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     }
 340     private void scheduleDataRetrievalIfStale(long lastUpdate) {
 341         long now = new Date().getTime();
 342         if ((lastUpdate == 0) || (now > (lastUpdate + (24 * 3600 * 1000)))) {
 343             if (lastUpdate == 0)
 344                 Logger.debug("db::", "WEB data never fetched. scheduling a fetch");
 345             else
 346                 Logger.debug("db", String.format(Locale.ENGLISH,
 347                         "WEB data last fetched at %1.3f and now is %1.3f. re-fetching",
 348                         lastUpdate / 1000f, now / 1000f));
 349
 350             mainModel.scheduleTransactionListRetrieval();
 351         }
 352     }
 353     private void createShortcuts(List<MobileLedgerProfile> list) {
 354         if (Build.VERSION.SDK_INT < Build.VERSION_CODES.N_MR1)
 355             return;
 356
 357         ShortcutManager sm = getSystemService(ShortcutManager.class);
 358         List<ShortcutInfo> shortcuts = new ArrayList<>();
 359         int i = 0;
 360         for (MobileLedgerProfile p : list) {
 361             if (shortcuts.size() >= sm.getMaxShortcutCountPerActivity())
 362                 break;
 363
 364             if (!p.isPostingPermitted())
 365                 continue;
 366
 367             final ShortcutInfo.Builder builder =
 368                     new ShortcutInfo.Builder(this, "new_transaction_" + p.getUuid());
 369             ShortcutInfo si = builder.setShortLabel(p.getName())
 370                                      .setIcon(Icon.createWithResource(this,
 371                                              R.drawable.thick_plus_icon))
 372                                      .setIntent(new Intent(Intent.ACTION_VIEW, null, this,
 373                                              NewTransactionActivity.class).putExtra("profile_uuid",
 374                                              p.getUuid()))
 375                                      .setRank(i)
 376                                      .build();
 377             shortcuts.add(si);
 378             i++;
 379         }
 380         sm.setDynamicShortcuts(shortcuts);
 381     }
 382     private void onProfileListChanged(List<MobileLedgerProfile> newList) {
 383         if ((newList == null) || newList.isEmpty()) {
 384             findViewById(R.id.no_profiles_layout).setVisibility(View.VISIBLE);
 385             findViewById(R.id.main_app_layout).setVisibility(View.GONE);
 386             return;
 387         }
 388
 389         findViewById(R.id.main_app_layout).setVisibility(View.VISIBLE);
 390         findViewById(R.id.no_profiles_layout).setVisibility(View.GONE);
 391
 392         findViewById(R.id.nav_profile_list).setMinimumHeight(
 393                 (int) (getResources().getDimension(R.dimen.thumb_row_height) * newList.size()));
 394
 395         Logger.debug("profiles", "profile list changed");
 396         mProfileListAdapter.notifyDataSetChanged();
 397
 398         createShortcuts(newList);
 399     }
 400     /**
 401      * called when the current profile has changed
 402      */
 403     private void onProfileChanged(MobileLedgerProfile profile) {
 404         if (this.profile == null) {
 405             if (profile == null)
 406                 return;
 407         }
 408         else {
 409             if (this.profile.equals(profile))
 410                 return;
 411         }
 412
 413         boolean haveProfile = profile != null;
 414
 415         if (haveProfile)
 416             setTitle(profile.getName());
 417         else
 418             setTitle(R.string.app_name);
 419
 420         mainModel.setProfile(profile);
 421
 422         this.profile = profile;
 423
 424         int newProfileTheme = haveProfile ? profile.getThemeHue() : -1;
 425         if (newProfileTheme != Colors.profileThemeId) {
 426             Logger.debug("profiles",
 427                     String.format(Locale.ENGLISH, "profile theme %d → %d", Colors.profileThemeId,
 428                             newProfileTheme));
 429             Colors.profileThemeId = newProfileTheme;
 430             profileThemeChanged();
 431             // profileThemeChanged would restart the activity, so no need to reload the
 432             // data sets below
 433             return;
 434         }
 435
 436         findViewById(R.id.no_profiles_layout).setVisibility(haveProfile ? View.GONE : View.VISIBLE);
 437         findViewById(R.id.pager_layout).setVisibility(haveProfile ? View.VISIBLE : View.VISIBLE);
 438
 439         mProfileListAdapter.notifyDataSetChanged();
 440
 441         mainModel.clearTransactions();
 442
 443         if (haveProfile) {
 444             mainModel.scheduleAccountListReload();
 445             Logger.debug("transactions", "requesting list reload");
 446             mainModel.scheduleTransactionListReload();
 447
 448             if (profile.isPostingPermitted()) {
 449                 mToolbar.setSubtitle(null);
 450                 fab.show();
 451             }
 452             else {
 453                 mToolbar.setSubtitle(R.string.profile_subtitle_read_only);
 454                 fab.hide();
