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

   1 /*
   2  * Copyright © 2020 Damyan Ivanov.
   3  * This file is part of MoLe.
   4  * MoLe is free software: you can distribute it and/or modify it
   5  * under the term of the GNU General Public License as published by
   6  * the Free Software Foundation, either version 3 of the License, or
   7  * (at your opinion), any later version.
   8  *
   9  * MoLe is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  12  * GNU General Public License terms for details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with MoLe. If not, see <https://www.gnu.org/licenses/>.
  16  */
  17
  18 package net.ktnx.mobileledger.ui.activity;
  19
  20 import android.content.Intent;
  21 import android.content.SharedPreferences;
  22 import android.content.pm.PackageInfo;
  23 import android.content.pm.ShortcutInfo;
  24 import android.content.pm.ShortcutManager;
  25 import android.content.res.ColorStateList;
  26 import android.graphics.Color;
  27 import android.graphics.drawable.Icon;
  28 import android.os.Build;
  29 import android.os.Bundle;
  30 import android.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
  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 static final String PREF_THEME_ID = "themeId";
  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         SharedPreferences prefs = getPreferences(MODE_PRIVATE);
 134         int profileColor = prefs.getInt(PREF_THEME_ID, -2);
 135         if (profileColor == -2)
 136             profileColor = Data.retrieveCurrentThemeIdFromDb();
 137         Colors.setupTheme(this, profileColor);
 138         Colors.profileThemeId = profileColor;
 139         storeThemeIdInPrefs(profileColor);
 140     }
 141     @Override
 142     protected void onResume() {
 143         super.onResume();
 144         fabShouldShow();
 145     }
 146     @Override
 147     protected void onCreate(Bundle savedInstanceState) {
 148         Logger.debug("MainActivity", "onCreate()/entry");
 149         super.onCreate(savedInstanceState);
 150         Logger.debug("MainActivity", "onCreate()/after super");
 151         setContentView(R.layout.activity_main);
 152
 153         mainModel = new ViewModelProvider(this).get(MainModel.class);
 154
 155         fab = findViewById(R.id.btn_add_transaction);
 156         profileListHeadMore = findViewById(R.id.nav_profiles_start_edit);
 157         profileListHeadCancel = findViewById(R.id.nav_profiles_cancel_edit);
 158         LinearLayout profileListHeadMoreAndCancel =
 159                 findViewById(R.id.nav_profile_list_head_buttons);
 160         profileListHeadAddProfile = findViewById(R.id.nav_new_profile_button);
 161         drawer = findViewById(R.id.drawer_layout);
 162         bTransactionListCancelDownload = findViewById(R.id.transaction_list_cancel_download);
 163         mSectionsPagerAdapter = new SectionsPagerAdapter(getSupportFragmentManager());
 164         mViewPager = findViewById(R.id.root_frame);
 165
 166         Bundle extra = getIntent().getBundleExtra(BUNDLE_SAVED_STATE);
 167         if (extra != null && savedInstanceState == null)
 168             savedInstanceState = extra;
 169
 170
 171         mToolbar = findViewById(R.id.toolbar);
 172         setSupportActionBar(mToolbar);
 173
 174         Data.observeProfile(this, this::onProfileChanged);
 175
 176         Data.profiles.observe(this, this::onProfileListChanged);
 177         Data.backgroundTaskProgress.observe(this, this::onRetrieveProgress);
 178         Data.backgroundTasksRunning.observe(this, this::onRetrieveRunningChanged);
 179
 180         if (barDrawerToggle == null) {
 181             barDrawerToggle = new ActionBarDrawerToggle(this, drawer, mToolbar,
 182                     R.string.navigation_drawer_open, R.string.navigation_drawer_close);
 183             drawer.addDrawerListener(barDrawerToggle);
 184         }
 185         barDrawerToggle.syncState();
 186
 187         try {
 188             PackageInfo pi = getApplicationContext().getPackageManager()
 189                                                     .getPackageInfo(getPackageName(), 0);
