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.new_transaction.NewTransactionActivity;
  58 import net.ktnx.mobileledger.ui.profiles.ProfilesRecyclerViewAdapter;
  59 import net.ktnx.mobileledger.ui.templates.TemplatesActivity;
  60 import net.ktnx.mobileledger.ui.transaction_list.TransactionListFragment;
  61 import net.ktnx.mobileledger.utils.Colors;
  62 import net.ktnx.mobileledger.utils.Logger;
  63 import net.ktnx.mobileledger.utils.MLDB;
  64
  65 import org.jetbrains.annotations.NotNull;
  66
  67 import java.util.ArrayList;
  68 import java.util.Date;
  69 import java.util.List;
  70 import java.util.Locale;
  71 import java.util.Objects;
  72
  73 /*
  74  * TODO: reports
  75  *  */
  76
  77 public class MainActivity extends ProfileThemedActivity {
  78     public static final String STATE_CURRENT_PAGE = "current_page";
  79     public static final String BUNDLE_SAVED_STATE = "bundle_savedState";
  80     public static final String STATE_ACC_FILTER = "account_filter";
  81     private SectionsPagerAdapter mSectionsPagerAdapter;
  82     private ProfilesRecyclerViewAdapter mProfileListAdapter;
  83     private int mCurrentPage;
  84     private boolean mBackMeansToAccountList = false;
  85     private DrawerLayout.SimpleDrawerListener drawerListener;
  86     private ActionBarDrawerToggle barDrawerToggle;
  87     private ViewPager2.OnPageChangeCallback pageChangeCallback;
  88     private MobileLedgerProfile profile;
  89     private MainModel mainModel;
  90     private ActivityMainBinding b;
  91     @Override
  92     protected void onStart() {
  93         super.onStart();
  94
  95         Logger.debug("MainActivity", "onStart()");
  96
  97         b.mainPager.setCurrentItem(mCurrentPage, false);
  98     }
  99     @Override
 100     protected void onSaveInstanceState(@NotNull Bundle outState) {
 101         super.onSaveInstanceState(outState);
 102         outState.putInt(STATE_CURRENT_PAGE, b.mainPager.getCurrentItem());
 103         if (mainModel.getAccountFilter()
 104                      .getValue() != null)
 105             outState.putString(STATE_ACC_FILTER, mainModel.getAccountFilter()
 106                                                           .getValue());
 107     }
 108     @Override
 109     protected void onDestroy() {
 110         mSectionsPagerAdapter = null;
 111         b.navProfileList.setAdapter(null);
 112         b.drawerLayout.removeDrawerListener(drawerListener);
 113         drawerListener = null;
 114         b.drawerLayout.removeDrawerListener(barDrawerToggle);
 115         barDrawerToggle = null;
 116         b.mainPager.unregisterOnPageChangeCallback(pageChangeCallback);
 117         pageChangeCallback = null;
 118         super.onDestroy();
 119     }
 120     @Override
 121     protected void onResume() {
 122         super.onResume();
 123         fabShouldShow();
 124     }
 125     @Override
 126     protected void onCreate(Bundle savedInstanceState) {
 127         Logger.debug("MainActivity", "onCreate()/entry");
 128         super.onCreate(savedInstanceState);
 129         Logger.debug("MainActivity", "onCreate()/after super");
 130         b = ActivityMainBinding.inflate(getLayoutInflater());
 131         setContentView(b.getRoot());
 132
 133         mainModel = new ViewModelProvider(this).get(MainModel.class);
 134
 135         mSectionsPagerAdapter = new SectionsPagerAdapter(this);
 136
 137         Bundle extra = getIntent().getBundleExtra(BUNDLE_SAVED_STATE);
 138         if (extra != null && savedInstanceState == null)
 139             savedInstanceState = extra;
 140
 141
 142         setSupportActionBar(b.toolbar);
 143
 144         Data.observeProfile(this, this::onProfileChanged);
 145
 146         Data.profiles.observe(this, this::onProfileListChanged);
 147         Data.backgroundTaskProgress.observe(this, this::onRetrieveProgress);
 148         Data.backgroundTasksRunning.observe(this, this::onRetrieveRunningChanged);
 149
 150         if (barDrawerToggle == null) {
 151             barDrawerToggle = new ActionBarDrawerToggle(this, b.drawerLayout, b.toolbar,
 152                     R.string.navigation_drawer_open, R.string.navigation_drawer_close);
 153             b.drawerLayout.addDrawerListener(barDrawerToggle);
 154         }
 155         barDrawerToggle.syncState();
 156
 157         try {
 158             PackageInfo pi = getApplicationContext().getPackageManager()
 159                                                     .getPackageInfo(getPackageName(), 0);
 160             ((TextView) b.navUpper.findViewById(R.id.drawer_version_text)).setText(pi.versionName);