 455             }
 456         }
 457         else {
 458             mToolbar.setSubtitle(null);
 459             fab.hide();
 460         }
 461
 462         updateLastUpdateTextFromDB();
 463     }
 464     private void profileThemeChanged() {
 465         storeThemeIdInPrefs(profile.getThemeHue());
 466
 467         // un-hook all observed LiveData
 468         Data.removeProfileObservers(this);
 469         Data.profiles.removeObservers(this);
 470         Data.lastUpdateTransactionCount.removeObservers(this);
 471         Data.lastUpdateDate.removeObservers(this);
 472
 473         recreate();
 474     }
 475     private void storeThemeIdInPrefs(int themeId) {
 476         // store the new theme id in the preferences
 477         SharedPreferences prefs = getPreferences(MODE_PRIVATE);
 478         SharedPreferences.Editor e = prefs.edit();
 479         e.putInt(PREF_THEME_ID, themeId);
 480         e.apply();
 481     }
 482     public void startEditProfileActivity(MobileLedgerProfile profile) {
 483         Intent intent = new Intent(this, ProfileDetailActivity.class);
 484         Bundle args = new Bundle();
 485         if (profile != null) {
 486             int index = Data.getProfileIndex(profile);
 487             if (index != -1)
 488                 intent.putExtra(ProfileDetailFragment.ARG_ITEM_ID, index);
 489         }
 490         intent.putExtras(args);
 491         startActivity(intent, args);
 492     }
 493     public void fabNewTransactionClicked(View view) {
 494         Intent intent = new Intent(this, NewTransactionActivity.class);
 495         startActivity(intent);
 496         overridePendingTransition(R.anim.slide_in_up, R.anim.dummy);
 497     }
 498     public void markDrawerItemCurrent(int id) {
 499         TextView item = drawer.findViewById(id);
 500         item.setBackgroundColor(Colors.tableRowDarkBG);
 501
 502         LinearLayout actions = drawer.findViewById(R.id.nav_actions);
 503         for (int i = 0; i < actions.getChildCount(); i++) {
 504             View view = actions.getChildAt(i);
 505             if (view.getId() != id) {
 506                 view.setBackgroundColor(Color.TRANSPARENT);
 507             }
 508         }
 509     }
 510     public void onAccountSummaryClicked(View view) {
 511         drawer.closeDrawers();
 512
 513         showAccountSummaryFragment();
 514     }
 515     private void showAccountSummaryFragment() {
 516         mViewPager.setCurrentItem(0, true);
 517         mainModel.getAccountFilter()
 518                  .setValue(null);
 519     }
 520     public void onLatestTransactionsClicked(View view) {
 521         drawer.closeDrawers();
 522
 523         showTransactionsFragment(null);
 524     }
 525     public void showTransactionsFragment(String accName) {
 526         mainModel.getAccountFilter()
 527                  .setValue(accName);
 528         mViewPager.setCurrentItem(1, true);
 529     }
 530     public void showAccountTransactions(String accountName) {
 531         mBackMeansToAccountList = true;
 532         showTransactionsFragment(accountName);
 533     }
 534     @Override
 535     public void onBackPressed() {
 536         DrawerLayout drawer = findViewById(R.id.drawer_layout);
 537         if (drawer.isDrawerOpen(GravityCompat.START)) {
 538             drawer.closeDrawer(GravityCompat.START);
 539         }
 540         else {
 541             if (mBackMeansToAccountList && (mViewPager.getCurrentItem() == 1)) {
 542                 mainModel.getAccountFilter()
 543                          .setValue(null);
 544                 showAccountSummaryFragment();
 545                 mBackMeansToAccountList = false;
 546             }
 547             else {
 548                 Logger.debug("fragments", String.format(Locale.ENGLISH, "manager stack: %d",
 549                         getSupportFragmentManager().getBackStackEntryCount()));
 550
 551                 super.onBackPressed();
 552             }
 553         }
 554     }
 555     public void updateLastUpdateTextFromDB() {
 556         if (profile == null)
 557             return;
 558
 559         long lastUpdate = profile.getLongOption(MLDB.OPT_LAST_SCRAPE, 0L);
 560
 561         Logger.debug("transactions", String.format(Locale.ENGLISH, "Last update = %d", lastUpdate));
 562         if (lastUpdate == 0) {
 563             Data.lastUpdateDate.postValue(null);
 564         }
 565         else {
 566             Data.lastUpdateDate.postValue(new Date(lastUpdate));
 567         }
 568
 569         scheduleDataRetrievalIfStale(lastUpdate);
 570
 571     }
 572     private void refreshLastUpdateInfo() {
 573         final int formatFlags = DateUtils.FORMAT_SHOW_DATE | DateUtils.FORMAT_SHOW_YEAR |
 574                                 DateUtils.FORMAT_SHOW_TIME | DateUtils.FORMAT_NUMERIC_DATE;
 575         String template = getResources().getString(R.string.transaction_count_summary);
 576         Integer transactionCount = Data.lastUpdateTransactionCount.getValue();
 577         Date lastUpdate = Data.lastUpdateDate.getValue();
 578         Data.lastUpdateText.set((lastUpdate == null) ? "----" : String.format(
