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.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.LinearLayout;
  34 import android.widget.ProgressBar;
  35 import android.widget.TextView;
  36
  37 import androidx.annotation.NonNull;
  38 import androidx.appcompat.app.ActionBarDrawerToggle;
  39 import androidx.appcompat.widget.Toolbar;
  40 import androidx.core.view.GravityCompat;
  41 import androidx.drawerlayout.widget.DrawerLayout;
  42 import androidx.fragment.app.Fragment;
  43 import androidx.fragment.app.FragmentManager;
  44 import androidx.fragment.app.FragmentPagerAdapter;
  45 import androidx.lifecycle.ViewModelProvider;
  46 import androidx.recyclerview.widget.LinearLayoutManager;
  47 import androidx.recyclerview.widget.RecyclerView;
  48 import androidx.viewpager.widget.ViewPager;
  49
  50 import com.google.android.material.floatingactionbutton.FloatingActionButton;
  51 import com.google.android.material.snackbar.Snackbar;
  52
  53 import net.ktnx.mobileledger.R;
  54 import net.ktnx.mobileledger.async.RetrieveTransactionsTask;
  55 import net.ktnx.mobileledger.model.Data;
  56 import net.ktnx.mobileledger.model.MobileLedgerProfile;
  57 import net.ktnx.mobileledger.ui.MainModel;
  58 import net.ktnx.mobileledger.ui.account_summary.AccountSummaryFragment;
  59 import net.ktnx.mobileledger.ui.profiles.ProfileDetailFragment;
  60 import net.ktnx.mobileledger.ui.profiles.ProfilesRecyclerViewAdapter;
  61 import net.ktnx.mobileledger.ui.transaction_list.TransactionListFragment;
  62 import net.ktnx.mobileledger.utils.Colors;
  63 import net.ktnx.mobileledger.utils.Logger;
  64 import net.ktnx.mobileledger.utils.MLDB;
  65
  66 import org.jetbrains.annotations.NotNull;
  67
  68 import java.util.ArrayList;
  69 import java.util.Date;
  70 import java.util.List;
  71 import java.util.Locale;
  72 import java.util.Objects;
  73
  74 /*
  75  * TODO: reports
  76  *  */
  77
  78 public class MainActivity extends ProfileThemedActivity {
  79     public static final String STATE_CURRENT_PAGE = "current_page";
  80     public static final String BUNDLE_SAVED_STATE = "bundle_savedState";
  81     public static final String STATE_ACC_FILTER = "account_filter";
  82     DrawerLayout drawer;
  83     private View profileListHeadMore, profileListHeadCancel, profileListHeadAddProfile;
  84     private View bTransactionListCancelDownload;
  85     private SectionsPagerAdapter mSectionsPagerAdapter;
  86     private ViewPager mViewPager;
  87     private FloatingActionButton fab;
  88     private ProfilesRecyclerViewAdapter mProfileListAdapter;
  89     private int mCurrentPage;
  90     private boolean mBackMeansToAccountList = false;
  91     private Toolbar mToolbar;
  92     private DrawerLayout.SimpleDrawerListener drawerListener;
  93     private ActionBarDrawerToggle barDrawerToggle;
  94     private ViewPager.SimpleOnPageChangeListener pageChangeListener;
  95     private MobileLedgerProfile profile;
  96     private MainModel mainModel;
  97     @Override
  98     protected void onStart() {
  99         super.onStart();
 100
 101         Logger.debug("MainActivity", "onStart()");
 102
 103         mViewPager.setCurrentItem(mCurrentPage, false);
 104     }
 105     @Override
 106     protected void onSaveInstanceState(@NotNull Bundle outState) {
 107         super.onSaveInstanceState(outState);
 108         outState.putInt(STATE_CURRENT_PAGE, mViewPager.getCurrentItem());
 109         if (mainModel.getAccountFilter()
 110                      .getValue() != null)
 111             outState.putString(STATE_ACC_FILTER, mainModel.getAccountFilter()
 112                                                           .getValue());
 113     }
 114     @Override
 115     protected void onDestroy() {
 116         mSectionsPagerAdapter = null;
 117         RecyclerView root = findViewById(R.id.nav_profile_list);
 118         if (root != null)
 119             root.setAdapter(null);
 120         if (drawer != null)
 121             drawer.removeDrawerListener(drawerListener);
 122         drawerListener = null;
 123         if (drawer != null)
 124             drawer.removeDrawerListener(barDrawerToggle);
 125         barDrawerToggle = null;
 126         if (mViewPager != null)
 127             mViewPager.removeOnPageChangeListener(pageChangeListener);
 128         pageChangeListener = null;
