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.ViewGroup;
  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.lifecycle.ViewModelProvider;
  47 import androidx.recyclerview.widget.LinearLayoutManager;
  48 import androidx.recyclerview.widget.RecyclerView;
  49 import androidx.viewpager.widget.ViewPager;
  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.text.DateFormat;
  70 import java.util.ArrayList;
  71 import java.util.Date;
  72 import java.util.List;
  73 import java.util.Locale;
  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     private static final String PREF_THEME_ID = "themeId";
  84     DrawerLayout drawer;
  85     private View profileListHeadMore, profileListHeadCancel, profileListHeadAddProfile;
  86     private View bTransactionListCancelDownload;
  87     private SectionsPagerAdapter mSectionsPagerAdapter;
  88     private ViewPager mViewPager;
  89     private FloatingActionButton fab;
  90     private ProfilesRecyclerViewAdapter mProfileListAdapter;
  91     private int mCurrentPage;
  92     private boolean mBackMeansToAccountList = false;
  93     private Toolbar mToolbar;
  94     private DrawerLayout.SimpleDrawerListener drawerListener;
  95     private ActionBarDrawerToggle barDrawerToggle;
  96     private ViewPager.SimpleOnPageChangeListener pageChangeListener;
  97     private MobileLedgerProfile profile;
  98     private MainModel mainModel;
  99     @Override
 100     protected void onStart() {
 101         super.onStart();
 102
 103         Logger.debug("MainActivity", "onStart()");
 104
 105         mViewPager.setCurrentItem(mCurrentPage, false);
 106     }
 107     @Override
 108     protected void onSaveInstanceState(@NotNull Bundle outState) {
 109         super.onSaveInstanceState(outState);
 110         outState.putInt(STATE_CURRENT_PAGE, mViewPager.getCurrentItem());
 111         if (mainModel.getAccountFilter()
 112                      .getValue() != null)
 113             outState.putString(STATE_ACC_FILTER, mainModel.getAccountFilter()
 114                                                           .getValue());
 115     }
 116     @Override
 117     protected void onDestroy() {
 118         mSectionsPagerAdapter = null;
 119         RecyclerView root = findViewById(R.id.nav_profile_list);
 120         if (root != null)
 121             root.setAdapter(null);
 122         if (drawer != null)
 123             drawer.removeDrawerListener(drawerListener);
 124         drawerListener = null;
 125         if (drawer != null)
 126             drawer.removeDrawerListener(barDrawerToggle);
 127         barDrawerToggle = null;
 128         if (mViewPager != null)
 129             mViewPager.removeOnPageChangeListener(pageChangeListener);
 130         pageChangeListener = null;
 131         super.onDestroy();
 132     }
 133     @Override
 134     protected void setupProfileColors() {
 135         SharedPreferences prefs = getPreferences(MODE_PRIVATE);
 136         int profileColor = prefs.getInt(PREF_THEME_ID, -2);
 137         if (profileColor == -2)
 138             profileColor = Data.retrieveCurrentThemeIdFromDb();
 139         Colors.setupTheme(this, profileColor);
 140         Colors.profileThemeId = profileColor;
 141         storeThemeIdInPrefs(profileColor);
 142     }
 143     @Override
 144     protected void onResume() {
 145         super.onResume();
 146         fabShouldShow();
 147     }
 148     @Override
 149     protected void onCreate(Bundle savedInstanceState) {
 150         Logger.debug("MainActivity", "onCreate()/entry");
 151         super.onCreate(savedInstanceState);
 152         Logger.debug("MainActivity", "onCreate()/after super");
 153         setContentView(R.layout.activity_main);
 154
 155         mainModel = new ViewModelProvider(this).get(MainModel.class);
 156
 157         fab = findViewById(R.id.btn_add_transaction);
 158         profileListHeadMore = findViewById(R.id.nav_profiles_start_edit);
 159         profileListHeadCancel = findViewById(R.id.nav_profiles_cancel_edit);
 160         LinearLayout profileListHeadMoreAndCancel =
 161                 findViewById(R.id.nav_profile_list_head_buttons);
 162         profileListHeadAddProfile = findViewById(R.id.nav_new_profile_button);
 163         drawer = findViewById(R.id.drawer_layout);
 164         bTransactionListCancelDownload = findViewById(R.id.transaction_list_cancel_download);
 165         mSectionsPagerAdapter = new SectionsPagerAdapter(getSupportFragmentManager());
 166         mViewPager = findViewById(R.id.root_frame);
 167
 168         Bundle extra = getIntent().getBundleExtra(BUNDLE_SAVED_STATE);
 169         if (extra != null && savedInstanceState == null)
