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 import static net.ktnx.mobileledger.utils.Logger.debug;
  76
  77 /*
  78  * TODO: reports
  79  *  */
  80
  81 public class MainActivity extends ProfileThemedActivity {
  82     public static final String STATE_CURRENT_PAGE = "current_page";
  83     public static final String BUNDLE_SAVED_STATE = "bundle_savedState";
  84     public static final String STATE_ACC_FILTER = "account_filter";
  85     private static final String PREF_THEME_ID = "themeId";
  86     DrawerLayout drawer;
  87     private View profileListHeadMore, profileListHeadCancel, profileListHeadAddProfile;
  88     private View bTransactionListCancelDownload;
  89     private SectionsPagerAdapter mSectionsPagerAdapter;
  90     private ViewPager mViewPager;
  91     private FloatingActionButton fab;
  92     private ProfilesRecyclerViewAdapter mProfileListAdapter;
  93     private int mCurrentPage;
  94     private boolean mBackMeansToAccountList = false;
  95     private Toolbar mToolbar;
  96     private DrawerLayout.SimpleDrawerListener drawerListener;
  97     private ActionBarDrawerToggle barDrawerToggle;
  98     private ViewPager.SimpleOnPageChangeListener pageChangeListener;
  99     private MobileLedgerProfile profile;
 100     @Override
 101     protected void onStart() {
 102         super.onStart();
 103
 104         Logger.debug("MainActivity", "onStart()");
 105
 106         mViewPager.setCurrentItem(mCurrentPage, false);
 107     }
 108     @Override
 109     protected void onSaveInstanceState(@NotNull Bundle outState) {
 110         super.onSaveInstanceState(outState);
 111         outState.putInt(STATE_CURRENT_PAGE, mViewPager.getCurrentItem());
 112         if (Data.accountFilter.getValue() != null)
 113             outState.putString(STATE_ACC_FILTER, Data.accountFilter.getValue());
 114     }
 115     @Override
 116     protected void onDestroy() {
 117         mSectionsPagerAdapter = null;
 118         RecyclerView root = findViewById(R.id.nav_profile_list);
 119         if (root != null)
 120             root.setAdapter(null);
 121         if (drawer != null)
 122             drawer.removeDrawerListener(drawerListener);
 123         drawerListener = null;
 124         if (drawer != null)
 125             drawer.removeDrawerListener(barDrawerToggle);
 126         barDrawerToggle = null;
 127         if (mViewPager != null)
 128             mViewPager.removeOnPageChangeListener(pageChangeListener);
 129         pageChangeListener = null;
 130         super.onDestroy();
 131     }
 132     @Override
 133     protected void setupProfileColors() {
 134         SharedPreferences prefs = getPreferences(MODE_PRIVATE);
 135         int profileColor = prefs.getInt(PREF_THEME_ID, -2);
 136         if (profileColor == -2)
 137             profileColor = Data.retrieveCurrentThemeIdFromDb();
 138         Colors.setupTheme(this, profileColor);
 139         Colors.profileThemeId = profileColor;
 140         storeThemeIdInPrefs(profileColor);
 141     }
 142     @Override
 143     protected void onResume() {
 144         super.onResume();
 145         fabShouldShow();
 146     }
 147     @Override
 148     protected void onCreate(Bundle savedInstanceState) {
 149         debug("MainActivity", "onCreate()/entry");
 150         super.onCreate(savedInstanceState);
 151         debug("MainActivity", "onCreate()/after super");
 152         setContentView(R.layout.activity_main);
 153
 154         fab = findViewById(R.id.btn_add_transaction);
 155         profileListHeadMore = findViewById(R.id.nav_profiles_start_edit);
 156         profileListHeadCancel = findViewById(R.id.nav_profiles_cancel_edit);
 157         LinearLayout profileListHeadMoreAndCancel =
 158                 findViewById(R.id.nav_profile_list_head_buttons);
 159         profileListHeadAddProfile = findViewById(R.id.nav_new_profile_button);
 160         drawer = findViewById(R.id.drawer_layout);
 161         bTransactionListCancelDownload = findViewById(R.id.transaction_list_cancel_download);
 162         mSectionsPagerAdapter = new SectionsPagerAdapter(getSupportFragmentManager());
 163         mViewPager = findViewById(R.id.root_frame);
 164
 165         Bundle extra = getIntent().getBundleExtra(BUNDLE_SAVED_STATE);
 166         if (extra != null && savedInstanceState == null)
 167             savedInstanceState = extra;
 168
 169
 170         mToolbar = findViewById(R.id.toolbar);
 171         setSupportActionBar(mToolbar);
 172
 173         Data.observeProfile(this, this::onProfileChanged);
 174
