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.Build;
  29 import android.os.Bundle;
  30 import android.text.format.DateUtils;
  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.lifecycle.ViewModelProvider;
  47 import androidx.recyclerview.widget.LinearLayoutManager;
  48 import androidx.recyclerview.widget.RecyclerView;
  49 import androidx.viewpager.widget.ViewPager;
  50
  51 import com.google.android.material.floatingactionbutton.FloatingActionButton;
  52 import com.google.android.material.snackbar.Snackbar;
  53
  54 import net.ktnx.mobileledger.R;
  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.MainModel;
  59 import net.ktnx.mobileledger.ui.account_summary.AccountSummaryFragment;
  60 import net.ktnx.mobileledger.ui.profiles.ProfileDetailFragment;
  61 import net.ktnx.mobileledger.ui.profiles.ProfilesRecyclerViewAdapter;
  62 import net.ktnx.mobileledger.ui.transaction_list.TransactionListFragment;
  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.util.ArrayList;
  70 import java.util.Date;
  71 import java.util.List;
  72 import java.util.Locale;
  73 import java.util.Objects;
  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     private MainModel mainModel;
  99     @Override
 100     protected void onStart() {
 101         super.onStart();
 102
 103         Logger.debug("MainActivity", "onStart()");
 104
 105         mViewPager.setCurrentItem(mCurrentPage, false);
 106     }
 107     @Override
 108     protected void onSaveInstanceState(@NotNull Bundle outState) {
 109         super.onSaveInstanceState(outState);
 110         outState.putInt(STATE_CURRENT_PAGE, mViewPager.getCurrentItem());
 111         if (mainModel.getAccountFilter()
 112                      .getValue() != null)
 113             outState.putString(STATE_ACC_FILTER, mainModel.getAccountFilter()
 114                                                           .getValue());
 115     }
 116     @Override
 117     protected void onDestroy() {
 118         mSectionsPagerAdapter = null;
 119         RecyclerView root = findViewById(R.id.nav_profile_list);
 120         if (root != null)
 121             root.setAdapter(null);
 122         if (drawer != null)
 123             drawer.removeDrawerListener(drawerListener);
 124         drawerListener = null;
 125         if (drawer != null)
 126             drawer.removeDrawerListener(barDrawerToggle);
 127         barDrawerToggle = null;
 128         if (mViewPager != null)
 129             mViewPager.removeOnPageChangeListener(pageChangeListener);
 130         pageChangeListener = null;
 131         super.onDestroy();
 132     }
 133     @Override
 134     protected void setupProfileColors() {
 135         SharedPreferences prefs = getPreferences(MODE_PRIVATE);
 136         int profileColor = prefs.getInt(PREF_THEME_ID, -2);
 137         if (profileColor == -2)
 138             profileColor = Data.retrieveCurrentThemeIdFromDb();
 139         Colors.setupTheme(this, profileColor);
 140         Colors.profileThemeId = profileColor;
 141         storeThemeIdInPrefs(profileColor);
 142     }
 143     @Override
 144     protected void onResume() {
 145         super.onResume();
 146         fabShouldShow();
 147     }
 148     @Override
 149     protected void onCreate(Bundle savedInstanceState) {
 150         Logger.debug("MainActivity", "onCreate()/entry");
 151         super.onCreate(savedInstanceState);
 152         Logger.debug("MainActivity", "onCreate()/after super");
 153         setContentView(R.layout.activity_main);
 154
 155         mainModel = new ViewModelProvider(this).get(MainModel.class);
 156
 157         fab = findViewById(R.id.btn_add_transaction);
 158         profileListHeadMore = findViewById(R.id.nav_profiles_start_edit);
 159         profileListHeadCancel = findViewById(R.id.nav_profiles_cancel_edit);
 160         LinearLayout profileListHeadMoreAndCancel =
 161                 findViewById(R.id.nav_profile_list_head_buttons);
 162         profileListHeadAddProfile = findViewById(R.id.nav_new_profile_button);
 163         drawer = findViewById(R.id.drawer_layout);