 190             ((TextView) findViewById(R.id.nav_upper).findViewById(
 191                     R.id.drawer_version_text)).setText(pi.versionName);
 192             ((TextView) findViewById(R.id.no_profiles_layout).findViewById(
 193                     R.id.drawer_version_text)).setText(pi.versionName);
 194         }
 195         catch (Exception e) {
 196             e.printStackTrace();
 197         }
 198
 199         markDrawerItemCurrent(R.id.nav_account_summary);
 200
 201         mViewPager.setAdapter(mSectionsPagerAdapter);
 202
 203         if (pageChangeListener == null) {
 204             pageChangeListener = new ViewPager.SimpleOnPageChangeListener() {
 205                 @Override
 206                 public void onPageSelected(int position) {
 207                     mCurrentPage = position;
 208                     switch (position) {
 209                         case 0:
 210                             markDrawerItemCurrent(R.id.nav_account_summary);
 211                             break;
 212                         case 1:
 213                             markDrawerItemCurrent(R.id.nav_latest_transactions);
 214                             break;
 215                         default:
 216                             Log.e("MainActivity",
 217                                     String.format("Unexpected page index %d", position));
 218                     }
 219
 220                     super.onPageSelected(position);
 221                 }
 222             };
 223             mViewPager.addOnPageChangeListener(pageChangeListener);
 224         }
 225
 226         mCurrentPage = 0;
 227         if (savedInstanceState != null) {
 228             int currentPage = savedInstanceState.getInt(STATE_CURRENT_PAGE, -1);
 229             if (currentPage != -1) {
 230                 mCurrentPage = currentPage;
 231             }
 232             mainModel.getAccountFilter()
 233                      .setValue(savedInstanceState.getString(STATE_ACC_FILTER, null));
 234         }
 235
 236         findViewById(R.id.btn_no_profiles_add).setOnClickListener(
 237                 v -> startEditProfileActivity(null));
 238
 239         findViewById(R.id.btn_add_transaction).setOnClickListener(this::fabNewTransactionClicked);
 240
 241         findViewById(R.id.nav_new_profile_button).setOnClickListener(
 242                 v -> startEditProfileActivity(null));
 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     }
 335     private void scheduleDataRetrievalIfStale(long lastUpdate) {
 336         long now = new Date().getTime();
 337         if ((lastUpdate == 0) || (now > (lastUpdate + (24 * 3600 * 1000)))) {
 338             if (lastUpdate == 0)
 339                 Logger.debug("db::", "WEB data never fetched. scheduling a fetch");
 340             else
 341                 Logger.debug("db", String.format(Locale.ENGLISH,
 342                         "WEB data last fetched at %1.3f and now is %1.3f. re-fetching",
 343                         lastUpdate / 1000f, now / 1000f));
 344
 345             mainModel.scheduleTransactionListRetrieval();
 346         }
 347     }
 348     private void createShortcuts(List<MobileLedgerProfile> list) {
 349         if (Build.VERSION.SDK_INT < Build.VERSION_CODES.N_MR1)
 350             return;
 351
 352         ShortcutManager sm = getSystemService(ShortcutManager.class);
 353         List<ShortcutInfo> shortcuts = new ArrayList<>();
 354         int i = 0;
 355         for (MobileLedgerProfile p : list) {
 356             if (shortcuts.size() >= sm.getMaxShortcutCountPerActivity())
 357                 break;
 358
 359             if (!p.isPostingPermitted())
 360                 continue;
 361
 362             final ShortcutInfo.Builder builder =
 363                     new ShortcutInfo.Builder(this, "new_transaction_" + p.getUuid());
 364             ShortcutInfo si = builder.setShortLabel(p.getName())
 365                                      .setIcon(Icon.createWithResource(this,
 366                                              R.drawable.thick_plus_icon))
 367                                      .setIntent(new Intent(Intent.ACTION_VIEW, null, this,