 175         Data.profiles.observe(this, this::onProfileListChanged);
 176         Data.backgroundTaskProgress.observe(this, this::onRetrieveProgress);
 177         Data.backgroundTasksRunning.observe(this, this::onRetrieveRunningChanged);
 178
 179         if (barDrawerToggle == null) {
 180             barDrawerToggle = new ActionBarDrawerToggle(this, drawer, mToolbar,
 181                     R.string.navigation_drawer_open, R.string.navigation_drawer_close);
 182             drawer.addDrawerListener(barDrawerToggle);
 183         }
 184         barDrawerToggle.syncState();
 185
 186         try {
 187             PackageInfo pi = getApplicationContext().getPackageManager()
 188                                                     .getPackageInfo(getPackageName(), 0);
 189             ((TextView) findViewById(R.id.nav_upper).findViewById(
 190                     R.id.drawer_version_text)).setText(pi.versionName);
 191             ((TextView) findViewById(R.id.no_profiles_layout).findViewById(
 192                     R.id.drawer_version_text)).setText(pi.versionName);
 193         }
 194         catch (Exception e) {
 195             e.printStackTrace();
 196         }
 197
 198         markDrawerItemCurrent(R.id.nav_account_summary);
 199
 200         mViewPager.setAdapter(mSectionsPagerAdapter);
 201
 202         if (pageChangeListener == null) {
 203             pageChangeListener = new ViewPager.SimpleOnPageChangeListener() {
 204                 @Override
 205                 public void onPageSelected(int position) {
 206                     mCurrentPage = position;
 207                     switch (position) {
 208                         case 0:
 209                             markDrawerItemCurrent(R.id.nav_account_summary);
 210                             break;
 211                         case 1:
 212                             markDrawerItemCurrent(R.id.nav_latest_transactions);
 213                             break;
 214                         default:
 215                             Log.e("MainActivity",
 216                                     String.format("Unexpected page index %d", position));
 217                     }
 218
 219                     super.onPageSelected(position);
 220                 }
 221             };
 222             mViewPager.addOnPageChangeListener(pageChangeListener);
 223         }
 224
 225         mCurrentPage = 0;
 226         if (savedInstanceState != null) {
 227             int currentPage = savedInstanceState.getInt(STATE_CURRENT_PAGE, -1);
 228             if (currentPage != -1) {
 229                 mCurrentPage = currentPage;
 230             }
 231             Data.accountFilter.setValue(savedInstanceState.getString(STATE_ACC_FILTER, null));
 232         }
 233
 234         Data.lastUpdateDate.observe(this, this::updateLastUpdateDisplay);
 235
 236         findViewById(R.id.btn_no_profiles_add).setOnClickListener(
 237                 v -> startEditProfileActivity(null));
 238
 239         findViewById(R.id.btn_add_transaction).setOnClickListener(this::fabNewTransactionClicked);
 240
 241         findViewById(R.id.nav_new_profile_button).setOnClickListener(
 242                 v -> startEditProfileActivity(null));
 243
 244         RecyclerView root = findViewById(R.id.nav_profile_list);
 245         if (root == null)
 246             throw new RuntimeException("Can't get hold on the transaction value view");
 247
 248         if (mProfileListAdapter == null)
 249             mProfileListAdapter = new ProfilesRecyclerViewAdapter();
 250         root.setAdapter(mProfileListAdapter);
 251
 252         mProfileListAdapter.editingProfiles.observe(this, newValue -> {
 253             if (newValue) {
 254                 profileListHeadMore.setVisibility(View.GONE);
 255                 profileListHeadCancel.setVisibility(View.VISIBLE);
 256                 profileListHeadAddProfile.setVisibility(View.VISIBLE);
 257                 if (drawer.isDrawerOpen(GravityCompat.START)) {
 258                     profileListHeadMore.startAnimation(
 259                             AnimationUtils.loadAnimation(MainActivity.this, R.anim.fade_out));
 260                     profileListHeadCancel.startAnimation(
 261                             AnimationUtils.loadAnimation(MainActivity.this, R.anim.fade_in));
 262                     profileListHeadAddProfile.startAnimation(
 263                             AnimationUtils.loadAnimation(MainActivity.this, R.anim.fade_in));
 264                 }
 265             }
 266             else {
