261                             AnimationUtils.loadAnimation(MainActivity.this, R.anim.fade_in));
 262                 }
 263             }
 264             else {
 265                 profileListHeadCancel.setVisibility(View.GONE);
 266                 profileListHeadMore.setVisibility(View.VISIBLE);
 267                 profileListHeadAddProfile.setVisibility(View.GONE);
 268                 if (drawer.isDrawerOpen(GravityCompat.START)) {
 269                     profileListHeadCancel.startAnimation(
 270                             AnimationUtils.loadAnimation(MainActivity.this, R.anim.fade_out));
 271                     profileListHeadMore.startAnimation(
 272                             AnimationUtils.loadAnimation(MainActivity.this, R.anim.fade_in));
 273                     profileListHeadAddProfile.startAnimation(
 274                             AnimationUtils.loadAnimation(MainActivity.this, R.anim.fade_out));
 275                 }
 276             }
 277
 278             mProfileListAdapter.notifyDataSetChanged();
 279         });
 280
 281         LinearLayoutManager llm = new LinearLayoutManager(this);
 282
 283         llm.setOrientation(RecyclerView.VERTICAL);
 284         root.setLayoutManager(llm);
 285
 286         profileListHeadMore.setOnClickListener((v) -> mProfileListAdapter.flipEditingProfiles());
 287         profileListHeadCancel.setOnClickListener((v) -> mProfileListAdapter.flipEditingProfiles());
 288         profileListHeadMoreAndCancel.setOnClickListener(
 289                 (v) -> mProfileListAdapter.flipEditingProfiles());
 290         if (drawerListener == null) {
 291             drawerListener = new DrawerLayout.SimpleDrawerListener() {
 292                 @Override
 293                 public void onDrawerSlide(@NonNull View drawerView, float slideOffset) {
 294                     if (slideOffset > 0.2)
 295                         fabHide();
 296                 }
 297                 @Override
 298                 public void onDrawerClosed(View drawerView) {
 299                     super.onDrawerClosed(drawerView);
 300                     mProfileListAdapter.setAnimationsEnabled(false);
 301                     mProfileListAdapter.editingProfiles.setValue(false);
 302                     Data.drawerOpen.setValue(false);
 303                     fabShouldShow();
 304                 }
 305                 @Override
 306                 public void onDrawerOpened(View drawerView) {
 307                     super.onDrawerOpened(drawerView);
 308                     mProfileListAdapter.setAnimationsEnabled(true);
 309                     Data.drawerOpen.setValue(true);
 310                     fabHide();
 311                 }
 312             };
 313             drawer.addDrawerListener(drawerListener);
 314         }
 315
 316         Data.drawerOpen.observe(this, open -> {
 317             if (open)
 318                 drawer.open();
 319             else
 320                 drawer.close();
 321         });
 322     }
 323     private void scheduleDataRetrievalIfStale(Date lastUpdate) {
 324         long now = new Date().getTime();
 325         if ((lastUpdate == null) || (now > (lastUpdate.getTime() + (24 * 3600 * 1000)))) {
 326             if (lastUpdate == null)
 327                 Logger.debug("db::", "WEB data never fetched. scheduling a fetch");
 328             else
 329                 Logger.debug("db", String.format(Locale.ENGLISH,
 330                         "WEB data last fetched at %1.3f and now is %1.3f. re-fetching",
 331                         lastUpdate.getTime() / 1000f, now / 1000f));
 332
 333             scheduleDataRetrieval();
 334         }
 335     }
 336     public void scheduleDataRetrieval() {
 337         Data.scheduleTransactionListRetrieval();
 338     }
 339     private void createShortcuts(List<MobileLedgerProfile> list) {
 340         if (Build.VERSION.SDK_INT < Build.VERSION_CODES.N_MR1)
 341             return;
 342
 343         ShortcutManager sm = getSystemService(ShortcutManager.class);
 344         List<ShortcutInfo> shortcuts = new ArrayList<>();
 345         int i = 0;
 346         for (MobileLedgerProfile p : list) {
 347             if (shortcuts.size() >= sm.getMaxShortcutCountPerActivity())
 348                 break;
 349
 350             if (!p.isPostingPermitted())
 351                 continue;
 352
 353             final ShortcutInfo.Builder builder =
 354                     new ShortcutInfo.Builder(this, "new_transaction_" + p.getUuid());
 355             ShortcutInfo si = builder.setShortLabel(p.getName())
 356                                      .setIcon(Icon.createWithResource(this,