 129         super.onDestroy();
 130     }
 131     @Override
 132     protected void setupProfileColors() {
 133         final int profileColor = Data.retrieveCurrentThemeIdFromDb();
 134         Colors.setupTheme(this, profileColor);
 135         Colors.profileThemeId = profileColor;
 136     }
 137     @Override
 138     protected void onResume() {
 139         super.onResume();
 140         fabShouldShow();
 141     }
 142     @Override
 143     protected void onCreate(Bundle savedInstanceState) {
 144         Logger.debug("MainActivity", "onCreate()/entry");
 145         super.onCreate(savedInstanceState);
 146         Logger.debug("MainActivity", "onCreate()/after super");
 147         setContentView(R.layout.activity_main);
 148
 149         mainModel = new ViewModelProvider(this).get(MainModel.class);
 150
 151         fab = findViewById(R.id.btn_add_transaction);
 152         profileListHeadMore = findViewById(R.id.nav_profiles_start_edit);
 153         profileListHeadCancel = findViewById(R.id.nav_profiles_cancel_edit);
 154         LinearLayout profileListHeadMoreAndCancel =
 155                 findViewById(R.id.nav_profile_list_head_buttons);
 156         profileListHeadAddProfile = findViewById(R.id.nav_new_profile_button);
 157         drawer = findViewById(R.id.drawer_layout);
 158         bTransactionListCancelDownload = findViewById(R.id.transaction_list_cancel_download);
 159         mSectionsPagerAdapter = new SectionsPagerAdapter(getSupportFragmentManager());
 160         mViewPager = findViewById(R.id.root_frame);
 161
 162         Bundle extra = getIntent().getBundleExtra(BUNDLE_SAVED_STATE);
 163         if (extra != null && savedInstanceState == null)
 164             savedInstanceState = extra;
 165
 166
 167         mToolbar = findViewById(R.id.toolbar);
 168         setSupportActionBar(mToolbar);
 169
 170         Data.observeProfile(this, this::onProfileChanged);
 171
 172         Data.profiles.observe(this, this::onProfileListChanged);
 173         Data.backgroundTaskProgress.observe(this, this::onRetrieveProgress);
 174         Data.backgroundTasksRunning.observe(this, this::onRetrieveRunningChanged);
 175
 176         if (barDrawerToggle == null) {
 177             barDrawerToggle = new ActionBarDrawerToggle(this, drawer, mToolbar,
 178                     R.string.navigation_drawer_open, R.string.navigation_drawer_close);
 179             drawer.addDrawerListener(barDrawerToggle);
 180         }
 181         barDrawerToggle.syncState();
 182
 183         try {
 184             PackageInfo pi = getApplicationContext().getPackageManager()
 185                                                     .getPackageInfo(getPackageName(), 0);
 186             ((TextView) findViewById(R.id.nav_upper).findViewById(
 187                     R.id.drawer_version_text)).setText(pi.versionName);
 188             ((TextView) findViewById(R.id.no_profiles_layout).findViewById(
 189                     R.id.drawer_version_text)).setText(pi.versionName);
 190         }
 191         catch (Exception e) {
 192             e.printStackTrace();
 193         }
 194
 195         markDrawerItemCurrent(R.id.nav_account_summary);
 196
 197         mViewPager.setAdapter(mSectionsPagerAdapter);
 198
 199         if (pageChangeListener == null) {
 200             pageChangeListener = new ViewPager.SimpleOnPageChangeListener() {
 201                 @Override
 202                 public void onPageSelected(int position) {
 203                     mCurrentPage = position;
 204                     switch (position) {
 205                         case 0:
 206                             markDrawerItemCurrent(R.id.nav_account_summary);
 207                             break;
 208                         case 1:
 209                             markDrawerItemCurrent(R.id.nav_latest_transactions);
 210                             break;
 211                         default:
 212                             Log.e("MainActivity",
 213                                     String.format("Unexpected page index %d", position));
 214                     }
 215
 216                     super.onPageSelected(position);
 217                 }
 218             };
 219             mViewPager.addOnPageChangeListener(pageChangeListener);
 220         }
 221
 222         mCurrentPage = 0;
