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.app.AlertDialog;
  40 import androidx.appcompat.widget.Toolbar;
  41 import androidx.core.view.GravityCompat;
  42 import androidx.drawerlayout.widget.DrawerLayout;
  43 import androidx.fragment.app.Fragment;
  44 import androidx.fragment.app.FragmentActivity;
  45 import androidx.lifecycle.ViewModelProvider;
  46 import androidx.recyclerview.widget.LinearLayoutManager;
  47 import androidx.recyclerview.widget.RecyclerView;
  48 import androidx.viewpager2.adapter.FragmentStateAdapter;
  49 import androidx.viewpager2.widget.ViewPager2;
  50
  51 import com.google.android.material.floatingactionbutton.FloatingActionButton;
  52 import com.google.android.material.snackbar.Snackbar;
  53
  54 import net.ktnx.mobileledger.R;
  55 import net.ktnx.mobileledger.async.RetrieveTransactionsTask;
  56 import net.ktnx.mobileledger.model.Data;
  57 import net.ktnx.mobileledger.model.MobileLedgerProfile;
  58 import net.ktnx.mobileledger.ui.MainModel;
  59 import net.ktnx.mobileledger.ui.account_summary.AccountSummaryFragment;
  60 import net.ktnx.mobileledger.ui.profiles.ProfileDetailFragment;
  61 import net.ktnx.mobileledger.ui.profiles.ProfilesRecyclerViewAdapter;
  62 import net.ktnx.mobileledger.ui.transaction_list.TransactionListFragment;
  63 import net.ktnx.mobileledger.utils.Colors;
  64 import net.ktnx.mobileledger.utils.Logger;
  65 import net.ktnx.mobileledger.utils.MLDB;
  66
  67 import org.jetbrains.annotations.NotNull;
  68
  69 import java.util.ArrayList;
  70 import java.util.Date;
  71 import java.util.List;
  72 import java.util.Locale;
  73 import java.util.Objects;
  74
  75 /*
  76  * TODO: reports
  77  *  */
  78
  79 public class MainActivity extends ProfileThemedActivity {
  80     public static final String STATE_CURRENT_PAGE = "current_page";
  81     public static final String BUNDLE_SAVED_STATE = "bundle_savedState";
  82     public static final String STATE_ACC_FILTER = "account_filter";
  83     DrawerLayout drawer;
  84     private View profileListHeadMore, profileListHeadCancel, profileListHeadAddProfile;
  85     private View bTransactionListCancelDownload;
  86     private SectionsPagerAdapter mSectionsPagerAdapter;
  87     private ViewPager2 mViewPager;
  88     private FloatingActionButton fab;
  89     private ProfilesRecyclerViewAdapter mProfileListAdapter;
  90     private int mCurrentPage;
  91     private boolean mBackMeansToAccountList = false;
  92     private Toolbar mToolbar;
  93     private DrawerLayout.SimpleDrawerListener drawerListener;
  94     private ActionBarDrawerToggle barDrawerToggle;
  95     private ViewPager2.OnPageChangeCallback pageChangeCallback;
  96     private MobileLedgerProfile profile;
  97     private MainModel mainModel;
  98     @Override
  99     protected void onStart() {
 100         super.onStart();
 101
 102         Logger.debug("MainActivity", "onStart()");
 103
 104         mViewPager.setCurrentItem(mCurrentPage, false);
 105     }
 106     @Override
 107     protected void onSaveInstanceState(@NotNull Bundle outState) {
 108         super.onSaveInstanceState(outState);
 109         outState.putInt(STATE_CURRENT_PAGE, mViewPager.getCurrentItem());
 110         if (mainModel.getAccountFilter()
 111                      .getValue() != null)
 112             outState.putString(STATE_ACC_FILTER, mainModel.getAccountFilter()
 113                                                           .getValue());
 114     }
 115     @Override
 116     protected void onDestroy() {
 117         mSectionsPagerAdapter = null;
 118         RecyclerView root = findViewById(R.id.nav_profile_list);
 119         if (root != null)
 120             root.setAdapter(null);
 121         if (drawer != null)
 122             drawer.removeDrawerListener(drawerListener);
 123         drawerListener = null;
 124         if (drawer != null)
 125             drawer.removeDrawerListener(barDrawerToggle);
 126         barDrawerToggle = null;
 127         if (mViewPager != null)
 128             mViewPager.unregisterOnPageChangeCallback(pageChangeCallback);
 129         pageChangeCallback = null;
 130         super.onDestroy();
 131     }
 132     @Override
 133     protected void setupProfileColors() {
 134         final int profileColor = Data.retrieveCurrentThemeIdFromDb();
 135         Colors.setupTheme(this, profileColor);