 368                                              NewTransactionActivity.class).putExtra("profile_uuid",
 369                                              p.getUuid()))
 370                                      .setRank(i)
 371                                      .build();
 372             shortcuts.add(si);
 373             i++;
 374         }
 375         sm.setDynamicShortcuts(shortcuts);
 376     }
 377     private void onProfileListChanged(List<MobileLedgerProfile> newList) {
 378         if ((newList == null) || newList.isEmpty()) {
 379             findViewById(R.id.no_profiles_layout).setVisibility(View.VISIBLE);
 380             findViewById(R.id.main_app_layout).setVisibility(View.GONE);
 381             return;
 382         }
 383
 384         findViewById(R.id.main_app_layout).setVisibility(View.VISIBLE);
 385         findViewById(R.id.no_profiles_layout).setVisibility(View.GONE);
 386
 387         findViewById(R.id.nav_profile_list).setMinimumHeight(
 388                 (int) (getResources().getDimension(R.dimen.thumb_row_height) * newList.size()));
 389
 390         Logger.debug("profiles", "profile list changed");
 391         mProfileListAdapter.notifyDataSetChanged();
 392
 393         createShortcuts(newList);
 394     }
 395     /**
 396      * called when the current profile has changed
 397      */
 398     private void onProfileChanged(MobileLedgerProfile profile) {
 399         if (this.profile == null) {
 400             if (profile == null)
 401                 return;
 402         }
 403         else {
 404             if (this.profile.equals(profile))
 405                 return;
 406         }
 407
 408         boolean haveProfile = profile != null;
 409
 410         if (haveProfile)
 411             setTitle(profile.getName());
 412         else
 413             setTitle(R.string.app_name);
 414
 415         mainModel.setProfile(profile);
 416
 417         this.profile = profile;
 418
 419         int newProfileTheme = haveProfile ? profile.getThemeHue() : -1;
 420         if (newProfileTheme != Colors.profileThemeId) {
 421             Logger.debug("profiles",
 422                     String.format(Locale.ENGLISH, "profile theme %d → %d", Colors.profileThemeId,
 423                             newProfileTheme));
 424             Colors.profileThemeId = newProfileTheme;
 425             profileThemeChanged();
 426             // profileThemeChanged would restart the activity, so no need to reload the
 427             // data sets below
 428             return;
 429         }
 430
 431         findViewById(R.id.no_profiles_layout).setVisibility(haveProfile ? View.GONE : View.VISIBLE);
 432         findViewById(R.id.pager_layout).setVisibility(haveProfile ? View.VISIBLE : View.VISIBLE);
 433
 434         mProfileListAdapter.notifyDataSetChanged();
 435
 436         mainModel.clearTransactions();
 437
 438         if (haveProfile) {
 439             mainModel.scheduleAccountListReload();
 440             Logger.debug("transactions", "requesting list reload");
 441             mainModel.scheduleTransactionListReload();
 442
 443             if (profile.isPostingPermitted()) {
 444                 mToolbar.setSubtitle(null);
 445                 fab.show();
 446             }
 447             else {
 448                 mToolbar.setSubtitle(R.string.profile_subtitle_read_only);
 449                 fab.hide();
 450             }
 451         }
 452         else {
 453             mToolbar.setSubtitle(null);
 454             fab.hide();
 455         }
 456
 457         updateLastUpdateTextFromDB();
 458     }
 459     private void profileThemeChanged() {
 460         storeThemeIdInPrefs(profile.getThemeHue());
 461
 462         // un-hook all observed LiveData
 463         Data.removeProfileObservers(this);
 464         Data.profiles.removeObservers(this);
 465         Data.lastUpdateLiveData.removeObservers(this);
 466
 467         recreate();
 468     }
 469     private void storeThemeIdInPrefs(int themeId) {
 470         // store the new theme id in the preferences