 170             savedInstanceState = extra;
 171
 172
 173         mToolbar = findViewById(R.id.toolbar);
 174         setSupportActionBar(mToolbar);
 175
 176         Data.observeProfile(this, this::onProfileChanged);
 177
 178         Data.profiles.observe(this, this::onProfileListChanged);
 179         Data.backgroundTaskProgress.observe(this, this::onRetrieveProgress);
 180         Data.backgroundTasksRunning.observe(this, this::onRetrieveRunningChanged);
 181
 182         if (barDrawerToggle == null) {
 183             barDrawerToggle = new ActionBarDrawerToggle(this, drawer, mToolbar,
 184                     R.string.navigation_drawer_open, R.string.navigation_drawer_close);
 185             drawer.addDrawerListener(barDrawerToggle);
 186         }
 187         barDrawerToggle.syncState();
 188
 189         try {
 190             PackageInfo pi = getApplicationContext().getPackageManager()
 191                                                     .getPackageInfo(getPackageName(), 0);
 192             ((TextView) findViewById(R.id.nav_upper).findViewById(
 193                     R.id.drawer_version_text)).setText(pi.versionName);
 194             ((TextView) findViewById(R.id.no_profiles_layout).findViewById(
 195                     R.id.drawer_version_text)).setText(pi.versionName);
 196         }
 197         catch (Exception e) {
 198             e.printStackTrace();
 199         }
 200
 201         markDrawerItemCurrent(R.id.nav_account_summary);
 202
 203         mViewPager.setAdapter(mSectionsPagerAdapter);
 204
 205         if (pageChangeListener == null) {
 206             pageChangeListener = new ViewPager.SimpleOnPageChangeListener() {
 207                 @Override
 208                 public void onPageSelected(int position) {
 209                     mCurrentPage = position;
 210                     switch (position) {
 211                         case 0:
 212                             markDrawerItemCurrent(R.id.nav_account_summary);
 213                             break;
 214                         case 1:
 215                             markDrawerItemCurrent(R.id.nav_latest_transactions);
 216                             break;
 217                         default:
 218                             Log.e("MainActivity",
 219                                     String.format("Unexpected page index %d", position));
 220                     }
 221
 222                     super.onPageSelected(position);
 223                 }
 224             };
 225             mViewPager.addOnPageChangeListener(pageChangeListener);
 226         }
 227
 228         mCurrentPage = 0;
 229         if (savedInstanceState != null) {
 230             int currentPage = savedInstanceState.getInt(STATE_CURRENT_PAGE, -1);
 231             if (currentPage != -1) {
 232                 mCurrentPage = currentPage;
 233             }
 234             mainModel.getAccountFilter()
 235                      .setValue(savedInstanceState.getString(STATE_ACC_FILTER, null));
 236         }
 237
 238         mainModel.lastUpdateDate.observe(this, this::updateLastUpdateDisplay);
 239
 240         findViewById(R.id.btn_no_profiles_add).setOnClickListener(
 241                 v -> startEditProfileActivity(null));
 242
 243         findViewById(R.id.btn_add_transaction).setOnClickListener(this::fabNewTransactionClicked);
 244
 245         findViewById(R.id.nav_new_profile_button).setOnClickListener(
 246                 v -> startEditProfileActivity(null));
 247
 248         RecyclerView root = findViewById(R.id.nav_profile_list);
 249         if (root == null)
 250             throw new RuntimeException("Can't get hold on the transaction value view");
 251
 252         if (mProfileListAdapter == null)
 253             mProfileListAdapter = new ProfilesRecyclerViewAdapter();
 254         root.setAdapter(mProfileListAdapter);
 255
 256         mProfileListAdapter.editingProfiles.observe(this, newValue -> {
 257             if (newValue) {
 258                 profileListHeadMore.setVisibility(View.GONE);
 259                 profileListHeadCancel.setVisibility(View.VISIBLE);
 260                 profileListHeadAddProfile.setVisibility(View.VISIBLE);
 261                 if (drawer.isDrawerOpen(GravityCompat.START)) {
 262                     profileListHeadMore.startAnimation(
 263                             AnimationUtils.loadAnimation(MainActivity.this, R.anim.fade_out));
 264                     profileListHeadCancel.startAnimation(
 265                             AnimationUtils.loadAnimation(MainActivity.this, R.anim.fade_in));
 266                     profileListHeadAddProfile.startAnimation(
 267                             AnimationUtils.loadAnimation(MainActivity.this, R.anim.fade_in));