 161             ((TextView) b.noProfilesLayout.findViewById(R.id.drawer_version_text)).setText(
 162                     pi.versionName);
 163         }
 164         catch (Exception e) {
 165             e.printStackTrace();
 166         }
 167
 168         markDrawerItemCurrent(R.id.nav_account_summary);
 169
 170         b.mainPager.setAdapter(mSectionsPagerAdapter);
 171
 172         if (pageChangeCallback == null) {
 173             pageChangeCallback = new ViewPager2.OnPageChangeCallback() {
 174                 @Override
 175                 public void onPageSelected(int position) {
 176                     mCurrentPage = position;
 177                     switch (position) {
 178                         case 0:
 179                             markDrawerItemCurrent(R.id.nav_account_summary);
 180                             break;
 181                         case 1:
 182                             markDrawerItemCurrent(R.id.nav_latest_transactions);
 183                             break;
 184                         default:
 185                             Log.e("MainActivity",
 186                                     String.format("Unexpected page index %d", position));
 187                     }
 188
 189                     super.onPageSelected(position);
 190                 }
 191             };
 192             b.mainPager.registerOnPageChangeCallback(pageChangeCallback);
 193         }
 194
 195         mCurrentPage = 0;
 196         if (savedInstanceState != null) {
 197             int currentPage = savedInstanceState.getInt(STATE_CURRENT_PAGE, -1);
 198             if (currentPage != -1) {
 199                 mCurrentPage = currentPage;
 200             }
 201             mainModel.getAccountFilter()
 202                      .setValue(savedInstanceState.getString(STATE_ACC_FILTER, null));
 203         }
 204
 205         b.btnNoProfilesAdd.setOnClickListener(
 206                 v -> MobileLedgerProfile.startEditProfileActivity(this, null));
 207
 208         b.btnAddTransaction.setOnClickListener(this::fabNewTransactionClicked);
 209
 210         b.navNewProfileButton.setOnClickListener(
 211                 v -> MobileLedgerProfile.startEditProfileActivity(this, null));
 212
 213         b.transactionListCancelDownload.setOnClickListener(this::onStopTransactionRefreshClick);
 214
 215         if (mProfileListAdapter == null)
 216             mProfileListAdapter = new ProfilesRecyclerViewAdapter();
 217         b.navProfileList.setAdapter(mProfileListAdapter);
 218
 219         mProfileListAdapter.editingProfiles.observe(this, newValue -> {
 220             if (newValue) {
 221                 b.navProfilesStartEdit.setVisibility(View.GONE);
 222                 b.navProfilesCancelEdit.setVisibility(View.VISIBLE);
 223                 b.navNewProfileButton.setVisibility(View.VISIBLE);
 224                 if (b.drawerLayout.isDrawerOpen(GravityCompat.START)) {
 225                     b.navProfilesStartEdit.startAnimation(
 226                             AnimationUtils.loadAnimation(MainActivity.this, R.anim.fade_out));
 227                     b.navProfilesCancelEdit.startAnimation(
 228                             AnimationUtils.loadAnimation(MainActivity.this, R.anim.fade_in));
 229                     b.navNewProfileButton.startAnimation(
 230                             AnimationUtils.loadAnimation(MainActivity.this, R.anim.fade_in));
 231                 }
 232             }
 233             else {
 234                 b.navProfilesCancelEdit.setVisibility(View.GONE);
 235                 b.navProfilesStartEdit.setVisibility(View.VISIBLE);
 236                 b.navNewProfileButton.setVisibility(View.GONE);
 237                 if (b.drawerLayout.isDrawerOpen(GravityCompat.START)) {
 238                     b.navProfilesCancelEdit.startAnimation(
 239                             AnimationUtils.loadAnimation(MainActivity.this, R.anim.fade_out));
 240                     b.navProfilesStartEdit.startAnimation(
 241                             AnimationUtils.loadAnimation(MainActivity.this, R.anim.fade_in));
 242                     b.navNewProfileButton.startAnimation(
 243                             AnimationUtils.loadAnimation(MainActivity.this, R.anim.fade_out));
 244                 }
 245             }
 246
 247             mProfileListAdapter.notifyDataSetChanged();
 248         });
 249
 250         LinearLayoutManager llm = new LinearLayoutManager(this);
 251
 252         llm.setOrientation(RecyclerView.VERTICAL);
 253         b.navProfileList.setLayoutManager(llm);
 254
 255         b.navProfilesStartEdit.setOnClickListener((v) -> mProfileListAdapter.flipEditingProfiles());
