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

   1 /*
   2  * Copyright © 2021 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.pm.PackageInfo;
  22 import android.content.pm.ShortcutInfo;
  23 import android.content.pm.ShortcutManager;
  24 import android.content.res.ColorStateList;
  25 import android.graphics.Color;
  26 import android.graphics.drawable.Icon;
  27 import android.os.Build;
  28 import android.os.Bundle;
  29 import android.text.format.DateUtils;
  30 import android.util.Log;
  31 import android.view.View;
  32 import android.view.animation.AnimationUtils;
  33 import android.widget.TextView;
  34
  35 import androidx.annotation.NonNull;
  36 import androidx.appcompat.app.ActionBarDrawerToggle;
  37 import androidx.appcompat.app.AlertDialog;
  38 import androidx.core.view.GravityCompat;
  39 import androidx.drawerlayout.widget.DrawerLayout;
  40 import androidx.fragment.app.Fragment;
  41 import androidx.fragment.app.FragmentActivity;
  42 import androidx.lifecycle.ViewModelProvider;
  43 import androidx.recyclerview.widget.LinearLayoutManager;
  44 import androidx.recyclerview.widget.RecyclerView;
  45 import androidx.viewpager2.adapter.FragmentStateAdapter;
  46 import androidx.viewpager2.widget.ViewPager2;
  47
  48 import com.google.android.material.snackbar.Snackbar;
  49
  50 import net.ktnx.mobileledger.R;
  51 import net.ktnx.mobileledger.async.RetrieveTransactionsTask;
  52 import net.ktnx.mobileledger.databinding.ActivityMainBinding;
  53 import net.ktnx.mobileledger.model.Data;
  54 import net.ktnx.mobileledger.model.MobileLedgerProfile;
  55 import net.ktnx.mobileledger.ui.MainModel;
  56 import net.ktnx.mobileledger.ui.account_summary.AccountSummaryFragment;
  57 import net.ktnx.mobileledger.ui.profiles.ProfilesRecyclerViewAdapter;
  58 import net.ktnx.mobileledger.ui.transaction_list.TransactionListFragment;
  59 import net.ktnx.mobileledger.utils.Colors;
  60 import net.ktnx.mobileledger.utils.Logger;
  61 import net.ktnx.mobileledger.utils.MLDB;
  62
  63 import org.jetbrains.annotations.NotNull;
  64
  65 import java.util.ArrayList;
  66 import java.util.Date;
  67 import java.util.List;
  68 import java.util.Locale;
  69 import java.util.Objects;
  70
  71 /*
  72  * TODO: reports
  73  *  */
  74
  75 public class MainActivity extends ProfileThemedActivity {
  76     public static final String STATE_CURRENT_PAGE = "current_page";
  77     public static final String BUNDLE_SAVED_STATE = "bundle_savedState";
  78     public static final String STATE_ACC_FILTER = "account_filter";
  79     private SectionsPagerAdapter mSectionsPagerAdapter;
  80     private ProfilesRecyclerViewAdapter mProfileListAdapter;
  81     private int mCurrentPage;
  82     private boolean mBackMeansToAccountList = false;
  83     private DrawerLayout.SimpleDrawerListener drawerListener;
  84     private ActionBarDrawerToggle barDrawerToggle;
  85     private ViewPager2.OnPageChangeCallback pageChangeCallback;
  86     private MobileLedgerProfile profile;
  87     private MainModel mainModel;
  88     private ActivityMainBinding b;
  89     @Override
  90     protected void onStart() {
  91         super.onStart();
  92
  93         Logger.debug("MainActivity", "onStart()");
  94
  95         b.mainPager.setCurrentItem(mCurrentPage, false);
  96     }
  97     @Override
  98     protected void onSaveInstanceState(@NotNull Bundle outState) {
  99         super.onSaveInstanceState(outState);
 100         outState.putInt(STATE_CURRENT_PAGE, b.mainPager.getCurrentItem());
 101         if (mainModel.getAccountFilter()
 102                      .getValue() != null)
 103             outState.putString(STATE_ACC_FILTER, mainModel.getAccountFilter()
 104                                                           .getValue());
 105     }
 106     @Override
 107     protected void onDestroy() {
 108         mSectionsPagerAdapter = null;
 109         b.navProfileList.setAdapter(null);
 110         b.drawerLayout.removeDrawerListener(drawerListener);
 111         drawerListener = null;
 112         b.drawerLayout.removeDrawerListener(barDrawerToggle);
 113         barDrawerToggle = null;
 114         b.mainPager.unregisterOnPageChangeCallback(pageChangeCallback);