 268                 }
 269             }
 270             else {
 271                 profileListHeadCancel.setVisibility(View.GONE);
 272                 profileListHeadMore.setVisibility(View.VISIBLE);
 273                 profileListHeadAddProfile.setVisibility(View.GONE);
 274                 if (drawer.isDrawerOpen(GravityCompat.START)) {
 275                     profileListHeadCancel.startAnimation(
 276                             AnimationUtils.loadAnimation(MainActivity.this, R.anim.fade_out));
 277                     profileListHeadMore.startAnimation(
 278                             AnimationUtils.loadAnimation(MainActivity.this, R.anim.fade_in));
 279                     profileListHeadAddProfile.startAnimation(
 280                             AnimationUtils.loadAnimation(MainActivity.this, R.anim.fade_out));
 281                 }
 282             }
 283
 284             mProfileListAdapter.notifyDataSetChanged();
 285         });
 286
 287         LinearLayoutManager llm = new LinearLayoutManager(this);
 288
 289         llm.setOrientation(RecyclerView.VERTICAL);
 290         root.setLayoutManager(llm);
 291
 292         profileListHeadMore.setOnClickListener((v) -> mProfileListAdapter.flipEditingProfiles());
 293         profileListHeadCancel.setOnClickListener((v) -> mProfileListAdapter.flipEditingProfiles());
 294         profileListHeadMoreAndCancel.setOnClickListener(
 295                 (v) -> mProfileListAdapter.flipEditingProfiles());
 296         if (drawerListener == null) {
 297             drawerListener = new DrawerLayout.SimpleDrawerListener() {
 298                 @Override
 299                 public void onDrawerSlide(@NonNull View drawerView, float slideOffset) {
 300                     if (slideOffset > 0.2)
 301                         fabHide();
 302                 }
 303                 @Override
 304                 public void onDrawerClosed(View drawerView) {
 305                     super.onDrawerClosed(drawerView);
 306                     mProfileListAdapter.setAnimationsEnabled(false);
 307                     mProfileListAdapter.editingProfiles.setValue(false);
 308                     Data.drawerOpen.setValue(false);
 309                     fabShouldShow();
 310                 }
 311                 @Override
 312                 public void onDrawerOpened(View drawerView) {
 313                     super.onDrawerOpened(drawerView);
 314                     mProfileListAdapter.setAnimationsEnabled(true);
 315                     Data.drawerOpen.setValue(true);
 316                     fabHide();
 317                 }
 318             };
 319             drawer.addDrawerListener(drawerListener);
 320         }
 321
 322         Data.drawerOpen.observe(this, open -> {
 323             if (open)
 324                 drawer.open();
 325             else
 326                 drawer.close();
 327         });
 328
 329         mainModel.getUpdateError()
 330                  .observe(this, (error) -> {
 331                      if (error == null)
 332                          return;
 333
 334                      Snackbar.make(mViewPager, error, Snackbar.LENGTH_LONG)
 335                              .show();
 336                      mainModel.clearUpdateError();
 337                  });
 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.clearTransactions();
 441
 442         if (haveProfile) {
 443             mainModel.scheduleAccountListReload();
 444             Logger.debug("transactions", "requesting list reload");
 445             mainModel.scheduleTransactionListReload();
 446
 447             if (profile.isPostingPermitted()) {
 448                 mToolbar.setSubtitle(null);
 449                 fab.show();
 450             }
 451             else {
 452                 mToolbar.setSubtitle(R.string.profile_subtitle_read_only);
 453                 fab.hide();
 454             }
 455         }
 456         else {
 457             mToolbar.setSubtitle(null);
 458             fab.hide();
 459         }
 460
 461         updateLastUpdateTextFromDB();
 462     }
 463     private void updateLastUpdateDisplay(Date newValue) {
 464         ViewGroup l = findViewById(R.id.transactions_last_update_layout);
 465         TextView v = findViewById(R.id.transactions_last_update);
 466         if (newValue == null) {
 467             l.setVisibility(View.INVISIBLE);
 468             Logger.debug("main", "no last update date :(");
 469         }
 470         else {
 471             final String text = DateFormat.getDateTimeInstance()
 472                                           .format(newValue);
 473             v.setText(text);