 136         Colors.profileThemeId = profileColor;
 137     }
 138     @Override
 139     protected void onResume() {
 140         super.onResume();
 141         fabShouldShow();
 142     }
 143     @Override
 144     protected void onCreate(Bundle savedInstanceState) {
 145         Logger.debug("MainActivity", "onCreate()/entry");
 146         super.onCreate(savedInstanceState);
 147         Logger.debug("MainActivity", "onCreate()/after super");
 148         setContentView(R.layout.activity_main);
 149
 150         mainModel = new ViewModelProvider(this).get(MainModel.class);
 151
 152         fab = findViewById(R.id.btn_add_transaction);
 153         profileListHeadMore = findViewById(R.id.nav_profiles_start_edit);
 154         profileListHeadCancel = findViewById(R.id.nav_profiles_cancel_edit);
 155         LinearLayout profileListHeadMoreAndCancel =
 156                 findViewById(R.id.nav_profile_list_head_buttons);
 157         profileListHeadAddProfile = findViewById(R.id.nav_new_profile_button);
 158         drawer = findViewById(R.id.drawer_layout);
 159         bTransactionListCancelDownload = findViewById(R.id.transaction_list_cancel_download);
 160         mSectionsPagerAdapter = new SectionsPagerAdapter(this);
 161         mViewPager = findViewById(R.id.root_frame);
 162
 163         Bundle extra = getIntent().getBundleExtra(BUNDLE_SAVED_STATE);
 164         if (extra != null && savedInstanceState == null)
 165             savedInstanceState = extra;
 166
 167
 168         mToolbar = findViewById(R.id.toolbar);
 169         setSupportActionBar(mToolbar);
 170
 171         Data.observeProfile(this, this::onProfileChanged);
 172
 173         Data.profiles.observe(this, this::onProfileListChanged);
 174         Data.backgroundTaskProgress.observe(this, this::onRetrieveProgress);
 175         Data.backgroundTasksRunning.observe(this, this::onRetrieveRunningChanged);
 176
 177         if (barDrawerToggle == null) {
 178             barDrawerToggle = new ActionBarDrawerToggle(this, drawer, mToolbar,
 179                     R.string.navigation_drawer_open, R.string.navigation_drawer_close);
 180             drawer.addDrawerListener(barDrawerToggle);
 181         }
 182         barDrawerToggle.syncState();
 183
 184         try {
 185             PackageInfo pi = getApplicationContext().getPackageManager()
 186                                                     .getPackageInfo(getPackageName(), 0);
 187             ((TextView) findViewById(R.id.nav_upper).findViewById(
 188                     R.id.drawer_version_text)).setText(pi.versionName);
 189             ((TextView) findViewById(R.id.no_profiles_layout).findViewById(
 190                     R.id.drawer_version_text)).setText(pi.versionName);
 191         }
 192         catch (Exception e) {
 193             e.printStackTrace();
 194         }
 195
 196         markDrawerItemCurrent(R.id.nav_account_summary);
 197
 198         mViewPager.setAdapter(mSectionsPagerAdapter);
 199
 200         if (pageChangeCallback == null) {
 201             pageChangeCallback = new ViewPager2.OnPageChangeCallback() {
 202                 @Override
 203                 public void onPageSelected(int position) {
 204                     mCurrentPage = position;
 205                     switch (position) {
 206                         case 0:
 207                             markDrawerItemCurrent(R.id.nav_account_summary);
 208                             break;
 209                         case 1:
 210                             markDrawerItemCurrent(R.id.nav_latest_transactions);
 211                             break;
 212                         default:
 213                             Log.e("MainActivity",
 214                                     String.format("Unexpected page index %d", position));
 215                     }
 216
 217                     super.onPageSelected(position);
 218                 }
 219             };
 220             mViewPager.registerOnPageChangeCallback(pageChangeCallback);
 221         }
 222
 223         mCurrentPage = 0;
 224         if (savedInstanceState != null) {
 225             int currentPage = savedInstanceState.getInt(STATE_CURRENT_PAGE, -1);
 226             if (currentPage != -1) {
 227                 mCurrentPage = currentPage;
 228             }
 229             mainModel.getAccountFilter()
 230                      .setValue(savedInstanceState.getString(STATE_ACC_FILTER, null));