 256         b.navProfilesCancelEdit.setOnClickListener(
 257                 (v) -> mProfileListAdapter.flipEditingProfiles());
 258         b.navProfileListHeadButtons.setOnClickListener(
 259                 (v) -> mProfileListAdapter.flipEditingProfiles());
 260         if (drawerListener == null) {
 261             drawerListener = new DrawerLayout.SimpleDrawerListener() {
 262                 @Override
 263                 public void onDrawerSlide(@NonNull View drawerView, float slideOffset) {
 264                     if (slideOffset > 0.2)
 265                         fabHide();
 266                 }
 267                 @Override
 268                 public void onDrawerClosed(View drawerView) {
 269                     super.onDrawerClosed(drawerView);
 270                     mProfileListAdapter.setAnimationsEnabled(false);
 271                     mProfileListAdapter.editingProfiles.setValue(false);
 272                     Data.drawerOpen.setValue(false);
 273                     fabShouldShow();
 274                 }
 275                 @Override
 276                 public void onDrawerOpened(View drawerView) {
 277                     super.onDrawerOpened(drawerView);
 278                     mProfileListAdapter.setAnimationsEnabled(true);
 279                     Data.drawerOpen.setValue(true);
 280                     fabHide();
 281                 }
 282             };
 283             b.drawerLayout.addDrawerListener(drawerListener);
 284         }
 285
 286         Data.drawerOpen.observe(this, open -> {
 287             if (open)
 288                 b.drawerLayout.open();
 289             else
 290                 b.drawerLayout.close();
 291         });
 292
 293         mainModel.getUpdateError()
 294                  .observe(this, (error) -> {
 295                      if (error == null)
 296                          return;
 297
 298                      Snackbar.make(b.mainPager, error, Snackbar.LENGTH_INDEFINITE)
 299                              .show();
 300                      mainModel.clearUpdateError();
 301                  });
 302         Data.locale.observe(this, l -> refreshLastUpdateInfo());
 303         Data.lastUpdateDate.observe(this, date -> refreshLastUpdateInfo());
 304         Data.lastUpdateTransactionCount.observe(this, date -> refreshLastUpdateInfo());
 305         Data.lastUpdateAccountCount.observe(this, date -> refreshLastUpdateInfo());
 306         b.navAccountSummary.setOnClickListener(this::onAccountSummaryClicked);
 307         b.navLatestTransactions.setOnClickListener(this::onLatestTransactionsClicked);
 308         b.navPatterns.setOnClickListener(this::onPatternsClick);
 309     }
 310     private void onPatternsClick(View view) {
 311         Intent intent = new Intent(this, TemplatesActivity.class);
 312         startActivity(intent);
 313     }
 314     private void scheduleDataRetrievalIfStale(long lastUpdate) {
 315         long now = new Date().getTime();
 316         if ((lastUpdate == 0) || (now > (lastUpdate + (24 * 3600 * 1000)))) {
 317             if (lastUpdate == 0)
 318                 Logger.debug("db::", "WEB data never fetched. scheduling a fetch");
 319             else
 320                 Logger.debug("db", String.format(Locale.ENGLISH,
 321                         "WEB data last fetched at %1.3f and now is %1.3f. re-fetching",
 322                         lastUpdate / 1000f, now / 1000f));
 323
 324             mainModel.scheduleTransactionListRetrieval();
 325         }
 326     }
 327     private void createShortcuts(List<MobileLedgerProfile> list) {
 328         if (Build.VERSION.SDK_INT < Build.VERSION_CODES.N_MR1)
 329             return;
 330
 331         ShortcutManager sm = getSystemService(ShortcutManager.class);
 332         List<ShortcutInfo> shortcuts = new ArrayList<>();
 333         int i = 0;
 334         for (MobileLedgerProfile p : list) {
 335             if (shortcuts.size() >= sm.getMaxShortcutCountPerActivity())
 336                 break;
 337
 338             if (!p.isPostingPermitted())
 339                 continue;
 340
 341             final ShortcutInfo.Builder builder =
 342                     new ShortcutInfo.Builder(this, "new_transaction_" + p.getUuid());
 343             ShortcutInfo si = builder.setShortLabel(p.getName())
 344                                      .setIcon(Icon.createWithResource(this,
 345                                              R.drawable.thick_plus_icon))
 346                                      .setIntent(new Intent(Intent.ACTION_VIEW, null, this,
 347                                              NewTransactionActivity.class).putExtra("profile_uuid",