 474             l.setVisibility(View.VISIBLE);
 475             Logger.debug("main", String.format("Date formatted: %s", text));
 476         }
 477     }
 478     private void profileThemeChanged() {
 479         storeThemeIdInPrefs(profile.getThemeHue());
 480
 481         // un-hook all observed LiveData
 482         Data.removeProfileObservers(this);
 483         Data.profiles.removeObservers(this);
 484         mainModel.lastUpdateDate.removeObservers(this);
 485
 486         recreate();
 487     }
 488     private void storeThemeIdInPrefs(int themeId) {
 489         // store the new theme id in the preferences
 490         SharedPreferences prefs = getPreferences(MODE_PRIVATE);
 491         SharedPreferences.Editor e = prefs.edit();
 492         e.putInt(PREF_THEME_ID, themeId);
 493         e.apply();
 494     }
 495     public void startEditProfileActivity(MobileLedgerProfile profile) {
 496         Intent intent = new Intent(this, ProfileDetailActivity.class);
 497         Bundle args = new Bundle();
 498         if (profile != null) {
 499             int index = Data.getProfileIndex(profile);
 500             if (index != -1)
 501                 intent.putExtra(ProfileDetailFragment.ARG_ITEM_ID, index);
 502         }
 503         intent.putExtras(args);
 504         startActivity(intent, args);
 505     }
 506     public void fabNewTransactionClicked(View view) {
 507         Intent intent = new Intent(this, NewTransactionActivity.class);
 508         startActivity(intent);
 509         overridePendingTransition(R.anim.slide_in_up, R.anim.dummy);
 510     }
 511     public void markDrawerItemCurrent(int id) {
 512         TextView item = drawer.findViewById(id);
 513         item.setBackgroundColor(Colors.tableRowDarkBG);
 514
 515         LinearLayout actions = drawer.findViewById(R.id.nav_actions);
 516         for (int i = 0; i < actions.getChildCount(); i++) {
 517             View view = actions.getChildAt(i);
 518             if (view.getId() != id) {
 519                 view.setBackgroundColor(Color.TRANSPARENT);
 520             }
 521         }
 522     }
 523     public void onAccountSummaryClicked(View view) {
 524         drawer.closeDrawers();
 525
 526         showAccountSummaryFragment();
 527     }
 528     private void showAccountSummaryFragment() {
 529         mViewPager.setCurrentItem(0, true);
 530         mainModel.getAccountFilter()
 531                  .setValue(null);
 532     }
 533     public void onLatestTransactionsClicked(View view) {
 534         drawer.closeDrawers();
 535
 536         showTransactionsFragment(null);
 537     }
 538     public void showTransactionsFragment(String accName) {
 539         mainModel.getAccountFilter()
 540                  .setValue(accName);
 541         mViewPager.setCurrentItem(1, true);
 542     }
 543     public void showAccountTransactions(String accountName) {
 544         mBackMeansToAccountList = true;
 545         showTransactionsFragment(accountName);
 546     }
 547     @Override
 548     public void onBackPressed() {
 549         DrawerLayout drawer = findViewById(R.id.drawer_layout);
 550         if (drawer.isDrawerOpen(GravityCompat.START)) {
 551             drawer.closeDrawer(GravityCompat.START);
 552         }
 553         else {
 554             if (mBackMeansToAccountList && (mViewPager.getCurrentItem() == 1)) {
 555                 mainModel.getAccountFilter()
 556                          .setValue(null);
 557                 showAccountSummaryFragment();
 558                 mBackMeansToAccountList = false;
 559             }
 560             else {
 561                 Logger.debug("fragments", String.format(Locale.ENGLISH, "manager stack: %d",
 562                         getSupportFragmentManager().getBackStackEntryCount()));
 563
 564                 super.onBackPressed();
 565             }
 566         }
 567     }
 568     public void updateLastUpdateTextFromDB() {
 569         if (profile == null)
 570             return;
 571
 572         long last_update = profile.getLongOption(MLDB.OPT_LAST_SCRAPE, 0L);
 573
 574         Logger.debug("transactions",
 575                 String.format(Locale.ENGLISH, "Last update = %d", last_update));
 576         if (last_update == 0) {
 577             mainModel.lastUpdateDate.postValue(null);
 578         }
 579         else {
 580             mainModel.lastUpdateDate.postValue(new Date(last_update));
 581         }
 582         scheduleDataRetrievalIfStale(last_update);
 583
 584     }
 585     public void onStopTransactionRefreshClick(View view) {
 586         Logger.debug("interactive", "Cancelling transactions refresh");
 587         mainModel.stopTransactionsRetrieval();
 588         bTransactionListCancelDownload.setEnabled(false);