 223         if (savedInstanceState != null) {
 224             int currentPage = savedInstanceState.getInt(STATE_CURRENT_PAGE, -1);
 225             if (currentPage != -1) {
 226                 mCurrentPage = currentPage;
 227             }
 228             mainModel.getAccountFilter()
 229                      .setValue(savedInstanceState.getString(STATE_ACC_FILTER, null));
 230         }
 231
 232         findViewById(R.id.btn_no_profiles_add).setOnClickListener(
 233                 v -> startEditProfileActivity(null));
 234
 235         findViewById(R.id.btn_add_transaction).setOnClickListener(this::fabNewTransactionClicked);
 236
 237         findViewById(R.id.nav_new_profile_button).setOnClickListener(
 238                 v -> startEditProfileActivity(null));
 239
 240         findViewById(R.id.transaction_list_cancel_download).setOnClickListener(this::onStopTransactionRefreshClick);
 241
 242         RecyclerView root = findViewById(R.id.nav_profile_list);
 243         if (root == null)
 244             throw new RuntimeException("Can't get hold on the transaction value view");
 245
 246         if (mProfileListAdapter == null)
 247             mProfileListAdapter = new ProfilesRecyclerViewAdapter();
 248         root.setAdapter(mProfileListAdapter);
 249
 250         mProfileListAdapter.editingProfiles.observe(this, newValue -> {
 251             if (newValue) {
 252                 profileListHeadMore.setVisibility(View.GONE);
 253                 profileListHeadCancel.setVisibility(View.VISIBLE);
 254                 profileListHeadAddProfile.setVisibility(View.VISIBLE);
 255                 if (drawer.isDrawerOpen(GravityCompat.START)) {
 256                     profileListHeadMore.startAnimation(
 257                             AnimationUtils.loadAnimation(MainActivity.this, R.anim.fade_out));
 258                     profileListHeadCancel.startAnimation(
 259                             AnimationUtils.loadAnimation(MainActivity.this, R.anim.fade_in));
 260                     profileListHeadAddProfile.startAnimation(
 261                             AnimationUtils.loadAnimation(MainActivity.this, R.anim.fade_in));
 262                 }
 263             }
 264             else {
 265                 profileListHeadCancel.setVisibility(View.GONE);
 266                 profileListHeadMore.setVisibility(View.VISIBLE);
 267                 profileListHeadAddProfile.setVisibility(View.GONE);
 268                 if (drawer.isDrawerOpen(GravityCompat.START)) {
 269                     profileListHeadCancel.startAnimation(
 270                             AnimationUtils.loadAnimation(MainActivity.this, R.anim.fade_out));
 271                     profileListHeadMore.startAnimation(
 272                             AnimationUtils.loadAnimation(MainActivity.this, R.anim.fade_in));
 273                     profileListHeadAddProfile.startAnimation(
 274                             AnimationUtils.loadAnimation(MainActivity.this, R.anim.fade_out));
 275                 }
 276             }
 277
 278             mProfileListAdapter.notifyDataSetChanged();
 279         });
 280
 281         LinearLayoutManager llm = new LinearLayoutManager(this);
 282
 283         llm.setOrientation(RecyclerView.VERTICAL);
 284         root.setLayoutManager(llm);
 285
 286         profileListHeadMore.setOnClickListener((v) -> mProfileListAdapter.flipEditingProfiles());
 287         profileListHeadCancel.setOnClickListener((v) -> mProfileListAdapter.flipEditingProfiles());
 288         profileListHeadMoreAndCancel.setOnClickListener(
 289                 (v) -> mProfileListAdapter.flipEditingProfiles());
 290         if (drawerListener == null) {
 291             drawerListener = new DrawerLayout.SimpleDrawerListener() {
 292                 @Override
 293                 public void onDrawerSlide(@NonNull View drawerView, float slideOffset) {
 294                     if (slideOffset > 0.2)
 295                         fabHide();
 296                 }
 297                 @Override
 298                 public void onDrawerClosed(View drawerView) {
 299                     super.onDrawerClosed(drawerView);
 300                     mProfileListAdapter.setAnimationsEnabled(false);
 301                     mProfileListAdapter.editingProfiles.setValue(false);
 302                     Data.drawerOpen.setValue(false);