 164         bTransactionListCancelDownload = findViewById(R.id.transaction_list_cancel_download);
 165         mSectionsPagerAdapter = new SectionsPagerAdapter(getSupportFragmentManager());
 166         mViewPager = findViewById(R.id.root_frame);
 167
 168         Bundle extra = getIntent().getBundleExtra(BUNDLE_SAVED_STATE);
 169         if (extra != null && savedInstanceState == null)
 170             savedInstanceState = extra;
 171
 172
 173         mToolbar = findViewById(R.id.toolbar);
 174         setSupportActionBar(mToolbar);
 175
 176         Data.observeProfile(this, this::onProfileChanged);
 177
 178         Data.profiles.observe(this, this::onProfileListChanged);
 179         Data.backgroundTaskProgress.observe(this, this::onRetrieveProgress);
 180         Data.backgroundTasksRunning.observe(this, this::onRetrieveRunningChanged);
 181
 182         if (barDrawerToggle == null) {
 183             barDrawerToggle = new ActionBarDrawerToggle(this, drawer, mToolbar,
 184                     R.string.navigation_drawer_open, R.string.navigation_drawer_close);
 185             drawer.addDrawerListener(barDrawerToggle);
 186         }
 187         barDrawerToggle.syncState();
 188
 189         try {
 190             PackageInfo pi = getApplicationContext().getPackageManager()
 191                                                     .getPackageInfo(getPackageName(), 0);
 192             ((TextView) findViewById(R.id.nav_upper).findViewById(
 193                     R.id.drawer_version_text)).setText(pi.versionName);
 194             ((TextView) findViewById(R.id.no_profiles_layout).findViewById(
 195                     R.id.drawer_version_text)).setText(pi.versionName);
 196         }
 197         catch (Exception e) {
 198             e.printStackTrace();
 199         }
 200
 201         markDrawerItemCurrent(R.id.nav_account_summary);
 202
 203         mViewPager.setAdapter(mSectionsPagerAdapter);
 204
 205         if (pageChangeListener == null) {
 206             pageChangeListener = new ViewPager.SimpleOnPageChangeListener() {
 207                 @Override
 208                 public void onPageSelected(int position) {
 209                     mCurrentPage = position;
 210                     switch (position) {
 211                         case 0:
 212                             markDrawerItemCurrent(R.id.nav_account_summary);
 213                             break;
 214                         case 1:
 215                             markDrawerItemCurrent(R.id.nav_latest_transactions);
 216                             break;
 217                         default:
 218                             Log.e("MainActivity",
 219                                     String.format("Unexpected page index %d", position));
 220                     }
 221
 222                     super.onPageSelected(position);
 223                 }
 224             };
 225             mViewPager.addOnPageChangeListener(pageChangeListener);
 226         }
 227
 228         mCurrentPage = 0;
 229         if (savedInstanceState != null) {
 230             int currentPage = savedInstanceState.getInt(STATE_CURRENT_PAGE, -1);
 231             if (currentPage != -1) {
 232                 mCurrentPage = currentPage;
 233             }
 234             mainModel.getAccountFilter()
 235                      .setValue(savedInstanceState.getString(STATE_ACC_FILTER, null));
 236         }
 237
 238         findViewById(R.id.btn_no_profiles_add).setOnClickListener(
 239                 v -> startEditProfileActivity(null));
 240
 241         findViewById(R.id.btn_add_transaction).setOnClickListener(this::fabNewTransactionClicked);
 242
 243         findViewById(R.id.nav_new_profile_button).setOnClickListener(
 244                 v -> startEditProfileActivity(null));
 245
 246         RecyclerView root = findViewById(R.id.nav_profile_list);
 247         if (root == null)
 248             throw new RuntimeException("Can't get hold on the transaction value view");
 249
 250         if (mProfileListAdapter == null)