 115         pageChangeCallback = null;
 116         super.onDestroy();
 117     }
 118     @Override
 119     protected void onResume() {
 120         super.onResume();
 121         fabShouldShow();
 122     }
 123     @Override
 124     protected void onCreate(Bundle savedInstanceState) {
 125         Logger.debug("MainActivity", "onCreate()/entry");
 126         super.onCreate(savedInstanceState);
 127         Logger.debug("MainActivity", "onCreate()/after super");
 128         b = ActivityMainBinding.inflate(getLayoutInflater());
 129         setContentView(b.getRoot());
 130
 131         mainModel = new ViewModelProvider(this).get(MainModel.class);
 132
 133         mSectionsPagerAdapter = new SectionsPagerAdapter(this);
 134
 135         Bundle extra = getIntent().getBundleExtra(BUNDLE_SAVED_STATE);
 136         if (extra != null && savedInstanceState == null)
 137             savedInstanceState = extra;
 138
 139
 140         setSupportActionBar(b.toolbar);
 141
 142         Data.observeProfile(this, this::onProfileChanged);
 143
 144         Data.profiles.observe(this, this::onProfileListChanged);
 145         Data.backgroundTaskProgress.observe(this, this::onRetrieveProgress);
 146         Data.backgroundTasksRunning.observe(this, this::onRetrieveRunningChanged);
 147
 148         if (barDrawerToggle == null) {
 149             barDrawerToggle = new ActionBarDrawerToggle(this, b.drawerLayout, b.toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close);
 150             b.drawerLayout.addDrawerListener(barDrawerToggle);
 151         }
 152         barDrawerToggle.syncState();
 153
 154         try {
 155             PackageInfo pi = getApplicationContext().getPackageManager()
 156                                                     .getPackageInfo(getPackageName(), 0);
 157             ((TextView) b.navUpper.findViewById(R.id.drawer_version_text)).setText(pi.versionName);
 158             ((TextView) b.noProfilesLayout.findViewById(R.id.drawer_version_text)).setText(pi.versionName);
 159         }
 160         catch (Exception e) {
 161             e.printStackTrace();
 162         }
 163
 164         markDrawerItemCurrent(R.id.nav_account_summary);
 165
 166         b.mainPager.setAdapter(mSectionsPagerAdapter);
 167
 168         if (pageChangeCallback == null) {
 169             pageChangeCallback = new ViewPager2.OnPageChangeCallback() {
 170                 @Override
 171                 public void onPageSelected(int position) {
 172                     mCurrentPage = position;
 173                     switch (position) {
 174                         case 0:
 175                             markDrawerItemCurrent(R.id.nav_account_summary);
 176                             break;
 177                         case 1:
 178                             markDrawerItemCurrent(R.id.nav_latest_transactions);
 179                             break;
 180                         default:
 181                             Log.e("MainActivity",
 182                                     String.format("Unexpected page index %d", position));
 183                     }
 184
 185                     super.onPageSelected(position);
 186                 }
 187             };
 188             b.mainPager.registerOnPageChangeCallback(pageChangeCallback);
 189         }
 190
 191         mCurrentPage = 0;
 192         if (savedInstanceState != null) {
 193             int currentPage = savedInstanceState.getInt(STATE_CURRENT_PAGE, -1);
 194             if (currentPage != -1) {
 195                 mCurrentPage = currentPage;
 196             }
 197             mainModel.getAccountFilter()
 198                      .setValue(savedInstanceState.getString(STATE_ACC_FILTER, null));
 199         }
 200
 201         b.btnNoProfilesAdd.setOnClickListener(v -> MobileLedgerProfile.startEditProfileActivity(this, null));
 202
 203         b.btnAddTransaction.setOnClickListener(this::fabNewTransactionClicked);
 204
 205         b.navNewProfileButton.setOnClickListener(v -> MobileLedgerProfile.startEditProfileActivity(this, null));
 206
 207         b.transactionListCancelDownload.setOnClickListener(this::onStopTransactionRefreshClick);