 357                                              R.drawable.thick_plus_icon))
 358                                      .setIntent(new Intent(Intent.ACTION_VIEW, null, this,
 359                                              NewTransactionActivity.class).putExtra("profile_uuid",
 360                                              p.getUuid()))
 361                                      .setRank(i)
 362                                      .build();
 363             shortcuts.add(si);
 364             i++;
 365         }
 366         sm.setDynamicShortcuts(shortcuts);
 367     }
 368     private void onProfileListChanged(List<MobileLedgerProfile> newList) {
 369         if ((newList == null) || newList.isEmpty()) {
 370             findViewById(R.id.no_profiles_layout).setVisibility(View.VISIBLE);
 371             findViewById(R.id.main_app_layout).setVisibility(View.GONE);
 372             return;
 373         }
 374
 375         findViewById(R.id.main_app_layout).setVisibility(View.VISIBLE);
 376         findViewById(R.id.no_profiles_layout).setVisibility(View.GONE);
 377
 378         findViewById(R.id.nav_profile_list).setMinimumHeight(
 379                 (int) (getResources().getDimension(R.dimen.thumb_row_height) * newList.size()));
 380
 381         Logger.debug("profiles", "profile list changed");
 382         mProfileListAdapter.notifyDataSetChanged();
 383
 384         createShortcuts(newList);
 385     }
 386     /**
 387      * called when the current profile has changed
 388      */
 389     private void onProfileChanged(MobileLedgerProfile profile) {
 390         if (this.profile == null) {
 391             if (profile == null)
 392                 return;
 393         }
 394         else {
 395             if (this.profile.equals(profile))
 396                 return;
 397         }
 398
 399         boolean haveProfile = profile != null;
 400
 401         if (haveProfile)
 402             setTitle(profile.getName());
 403         else
 404             setTitle(R.string.app_name);
 405
 406         if (this.profile != null)
 407             this.profile.getDisplayedAccounts()
 408                         .removeObservers(this);
 409
 410         this.profile = profile;
 411
 412         int newProfileTheme = haveProfile ? profile.getThemeHue() : -1;
 413         if (newProfileTheme != Colors.profileThemeId) {
 414             Logger.debug("profiles",
 415                     String.format(Locale.ENGLISH, "profile theme %d → %d", Colors.profileThemeId,
 416                             newProfileTheme));
 417             Colors.profileThemeId = newProfileTheme;
 418             profileThemeChanged();
 419             // profileThemeChanged would restart the activity, so no need to reload the
 420             // data sets below
 421             return;
 422         }
 423
 424         findViewById(R.id.no_profiles_layout).setVisibility(haveProfile ? View.GONE : View.VISIBLE);
 425         findViewById(R.id.pager_layout).setVisibility(haveProfile ? View.VISIBLE : View.VISIBLE);
 426
 427         mProfileListAdapter.notifyDataSetChanged();
 428
 429         Data.transactions.clear();
 430         Logger.debug("transactions", "requesting list reload");
 431         TransactionListViewModel.scheduleTransactionListReload();
 432
 433         if (haveProfile) {
 434             profile.scheduleAccountListReload();
 435
 436             if (profile.isPostingPermitted()) {
 437                 mToolbar.setSubtitle(null);
 438                 fab.show();
 439             }
 440             else {
 441                 mToolbar.setSubtitle(R.string.profile_subtitle_read_only);
 442                 fab.hide();
 443             }
 444         }
 445         else {
 446             mToolbar.setSubtitle(null);
 447             fab.hide();
 448         }
 449
 450         updateLastUpdateTextFromDB();
 451     }
 452     private void updateLastUpdateDisplay(Date newValue) {
 453         LinearLayout l = findViewById(R.id.transactions_last_update_layout);
 454         TextView v = findViewById(R.id.transactions_last_update);
 455         if (newValue == null) {
 456             l.setVisibility(View.INVISIBLE);
 457             Logger.debug("main", "no last update date :(");
 458         }
 459         else {
 460             final String text = DateFormat.getDateTimeInstance()
 461                                           .format(newValue);
 462             v.setText(text);
 463             l.setVisibility(View.VISIBLE);
 464             Logger.debug("main", String.format("Date formatted: %s", text));
 465         }
 466
 467         scheduleDataRetrievalIfStale(newValue);