 303                     fabShouldShow();
 304                 }
 305                 @Override
 306                 public void onDrawerOpened(View drawerView) {
 307                     super.onDrawerOpened(drawerView);
 308                     mProfileListAdapter.setAnimationsEnabled(true);
 309                     Data.drawerOpen.setValue(true);
 310                     fabHide();
 311                 }
 312             };
 313             drawer.addDrawerListener(drawerListener);
 314         }
 315
 316         Data.drawerOpen.observe(this, open -> {
 317             if (open)
 318                 drawer.open();
 319             else
 320                 drawer.close();
 321         });
 322
 323         mainModel.getUpdateError()
 324                  .observe(this, (error) -> {
 325                      if (error == null)
 326                          return;
 327
 328                      Snackbar.make(mViewPager, error, Snackbar.LENGTH_LONG)
 329                              .show();
 330                      mainModel.clearUpdateError();
 331                  });
 332         Data.locale.observe(this, l -> refreshLastUpdateInfo());
 333         Data.lastUpdateDate.observe(this, date -> refreshLastUpdateInfo());
 334         Data.lastUpdateTransactionCount.observe(this, date -> refreshLastUpdateInfo());
 335         Data.lastUpdateAccountCount.observe(this, date -> refreshLastUpdateInfo());
 336     }
 337     private void scheduleDataRetrievalIfStale(long lastUpdate) {
 338         long now = new Date().getTime();
 339         if ((lastUpdate == 0) || (now > (lastUpdate + (24 * 3600 * 1000)))) {
 340             if (lastUpdate == 0)
 341                 Logger.debug("db::", "WEB data never fetched. scheduling a fetch");
 342             else
 343                 Logger.debug("db", String.format(Locale.ENGLISH,
 344                         "WEB data last fetched at %1.3f and now is %1.3f. re-fetching",
 345                         lastUpdate / 1000f, now / 1000f));
 346
 347             mainModel.scheduleTransactionListRetrieval();
 348         }
 349     }
 350     private void createShortcuts(List<MobileLedgerProfile> list) {
 351         if (Build.VERSION.SDK_INT < Build.VERSION_CODES.N_MR1)
 352             return;
 353
 354         ShortcutManager sm = getSystemService(ShortcutManager.class);
 355         List<ShortcutInfo> shortcuts = new ArrayList<>();
 356         int i = 0;
 357         for (MobileLedgerProfile p : list) {
 358             if (shortcuts.size() >= sm.getMaxShortcutCountPerActivity())
 359                 break;
 360
 361             if (!p.isPostingPermitted())
 362                 continue;
 363
 364             final ShortcutInfo.Builder builder =
 365                     new ShortcutInfo.Builder(this, "new_transaction_" + p.getUuid());
 366             ShortcutInfo si = builder.setShortLabel(p.getName())
 367                                      .setIcon(Icon.createWithResource(this,
 368                                              R.drawable.thick_plus_icon))
 369                                      .setIntent(new Intent(Intent.ACTION_VIEW, null, this,
 370                                              NewTransactionActivity.class).putExtra("profile_uuid",
 371                                              p.getUuid()))
 372                                      .setRank(i)
 373                                      .build();
 374             shortcuts.add(si);
 375             i++;
 376         }
 377         sm.setDynamicShortcuts(shortcuts);
 378     }
 379     private void onProfileListChanged(List<MobileLedgerProfile> newList) {
 380         if ((newList == null) || newList.isEmpty()) {
 381             findViewById(R.id.no_profiles_layout).setVisibility(View.VISIBLE);
 382             findViewById(R.id.main_app_layout).setVisibility(View.GONE);
 383             return;
 384         }
 385
 386         findViewById(R.id.main_app_layout).setVisibility(View.VISIBLE);
 387         findViewById(R.id.no_profiles_layout).setVisibility(View.GONE);
 388
 389         findViewById(R.id.nav_profile_list).setMinimumHeight(
 390                 (int) (getResources().getDimension(R.dimen.thumb_row_height) * newList.size()));
 391
 392         Logger.debug("profiles", "profile list changed");
 393         mProfileListAdapter.notifyDataSetChanged();