 208
 209         if (mProfileListAdapter == null)
 210             mProfileListAdapter = new ProfilesRecyclerViewAdapter();
 211         b.navProfileList.setAdapter(mProfileListAdapter);
 212
 213         mProfileListAdapter.editingProfiles.observe(this, newValue -> {
 214             if (newValue) {
 215                 b.navProfilesStartEdit.setVisibility(View.GONE);
 216                 b.navProfilesCancelEdit.setVisibility(View.VISIBLE);
 217                 b.navNewProfileButton.setVisibility(View.VISIBLE);
 218                 if (b.drawerLayout.isDrawerOpen(GravityCompat.START)) {
 219                     b.navProfilesStartEdit.startAnimation(
 220                             AnimationUtils.loadAnimation(MainActivity.this, R.anim.fade_out));
 221                     b.navProfilesCancelEdit.startAnimation(
 222                             AnimationUtils.loadAnimation(MainActivity.this, R.anim.fade_in));
 223                     b.navNewProfileButton.startAnimation(
 224                             AnimationUtils.loadAnimation(MainActivity.this, R.anim.fade_in));
 225                 }
 226             }
 227             else {
 228                 b.navProfilesCancelEdit.setVisibility(View.GONE);
 229                 b.navProfilesStartEdit.setVisibility(View.VISIBLE);
 230                 b.navNewProfileButton.setVisibility(View.GONE);
 231                 if (b.drawerLayout.isDrawerOpen(GravityCompat.START)) {
 232                     b.navProfilesCancelEdit.startAnimation(
 233                             AnimationUtils.loadAnimation(MainActivity.this, R.anim.fade_out));
 234                     b.navProfilesStartEdit.startAnimation(
 235                             AnimationUtils.loadAnimation(MainActivity.this, R.anim.fade_in));
 236                     b.navNewProfileButton.startAnimation(
 237                             AnimationUtils.loadAnimation(MainActivity.this, R.anim.fade_out));
 238                 }
 239             }
 240
 241             mProfileListAdapter.notifyDataSetChanged();
 242         });
 243
 244         LinearLayoutManager llm = new LinearLayoutManager(this);
 245
 246         llm.setOrientation(RecyclerView.VERTICAL);
 247         b.navProfileList.setLayoutManager(llm);
 248
 249         b.navProfilesStartEdit.setOnClickListener((v) -> mProfileListAdapter.flipEditingProfiles());
 250         b.navProfilesCancelEdit.setOnClickListener((v) -> mProfileListAdapter.flipEditingProfiles());
 251         b.navProfileListHeadButtons.setOnClickListener((v) -> mProfileListAdapter.flipEditingProfiles());
 252         if (drawerListener == null) {
 253             drawerListener = new DrawerLayout.SimpleDrawerListener() {
 254                 @Override
 255                 public void onDrawerSlide(@NonNull View drawerView, float slideOffset) {
 256                     if (slideOffset > 0.2)
 257                         fabHide();
 258                 }
 259                 @Override
 260                 public void onDrawerClosed(View drawerView) {
 261                     super.onDrawerClosed(drawerView);
 262                     mProfileListAdapter.setAnimationsEnabled(false);
 263                     mProfileListAdapter.editingProfiles.setValue(false);
 264                     Data.drawerOpen.setValue(false);
 265                     fabShouldShow();
 266                 }
 267                 @Override
 268                 public void onDrawerOpened(View drawerView) {
 269                     super.onDrawerOpened(drawerView);
 270                     mProfileListAdapter.setAnimationsEnabled(true);
 271                     Data.drawerOpen.setValue(true);
 272                     fabHide();
 273                 }
 274             };
 275             b.drawerLayout.addDrawerListener(drawerListener);
 276         }
 277
 278         Data.drawerOpen.observe(this, open -> {
 279             if (open)
 280                 b.drawerLayout.open();
 281             else
 282                 b.drawerLayout.close();
 283         });
 284
 285         mainModel.getUpdateError()
 286                  .observe(this, (error) -> {
 287                      if (error == null)
 288                          return;