 348                                              p.getUuid()))
 349                                      .setRank(i)
 350                                      .build();
 351             shortcuts.add(si);
 352             i++;
 353         }
 354         sm.setDynamicShortcuts(shortcuts);
 355     }
 356     private void onProfileListChanged(List<MobileLedgerProfile> newList) {
 357         if ((newList == null) || newList.isEmpty()) {
 358             b.noProfilesLayout.setVisibility(View.VISIBLE);
 359             b.mainAppLayout.setVisibility(View.GONE);
 360             return;
 361         }
 362
 363         b.mainAppLayout.setVisibility(View.VISIBLE);
 364         b.noProfilesLayout.setVisibility(View.GONE);
 365
 366         b.navProfileList.setMinimumHeight(
 367                 (int) (getResources().getDimension(R.dimen.thumb_row_height) * newList.size()));
 368
 369         Logger.debug("profiles", "profile list changed");
 370         mProfileListAdapter.notifyDataSetChanged();
 371
 372         createShortcuts(newList);
 373     }
 374     /**
 375      * called when the current profile has changed
 376      */
 377     private void onProfileChanged(MobileLedgerProfile profile) {
 378         if (this.profile == null) {
 379             if (profile == null)
 380                 return;
 381         }
 382         else {
 383             if (this.profile.equals(profile))
 384                 return;
 385         }
 386
 387         boolean haveProfile = profile != null;
 388
 389         if (haveProfile)
 390             setTitle(profile.getName());
 391         else
 392             setTitle(R.string.app_name);
 393
 394         mainModel.setProfile(profile);
 395
 396         this.profile = profile;
 397
 398         int newProfileTheme = haveProfile ? profile.getThemeHue() : -1;
 399         if (newProfileTheme != Colors.profileThemeId) {
 400             Logger.debug("profiles",
 401                     String.format(Locale.ENGLISH, "profile theme %d → %d", Colors.profileThemeId,
 402                             newProfileTheme));
 403             Colors.profileThemeId = newProfileTheme;
 404             profileThemeChanged();
 405             // profileThemeChanged would restart the activity, so no need to reload the
 406             // data sets below
 407             return;
 408         }
 409
 410         b.noProfilesLayout.setVisibility(haveProfile ? View.GONE : View.VISIBLE);
 411         b.pagerLayout.setVisibility(haveProfile ? View.VISIBLE : View.VISIBLE);
 412
 413         mProfileListAdapter.notifyDataSetChanged();
 414
 415         mainModel.clearAccounts();
 416         mainModel.clearTransactions();
 417
 418         if (haveProfile) {
 419             mainModel.scheduleAccountListReload();
 420             Logger.debug("transactions", "requesting list reload");
 421             mainModel.scheduleTransactionListReload();
 422
 423             if (profile.isPostingPermitted()) {
 424                 b.toolbar.setSubtitle(null);
 425                 b.btnAddTransaction.show();
 426             }
 427             else {
 428                 b.toolbar.setSubtitle(R.string.profile_subtitle_read_only);
 429                 b.btnAddTransaction.hide();
 430             }
 431         }
 432         else {
 433             b.toolbar.setSubtitle(null);
 434             b.btnAddTransaction.hide();
 435         }
 436
 437         updateLastUpdateTextFromDB();
 438     }
 439     private void profileThemeChanged() {
 440         // un-hook all observed LiveData
 441         Data.removeProfileObservers(this);
 442         Data.profiles.removeObservers(this);
 443         Data.lastUpdateTransactionCount.removeObservers(this);
 444         Data.lastUpdateAccountCount.removeObservers(this);
 445         Data.lastUpdateDate.removeObservers(this);
 446
 447         recreate();
 448     }
 449     public void fabNewTransactionClicked(View view) {
 450         Intent intent = new Intent(this, NewTransactionActivity.class);
 451         startActivity(intent);
 452         overridePendingTransition(R.anim.slide_in_up, R.anim.dummy);
 453     }
 454     public void markDrawerItemCurrent(int id) {
 455         TextView item = b.drawerLayout.findViewById(id);
 456         item.setBackgroundColor(Colors.tableRowDarkBG);
 457
 458         for (int i = 0; i < b.navActions.getChildCount(); i++) {
 459             View view = b.navActions.getChildAt(i);
 460             if (view.getId() != id) {
 461                 view.setBackgroundColor(Color.TRANSPARENT);
 462             }
 463         }
 464     }
 465     public void onAccountSummaryClicked(View view) {
 466         b.drawerLayout.closeDrawers();