 231         }
 232
 233         findViewById(R.id.btn_no_profiles_add).setOnClickListener(
 234                 v -> startEditProfileActivity(null));
 235
 236         findViewById(R.id.btn_add_transaction).setOnClickListener(this::fabNewTransactionClicked);
 237
 238         findViewById(R.id.nav_new_profile_button).setOnClickListener(
 239                 v -> startEditProfileActivity(null));
 240
 241         findViewById(R.id.transaction_list_cancel_download).setOnClickListener(
 242                 this::onStopTransactionRefreshClick);
 243
 244         RecyclerView root = findViewById(R.id.nav_profile_list);
 245         if (root == null)
 246             throw new RuntimeException("Can't get hold on the transaction value view");
 247
 248         if (mProfileListAdapter == null)
 249             mProfileListAdapter = new ProfilesRecyclerViewAdapter();
 250         root.setAdapter(mProfileListAdapter);
 251
 252         mProfileListAdapter.editingProfiles.observe(this, newValue -> {
 253             if (newValue) {
 254                 profileListHeadMore.setVisibility(View.GONE);
 255                 profileListHeadCancel.setVisibility(View.VISIBLE);
 256                 profileListHeadAddProfile.setVisibility(View.VISIBLE);
 257                 if (drawer.isDrawerOpen(GravityCompat.START)) {
 258                     profileListHeadMore.startAnimation(
 259                             AnimationUtils.loadAnimation(MainActivity.this, R.anim.fade_out));
 260                     profileListHeadCancel.startAnimation(
 261                             AnimationUtils.loadAnimation(MainActivity.this, R.anim.fade_in));
 262                     profileListHeadAddProfile.startAnimation(
 263                             AnimationUtils.loadAnimation(MainActivity.this, R.anim.fade_in));
 264                 }
 265             }
 266             else {
 267                 profileListHeadCancel.setVisibility(View.GONE);
 268                 profileListHeadMore.setVisibility(View.VISIBLE);
 269                 profileListHeadAddProfile.setVisibility(View.GONE);
 270                 if (drawer.isDrawerOpen(GravityCompat.START)) {
 271                     profileListHeadCancel.startAnimation(
 272                             AnimationUtils.loadAnimation(MainActivity.this, R.anim.fade_out));
 273                     profileListHeadMore.startAnimation(
 274                             AnimationUtils.loadAnimation(MainActivity.this, R.anim.fade_in));
 275                     profileListHeadAddProfile.startAnimation(
 276                             AnimationUtils.loadAnimation(MainActivity.this, R.anim.fade_out));
 277                 }
 278             }
 279
 280             mProfileListAdapter.notifyDataSetChanged();
 281         });
 282
 283         LinearLayoutManager llm = new LinearLayoutManager(this);
 284
 285         llm.setOrientation(RecyclerView.VERTICAL);
 286         root.setLayoutManager(llm);
 287
 288         profileListHeadMore.setOnClickListener((v) -> mProfileListAdapter.flipEditingProfiles());
 289         profileListHeadCancel.setOnClickListener((v) -> mProfileListAdapter.flipEditingProfiles());
 290         profileListHeadMoreAndCancel.setOnClickListener(
 291                 (v) -> mProfileListAdapter.flipEditingProfiles());
 292         if (drawerListener == null) {
 293             drawerListener = new DrawerLayout.SimpleDrawerListener() {
 294                 @Override
 295                 public void onDrawerSlide(@NonNull View drawerView, float slideOffset) {
 296                     if (slideOffset > 0.2)
 297                         fabHide();
 298                 }
 299                 @Override
 300                 public void onDrawerClosed(View drawerView) {
 301                     super.onDrawerClosed(drawerView);
 302                     mProfileListAdapter.setAnimationsEnabled(false);
 303                     mProfileListAdapter.editingProfiles.setValue(false);
 304                     Data.drawerOpen.setValue(false);
 305                     fabShouldShow();
 306                 }
 307                 @Override
 308                 public void onDrawerOpened(View drawerView) {
 309                     super.onDrawerOpened(drawerView);
 310                     mProfileListAdapter.setAnimationsEnabled(true);
 311                     Data.drawerOpen.setValue(true);