 289
 290                      Snackbar.make(b.mainPager, error, Snackbar.LENGTH_LONG)
 291                              .show();
 292                      mainModel.clearUpdateError();
 293                  });
 294         Data.locale.observe(this, l -> refreshLastUpdateInfo());
 295         Data.lastUpdateDate.observe(this, date -> refreshLastUpdateInfo());
 296         Data.lastUpdateTransactionCount.observe(this, date -> refreshLastUpdateInfo());
 297         Data.lastUpdateAccountCount.observe(this, date -> refreshLastUpdateInfo());
 298         b.navAccountSummary.setOnClickListener(this::onAccountSummaryClicked);
 299         b.navLatestTransactions.setOnClickListener(this::onLatestTransactionsClicked);
 300         b.navPatterns.setOnClickListener(this::onPatternsClick);
 301     }
 302     private void onPatternsClick(View view) {
 303         Intent intent = new Intent(this, PatternsActivity.class);
 304         startActivity(intent);
 305     }
 306     private void scheduleDataRetrievalIfStale(long lastUpdate) {
 307         long now = new Date().getTime();
 308         if ((lastUpdate == 0) || (now > (lastUpdate + (24 * 3600 * 1000)))) {
 309             if (lastUpdate == 0)
 310                 Logger.debug("db::", "WEB data never fetched. scheduling a fetch");
 311             else
 312                 Logger.debug("db", String.format(Locale.ENGLISH,
 313                         "WEB data last fetched at %1.3f and now is %1.3f. re-fetching",
 314                         lastUpdate / 1000f, now / 1000f));
 315
 316             mainModel.scheduleTransactionListRetrieval();
 317         }
 318     }
 319     private void createShortcuts(List<MobileLedgerProfile> list) {
 320         if (Build.VERSION.SDK_INT < Build.VERSION_CODES.N_MR1)
 321             return;
 322
 323         ShortcutManager sm = getSystemService(ShortcutManager.class);
 324         List<ShortcutInfo> shortcuts = new ArrayList<>();
 325         int i = 0;
 326         for (MobileLedgerProfile p : list) {
 327             if (shortcuts.size() >= sm.getMaxShortcutCountPerActivity())
 328                 break;
 329
 330             if (!p.isPostingPermitted())
 331                 continue;
 332
 333             final ShortcutInfo.Builder builder =
 334                     new ShortcutInfo.Builder(this, "new_transaction_" + p.getUuid());
 335             ShortcutInfo si = builder.setShortLabel(p.getName())
 336                                      .setIcon(Icon.createWithResource(this,
 337                                              R.drawable.thick_plus_icon))
 338                                      .setIntent(new Intent(Intent.ACTION_VIEW, null, this,
 339                                              NewTransactionActivity.class).putExtra("profile_uuid",
 340                                              p.getUuid()))
 341                                      .setRank(i)
 342                                      .build();
 343             shortcuts.add(si);
 344             i++;
 345         }
 346         sm.setDynamicShortcuts(shortcuts);
 347     }
 348     private void onProfileListChanged(List<MobileLedgerProfile> newList) {
 349         if ((newList == null) || newList.isEmpty()) {
 350             b.noProfilesLayout.setVisibility(View.VISIBLE);
 351             b.mainAppLayout.setVisibility(View.GONE);
 352             return;
 353         }
 354
 355         b.mainAppLayout.setVisibility(View.VISIBLE);
 356         b.noProfilesLayout.setVisibility(View.GONE);
 357
 358         b.navProfileList.setMinimumHeight(
 359                 (int) (getResources().getDimension(R.dimen.thumb_row_height) * newList.size()));
 360
 361         Logger.debug("profiles", "profile list changed");
 362         mProfileListAdapter.notifyDataSetChanged();
 363
 364         createShortcuts(newList);
 365     }
 366     /**
 367      * called when the current profile has changed
 368      */
 369     private void onProfileChanged(MobileLedgerProfile profile) {
 370         if (this.profile == null) {
 371             if (profile == null)
 372                 return;
 373         }
 374         else {
 375             if (this.profile.equals(profile))