 467
 468         showAccountSummaryFragment();
 469     }
 470     private void showAccountSummaryFragment() {
 471         b.mainPager.setCurrentItem(0, true);
 472         mainModel.getAccountFilter()
 473                  .setValue(null);
 474     }
 475     public void onLatestTransactionsClicked(View view) {
 476         b.drawerLayout.closeDrawers();
 477
 478         showTransactionsFragment(null);
 479     }
 480     public void showTransactionsFragment(String accName) {
 481         mainModel.getAccountFilter()
 482                  .setValue(accName);
 483         b.mainPager.setCurrentItem(1, true);
 484     }
 485     public void showAccountTransactions(String accountName) {
 486         mBackMeansToAccountList = true;
 487         showTransactionsFragment(accountName);
 488     }
 489     @Override
 490     public void onBackPressed() {
 491         if (b.drawerLayout.isDrawerOpen(GravityCompat.START)) {
 492             b.drawerLayout.closeDrawer(GravityCompat.START);
 493         }
 494         else {
 495             if (mBackMeansToAccountList && (b.mainPager.getCurrentItem() == 1)) {
 496                 mainModel.getAccountFilter()
 497                          .setValue(null);
 498                 showAccountSummaryFragment();
 499                 mBackMeansToAccountList = false;
 500             }
 501             else {
 502                 Logger.debug("fragments", String.format(Locale.ENGLISH, "manager stack: %d",
 503                         getSupportFragmentManager().getBackStackEntryCount()));
 504
 505                 super.onBackPressed();
 506             }
 507         }
 508     }
 509     public void updateLastUpdateTextFromDB() {
 510         if (profile == null)
 511             return;
 512
 513         long lastUpdate = profile.getLongOption(MLDB.OPT_LAST_SCRAPE, 0L);
 514
 515         Logger.debug("transactions", String.format(Locale.ENGLISH, "Last update = %d", lastUpdate));
 516         if (lastUpdate == 0) {
 517             Data.lastUpdateDate.postValue(null);
 518         }
 519         else {
 520             Data.lastUpdateDate.postValue(new Date(lastUpdate));
 521         }
 522
 523         scheduleDataRetrievalIfStale(lastUpdate);
 524
 525     }
 526     private void refreshLastUpdateInfo() {
 527         final int formatFlags = DateUtils.FORMAT_SHOW_DATE | DateUtils.FORMAT_SHOW_YEAR |
 528                                 DateUtils.FORMAT_SHOW_TIME | DateUtils.FORMAT_NUMERIC_DATE;
 529         String templateForTransactions =
 530                 getResources().getString(R.string.transaction_count_summary);
 531         String templateForAccounts = getResources().getString(R.string.account_count_summary);
 532         Integer accountCount = Data.lastUpdateAccountCount.getValue();
 533         Integer transactionCount = Data.lastUpdateTransactionCount.getValue();
 534         Date lastUpdate = Data.lastUpdateDate.getValue();
 535         if (lastUpdate == null) {
 536             Data.lastTransactionsUpdateText.set("----");
 537             Data.lastAccountsUpdateText.set("----");
 538         }
 539         else {
 540             Data.lastTransactionsUpdateText.set(
 541                     String.format(Objects.requireNonNull(Data.locale.getValue()),
 542                             templateForTransactions,
 543                             transactionCount == null ? 0 : transactionCount,
 544                             DateUtils.formatDateTime(this, lastUpdate.getTime(), formatFlags)));
 545             Data.lastAccountsUpdateText.set(
 546                     String.format(Objects.requireNonNull(Data.locale.getValue()),
 547                             templateForAccounts, accountCount == null ? 0 : accountCount,
 548                             DateUtils.formatDateTime(this, lastUpdate.getTime(), formatFlags)));
 549         }
 550     }
 551     public void onStopTransactionRefreshClick(View view) {
 552         Logger.debug("interactive", "Cancelling transactions refresh");
 553         mainModel.stopTransactionsRetrieval();
 554         b.transactionListCancelDownload.setEnabled(false);
 555     }
 556     public void onRetrieveRunningChanged(Boolean running) {
 557         if (running) {
 558             b.transactionListCancelDownload.setEnabled(true);
 559             ColorStateList csl = Colors.getColorStateList();
 560             b.transactionListProgressBar.setIndeterminateTintList(csl);
 561             b.transactionListProgressBar.setProgressTintList(csl);
 562             b.transactionListProgressBar.setIndeterminate(true);
 563             if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