 312                     fabHide();
 313                 }
 314             };
 315             drawer.addDrawerListener(drawerListener);
 316         }
 317
 318         Data.drawerOpen.observe(this, open -> {
 319             if (open)
 320                 drawer.open();
 321             else
 322                 drawer.close();
 323         });
 324
 325         mainModel.getUpdateError()
 326                  .observe(this, (error) -> {
 327                      if (error == null)
 328                          return;
 329
 330                      Snackbar.make(mViewPager, error, Snackbar.LENGTH_LONG)
 331                              .show();
 332                      mainModel.clearUpdateError();
 333                  });
 334         Data.locale.observe(this, l -> refreshLastUpdateInfo());
 335         Data.lastUpdateDate.observe(this, date -> refreshLastUpdateInfo());
 336         Data.lastUpdateTransactionCount.observe(this, date -> refreshLastUpdateInfo());
 337         Data.lastUpdateAccountCount.observe(this, date -> refreshLastUpdateInfo());
 338     }
 339     private void scheduleDataRetrievalIfStale(long lastUpdate) {
 340         long now = new Date().getTime();
 341         if ((lastUpdate == 0) || (now > (lastUpdate + (24 * 3600 * 1000)))) {
 342             if (lastUpdate == 0)
 343                 Logger.debug("db::", "WEB data never fetched. scheduling a fetch");
 344             else
 345                 Logger.debug("db", String.format(Locale.ENGLISH,
 346                         "WEB data last fetched at %1.3f and now is %1.3f. re-fetching",
 347                         lastUpdate / 1000f, now / 1000f));
 348
 349             mainModel.scheduleTransactionListRetrieval();
 350         }
 351     }
 352     private void createShortcuts(List<MobileLedgerProfile> list) {
 353         if (Build.VERSION.SDK_INT < Build.VERSION_CODES.N_MR1)
 354             return;
 355
 356         ShortcutManager sm = getSystemService(ShortcutManager.class);
 357         List<ShortcutInfo> shortcuts = new ArrayList<>();
 358         int i = 0;
 359         for (MobileLedgerProfile p : list) {
 360             if (shortcuts.size() >= sm.getMaxShortcutCountPerActivity())
 361                 break;
 362
 363             if (!p.isPostingPermitted())
 364                 continue;
 365
 366             final ShortcutInfo.Builder builder =
 367                     new ShortcutInfo.Builder(this, "new_transaction_" + p.getUuid());
 368             ShortcutInfo si = builder.setShortLabel(p.getName())
 369                                      .setIcon(Icon.createWithResource(this,
 370                                              R.drawable.thick_plus_icon))
 371                                      .setIntent(new Intent(Intent.ACTION_VIEW, null, this,
 372                                              NewTransactionActivity.class).putExtra("profile_uuid",
 373                                              p.getUuid()))
 374                                      .setRank(i)
 375                                      .build();
 376             shortcuts.add(si);
 377             i++;
 378         }
 379         sm.setDynamicShortcuts(shortcuts);
 380     }
 381     private void onProfileListChanged(List<MobileLedgerProfile> newList) {
 382         if ((newList == null) || newList.isEmpty()) {
 383             findViewById(R.id.no_profiles_layout).setVisibility(View.VISIBLE);
 384             findViewById(R.id.main_app_layout).setVisibility(View.GONE);
 385             return;
 386         }
 387
 388         findViewById(R.id.main_app_layout).setVisibility(View.VISIBLE);
 389         findViewById(R.id.no_profiles_layout).setVisibility(View.GONE);
 390
 391         findViewById(R.id.nav_profile_list).setMinimumHeight(
 392                 (int) (getResources().getDimension(R.dimen.thumb_row_height) * newList.size()));
 393
 394         Logger.debug("profiles", "profile list changed");
 395         mProfileListAdapter.notifyDataSetChanged();
 396
 397         createShortcuts(newList);
 398     }
 399     /**
 400      * called when the current profile has changed
 401      */
 402     private void onProfileChanged(MobileLedgerProfile profile) {
 403         if (this.profile == null) {
 404             if (profile == null)
 405                 return;
 406         }
 407         else {
 408             if (this.profile.equals(profile))
 409                 return;