 376                 return;
 377         }
 378
 379         boolean haveProfile = profile != null;
 380
 381         if (haveProfile)
 382             setTitle(profile.getName());
 383         else
 384             setTitle(R.string.app_name);
 385
 386         mainModel.setProfile(profile);
 387
 388         this.profile = profile;
 389
 390         int newProfileTheme = haveProfile ? profile.getThemeHue() : -1;
 391         if (newProfileTheme != Colors.profileThemeId) {
 392             Logger.debug("profiles",
 393                     String.format(Locale.ENGLISH, "profile theme %d → %d", Colors.profileThemeId,
 394                             newProfileTheme));
 395             Colors.profileThemeId = newProfileTheme;
 396             profileThemeChanged();
 397             // profileThemeChanged would restart the activity, so no need to reload the
 398             // data sets below
 399             return;
 400         }
 401
 402         b.noProfilesLayout.setVisibility(haveProfile ? View.GONE : View.VISIBLE);
 403         b.pagerLayout.setVisibility(haveProfile ? View.VISIBLE : View.VISIBLE);
 404
 405         mProfileListAdapter.notifyDataSetChanged();
 406
 407         mainModel.clearAccounts();
 408         mainModel.clearTransactions();
 409
 410         if (haveProfile) {
 411             mainModel.scheduleAccountListReload();
 412             Logger.debug("transactions", "requesting list reload");
 413             mainModel.scheduleTransactionListReload();
 414
 415             if (profile.isPostingPermitted()) {
 416                 b.toolbar.setSubtitle(null);
 417                 b.btnAddTransaction.show();
 418             }
 419             else {
 420                 b.toolbar.setSubtitle(R.string.profile_subtitle_read_only);
 421                 b.btnAddTransaction.hide();
 422             }
 423         }
 424         else {
 425             b.toolbar.setSubtitle(null);
 426             b.btnAddTransaction.hide();
 427         }
 428
 429         updateLastUpdateTextFromDB();
 430     }
 431     private void profileThemeChanged() {
 432         // un-hook all observed LiveData
 433         Data.removeProfileObservers(this);
 434         Data.profiles.removeObservers(this);
 435         Data.lastUpdateTransactionCount.removeObservers(this);
 436         Data.lastUpdateAccountCount.removeObservers(this);
 437         Data.lastUpdateDate.removeObservers(this);
 438
 439         recreate();
 440     }
 441     public void fabNewTransactionClicked(View view) {
 442         Intent intent = new Intent(this, NewTransactionActivity.class);
 443         startActivity(intent);
 444         overridePendingTransition(R.anim.slide_in_up, R.anim.dummy);
 445     }
 446     public void markDrawerItemCurrent(int id) {
 447         TextView item = b.drawerLayout.findViewById(id);
 448         item.setBackgroundColor(Colors.tableRowDarkBG);
 449
 450         for (int i = 0; i < b.navActions.getChildCount(); i++) {
 451             View view = b.navActions.getChildAt(i);
 452             if (view.getId() != id) {
 453                 view.setBackgroundColor(Color.TRANSPARENT);
 454             }
 455         }
 456     }
 457     public void onAccountSummaryClicked(View view) {
 458         b.drawerLayout.closeDrawers();
 459
 460         showAccountSummaryFragment();
 461     }
 462     private void showAccountSummaryFragment() {
 463         b.mainPager.setCurrentItem(0, true);
 464         mainModel.getAccountFilter()
 465                  .setValue(null);
 466     }
 467     public void onLatestTransactionsClicked(View view) {
 468         b.drawerLayout.closeDrawers();
 469
 470         showTransactionsFragment(null);
 471     }
 472     public void showTransactionsFragment(String accName) {
 473         mainModel.getAccountFilter()
 474                  .setValue(accName);
 475         b.mainPager.setCurrentItem(1, true);
 476     }
 477     public void showAccountTransactions(String accountName) {
 478         mBackMeansToAccountList = true;
 479         showTransactionsFragment(accountName);
 480     }
 481     @Override
 482     public void onBackPressed() {
 483         if (b.drawerLayout.isDrawerOpen(GravityCompat.START)) {