 267                 profileListHeadCancel.setVisibility(View.GONE);
 268                 profileListHeadMore.setVisibility(View.VISIBLE);
 269                 profileListHeadAddProfile.setVisibility(View.GONE);
 270                 if (drawer.isDrawerOpen(GravityCompat.START)) {
 271                     profileListHeadCancel.startAnimation(
 272                             AnimationUtils.loadAnimation(MainActivity.this, R.anim.fade_out));
 273                     profileListHeadMore.startAnimation(
 274                             AnimationUtils.loadAnimation(MainActivity.this, R.anim.fade_in));
 275                     profileListHeadAddProfile.startAnimation(
 276                             AnimationUtils.loadAnimation(MainActivity.this, R.anim.fade_out));
 277                 }
 278             }
 279
 280             mProfileListAdapter.notifyDataSetChanged();
 281         });
 282
 283         LinearLayoutManager llm = new LinearLayoutManager(this);
 284
 285         llm.setOrientation(RecyclerView.VERTICAL);
 286         root.setLayoutManager(llm);
 287
 288         profileListHeadMore.setOnClickListener((v) -> mProfileListAdapter.flipEditingProfiles());
 289         profileListHeadCancel.setOnClickListener((v) -> mProfileListAdapter.flipEditingProfiles());
 290         profileListHeadMoreAndCancel.setOnClickListener(
 291                 (v) -> mProfileListAdapter.flipEditingProfiles());
 292         if (drawerListener == null) {
 293             drawerListener = new DrawerLayout.SimpleDrawerListener() {
 294                 @Override
 295                 public void onDrawerSlide(@NonNull View drawerView, float slideOffset) {
 296                     if (slideOffset > 0.2)
 297                         fabHide();
 298                 }
 299                 @Override
 300                 public void onDrawerClosed(View drawerView) {
 301                     super.onDrawerClosed(drawerView);
 302                     mProfileListAdapter.setAnimationsEnabled(false);
 303                     mProfileListAdapter.editingProfiles.setValue(false);
 304                     Data.drawerOpen.setValue(false);
 305                     fabShouldShow();
 306                 }
 307                 @Override
 308                 public void onDrawerOpened(View drawerView) {
 309                     super.onDrawerOpened(drawerView);
 310                     mProfileListAdapter.setAnimationsEnabled(true);
 311                     Data.drawerOpen.setValue(true);
 312                     fabHide();
 313                 }
 314             };
 315             drawer.addDrawerListener(drawerListener);
 316         }
 317
 318         Data.drawerOpen.observe(this, open -> {
 319             if (open)
 320                 drawer.open();
 321             else
 322                 drawer.close();
 323         });
 324     }
 325     private void scheduleDataRetrievalIfStale(Date lastUpdate) {
 326         long now = new Date().getTime();
 327         if ((lastUpdate == null) || (now > (lastUpdate.getTime() + (24 * 3600 * 1000)))) {
 328             if (lastUpdate == null)
 329                 debug("db::", "WEB data never fetched. scheduling a fetch");
 330             else
 331                 debug("db", String.format(Locale.ENGLISH,
 332                         "WEB data last fetched at %1.3f and now is %1.3f. re-fetching",
 333                         lastUpdate.getTime() / 1000f, now / 1000f));
 334
 335             scheduleDataRetrieval();
 336         }
 337     }
 338     public void scheduleDataRetrieval() {
 339         Data.scheduleTransactionListRetrieval();
 340     }
 341     private void createShortcuts(List<MobileLedgerProfile> list) {
 342         if (Build.VERSION.SDK_INT < Build.VERSION_CODES.N_MR1)
 343             return;
 344
 345         ShortcutManager sm = getSystemService(ShortcutManager.class);
 346         List<ShortcutInfo> shortcuts = new ArrayList<>();
 347         int i = 0;
 348         for (MobileLedgerProfile p : list) {
 349             if (shortcuts.size() >= sm.getMaxShortcutCountPerActivity())
 350                 break;
 351
 352             if (!p.isPostingPermitted())
 353                 continue;
 354
 355             final ShortcutInfo.Builder builder =
 356                     new ShortcutInfo.Builder(this, "new_transaction_" + p.getUuid());
 357             ShortcutInfo si = builder.setShortLabel(p.getName())
 358                                      .setIcon(Icon.createWithResource(this,
 359                                              R.drawable.thick_plus_icon))