 251             mProfileListAdapter = new ProfilesRecyclerViewAdapter();
 252         root.setAdapter(mProfileListAdapter);
 253
 254         mProfileListAdapter.editingProfiles.observe(this, newValue -> {
 255             if (newValue) {
 256                 profileListHeadMore.setVisibility(View.GONE);
 257                 profileListHeadCancel.setVisibility(View.VISIBLE);
 258                 profileListHeadAddProfile.setVisibility(View.VISIBLE);
 259                 if (drawer.isDrawerOpen(GravityCompat.START)) {
 260                     profileListHeadMore.startAnimation(
 261                             AnimationUtils.loadAnimation(MainActivity.this, R.anim.fade_out));
 262                     profileListHeadCancel.startAnimation(
 263                             AnimationUtils.loadAnimation(MainActivity.this, R.anim.fade_in));
 264                     profileListHeadAddProfile.startAnimation(
 265                             AnimationUtils.loadAnimation(MainActivity.this, R.anim.fade_in));
 266                 }
 267             }
 268             else {
 269                 profileListHeadCancel.setVisibility(View.GONE);
 270                 profileListHeadMore.setVisibility(View.VISIBLE);
 271                 profileListHeadAddProfile.setVisibility(View.GONE);
 272                 if (drawer.isDrawerOpen(GravityCompat.START)) {
 273                     profileListHeadCancel.startAnimation(
 274                             AnimationUtils.loadAnimation(MainActivity.this, R.anim.fade_out));
 275                     profileListHeadMore.startAnimation(
 276                             AnimationUtils.loadAnimation(MainActivity.this, R.anim.fade_in));
 277                     profileListHeadAddProfile.startAnimation(
 278                             AnimationUtils.loadAnimation(MainActivity.this, R.anim.fade_out));
 279                 }
 280             }
 281
 282             mProfileListAdapter.notifyDataSetChanged();
 283         });
 284
 285         LinearLayoutManager llm = new LinearLayoutManager(this);
 286
 287         llm.setOrientation(RecyclerView.VERTICAL);
 288         root.setLayoutManager(llm);
 289
 290         profileListHeadMore.setOnClickListener((v) -> mProfileListAdapter.flipEditingProfiles());
 291         profileListHeadCancel.setOnClickListener((v) -> mProfileListAdapter.flipEditingProfiles());
 292         profileListHeadMoreAndCancel.setOnClickListener(
 293                 (v) -> mProfileListAdapter.flipEditingProfiles());
 294         if (drawerListener == null) {
 295             drawerListener = new DrawerLayout.SimpleDrawerListener() {
 296                 @Override
 297                 public void onDrawerSlide(@NonNull View drawerView, float slideOffset) {
 298                     if (slideOffset > 0.2)
 299                         fabHide();
 300                 }
 301                 @Override
 302                 public void onDrawerClosed(View drawerView) {
 303                     super.onDrawerClosed(drawerView);
 304                     mProfileListAdapter.setAnimationsEnabled(false);
 305                     mProfileListAdapter.editingProfiles.setValue(false);
 306                     Data.drawerOpen.setValue(false);
 307                     fabShouldShow();
 308                 }
 309                 @Override
 310                 public void onDrawerOpened(View drawerView) {
 311                     super.onDrawerOpened(drawerView);
 312                     mProfileListAdapter.setAnimationsEnabled(true);
 313                     Data.drawerOpen.setValue(true);
 314                     fabHide();
 315                 }
 316             };
 317             drawer.addDrawerListener(drawerListener);
 318         }
 319
 320         Data.drawerOpen.observe(this, open -> {
 321             if (open)
 322                 drawer.open();
 323             else
 324                 drawer.close();
 325         });
 326
 327         mainModel.getUpdateError()
 328                  .observe(this, (error) -> {
 329                      if (error == null)
 330                          return;