 589     }
 590     public void onRetrieveRunningChanged(Boolean running) {
 591         final View progressLayout = findViewById(R.id.transaction_progress_layout);
 592         if (running) {
 593             ProgressBar progressBar = findViewById(R.id.transaction_list_progress_bar);
 594             bTransactionListCancelDownload.setEnabled(true);
 595             ColorStateList csl = Colors.getColorStateList();
 596             progressBar.setIndeterminateTintList(csl);
 597             progressBar.setProgressTintList(csl);
 598             progressBar.setIndeterminate(true);
 599             if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
 600                 progressBar.setProgress(0, false);
 601             }
 602             else {
 603                 progressBar.setProgress(0);
 604             }
 605             progressLayout.setVisibility(View.VISIBLE);
 606         }
 607         else {
 608             progressLayout.setVisibility(View.GONE);
 609         }
 610     }
 611     public void onRetrieveProgress(RetrieveTransactionsTask.Progress progress) {
 612         ProgressBar progressBar = findViewById(R.id.transaction_list_progress_bar);
 613
 614         if (progress.getState() == RetrieveTransactionsTask.ProgressState.FINISHED) {
 615             Logger.debug("progress", "Done");
 616             findViewById(R.id.transaction_progress_layout).setVisibility(View.GONE);
 617
 618             mainModel.transactionRetrievalDone();
 619
 620             if (progress.getError() != null) {
 621                 Snackbar.make(mViewPager, progress.getError(), Snackbar.LENGTH_LONG)
 622                         .show();
 623                 return;
 624             }
 625
 626             return;
 627         }
 628
 629
 630         bTransactionListCancelDownload.setEnabled(true);
 631 //        ColorStateList csl = Colors.getColorStateList();
 632 //        progressBar.setIndeterminateTintList(csl);
 633 //        progressBar.setProgressTintList(csl);
 634 //        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N)
 635 //            progressBar.setProgress(0, false);
 636 //        else
 637 //            progressBar.setProgress(0);
 638         findViewById(R.id.transaction_progress_layout).setVisibility(View.VISIBLE);
 639
 640         if (progress.isIndeterminate() || (progress.getTotal() <= 0)) {
 641             progressBar.setIndeterminate(true);
 642             Logger.debug("progress", "indeterminate");
 643         }
 644         else {
 645             if (progressBar.isIndeterminate()) {
 646                 progressBar.setIndeterminate(false);
 647             }
 648 //            Logger.debug("progress",
 649 //                    String.format(Locale.US, "%d/%d", progress.getProgress(), progress.getTotal
 650 //                    ()));
 651             progressBar.setMax(progress.getTotal());
 652             // for some reason animation doesn't work - no progress is shown (stick at 0)
 653             // on lineageOS 14.1 (Nougat, 7.1.2)
 654             if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N)
 655                 progressBar.setProgress(progress.getProgress(), false);
 656             else
 657                 progressBar.setProgress(progress.getProgress());
 658         }
 659     }
 660     public void fabShouldShow() {
 661         if ((profile != null) && profile.isPostingPermitted() && !drawer.isOpen())
 662             fab.show();
 663         else
 664             fabHide();
 665     }
 666     public void fabHide() {
 667         fab.hide();
 668     }
 669
 670     public static class SectionsPagerAdapter extends FragmentPagerAdapter {
 671
 672         SectionsPagerAdapter(FragmentManager fm) {
 673             super(fm, BEHAVIOR_RESUME_ONLY_CURRENT_FRAGMENT);
 674         }
 675
 676         @NotNull
 677         @Override
 678         public Fragment getItem(int position) {
 679             Logger.debug("main",
 680                     String.format(Locale.ENGLISH, "Switching to fragment %d", position));
 681             switch (position) {
 682                 case 0:
 683 //                    debug("flow", "Creating account summary fragment");
 684                     return new AccountSummaryFragment();
 685                 case 1:
 686                     return new TransactionListFragment();
 687                 default:
 688                     throw new IllegalStateException(
 689                             String.format("Unexpected fragment index: " + "%d", position));
 690             }
 691         }
 692
 693         @Override
 694         public int getCount() {
 695             return 2;
 696         }
 697     }
 698 }