 360                                      .setIntent(new Intent(Intent.ACTION_VIEW, null, this,
 361                                              NewTransactionActivity.class).putExtra("profile_uuid",
 362                                              p.getUuid()))
 363                                      .setRank(i)
 364                                      .build();
 365             shortcuts.add(si);
 366             i++;
 367         }
 368         sm.setDynamicShortcuts(shortcuts);
 369     }
 370     private void onProfileListChanged(List<MobileLedgerProfile> newList) {
 371         if ((newList == null) || newList.isEmpty()) {
 372             findViewById(R.id.no_profiles_layout).setVisibility(View.VISIBLE);
 373             findViewById(R.id.main_app_layout).setVisibility(View.GONE);
 374             return;
 375         }
 376
 377         findViewById(R.id.main_app_layout).setVisibility(View.VISIBLE);
 378         findViewById(R.id.no_profiles_layout).setVisibility(View.GONE);
 379
 380         findViewById(R.id.nav_profile_list).setMinimumHeight(
 381                 (int) (getResources().getDimension(R.dimen.thumb_row_height) * newList.size()));
 382
 383         debug("profiles", "profile list changed");
 384         mProfileListAdapter.notifyDataSetChanged();
 385
 386         createShortcuts(newList);
 387     }
 388     /**
 389      * called when the current profile has changed
 390      */
 391     private void onProfileChanged(MobileLedgerProfile profile) {
 392         if (this.profile == null) {
 393             if (profile == null)
 394                 return;
 395         }
 396         else {
 397             if (this.profile.equals(profile))
 398                 return;
 399         }
 400
 401         boolean haveProfile = profile != null;
 402
 403         if (haveProfile)
 404             setTitle(profile.getName());
 405         else
 406             setTitle(R.string.app_name);
 407
 408         if (this.profile != null)
 409             this.profile.getDisplayedAccounts()
 410                         .removeObservers(this);
 411
 412         this.profile = profile;
 413
 414         int newProfileTheme = haveProfile ? profile.getThemeHue() : -1;
 415         if (newProfileTheme != Colors.profileThemeId) {
 416             debug("profiles",
 417                     String.format(Locale.ENGLISH, "profile theme %d → %d", Colors.profileThemeId,
 418                             newProfileTheme));
 419             Colors.profileThemeId = newProfileTheme;
 420             profileThemeChanged();
 421             // profileThemeChanged would restart the activity, so no need to reload the
 422             // data sets below
 423             return;
 424         }
 425
 426         findViewById(R.id.no_profiles_layout).setVisibility(haveProfile ? View.GONE : View.VISIBLE);
 427         findViewById(R.id.pager_layout).setVisibility(haveProfile ? View.VISIBLE : View.VISIBLE);
 428
 429         mProfileListAdapter.notifyDataSetChanged();
 430
 431         Data.transactions.clear();
 432         debug("transactions", "requesting list reload");
 433         TransactionListViewModel.scheduleTransactionListReload();
 434
 435         if (haveProfile) {
 436             profile.scheduleAccountListReload();
 437
 438             if (profile.isPostingPermitted()) {
 439                 mToolbar.setSubtitle(null);
 440                 fab.show();
 441             }
 442             else {
 443                 mToolbar.setSubtitle(R.string.profile_subtitle_read_only);
 444                 fab.hide();
 445             }
 446         }
 447         else {
 448             mToolbar.setSubtitle(null);
 449             fab.hide();
 450         }
 451
 452         updateLastUpdateTextFromDB();
 453     }
 454     private void updateLastUpdateDisplay(Date newValue) {
 455         LinearLayout l = findViewById(R.id.transactions_last_update_layout);
 456         TextView v = findViewById(R.id.transactions_last_update);
 457         if (newValue == null) {
 458             l.setVisibility(View.INVISIBLE);
 459             debug("main", "no last update date :(");
 460         }
 461         else {
 462             final String text = DateFormat.getDateTimeInstance()
 463                                           .format(newValue);
 464             v.setText(text);
 465             l.setVisibility(View.VISIBLE);
 466             debug("main", String.format("Date formatted: %s", text));
 467         }
 468
 469         scheduleDataRetrievalIfStale(newValue);
 470     }
 471     private void profileThemeChanged() {
 472         storeThemeIdInPrefs(profile.getThemeHue());