 468     }
 469     private void profileThemeChanged() {
 470         storeThemeIdInPrefs(profile.getThemeHue());
 471
 472         // un-hook all observed LiveData
 473         Data.removeProfileObservers(this);
 474         Data.profiles.removeObservers(this);
 475         Data.lastUpdateDate.removeObservers(this);
 476
 477         recreate();
 478     }
 479     private void storeThemeIdInPrefs(int themeId) {
 480         // store the new theme id in the preferences
 481         SharedPreferences prefs = getPreferences(MODE_PRIVATE);
 482         SharedPreferences.Editor e = prefs.edit();
 483         e.putInt(PREF_THEME_ID, themeId);
 484         e.apply();
 485     }
 486     public void startEditProfileActivity(MobileLedgerProfile profile) {
 487         Intent intent = new Intent(this, ProfileDetailActivity.class);
 488         Bundle args = new Bundle();
 489         if (profile != null) {
 490             int index = Data.getProfileIndex(profile);
 491             if (index != -1)
 492                 intent.putExtra(ProfileDetailFragment.ARG_ITEM_ID, index);
 493         }
 494         intent.putExtras(args);
 495         startActivity(intent, args);
 496     }
 497     public void fabNewTransactionClicked(View view) {
 498         Intent intent = new Intent(this, NewTransactionActivity.class);
 499         startActivity(intent);
 500         overridePendingTransition(R.anim.slide_in_up, R.anim.dummy);
 501     }
 502     public void markDrawerItemCurrent(int id) {
 503         TextView item = drawer.findViewById(id);
 504         item.setBackgroundColor(Colors.tableRowDarkBG);
 505
 506         LinearLayout actions = drawer.findViewById(R.id.nav_actions);
 507         for (int i = 0; i < actions.getChildCount(); i++) {
 508             View view = actions.getChildAt(i);
 509             if (view.getId() != id) {
 510                 view.setBackgroundColor(Color.TRANSPARENT);
 511             }
 512         }
 513     }
 514     public void onAccountSummaryClicked(View view) {
 515         drawer.closeDrawers();
 516
 517         showAccountSummaryFragment();
 518     }
 519     private void showAccountSummaryFragment() {
 520         mViewPager.setCurrentItem(0, true);
 521         Data.accountFilter.setValue(null);
 522     }
 523     public void onLatestTransactionsClicked(View view) {
 524         drawer.closeDrawers();
 525
 526         showTransactionsFragment(null);
 527     }
 528     public void showTransactionsFragment(String accName) {
 529         Data.accountFilter.setValue(accName);
 530         mViewPager.setCurrentItem(1, true);
 531     }
 532     public void showAccountTransactions(String accountName) {
 533         mBackMeansToAccountList = true;
 534         showTransactionsFragment(accountName);
 535     }
 536     @Override
 537     public void onBackPressed() {
 538         DrawerLayout drawer = findViewById(R.id.drawer_layout);
 539         if (drawer.isDrawerOpen(GravityCompat.START)) {
 540             drawer.closeDrawer(GravityCompat.START);
 541         }
 542         else {
 543             if (mBackMeansToAccountList && (mViewPager.getCurrentItem() == 1)) {
 544                 Data.accountFilter.setValue(null);
 545                 showAccountSummaryFragment();
 546                 mBackMeansToAccountList = false;
 547             }
 548             else {
 549                 Logger.debug("fragments", String.format(Locale.ENGLISH, "manager stack: %d",
 550                         getSupportFragmentManager().getBackStackEntryCount()));
 551
 552                 super.onBackPressed();
 553             }
 554         }
 555     }
 556     public void updateLastUpdateTextFromDB() {
 557         if (profile == null)
 558             return;
 559
 560         long last_update = profile.getLongOption(MLDB.OPT_LAST_SCRAPE, 0L);
 561
 562         Logger.debug("transactions", String.format(Locale.ENGLISH, "Last update = %d", last_update));
 563         if (last_update == 0) {
 564             Data.lastUpdateDate.postValue(null);
 565         }
 566         else {
 567             Data.lastUpdateDate.postValue(new Date(last_update));
 568         }
 569     }
 570     public void onStopTransactionRefreshClick(View view) {
 571         Logger.debug("interactive", "Cancelling transactions refresh");
 572         Data.stopTransactionsRetrieval();
 573         bTransactionListCancelDownload.setEnabled(false);
 574     }
 575     public void onRetrieveRunningChanged(Boolean running) {
 576         final View progressLayout = findViewById(R.id.transaction_progress_layout);
 577         if (running) {