 410         }
 411
 412         boolean haveProfile = profile != null;
 413
 414         if (haveProfile)
 415             setTitle(profile.getName());
 416         else
 417             setTitle(R.string.app_name);
 418
 419         mainModel.setProfile(profile);
 420
 421         this.profile = profile;
 422
 423         int newProfileTheme = haveProfile ? profile.getThemeHue() : -1;
 424         if (newProfileTheme != Colors.profileThemeId) {
 425             Logger.debug("profiles",
 426                     String.format(Locale.ENGLISH, "profile theme %d → %d", Colors.profileThemeId,
 427                             newProfileTheme));
 428             Colors.profileThemeId = newProfileTheme;
 429             profileThemeChanged();
 430             // profileThemeChanged would restart the activity, so no need to reload the
 431             // data sets below
 432             return;
 433         }
 434
 435         findViewById(R.id.no_profiles_layout).setVisibility(haveProfile ? View.GONE : View.VISIBLE);
 436         findViewById(R.id.pager_layout).setVisibility(haveProfile ? View.VISIBLE : View.VISIBLE);
 437
 438         mProfileListAdapter.notifyDataSetChanged();
 439
 440         mainModel.clearAccounts();
 441         mainModel.clearTransactions();
 442
 443         if (haveProfile) {
 444             mainModel.scheduleAccountListReload();
 445             Logger.debug("transactions", "requesting list reload");
 446             mainModel.scheduleTransactionListReload();
 447
 448             if (profile.isPostingPermitted()) {
 449                 mToolbar.setSubtitle(null);
 450                 fab.show();
 451             }
 452             else {
 453                 mToolbar.setSubtitle(R.string.profile_subtitle_read_only);
 454                 fab.hide();
 455             }
 456         }
 457         else {
 458             mToolbar.setSubtitle(null);
 459             fab.hide();
 460         }
 461
 462         updateLastUpdateTextFromDB();
 463     }
 464     private void profileThemeChanged() {
 465         // un-hook all observed LiveData
 466         Data.removeProfileObservers(this);
 467         Data.profiles.removeObservers(this);
 468         Data.lastUpdateTransactionCount.removeObservers(this);
 469         Data.lastUpdateAccountCount.removeObservers(this);
 470         Data.lastUpdateDate.removeObservers(this);
 471
 472         recreate();
 473     }
 474     public void startEditProfileActivity(MobileLedgerProfile profile) {
 475         Intent intent = new Intent(this, ProfileDetailActivity.class);
 476         Bundle args = new Bundle();
 477         if (profile != null) {
 478             int index = Data.getProfileIndex(profile);
 479             if (index != -1)
 480                 intent.putExtra(ProfileDetailFragment.ARG_ITEM_ID, index);
 481         }
 482         intent.putExtras(args);
 483         startActivity(intent, args);
 484     }
 485     public void fabNewTransactionClicked(View view) {
 486         Intent intent = new Intent(this, NewTransactionActivity.class);
 487         startActivity(intent);
 488         overridePendingTransition(R.anim.slide_in_up, R.anim.dummy);
 489     }
 490     public void markDrawerItemCurrent(int id) {
 491         TextView item = drawer.findViewById(id);
 492         item.setBackgroundColor(Colors.tableRowDarkBG);
 493
 494         LinearLayout actions = drawer.findViewById(R.id.nav_actions);
 495         for (int i = 0; i < actions.getChildCount(); i++) {
 496             View view = actions.getChildAt(i);
 497             if (view.getId() != id) {
 498                 view.setBackgroundColor(Color.TRANSPARENT);
 499             }
 500         }
 501     }
 502     public void onAccountSummaryClicked(View view) {
 503         drawer.closeDrawers();
 504
 505         showAccountSummaryFragment();
 506     }
 507     private void showAccountSummaryFragment() {
 508         mViewPager.setCurrentItem(0, true);
 509         mainModel.getAccountFilter()
 510                  .setValue(null);
 511     }
 512     public void onLatestTransactionsClicked(View view) {
 513         drawer.closeDrawers();
 514
 515         showTransactionsFragment(null);
 516     }
 517     public void showTransactionsFragment(String accName) {
 518         mainModel.getAccountFilter()
 519                  .setValue(accName);
 520         mViewPager.setCurrentItem(1, true);