 473
 474         // un-hook all observed LiveData
 475         Data.removeProfileObservers(this);
 476         Data.profiles.removeObservers(this);
 477         Data.lastUpdateDate.removeObservers(this);
 478
 479         recreate();
 480     }
 481     private void storeThemeIdInPrefs(int themeId) {
 482         // store the new theme id in the preferences
 483         SharedPreferences prefs = getPreferences(MODE_PRIVATE);
 484         SharedPreferences.Editor e = prefs.edit();
 485         e.putInt(PREF_THEME_ID, themeId);
 486         e.apply();
 487     }
 488     public void startEditProfileActivity(MobileLedgerProfile profile) {
 489         Intent intent = new Intent(this, ProfileDetailActivity.class);
 490         Bundle args = new Bundle();
 491         if (profile != null) {
 492             int index = Data.getProfileIndex(profile);
 493             if (index != -1)
 494                 intent.putExtra(ProfileDetailFragment.ARG_ITEM_ID, index);
 495         }
 496         intent.putExtras(args);
 497         startActivity(intent, args);
 498     }
 499     public void fabNewTransactionClicked(View view) {
 500         Intent intent = new Intent(this, NewTransactionActivity.class);
 501         startActivity(intent);
 502         overridePendingTransition(R.anim.slide_in_up, R.anim.dummy);
 503     }
 504     public void markDrawerItemCurrent(int id) {
 505         TextView item = drawer.findViewById(id);
 506         item.setBackgroundColor(Colors.tableRowDarkBG);
 507
 508         LinearLayout actions = drawer.findViewById(R.id.nav_actions);
 509         for (int i = 0; i < actions.getChildCount(); i++) {
 510             View view = actions.getChildAt(i);
 511             if (view.getId() != id) {
 512                 view.setBackgroundColor(Color.TRANSPARENT);
 513             }
 514         }
 515     }
 516     public void onAccountSummaryClicked(View view) {
 517         drawer.closeDrawers();
 518
 519         showAccountSummaryFragment();
 520     }
 521     private void showAccountSummaryFragment() {
 522         mViewPager.setCurrentItem(0, true);
 523         Data.accountFilter.setValue(null);
 524     }
 525     public void onLatestTransactionsClicked(View view) {
 526         drawer.closeDrawers();
 527
 528         showTransactionsFragment(null);
 529     }
 530     public void showTransactionsFragment(String accName) {
 531         Data.accountFilter.setValue(accName);
 532         mViewPager.setCurrentItem(1, true);
 533     }
 534     public void showAccountTransactions(String accountName) {
 535         mBackMeansToAccountList = true;
 536         showTransactionsFragment(accountName);
 537     }
 538     @Override
 539     public void onBackPressed() {
 540         DrawerLayout drawer = findViewById(R.id.drawer_layout);
 541         if (drawer.isDrawerOpen(GravityCompat.START)) {
 542             drawer.closeDrawer(GravityCompat.START);
 543         }
 544         else {
 545             if (mBackMeansToAccountList && (mViewPager.getCurrentItem() == 1)) {
 546                 Data.accountFilter.setValue(null);
 547                 showAccountSummaryFragment();
 548                 mBackMeansToAccountList = false;
 549             }
 550             else {
 551                 debug("fragments", String.format(Locale.ENGLISH, "manager stack: %d",
 552                         getSupportFragmentManager().getBackStackEntryCount()));
 553
 554                 super.onBackPressed();
 555             }
 556         }
 557     }
 558     public void updateLastUpdateTextFromDB() {
 559         if (profile == null)
 560             return;
 561
 562         long last_update = profile.getLongOption(MLDB.OPT_LAST_SCRAPE, 0L);
 563
 564         debug("transactions", String.format(Locale.ENGLISH, "Last update = %d", last_update));
 565         if (last_update == 0) {
 566             Data.lastUpdateDate.postValue(null);
 567         }
 568         else {
 569             Data.lastUpdateDate.postValue(new Date(last_update));
 570         }
 571     }
 572     public void onStopTransactionRefreshClick(View view) {
 573         debug("interactive", "Cancelling transactions refresh");
 574         Data.stopTransactionsRetrieval();
 575         bTransactionListCancelDownload.setEnabled(false);
 576     }
 577     public void onRetrieveRunningChanged(Boolean running) {
 578         final View progressLayout = findViewById(R.id.transaction_progress_layout);
 579         if (running) {
 580             ProgressBar progressBar = findViewById(R.id.transaction_list_progress_bar);