 331
 332                      Snackbar.make(mViewPager, error, Snackbar.LENGTH_LONG)
 333                              .show();
 334                      mainModel.clearUpdateError();
 335                  });
 336         Data.locale.observe(this, l -> refreshLastUpdateInfo());
 337         Data.lastUpdateDate.observe(this, date -> refreshLastUpdateInfo());
 338         Data.lastUpdateTransactionCount.observe(this, date -> refreshLastUpdateInfo());
 339         Data.lastUpdateAccountCount.observe(this, date -> refreshLastUpdateInfo());
 340     }
 341     private void scheduleDataRetrievalIfStale(long lastUpdate) {
 342         long now = new Date().getTime();
 343         if ((lastUpdate == 0) || (now > (lastUpdate + (24 * 3600 * 1000)))) {
 344             if (lastUpdate == 0)
 345                 Logger.debug("db::", "WEB data never fetched. scheduling a fetch");
 346             else
 347                 Logger.debug("db", String.format(Locale.ENGLISH,
 348                         "WEB data last fetched at %1.3f and now is %1.3f. re-fetching",
 349                         lastUpdate / 1000f, now / 1000f));
 350
 351             mainModel.scheduleTransactionListRetrieval();
 352         }
 353     }
 354     private void createShortcuts(List<MobileLedgerProfile> list) {
 355         if (Build.VERSION.SDK_INT < Build.VERSION_CODES.N_MR1)
 356             return;
 357
 358         ShortcutManager sm = getSystemService(ShortcutManager.class);
 359         List<ShortcutInfo> shortcuts = new ArrayList<>();
 360         int i = 0;
 361         for (MobileLedgerProfile p : list) {
 362             if (shortcuts.size() >= sm.getMaxShortcutCountPerActivity())
 363                 break;
 364
 365             if (!p.isPostingPermitted())
 366                 continue;
 367
 368             final ShortcutInfo.Builder builder =
 369                     new ShortcutInfo.Builder(this, "new_transaction_" + p.getUuid());
 370             ShortcutInfo si = builder.setShortLabel(p.getName())
 371                                      .setIcon(Icon.createWithResource(this,
 372                                              R.drawable.thick_plus_icon))
 373                                      .setIntent(new Intent(Intent.ACTION_VIEW, null, this,
 374                                              NewTransactionActivity.class).putExtra("profile_uuid",
 375                                              p.getUuid()))
 376                                      .setRank(i)
 377                                      .build();
 378             shortcuts.add(si);
 379             i++;
 380         }
 381         sm.setDynamicShortcuts(shortcuts);
 382     }
 383     private void onProfileListChanged(List<MobileLedgerProfile> newList) {
 384         if ((newList == null) || newList.isEmpty()) {
 385             findViewById(R.id.no_profiles_layout).setVisibility(View.VISIBLE);
 386             findViewById(R.id.main_app_layout).setVisibility(View.GONE);
 387             return;
 388         }
 389
 390         findViewById(R.id.main_app_layout).setVisibility(View.VISIBLE);
 391         findViewById(R.id.no_profiles_layout).setVisibility(View.GONE);
 392
 393         findViewById(R.id.nav_profile_list).setMinimumHeight(
 394                 (int) (getResources().getDimension(R.dimen.thumb_row_height) * newList.size()));
 395
 396         Logger.debug("profiles", "profile list changed");
 397         mProfileListAdapter.notifyDataSetChanged();
 398
 399         createShortcuts(newList);
 400     }
 401     /**
 402      * called when the current profile has changed
 403      */
 404     private void onProfileChanged(MobileLedgerProfile profile) {
 405         if (this.profile == null) {
 406             if (profile == null)
 407                 return;
 408         }
 409         else {
 410             if (this.profile.equals(profile))
 411                 return;
 412         }
 413
 414         boolean haveProfile = profile != null;
 415
 416         if (haveProfile)
 417             setTitle(profile.getName());
 418         else
