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