 581             bTransactionListCancelDownload.setEnabled(true);
 582             ColorStateList csl = Colors.getColorStateList();
 583             progressBar.setIndeterminateTintList(csl);
 584             progressBar.setProgressTintList(csl);
 585             progressBar.setIndeterminate(true);
 586             if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
 587                 progressBar.setProgress(0, false);
 588             }
 589             else {
 590                 progressBar.setProgress(0);
 591             }
 592             progressLayout.setVisibility(View.VISIBLE);
 593         }
 594         else {
 595             progressLayout.setVisibility(View.GONE);
 596         }
 597     }
 598     public void onRetrieveProgress(RetrieveTransactionsTask.Progress progress) {
 599         ProgressBar progressBar = findViewById(R.id.transaction_list_progress_bar);
 600
 601         if (progress.getState() == RetrieveTransactionsTask.ProgressState.FINISHED) {
 602             Logger.debug("progress", "Done");
 603             findViewById(R.id.transaction_progress_layout).setVisibility(View.GONE);
 604
 605             Data.transactionRetrievalDone();
 606
 607             if (progress.getError() != null) {
 608                 Snackbar.make(mViewPager, progress.getError(), Snackbar.LENGTH_LONG)
 609                         .show();
 610                 return;
 611             }
 612
 613             updateLastUpdateTextFromDB();
 614
 615             new RefreshDescriptionsTask().executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR);
 616             TransactionListViewModel.scheduleTransactionListReload();
 617
 618             return;
 619         }
 620
 621
 622         bTransactionListCancelDownload.setEnabled(true);
 623 //        ColorStateList csl = Colors.getColorStateList();
 624 //        progressBar.setIndeterminateTintList(csl);
 625 //        progressBar.setProgressTintList(csl);
 626 //        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N)
 627 //            progressBar.setProgress(0, false);
 628 //        else
 629 //            progressBar.setProgress(0);
 630         findViewById(R.id.transaction_progress_layout).setVisibility(View.VISIBLE);
 631
 632         if (progress.isIndeterminate() || (progress.getTotal() <= 0)) {
 633             progressBar.setIndeterminate(true);
 634             Logger.debug("progress", "indeterminate");
 635         }
 636         else {
 637             if (progressBar.isIndeterminate()) {
 638                 progressBar.setIndeterminate(false);
 639             }
 640             Logger.debug("progress",
 641                     String.format(Locale.US, "%d/%d", progress.getProgress(), progress.getTotal()));
 642             progressBar.setMax(progress.getTotal());
 643             // for some reason animation doesn't work - no progress is shown (stick at 0)
 644             // on lineageOS 14.1 (Nougat, 7.1.2)
 645             if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N)
 646                 progressBar.setProgress(progress.getProgress(), false);
 647             else
 648                 progressBar.setProgress(progress.getProgress());
 649         }
 650     }
 651     public void fabShouldShow() {
 652         if ((profile != null) && profile.isPostingPermitted() && !drawer.isOpen())
 653             fab.show();
 654         else
 655             fabHide();
 656     }
 657     public void fabHide() {
 658         fab.hide();
 659     }
 660
 661     public static class SectionsPagerAdapter extends FragmentPagerAdapter {
 662
 663         SectionsPagerAdapter(FragmentManager fm) {
 664             super(fm, BEHAVIOR_RESUME_ONLY_CURRENT_FRAGMENT);
 665         }
 666
 667         @NotNull
 668         @Override
 669         public Fragment getItem(int position) {
 670             debug("main", String.format(Locale.ENGLISH, "Switching to fragment %d", position));
 671             switch (position) {
 672                 case 0:
 673 //                    debug("flow", "Creating account summary fragment");
 674                     return new AccountSummaryFragment();
 675                 case 1:
 676                     return new TransactionListFragment();
 677                 default:
 678                     throw new IllegalStateException(
 679                             String.format("Unexpected fragment index: " + "%d", position));
 680             }
 681         }
 682
 683         @Override
 684         public int getCount() {
 685             return 2;
 686         }
 687     }
 688 }