 394
 395         createShortcuts(newList);
 396     }
 397     /**
 398      * called when the current profile has changed
 399      */
 400     private void onProfileChanged(MobileLedgerProfile profile) {
 401         if (this.profile == null) {
 402             if (profile == null)
 403                 return;
 404         }
 405         else {
 406             if (this.profile.equals(profile))
 407                 return;
 408         }
 409
 410         boolean haveProfile = profile != null;
 411
 412         if (haveProfile)
 413             setTitle(profile.getName());
 414         else
 415             setTitle(R.string.app_name);
 416
 417         mainModel.setProfile(profile);
 418
 419         this.profile = profile;
 420
 421         int newProfileTheme = haveProfile ? profile.getThemeHue() : -1;
 422         if (newProfileTheme != Colors.profileThemeId) {
 423             Logger.debug("profiles",
 424                     String.format(Locale.ENGLISH, "profile theme %d → %d", Colors.profileThemeId,
 425                             newProfileTheme));
 426             Colors.profileThemeId = newProfileTheme;
 427             profileThemeChanged();
 428             // profileThemeChanged would restart the activity, so no need to reload the
 429             // data sets below
 430             return;
 431         }
 432
 433         findViewById(R.id.no_profiles_layout).setVisibility(haveProfile ? View.GONE : View.VISIBLE);
 434         findViewById(R.id.pager_layout).setVisibility(haveProfile ? View.VISIBLE : View.VISIBLE);
 435
 436         mProfileListAdapter.notifyDataSetChanged();
 437
 438         mainModel.clearAccounts();
 439         mainModel.clearTransactions();
 440
 441         if (haveProfile) {
 442             mainModel.scheduleAccountListReload();
 443             Logger.debug("transactions", "requesting list reload");
 444             mainModel.scheduleTransactionListReload();
 445
 446             if (profile.isPostingPermitted()) {
 447                 mToolbar.setSubtitle(null);
 448                 fab.show();
 449             }
 450             else {
 451                 mToolbar.setSubtitle(R.string.profile_subtitle_read_only);
 452                 fab.hide();
 453             }
 454         }
 455         else {
 456             mToolbar.setSubtitle(null);
 457             fab.hide();
 458         }
 459
 460         updateLastUpdateTextFromDB();
 461     }
 462     private void profileThemeChanged() {
 463         // un-hook all observed LiveData
 464         Data.removeProfileObservers(this);
 465         Data.profiles.removeObservers(this);
 466         Data.lastUpdateTransactionCount.removeObservers(this);
 467         Data.lastUpdateAccountCount.removeObservers(this);
 468         Data.lastUpdateDate.removeObservers(this);
 469
 470         recreate();
 471     }
 472     public void startEditProfileActivity(MobileLedgerProfile profile) {
 473         Intent intent = new Intent(this, ProfileDetailActivity.class);
 474         Bundle args = new Bundle();
 475         if (profile != null) {
 476             int index = Data.getProfileIndex(profile);
 477             if (index != -1)
 478                 intent.putExtra(ProfileDetailFragment.ARG_ITEM_ID, index);
 479         }
 480         intent.putExtras(args);
 481         startActivity(intent, args);
 482     }
 483     public void fabNewTransactionClicked(View view) {
 484         Intent intent = new Intent(this, NewTransactionActivity.class);
 485         startActivity(intent);
 486         overridePendingTransition(R.anim.slide_in_up, R.anim.dummy);
 487     }
 488     public void markDrawerItemCurrent(int id) {
 489         TextView item = drawer.findViewById(id);
 490         item.setBackgroundColor(Colors.tableRowDarkBG);
 491
 492         LinearLayout actions = drawer.findViewById(R.id.nav_actions);
 493         for (int i = 0; i < actions.getChildCount(); i++) {
 494             View view = actions.getChildAt(i);
 495             if (view.getId() != id) {
 496                 view.setBackgroundColor(Color.TRANSPARENT);
 497             }
 498         }
 499     }
 500     public void onAccountSummaryClicked(View view) {
 501         drawer.closeDrawers();
 502
 503         showAccountSummaryFragment();
 504     }
 505     private void showAccountSummaryFragment() {