 419             setTitle(R.string.app_name);
 420
 421         mainModel.setProfile(profile);
 422
 423         this.profile = profile;
 424
 425         int newProfileTheme = haveProfile ? profile.getThemeHue() : -1;
 426         if (newProfileTheme != Colors.profileThemeId) {
 427             Logger.debug("profiles",
 428                     String.format(Locale.ENGLISH, "profile theme %d → %d", Colors.profileThemeId,
 429                             newProfileTheme));
 430             Colors.profileThemeId = newProfileTheme;
 431             profileThemeChanged();
 432             // profileThemeChanged would restart the activity, so no need to reload the
 433             // data sets below
 434             return;
 435         }
 436
 437         findViewById(R.id.no_profiles_layout).setVisibility(haveProfile ? View.GONE : View.VISIBLE);
 438         findViewById(R.id.pager_layout).setVisibility(haveProfile ? View.VISIBLE : View.VISIBLE);
 439
 440         mProfileListAdapter.notifyDataSetChanged();
 441
 442         mainModel.clearTransactions();
 443
 444         if (haveProfile) {
 445             mainModel.scheduleAccountListReload();
 446             Logger.debug("transactions", "requesting list reload");
 447             mainModel.scheduleTransactionListReload();
 448
 449             if (profile.isPostingPermitted()) {
 450                 mToolbar.setSubtitle(null);
 451                 fab.show();
 452             }
 453             else {
 454                 mToolbar.setSubtitle(R.string.profile_subtitle_read_only);
 455                 fab.hide();
 456             }
 457         }
 458         else {
 459             mToolbar.setSubtitle(null);
 460             fab.hide();
 461         }
 462
 463         updateLastUpdateTextFromDB();
 464     }
 465     private void profileThemeChanged() {
 466         storeThemeIdInPrefs(profile.getThemeHue());
 467
 468         // un-hook all observed LiveData
 469         Data.removeProfileObservers(this);
 470         Data.profiles.removeObservers(this);
 471         Data.lastUpdateTransactionCount.removeObservers(this);
 472         Data.lastUpdateAccountCount.removeObservers(this);
 473         Data.lastUpdateDate.removeObservers(this);
 474
 475         recreate();
 476     }
 477     private void storeThemeIdInPrefs(int themeId) {
 478         // store the new theme id in the preferences
 479         SharedPreferences prefs = getPreferences(MODE_PRIVATE);
 480         SharedPreferences.Editor e = prefs.edit();
 481         e.putInt(PREF_THEME_ID, themeId);
 482         e.apply();
 483     }
 484     public void startEditProfileActivity(MobileLedgerProfile profile) {
 485         Intent intent = new Intent(this, ProfileDetailActivity.class);
 486         Bundle args = new Bundle();
 487         if (profile != null) {
 488             int index = Data.getProfileIndex(profile);
 489             if (index != -1)
 490                 intent.putExtra(ProfileDetailFragment.ARG_ITEM_ID, index);
 491         }
 492         intent.putExtras(args);
 493         startActivity(intent, args);
 494     }
 495     public void fabNewTransactionClicked(View view) {
 496         Intent intent = new Intent(this, NewTransactionActivity.class);
 497         startActivity(intent);
 498         overridePendingTransition(R.anim.slide_in_up, R.anim.dummy);
 499     }
 500     public void markDrawerItemCurrent(int id) {
 501         TextView item = drawer.findViewById(id);
 502         item.setBackgroundColor(Colors.tableRowDarkBG);
 503
 504         LinearLayout actions = drawer.findViewById(R.id.nav_actions);
 505         for (int i = 0; i < actions.getChildCount(); i++) {
 506             View view = actions.getChildAt(i);
 507             if (view.getId() != id) {
 508                 view.setBackgroundColor(Color.TRANSPARENT);
 509             }
 510         }
 511     }
 512     public void onAccountSummaryClicked(View view) {
 513         drawer.closeDrawers();
 514
 515         showAccountSummaryFragment();
 516     }
 517     private void showAccountSummaryFragment() {