 564                 b.transactionListProgressBar.setProgress(0, false);
 565             }
 566             else {
 567                 b.transactionListProgressBar.setProgress(0);
 568             }
 569             b.transactionProgressLayout.setVisibility(View.VISIBLE);
 570         }
 571         else {
 572             b.transactionProgressLayout.setVisibility(View.GONE);
 573         }
 574     }
 575     public void onRetrieveProgress(RetrieveTransactionsTask.Progress progress) {
 576         if (progress.getState() == RetrieveTransactionsTask.ProgressState.FINISHED) {
 577             Logger.debug("progress", "Done");
 578             b.transactionProgressLayout.setVisibility(View.GONE);
 579
 580             mainModel.transactionRetrievalDone();
 581
 582             String error = progress.getError();
 583             if (error != null) {
 584                 if (error.equals(RetrieveTransactionsTask.Result.ERR_JSON_PARSER_ERROR))
 585                     error = getResources().getString(R.string.err_json_parser_error);
 586
 587                 AlertDialog.Builder builder = new AlertDialog.Builder(this);
 588                 builder.setMessage(error);
 589                 builder.setPositiveButton(R.string.btn_profile_options, (dialog, which) -> {
 590                     Logger.debug("error", "will start profile editor");
 591                     MobileLedgerProfile.startEditProfileActivity(this, profile);
 592                 });
 593                 builder.create()
 594                        .show();
 595                 return;
 596             }
 597
 598             return;
 599         }
 600
 601
 602         b.transactionListCancelDownload.setEnabled(true);
 603 //        ColorStateList csl = Colors.getColorStateList();
 604 //        progressBar.setIndeterminateTintList(csl);
 605 //        progressBar.setProgressTintList(csl);
 606 //        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N)
 607 //            progressBar.setProgress(0, false);
 608 //        else
 609 //            progressBar.setProgress(0);
 610         b.transactionProgressLayout.setVisibility(View.VISIBLE);
 611
 612         if (progress.isIndeterminate() || (progress.getTotal() <= 0)) {
 613             b.transactionListProgressBar.setIndeterminate(true);
 614             Logger.debug("progress", "indeterminate");
 615         }
 616         else {
 617             if (b.transactionListProgressBar.isIndeterminate()) {
 618                 b.transactionListProgressBar.setIndeterminate(false);
 619             }
 620 //            Logger.debug("progress",
 621 //                    String.format(Locale.US, "%d/%d", progress.getProgress(), progress.getTotal
 622 //                    ()));
 623             b.transactionListProgressBar.setMax(progress.getTotal());
 624             // for some reason animation doesn't work - no progress is shown (stick at 0)
 625             // on lineageOS 14.1 (Nougat, 7.1.2)
 626             if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N)
 627                 b.transactionListProgressBar.setProgress(progress.getProgress(), false);
 628             else
 629                 b.transactionListProgressBar.setProgress(progress.getProgress());
 630         }
 631     }
 632     public void fabShouldShow() {
 633         if ((profile != null) && profile.isPostingPermitted() && !b.drawerLayout.isOpen())
 634             b.btnAddTransaction.show();
 635         else
 636             fabHide();
 637     }
 638     public void fabHide() {
 639         b.btnAddTransaction.hide();
 640     }
 641
 642     public static class SectionsPagerAdapter extends FragmentStateAdapter {
 643
 644         public SectionsPagerAdapter(@NonNull FragmentActivity fragmentActivity) {
 645             super(fragmentActivity);
 646         }
 647         @NotNull
 648         @Override
 649         public Fragment createFragment(int position) {
 650             Logger.debug("main",
 651                     String.format(Locale.ENGLISH, "Switching to fragment %d", position));
 652             switch (position) {
 653                 case 0:
 654 //                    debug("flow", "Creating account summary fragment");
 655                     return new AccountSummaryFragment();
 656                 case 1:
 657                     return new TransactionListFragment();
 658                 default:
 659                     throw new IllegalStateException(
 660                             String.format("Unexpected fragment index: " + "%d", position));
 661             }
 662         }
 663
 664         @Override
 665         public int getItemCount() {
 666             return 2;
 667         }
 668     }
 669 }