 506         mViewPager.setCurrentItem(0, true);
 507         mainModel.getAccountFilter()
 508                  .setValue(null);
 509     }
 510     public void onLatestTransactionsClicked(View view) {
 511         drawer.closeDrawers();
 512
 513         showTransactionsFragment(null);
 514     }
 515     public void showTransactionsFragment(String accName) {
 516         mainModel.getAccountFilter()
 517                  .setValue(accName);
 518         mViewPager.setCurrentItem(1, true);
 519     }
 520     public void showAccountTransactions(String accountName) {
 521         mBackMeansToAccountList = true;
 522         showTransactionsFragment(accountName);
 523     }
 524     @Override
 525     public void onBackPressed() {
 526         DrawerLayout drawer = findViewById(R.id.drawer_layout);
 527         if (drawer.isDrawerOpen(GravityCompat.START)) {
 528             drawer.closeDrawer(GravityCompat.START);
 529         }
 530         else {
 531             if (mBackMeansToAccountList && (mViewPager.getCurrentItem() == 1)) {
 532                 mainModel.getAccountFilter()
 533                          .setValue(null);
 534                 showAccountSummaryFragment();
 535                 mBackMeansToAccountList = false;
 536             }
 537             else {
 538                 Logger.debug("fragments", String.format(Locale.ENGLISH, "manager stack: %d",
 539                         getSupportFragmentManager().getBackStackEntryCount()));
 540
 541                 super.onBackPressed();
 542             }
 543         }
 544     }
 545     public void updateLastUpdateTextFromDB() {
 546         if (profile == null)
 547             return;
 548
 549         long lastUpdate = profile.getLongOption(MLDB.OPT_LAST_SCRAPE, 0L);
 550
 551         Logger.debug("transactions", String.format(Locale.ENGLISH, "Last update = %d", lastUpdate));
 552         if (lastUpdate == 0) {
 553             Data.lastUpdateDate.postValue(null);
 554         }
 555         else {
 556             Data.lastUpdateDate.postValue(new Date(lastUpdate));
 557         }
 558
 559         scheduleDataRetrievalIfStale(lastUpdate);
 560
 561     }
 562     private void refreshLastUpdateInfo() {
 563         final int formatFlags = DateUtils.FORMAT_SHOW_DATE | DateUtils.FORMAT_SHOW_YEAR |
 564                                 DateUtils.FORMAT_SHOW_TIME | DateUtils.FORMAT_NUMERIC_DATE;
 565         String templateForTransactions =
 566                 getResources().getString(R.string.transaction_count_summary);
 567         String templateForAccounts = getResources().getString(R.string.account_count_summary);
 568         Integer accountCount = Data.lastUpdateAccountCount.getValue();
 569         Integer transactionCount = Data.lastUpdateTransactionCount.getValue();
 570         Date lastUpdate = Data.lastUpdateDate.getValue();
 571         if (lastUpdate == null) {
 572             Data.lastTransactionsUpdateText.set("----");
 573             Data.lastAccountsUpdateText.set("----");
 574         }
 575         else {
 576             Data.lastTransactionsUpdateText.set(
 577                     String.format(Objects.requireNonNull(Data.locale.getValue()),
 578                             templateForTransactions,
 579                             transactionCount == null ? 0 : transactionCount,
 580                             DateUtils.formatDateTime(this, lastUpdate.getTime(), formatFlags)));
 581             Data.lastAccountsUpdateText.set(
 582                     String.format(Objects.requireNonNull(Data.locale.getValue()),
 583                             templateForAccounts, accountCount == null ? 0 : accountCount,
 584                             DateUtils.formatDateTime(this, lastUpdate.getTime(), formatFlags)));
 585         }
 586     }
 587     public void onStopTransactionRefreshClick(View view) {
 588         Logger.debug("interactive", "Cancelling transactions refresh");
 589         mainModel.stopTransactionsRetrieval();
 590         bTransactionListCancelDownload.setEnabled(false);
 591     }
 592     public void onRetrieveRunningChanged(Boolean running) {
 593         final View progressLayout = findViewById(R.id.transaction_progress_layout);
 594         if (running) {
 595             ProgressBar progressBar = findViewById(R.id.transaction_list_progress_bar);
 596             bTransactionListCancelDownload.setEnabled(true);