 518         mViewPager.setCurrentItem(0, true);
 519         mainModel.getAccountFilter()
 520                  .setValue(null);
 521     }
 522     public void onLatestTransactionsClicked(View view) {
 523         drawer.closeDrawers();
 524
 525         showTransactionsFragment(null);
 526     }
 527     public void showTransactionsFragment(String accName) {
 528         mainModel.getAccountFilter()
 529                  .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                 mainModel.getAccountFilter()
 545                          .setValue(null);
 546                 showAccountSummaryFragment();
 547                 mBackMeansToAccountList = false;
 548             }
 549             else {
 550                 Logger.debug("fragments", String.format(Locale.ENGLISH, "manager stack: %d",
 551                         getSupportFragmentManager().getBackStackEntryCount()));
 552
 553                 super.onBackPressed();
 554             }
 555         }
 556     }
 557     public void updateLastUpdateTextFromDB() {
 558         if (profile == null)
 559             return;
 560
 561         long lastUpdate = profile.getLongOption(MLDB.OPT_LAST_SCRAPE, 0L);
 562
 563         Logger.debug("transactions", String.format(Locale.ENGLISH, "Last update = %d", lastUpdate));
 564         if (lastUpdate == 0) {
 565             Data.lastUpdateDate.postValue(null);
 566         }
 567         else {
 568             Data.lastUpdateDate.postValue(new Date(lastUpdate));
 569         }
 570
 571         scheduleDataRetrievalIfStale(lastUpdate);
 572
 573     }
 574     private void refreshLastUpdateInfo() {
 575         final int formatFlags = DateUtils.FORMAT_SHOW_DATE | DateUtils.FORMAT_SHOW_YEAR |
 576                                 DateUtils.FORMAT_SHOW_TIME | DateUtils.FORMAT_NUMERIC_DATE;
 577         String templateForTransactions =
 578                 getResources().getString(R.string.transaction_count_summary);
 579         String templateForAccounts = getResources().getString(R.string.account_count_summary);
 580         Integer accountCount = Data.lastUpdateAccountCount.getValue();
 581         Integer transactionCount = Data.lastUpdateTransactionCount.getValue();
 582         Date lastUpdate = Data.lastUpdateDate.getValue();
 583         if (lastUpdate == null) {
 584             Data.lastTransactionsUpdateText.set("----");
 585             Data.lastAccountsUpdateText.set("----");
 586         }
 587         else {
 588             Data.lastTransactionsUpdateText.set(
 589                     String.format(Objects.requireNonNull(Data.locale.getValue()),
 590                             templateForTransactions,
 591                             transactionCount == null ? 0 : transactionCount,
 592                             DateUtils.formatDateTime(this, lastUpdate.getTime(), formatFlags)));
 593             Data.lastAccountsUpdateText.set(
 594                     String.format(Objects.requireNonNull(Data.locale.getValue()),
 595                             templateForAccounts, accountCount == null ? 0 : accountCount,
 596                             DateUtils.formatDateTime(this, lastUpdate.getTime(), formatFlags)));
 597         }
 598     }
 599     public void onStopTransactionRefreshClick(View view) {
 600         Logger.debug("interactive", "Cancelling transactions refresh");
 601         mainModel.stopTransactionsRetrieval();
 602         bTransactionListCancelDownload.setEnabled(false);
 603     }
 604     public void onRetrieveRunningChanged(Boolean running) {
 605         final View progressLayout = findViewById(R.id.transaction_progress_layout);
 606         if (running) {
 607             ProgressBar progressBar = findViewById(R.id.transaction_list_progress_bar);
 608             bTransactionListCancelDownload.setEnabled(true);
 609             ColorStateList csl = Colors.getColorStateList();
 610             progressBar.setIndeterminateTintList(csl);
 611             progressBar.setProgressTintList(csl);
 612             progressBar.setIndeterminate(true);