 471         SharedPreferences prefs = getPreferences(MODE_PRIVATE);
 472         SharedPreferences.Editor e = prefs.edit();
 473         e.putInt(PREF_THEME_ID, themeId);
 474         e.apply();
 475     }
 476     public void startEditProfileActivity(MobileLedgerProfile profile) {
 477         Intent intent = new Intent(this, ProfileDetailActivity.class);
 478         Bundle args = new Bundle();
 479         if (profile != null) {
 480             int index = Data.getProfileIndex(profile);
 481             if (index != -1)
 482                 intent.putExtra(ProfileDetailFragment.ARG_ITEM_ID, index);
 483         }
 484         intent.putExtras(args);
 485         startActivity(intent, args);
 486     }
 487     public void fabNewTransactionClicked(View view) {
 488         Intent intent = new Intent(this, NewTransactionActivity.class);
 489         startActivity(intent);
 490         overridePendingTransition(R.anim.slide_in_up, R.anim.dummy);
 491     }
 492     public void markDrawerItemCurrent(int id) {
 493         TextView item = drawer.findViewById(id);
 494         item.setBackgroundColor(Colors.tableRowDarkBG);
 495
 496         LinearLayout actions = drawer.findViewById(R.id.nav_actions);
 497         for (int i = 0; i < actions.getChildCount(); i++) {
 498             View view = actions.getChildAt(i);
 499             if (view.getId() != id) {
 500                 view.setBackgroundColor(Color.TRANSPARENT);
 501             }
 502         }
 503     }
 504     public void onAccountSummaryClicked(View view) {
 505         drawer.closeDrawers();
 506
 507         showAccountSummaryFragment();
 508     }
 509     private void showAccountSummaryFragment() {
 510         mViewPager.setCurrentItem(0, true);
 511         mainModel.getAccountFilter()
 512                  .setValue(null);
 513     }
 514     public void onLatestTransactionsClicked(View view) {
 515         drawer.closeDrawers();
 516
 517         showTransactionsFragment(null);
 518     }
 519     public void showTransactionsFragment(String accName) {
 520         mainModel.getAccountFilter()
 521                  .setValue(accName);
 522         mViewPager.setCurrentItem(1, true);
 523     }
 524     public void showAccountTransactions(String accountName) {
 525         mBackMeansToAccountList = true;
 526         showTransactionsFragment(accountName);
 527     }
 528     @Override
 529     public void onBackPressed() {
 530         DrawerLayout drawer = findViewById(R.id.drawer_layout);
 531         if (drawer.isDrawerOpen(GravityCompat.START)) {
 532             drawer.closeDrawer(GravityCompat.START);
 533         }
 534         else {
 535             if (mBackMeansToAccountList && (mViewPager.getCurrentItem() == 1)) {
 536                 mainModel.getAccountFilter()
 537                          .setValue(null);
 538                 showAccountSummaryFragment();
 539                 mBackMeansToAccountList = false;
 540             }
 541             else {
 542                 Logger.debug("fragments", String.format(Locale.ENGLISH, "manager stack: %d",
 543                         getSupportFragmentManager().getBackStackEntryCount()));
 544
 545                 super.onBackPressed();
 546             }
 547         }
 548     }
 549     public void updateLastUpdateTextFromDB() {
 550         if (profile == null)
 551             return;
 552
 553         long lastUpdate = profile.getLongOption(MLDB.OPT_LAST_SCRAPE, 0L);
 554
 555         Logger.debug("transactions", String.format(Locale.ENGLISH, "Last update = %d", lastUpdate));
 556         if (lastUpdate == 0) {
 557             Data.lastUpdateLiveData.postValue(null);
 558         }
 559         else {
 560             Data.lastUpdateLiveData.postValue(new Date(lastUpdate));
 561         }
 562
 563         // this is unfortunate, but it appears we need a two-stage rocket to make
 564         // a value reach a recycler view item holder. first stage is a regular
 565         // LiveData that can be observed by an activity (this).
 566         // the second stage forwards the changes, in the UI thread, to the
 567         // observable value, observed by the view holders.