 484             b.drawerLayout.closeDrawer(GravityCompat.START);
 485         }
 486         else {
 487             if (mBackMeansToAccountList && (b.mainPager.getCurrentItem() == 1)) {
 488                 mainModel.getAccountFilter()
 489                          .setValue(null);
 490                 showAccountSummaryFragment();
 491                 mBackMeansToAccountList = false;
 492             }
 493             else {
 494                 Logger.debug("fragments", String.format(Locale.ENGLISH, "manager stack: %d",
 495                         getSupportFragmentManager().getBackStackEntryCount()));
 496
 497                 super.onBackPressed();
 498             }
 499         }
 500     }
 501     public void updateLastUpdateTextFromDB() {
 502         if (profile == null)
 503             return;
 504
 505         long lastUpdate = profile.getLongOption(MLDB.OPT_LAST_SCRAPE, 0L);
 506
 507         Logger.debug("transactions", String.format(Locale.ENGLISH, "Last update = %d", lastUpdate));
 508         if (lastUpdate == 0) {
 509             Data.lastUpdateDate.postValue(null);
 510         }
 511         else {
 512             Data.lastUpdateDate.postValue(new Date(lastUpdate));
 513         }
 514
 515         scheduleDataRetrievalIfStale(lastUpdate);
 516
 517     }
 518     private void refreshLastUpdateInfo() {
 519         final int formatFlags = DateUtils.FORMAT_SHOW_DATE | DateUtils.FORMAT_SHOW_YEAR |
 520                                 DateUtils.FORMAT_SHOW_TIME | DateUtils.FORMAT_NUMERIC_DATE;
 521         String templateForTransactions =
 522                 getResources().getString(R.string.transaction_count_summary);
 523         String templateForAccounts = getResources().getString(R.string.account_count_summary);
 524         Integer accountCount = Data.lastUpdateAccountCount.getValue();
 525         Integer transactionCount = Data.lastUpdateTransactionCount.getValue();
 526         Date lastUpdate = Data.lastUpdateDate.getValue();
 527         if (lastUpdate == null) {
 528             Data.lastTransactionsUpdateText.set("----");
 529             Data.lastAccountsUpdateText.set("----");
 530         }
 531         else {
 532             Data.lastTransactionsUpdateText.set(
 533                     String.format(Objects.requireNonNull(Data.locale.getValue()),
 534                             templateForTransactions,
 535                             transactionCount == null ? 0 : transactionCount,
 536                             DateUtils.formatDateTime(this, lastUpdate.getTime(), formatFlags)));
 537             Data.lastAccountsUpdateText.set(
 538                     String.format(Objects.requireNonNull(Data.locale.getValue()),
 539                             templateForAccounts, accountCount == null ? 0 : accountCount,
 540                             DateUtils.formatDateTime(this, lastUpdate.getTime(), formatFlags)));
 541         }
 542     }
 543     public void onStopTransactionRefreshClick(View view) {
 544         Logger.debug("interactive", "Cancelling transactions refresh");
 545         mainModel.stopTransactionsRetrieval();
 546         b.transactionListCancelDownload.setEnabled(false);
 547     }
 548     public void onRetrieveRunningChanged(Boolean running) {
 549         if (running) {
 550             b.transactionListCancelDownload.setEnabled(true);
 551             ColorStateList csl = Colors.getColorStateList();
 552             b.transactionListProgressBar.setIndeterminateTintList(csl);
 553             b.transactionListProgressBar.setProgressTintList(csl);
 554             b.transactionListProgressBar.setIndeterminate(true);
 555             if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
 556                 b.transactionListProgressBar.setProgress(0, false);
 557             }
 558             else {
 559                 b.transactionListProgressBar.setProgress(0);
 560             }
 561             b.transactionProgressLayout.setVisibility(View.VISIBLE);
 562         }
 563         else {
 564             b.transactionProgressLayout.setVisibility(View.GONE);
 565         }
 566     }
 567     public void onRetrieveProgress(RetrieveTransactionsTask.Progress progress) {