 597             ColorStateList csl = Colors.getColorStateList();
 598             progressBar.setIndeterminateTintList(csl);
 599             progressBar.setProgressTintList(csl);
 600             progressBar.setIndeterminate(true);
 601             if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
 602                 progressBar.setProgress(0, false);
 603             }
 604             else {
 605                 progressBar.setProgress(0);
 606             }
 607             progressLayout.setVisibility(View.VISIBLE);
 608         }
 609         else {
 610             progressLayout.setVisibility(View.GONE);
 611         }
 612     }
 613     public void onRetrieveProgress(RetrieveTransactionsTask.Progress progress) {
 614         ProgressBar progressBar = findViewById(R.id.transaction_list_progress_bar);
 615
 616         if (progress.getState() == RetrieveTransactionsTask.ProgressState.FINISHED) {
 617             Logger.debug("progress", "Done");
 618             findViewById(R.id.transaction_progress_layout).setVisibility(View.GONE);
 619
 620             mainModel.transactionRetrievalDone();
 621
 622             if (progress.getError() != null) {
 623                 Snackbar.make(mViewPager, progress.getError(), Snackbar.LENGTH_LONG)
 624                         .show();
 625                 return;
 626             }
 627
 628             return;
 629         }
 630
 631
 632         bTransactionListCancelDownload.setEnabled(true);
 633 //        ColorStateList csl = Colors.getColorStateList();
 634 //        progressBar.setIndeterminateTintList(csl);
 635 //        progressBar.setProgressTintList(csl);
 636 //        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N)
 637 //            progressBar.setProgress(0, false);
 638 //        else
 639 //            progressBar.setProgress(0);
 640         findViewById(R.id.transaction_progress_layout).setVisibility(View.VISIBLE);
 641
 642         if (progress.isIndeterminate() || (progress.getTotal() <= 0)) {
 643             progressBar.setIndeterminate(true);
 644             Logger.debug("progress", "indeterminate");
 645         }
 646         else {
 647             if (progressBar.isIndeterminate()) {
 648                 progressBar.setIndeterminate(false);
 649             }
 650 //            Logger.debug("progress",
 651 //                    String.format(Locale.US, "%d/%d", progress.getProgress(), progress.getTotal
 652 //                    ()));
 653             progressBar.setMax(progress.getTotal());
 654             // for some reason animation doesn't work - no progress is shown (stick at 0)
 655             // on lineageOS 14.1 (Nougat, 7.1.2)
 656             if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N)
 657                 progressBar.setProgress(progress.getProgress(), false);
 658             else
 659                 progressBar.setProgress(progress.getProgress());
 660         }
 661     }
 662     public void fabShouldShow() {
 663         if ((profile != null) && profile.isPostingPermitted() && !drawer.isOpen())
 664             fab.show();
 665         else
 666             fabHide();
 667     }
 668     public void fabHide() {
 669         fab.hide();
 670     }
 671
 672     public static class SectionsPagerAdapter extends FragmentPagerAdapter {
 673
 674         SectionsPagerAdapter(FragmentManager fm) {
 675             super(fm, BEHAVIOR_RESUME_ONLY_CURRENT_FRAGMENT);
 676         }
 677
 678         @NotNull
 679         @Override
 680         public Fragment getItem(int position) {
 681             Logger.debug("main",
 682                     String.format(Locale.ENGLISH, "Switching to fragment %d", position));
 683             switch (position) {
 684                 case 0:
 685 //                    debug("flow", "Creating account summary fragment");
 686                     return new AccountSummaryFragment();
 687                 case 1:
 688                     return new TransactionListFragment();
 689                 default:
 690                     throw new IllegalStateException(
 691                             String.format("Unexpected fragment index: " + "%d", position));
 692             }
 693         }
 694
 695         @Override
 696         public int getCount() {
 697             return 2;
 698         }
 699     }
 700 }