 568         // view holders can't observe the LiveData because they don't have
 569         // access to lifecycle owners. oh, also the value is updated by a thread
 570         // so it must be tunnelled by an activity for it to reach the view
 571         // holders in the UI thread
 572         Data.lastUpdateLiveData.observe(this, date -> runOnUiThread(
 573                 () -> Data.lastUpdate.set((date == null) ? 0 : date.getTime())));
 574         scheduleDataRetrievalIfStale(lastUpdate);
 575
 576     }
 577     public void onStopTransactionRefreshClick(View view) {
 578         Logger.debug("interactive", "Cancelling transactions refresh");
 579         mainModel.stopTransactionsRetrieval();
 580         bTransactionListCancelDownload.setEnabled(false);
 581     }
 582     public void onRetrieveRunningChanged(Boolean running) {
 583         final View progressLayout = findViewById(R.id.transaction_progress_layout);
 584         if (running) {
 585             ProgressBar progressBar = findViewById(R.id.transaction_list_progress_bar);
 586             bTransactionListCancelDownload.setEnabled(true);
 587             ColorStateList csl = Colors.getColorStateList();
 588             progressBar.setIndeterminateTintList(csl);
 589             progressBar.setProgressTintList(csl);
 590             progressBar.setIndeterminate(true);
 591             if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
 592                 progressBar.setProgress(0, false);
 593             }
 594             else {
 595                 progressBar.setProgress(0);
 596             }
 597             progressLayout.setVisibility(View.VISIBLE);
 598         }
 599         else {
 600             progressLayout.setVisibility(View.GONE);
 601         }
 602     }
 603     public void onRetrieveProgress(RetrieveTransactionsTask.Progress progress) {
 604         ProgressBar progressBar = findViewById(R.id.transaction_list_progress_bar);
 605
 606         if (progress.getState() == RetrieveTransactionsTask.ProgressState.FINISHED) {
 607             Logger.debug("progress", "Done");
 608             findViewById(R.id.transaction_progress_layout).setVisibility(View.GONE);
 609
 610             mainModel.transactionRetrievalDone();
 611
 612             if (progress.getError() != null) {
 613                 Snackbar.make(mViewPager, progress.getError(), Snackbar.LENGTH_LONG)
 614                         .show();
 615                 return;
 616             }
 617
 618             return;
 619         }
 620
 621
 622         bTransactionListCancelDownload.setEnabled(true);
 623 //        ColorStateList csl = Colors.getColorStateList();
 624 //        progressBar.setIndeterminateTintList(csl);
 625 //        progressBar.setProgressTintList(csl);
 626 //        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N)
 627 //            progressBar.setProgress(0, false);
 628 //        else
 629 //            progressBar.setProgress(0);
 630         findViewById(R.id.transaction_progress_layout).setVisibility(View.VISIBLE);
 631
 632         if (progress.isIndeterminate() || (progress.getTotal() <= 0)) {
 633             progressBar.setIndeterminate(true);
 634             Logger.debug("progress", "indeterminate");
 635         }
 636         else {
 637             if (progressBar.isIndeterminate()) {
 638                 progressBar.setIndeterminate(false);
 639             }
 640 //            Logger.debug("progress",
 641 //                    String.format(Locale.US, "%d/%d", progress.getProgress(), progress.getTotal
 642 //                    ()));
 643             progressBar.setMax(progress.getTotal());
 644             // for some reason animation doesn't work - no progress is shown (stick at 0)
 645             // on lineageOS 14.1 (Nougat, 7.1.2)
 646             if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N)
 647                 progressBar.setProgress(progress.getProgress(), false);
 648             else
 649                 progressBar.setProgress(progress.getProgress());
 650         }
 651     }
 652     public void fabShouldShow() {
 653         if ((profile != null) && profile.isPostingPermitted() && !drawer.isOpen())
 654             fab.show();
 655         else
 656             fabHide();
 657     }
 658     public void fabHide() {
 659         fab.hide();
 660     }
 661
 662     public static class SectionsPagerAdapter extends FragmentPagerAdapter {
 663
 664         SectionsPagerAdapter(FragmentManager fm) {
 665             super(fm, BEHAVIOR_RESUME_ONLY_CURRENT_FRAGMENT);
 666         }
 667
 668         @NotNull
 669         @Override
 670         public Fragment getItem(int position) {
 671             Logger.debug("main",
 672                     String.format(Locale.ENGLISH, "Switching to fragment %d", position));
 673             switch (position) {
 674                 case 0:
 675 //                    debug("flow", "Creating account summary fragment");
 676                     return new AccountSummaryFragment();
 677                 case 1:
 678                     return new TransactionListFragment();
 679                 default:
 680                     throw new IllegalStateException(
 681                             String.format("Unexpected fragment index: " + "%d", position));
 682             }
 683         }
 684
 685         @Override
 686         public int getCount() {
 687             return 2;
 688         }
 689     }
 690 }