 613             if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
 614                 progressBar.setProgress(0, false);
 615             }
 616             else {
 617                 progressBar.setProgress(0);
 618             }
 619             progressLayout.setVisibility(View.VISIBLE);
 620         }
 621         else {
 622             progressLayout.setVisibility(View.GONE);
 623         }
 624     }
 625     public void onRetrieveProgress(RetrieveTransactionsTask.Progress progress) {
 626         ProgressBar progressBar = findViewById(R.id.transaction_list_progress_bar);
 627
 628         if (progress.getState() == RetrieveTransactionsTask.ProgressState.FINISHED) {
 629             Logger.debug("progress", "Done");
 630             findViewById(R.id.transaction_progress_layout).setVisibility(View.GONE);
 631
 632             mainModel.transactionRetrievalDone();
 633
 634             if (progress.getError() != null) {
 635                 Snackbar.make(mViewPager, progress.getError(), Snackbar.LENGTH_LONG)
 636                         .show();
 637                 return;
 638             }
 639
 640             return;
 641         }
 642
 643
 644         bTransactionListCancelDownload.setEnabled(true);
 645 //        ColorStateList csl = Colors.getColorStateList();
 646 //        progressBar.setIndeterminateTintList(csl);
 647 //        progressBar.setProgressTintList(csl);
 648 //        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N)
 649 //            progressBar.setProgress(0, false);
 650 //        else
 651 //            progressBar.setProgress(0);
 652         findViewById(R.id.transaction_progress_layout).setVisibility(View.VISIBLE);
 653
 654         if (progress.isIndeterminate() || (progress.getTotal() <= 0)) {
 655             progressBar.setIndeterminate(true);
 656             Logger.debug("progress", "indeterminate");
 657         }
 658         else {
 659             if (progressBar.isIndeterminate()) {
 660                 progressBar.setIndeterminate(false);
 661             }
 662 //            Logger.debug("progress",
 663 //                    String.format(Locale.US, "%d/%d", progress.getProgress(), progress.getTotal
 664 //                    ()));
 665             progressBar.setMax(progress.getTotal());
 666             // for some reason animation doesn't work - no progress is shown (stick at 0)
 667             // on lineageOS 14.1 (Nougat, 7.1.2)
 668             if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N)
 669                 progressBar.setProgress(progress.getProgress(), false);
 670             else
 671                 progressBar.setProgress(progress.getProgress());
 672         }
 673     }
 674     public void fabShouldShow() {
 675         if ((profile != null) && profile.isPostingPermitted() && !drawer.isOpen())
 676             fab.show();
 677         else
 678             fabHide();
 679     }
 680     public void fabHide() {
 681         fab.hide();
 682     }
 683
 684     public static class SectionsPagerAdapter extends FragmentPagerAdapter {
 685
 686         SectionsPagerAdapter(FragmentManager fm) {
 687             super(fm, BEHAVIOR_RESUME_ONLY_CURRENT_FRAGMENT);
 688         }
 689
 690         @NotNull
 691         @Override
 692         public Fragment getItem(int position) {
 693             Logger.debug("main",
 694                     String.format(Locale.ENGLISH, "Switching to fragment %d", position));
 695             switch (position) {
 696                 case 0:
 697 //                    debug("flow", "Creating account summary fragment");
 698                     return new AccountSummaryFragment();
 699                 case 1:
 700                     return new TransactionListFragment();
 701                 default:
 702                     throw new IllegalStateException(
 703                             String.format("Unexpected fragment index: " + "%d", position));
 704             }
 705         }
 706
 707         @Override
 708         public int getCount() {
 709             return 2;
 710         }
 711     }
 712 }