 521     }
 522     public void showAccountTransactions(String accountName) {
 523         mBackMeansToAccountList = true;
 524         showTransactionsFragment(accountName);
 525     }
 526     @Override
 527     public void onBackPressed() {
 528         DrawerLayout drawer = findViewById(R.id.drawer_layout);
 529         if (drawer.isDrawerOpen(GravityCompat.START)) {
 530             drawer.closeDrawer(GravityCompat.START);
 531         }
 532         else {
 533             if (mBackMeansToAccountList && (mViewPager.getCurrentItem() == 1)) {
 534                 mainModel.getAccountFilter()
 535                          .setValue(null);
 536                 showAccountSummaryFragment();
 537                 mBackMeansToAccountList = false;
 538             }
 539             else {
 540                 Logger.debug("fragments", String.format(Locale.ENGLISH, "manager stack: %d",
 541                         getSupportFragmentManager().getBackStackEntryCount()));
 542
 543                 super.onBackPressed();
 544             }
 545         }
 546     }
 547     public void updateLastUpdateTextFromDB() {
 548         if (profile == null)
 549             return;
 550
 551         long lastUpdate = profile.getLongOption(MLDB.OPT_LAST_SCRAPE, 0L);
 552
 553         Logger.debug("transactions", String.format(Locale.ENGLISH, "Last update = %d", lastUpdate));
 554         if (lastUpdate == 0) {
 555             Data.lastUpdateDate.postValue(null);
 556         }
 557         else {
 558             Data.lastUpdateDate.postValue(new Date(lastUpdate));
 559         }
 560
 561         scheduleDataRetrievalIfStale(lastUpdate);
 562
 563     }
 564     private void refreshLastUpdateInfo() {
 565         final int formatFlags = DateUtils.FORMAT_SHOW_DATE | DateUtils.FORMAT_SHOW_YEAR |
 566                                 DateUtils.FORMAT_SHOW_TIME | DateUtils.FORMAT_NUMERIC_DATE;
 567         String templateForTransactions =
 568                 getResources().getString(R.string.transaction_count_summary);
 569         String templateForAccounts = getResources().getString(R.string.account_count_summary);
 570         Integer accountCount = Data.lastUpdateAccountCount.getValue();
 571         Integer transactionCount = Data.lastUpdateTransactionCount.getValue();
 572         Date lastUpdate = Data.lastUpdateDate.getValue();
 573         if (lastUpdate == null) {
 574             Data.lastTransactionsUpdateText.set("----");
 575             Data.lastAccountsUpdateText.set("----");
 576         }
 577         else {
 578             Data.lastTransactionsUpdateText.set(
 579                     String.format(Objects.requireNonNull(Data.locale.getValue()),
 580                             templateForTransactions,
 581                             transactionCount == null ? 0 : transactionCount,
 582                             DateUtils.formatDateTime(this, lastUpdate.getTime(), formatFlags)));
 583             Data.lastAccountsUpdateText.set(
 584                     String.format(Objects.requireNonNull(Data.locale.getValue()),
 585                             templateForAccounts, accountCount == null ? 0 : accountCount,
 586                             DateUtils.formatDateTime(this, lastUpdate.getTime(), formatFlags)));
 587         }
 588     }
 589     public void onStopTransactionRefreshClick(View view) {
 590         Logger.debug("interactive", "Cancelling transactions refresh");
 591         mainModel.stopTransactionsRetrieval();
 592         bTransactionListCancelDownload.setEnabled(false);
 593     }
 594     public void onRetrieveRunningChanged(Boolean running) {
 595         final View progressLayout = findViewById(R.id.transaction_progress_layout);
 596         if (running) {
 597             ProgressBar progressBar = findViewById(R.id.transaction_list_progress_bar);
 598             bTransactionListCancelDownload.setEnabled(true);
 599             ColorStateList csl = Colors.getColorStateList();
 600             progressBar.setIndeterminateTintList(csl);
 601             progressBar.setProgressTintList(csl);
 602             progressBar.setIndeterminate(true);
 603             if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
 604                 progressBar.setProgress(0, false);
 605             }
 606             else {
 607                 progressBar.setProgress(0);
 608             }