 579                 Objects.requireNonNull(Data.locale.getValue()), template,
 580                 (transactionCount == null) ? 0 : transactionCount,
 581                 DateUtils.formatDateTime(this, lastUpdate.getTime(), formatFlags)));
 582     }
 583     public void onStopTransactionRefreshClick(View view) {
 584         Logger.debug("interactive", "Cancelling transactions refresh");
 585         mainModel.stopTransactionsRetrieval();
 586         bTransactionListCancelDownload.setEnabled(false);
 587     }
 588     public void onRetrieveRunningChanged(Boolean running) {
 589         final View progressLayout = findViewById(R.id.transaction_progress_layout);
 590         if (running) {
 591             ProgressBar progressBar = findViewById(R.id.transaction_list_progress_bar);
 592             bTransactionListCancelDownload.setEnabled(true);
 593             ColorStateList csl = Colors.getColorStateList();
 594             progressBar.setIndeterminateTintList(csl);
 595             progressBar.setProgressTintList(csl);
 596             progressBar.setIndeterminate(true);
 597             if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
 598                 progressBar.setProgress(0, false);
 599             }
 600             else {
 601                 progressBar.setProgress(0);
 602             }
 603             progressLayout.setVisibility(View.VISIBLE);
 604         }
 605         else {
 606             progressLayout.setVisibility(View.GONE);
 607         }
 608     }
 609     public void onRetrieveProgress(RetrieveTransactionsTask.Progress progress) {
 610         ProgressBar progressBar = findViewById(R.id.transaction_list_progress_bar);
 611
 612         if (progress.getState() == RetrieveTransactionsTask.ProgressState.FINISHED) {
 613             Logger.debug("progress", "Done");
 614             findViewById(R.id.transaction_progress_layout).setVisibility(View.GONE);
 615
 616             mainModel.transactionRetrievalDone();
 617
 618             if (progress.getError() != null) {
 619                 Snackbar.make(mViewPager, progress.getError(), Snackbar.LENGTH_LONG)
 620                         .show();
 621                 return;
 622             }
 623
 624             return;
 625         }
 626
 627
 628         bTransactionListCancelDownload.setEnabled(true);
 629 //        ColorStateList csl = Colors.getColorStateList();
 630 //        progressBar.setIndeterminateTintList(csl);
 631 //        progressBar.setProgressTintList(csl);
 632 //        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N)
 633 //            progressBar.setProgress(0, false);
 634 //        else
 635 //            progressBar.setProgress(0);
 636         findViewById(R.id.transaction_progress_layout).setVisibility(View.VISIBLE);
 637
 638         if (progress.isIndeterminate() || (progress.getTotal() <= 0)) {
 639             progressBar.setIndeterminate(true);
 640             Logger.debug("progress", "indeterminate");
 641         }
 642         else {
 643             if (progressBar.isIndeterminate()) {
 644                 progressBar.setIndeterminate(false);
 645             }
 646 //            Logger.debug("progress",
 647 //                    String.format(Locale.US, "%d/%d", progress.getProgress(), progress.getTotal
 648 //                    ()));
 649             progressBar.setMax(progress.getTotal());
 650             // for some reason animation doesn't work - no progress is shown (stick at 0)
 651             // on lineageOS 14.1 (Nougat, 7.1.2)
 652             if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N)
 653                 progressBar.setProgress(progress.getProgress(), false);
 654             else
 655                 progressBar.setProgress(progress.getProgress());
 656         }
 657     }
 658     public void fabShouldShow() {
 659         if ((profile != null) && profile.isPostingPermitted() && !drawer.isOpen())
 660             fab.show();
 661         else
 662             fabHide();
 663     }
 664     public void fabHide() {
 665         fab.hide();
 666     }
 667
 668     public static class SectionsPagerAdapter extends FragmentPagerAdapter {
 669
 670         SectionsPagerAdapter(FragmentManager fm) {
 671             super(fm, BEHAVIOR_RESUME_ONLY_CURRENT_FRAGMENT);
 672         }
 673
 674         @NotNull
 675         @Override
 676         public Fragment getItem(int position) {
 677             Logger.debug("main",
 678                     String.format(Locale.ENGLISH, "Switching to fragment %d", position));
 679             switch (position) {
 680                 case 0:
 681 //                    debug("flow", "Creating account summary fragment");
 682                     return new AccountSummaryFragment();
 683                 case 1:
 684                     return new TransactionListFragment();
 685                 default:
 686                     throw new IllegalStateException(
 687                             String.format("Unexpected fragment index: " + "%d", position));
 688             }
 689         }
 690
 691         @Override
 692         public int getCount() {
 693             return 2;
 694         }
 695     }
 696 }