 578             ProgressBar progressBar = findViewById(R.id.transaction_list_progress_bar);
 579             bTransactionListCancelDownload.setEnabled(true);
 580             ColorStateList csl = Colors.getColorStateList();
 581             progressBar.setIndeterminateTintList(csl);
 582             progressBar.setProgressTintList(csl);
 583             progressBar.setIndeterminate(true);
 584             if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
 585                 progressBar.setProgress(0, false);
 586             }
 587             else {
 588                 progressBar.setProgress(0);
 589             }
 590             progressLayout.setVisibility(View.VISIBLE);
 591         }
 592         else {
 593             progressLayout.setVisibility(View.GONE);
 594         }
 595     }
 596     public void onRetrieveProgress(RetrieveTransactionsTask.Progress progress) {
 597         ProgressBar progressBar = findViewById(R.id.transaction_list_progress_bar);
 598
 599         if (progress.getState() == RetrieveTransactionsTask.ProgressState.FINISHED) {
 600             Logger.debug("progress", "Done");
 601             findViewById(R.id.transaction_progress_layout).setVisibility(View.GONE);
 602
 603             Data.transactionRetrievalDone();
 604
 605             if (progress.getError() != null) {
 606                 Snackbar.make(mViewPager, progress.getError(), Snackbar.LENGTH_LONG)
 607                         .show();
 608                 return;
 609             }
 610
 611             updateLastUpdateTextFromDB();
 612
 613             new RefreshDescriptionsTask().executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR);
 614             TransactionListViewModel.scheduleTransactionListReload();
 615
 616             return;
 617         }
 618
 619
 620         bTransactionListCancelDownload.setEnabled(true);
 621 //        ColorStateList csl = Colors.getColorStateList();
 622 //        progressBar.setIndeterminateTintList(csl);
 623 //        progressBar.setProgressTintList(csl);
 624 //        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N)
 625 //            progressBar.setProgress(0, false);
 626 //        else
 627 //            progressBar.setProgress(0);
 628         findViewById(R.id.transaction_progress_layout).setVisibility(View.VISIBLE);
 629
 630         if (progress.isIndeterminate() || (progress.getTotal() <= 0)) {
 631             progressBar.setIndeterminate(true);
 632             Logger.debug("progress", "indeterminate");
 633         }
 634         else {
 635             if (progressBar.isIndeterminate()) {
 636                 progressBar.setIndeterminate(false);
 637             }
 638             Logger.debug("progress",
 639                     String.format(Locale.US, "%d/%d", progress.getProgress(), progress.getTotal()));
 640             progressBar.setMax(progress.getTotal());
 641             // for some reason animation doesn't work - no progress is shown (stick at 0)
 642             // on lineageOS 14.1 (Nougat, 7.1.2)
 643             if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N)
 644                 progressBar.setProgress(progress.getProgress(), false);
 645             else
 646                 progressBar.setProgress(progress.getProgress());
 647         }
 648     }
 649     public void fabShouldShow() {
 650         if ((profile != null) && profile.isPostingPermitted() && !drawer.isOpen())
 651             fab.show();
 652         else
 653             fabHide();
 654     }
 655     public void fabHide() {
 656         fab.hide();
 657     }
 658
 659     public static class SectionsPagerAdapter extends FragmentPagerAdapter {
 660
 661         SectionsPagerAdapter(FragmentManager fm) {
 662             super(fm, BEHAVIOR_RESUME_ONLY_CURRENT_FRAGMENT);
 663         }
 664
 665         @NotNull
 666         @Override
 667         public Fragment getItem(int position) {
 668             Logger.debug("main", String.format(Locale.ENGLISH, "Switching to fragment %d", position));
 669             switch (position) {
 670                 case 0:
 671 //                    debug("flow", "Creating account summary fragment");
 672                     return new AccountSummaryFragment();
 673                 case 1:
 674                     return new TransactionListFragment();
 675                 default:
 676                     throw new IllegalStateException(
 677                             String.format("Unexpected fragment index: " + "%d", position));
 678             }
 679         }
 680
 681         @Override
 682         public int getCount() {
 683             return 2;
 684         }
 685     }
 686 }