 609             progressLayout.setVisibility(View.VISIBLE);
 610         }
 611         else {
 612             progressLayout.setVisibility(View.GONE);
 613         }
 614     }
 615     public void onRetrieveProgress(RetrieveTransactionsTask.Progress progress) {
 616         ProgressBar progressBar = findViewById(R.id.transaction_list_progress_bar);
 617
 618         if (progress.getState() == RetrieveTransactionsTask.ProgressState.FINISHED) {
 619             Logger.debug("progress", "Done");
 620             findViewById(R.id.transaction_progress_layout).setVisibility(View.GONE);
 621
 622             mainModel.transactionRetrievalDone();
 623
 624             String error = progress.getError();
 625             if (error != null) {
 626                 if (error.equals(RetrieveTransactionsTask.Result.ERR_JSON_PARSER_ERROR))
 627                     error = getResources().getString(R.string.err_json_parser_error);
 628
 629                 AlertDialog.Builder builder = new AlertDialog.Builder(this);
 630                 builder.setMessage(error);
 631                 builder.setPositiveButton(R.string.btn_profile_options, (dialog, which) -> {
 632                     Logger.debug("error", "will start profile editor");
 633                     startEditProfileActivity(profile);
 634                 });
 635                 builder.create()
 636                        .show();
 637                 return;
 638             }
 639
 640             return;
 641         }
 642
 643
 644         bTransactionListCancelDownload.setEnabled(true);
 645 //        ColorStateList csl = Colors.getColorStateList();
 646 //        progressBar.setIndeterminateTintList(csl);
 647 //        progressBar.setProgressTintList(csl);
 648 //        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N)
 649 //            progressBar.setProgress(0, false);
 650 //        else
 651 //            progressBar.setProgress(0);
 652         findViewById(R.id.transaction_progress_layout).setVisibility(View.VISIBLE);
 653
 654         if (progress.isIndeterminate() || (progress.getTotal() <= 0)) {
 655             progressBar.setIndeterminate(true);
 656             Logger.debug("progress", "indeterminate");
 657         }
 658         else {
 659             if (progressBar.isIndeterminate()) {
 660                 progressBar.setIndeterminate(false);
 661             }
 662 //            Logger.debug("progress",
 663 //                    String.format(Locale.US, "%d/%d", progress.getProgress(), progress.getTotal
 664 //                    ()));
 665             progressBar.setMax(progress.getTotal());
 666             // for some reason animation doesn't work - no progress is shown (stick at 0)
 667             // on lineageOS 14.1 (Nougat, 7.1.2)
 668             if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N)
 669                 progressBar.setProgress(progress.getProgress(), false);
 670             else
 671                 progressBar.setProgress(progress.getProgress());
 672         }
 673     }
 674     public void fabShouldShow() {
 675         if ((profile != null) && profile.isPostingPermitted() && !drawer.isOpen())
 676             fab.show();
 677         else
 678             fabHide();
 679     }
 680     public void fabHide() {
 681         fab.hide();
 682     }
 683
 684     public static class SectionsPagerAdapter extends FragmentStateAdapter {
 685
 686         public SectionsPagerAdapter(@NonNull FragmentActivity fragmentActivity) {
 687             super(fragmentActivity);
 688         }
 689         @NotNull
 690         @Override
 691         public Fragment createFragment(int position) {
 692             Logger.debug("main",
 693                     String.format(Locale.ENGLISH, "Switching to fragment %d", position));
 694             switch (position) {
 695                 case 0:
 696 //                    debug("flow", "Creating account summary fragment");
 697                     return new AccountSummaryFragment();
 698                 case 1:
 699                     return new TransactionListFragment();
 700                 default:
 701                     throw new IllegalStateException(
 702                             String.format("Unexpected fragment index: " + "%d", position));
 703             }
 704         }
 705
 706         @Override
 707         public int getItemCount() {
 708             return 2;
 709         }
 710     }
 711 }