 568         if (progress.getState() == RetrieveTransactionsTask.ProgressState.FINISHED) {
 569             Logger.debug("progress", "Done");
 570             b.transactionProgressLayout.setVisibility(View.GONE);
 571
 572             mainModel.transactionRetrievalDone();
 573
 574             String error = progress.getError();
 575             if (error != null) {
 576                 if (error.equals(RetrieveTransactionsTask.Result.ERR_JSON_PARSER_ERROR))
 577                     error = getResources().getString(R.string.err_json_parser_error);
 578
 579                 AlertDialog.Builder builder = new AlertDialog.Builder(this);
 580                 builder.setMessage(error);
 581                 builder.setPositiveButton(R.string.btn_profile_options, (dialog, which) -> {
 582                     Logger.debug("error", "will start profile editor");
 583                     MobileLedgerProfile.startEditProfileActivity(this, profile);
 584                 });
 585                 builder.create()
 586                        .show();
 587                 return;
 588             }
 589
 590             return;
 591         }
 592
 593
 594         b.transactionListCancelDownload.setEnabled(true);
 595 //        ColorStateList csl = Colors.getColorStateList();
 596 //        progressBar.setIndeterminateTintList(csl);
 597 //        progressBar.setProgressTintList(csl);
 598 //        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N)
 599 //            progressBar.setProgress(0, false);
 600 //        else
 601 //            progressBar.setProgress(0);
 602         b.transactionProgressLayout.setVisibility(View.VISIBLE);
 603
 604         if (progress.isIndeterminate() || (progress.getTotal() <= 0)) {
 605             b.transactionListProgressBar.setIndeterminate(true);
 606             Logger.debug("progress", "indeterminate");
 607         }
 608         else {
 609             if (b.transactionListProgressBar.isIndeterminate()) {
 610                 b.transactionListProgressBar.setIndeterminate(false);
 611             }
 612 //            Logger.debug("progress",
 613 //                    String.format(Locale.US, "%d/%d", progress.getProgress(), progress.getTotal
 614 //                    ()));
 615             b.transactionListProgressBar.setMax(progress.getTotal());
 616             // for some reason animation doesn't work - no progress is shown (stick at 0)
 617             // on lineageOS 14.1 (Nougat, 7.1.2)
 618             if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N)
 619                 b.transactionListProgressBar.setProgress(progress.getProgress(), false);
 620             else
 621                 b.transactionListProgressBar.setProgress(progress.getProgress());
 622         }
 623     }
 624     public void fabShouldShow() {
 625         if ((profile != null) && profile.isPostingPermitted() && !b.drawerLayout.isOpen())
 626             b.btnAddTransaction.show();
 627         else
 628             fabHide();
 629     }
 630     public void fabHide() {
 631         b.btnAddTransaction.hide();
 632     }
 633
 634     public static class SectionsPagerAdapter extends FragmentStateAdapter {
 635
 636         public SectionsPagerAdapter(@NonNull FragmentActivity fragmentActivity) {
 637             super(fragmentActivity);
 638         }
 639         @NotNull
 640         @Override
 641         public Fragment createFragment(int position) {
 642             Logger.debug("main",
 643                     String.format(Locale.ENGLISH, "Switching to fragment %d", position));
 644             switch (position) {
 645                 case 0:
 646 //                    debug("flow", "Creating account summary fragment");
 647                     return new AccountSummaryFragment();
 648                 case 1:
 649                     return new TransactionListFragment();
 650                 default:
 651                     throw new IllegalStateException(
 652                             String.format("Unexpected fragment index: " + "%d", position));
 653             }
 654         }
 655
 656         @Override
 657         public int getItemCount() {
 658             return 2;
 659         }
 660     }
 661 }