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

   1 /*
   2  * Copyright © 2021 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.Context;
  21 import android.content.Intent;
  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.text.format.DateUtils;
  31 import android.util.Log;
  32 import android.view.View;
  33 import android.view.animation.AnimationUtils;
  34 import android.widget.TextView;
  35
  36 import androidx.annotation.NonNull;
  37 import androidx.annotation.Nullable;
  38 import androidx.appcompat.app.ActionBarDrawerToggle;
  39 import androidx.appcompat.app.AlertDialog;
  40 import androidx.core.view.GravityCompat;
  41 import androidx.drawerlayout.widget.DrawerLayout;
  42 import androidx.fragment.app.Fragment;
  43 import androidx.fragment.app.FragmentActivity;
  44 import androidx.lifecycle.ViewModelProvider;
  45 import androidx.recyclerview.widget.LinearLayoutManager;
  46 import androidx.recyclerview.widget.RecyclerView;
  47 import androidx.viewpager2.adapter.FragmentStateAdapter;
  48 import androidx.viewpager2.widget.ViewPager2;
  49
  50 import com.google.android.material.snackbar.Snackbar;
  51
  52 import net.ktnx.mobileledger.R;
  53 import net.ktnx.mobileledger.async.RetrieveTransactionsTask;
  54 import net.ktnx.mobileledger.databinding.ActivityMainBinding;
  55 import net.ktnx.mobileledger.db.DB;
  56 import net.ktnx.mobileledger.db.Option;
  57 import net.ktnx.mobileledger.db.Profile;
  58 import net.ktnx.mobileledger.model.Data;
  59 import net.ktnx.mobileledger.ui.FabManager;
  60 import net.ktnx.mobileledger.ui.MainModel;
  61 import net.ktnx.mobileledger.ui.account_summary.AccountSummaryFragment;
  62 import net.ktnx.mobileledger.ui.new_transaction.NewTransactionActivity;
  63 import net.ktnx.mobileledger.ui.profiles.ProfileDetailActivity;
  64 import net.ktnx.mobileledger.ui.profiles.ProfilesRecyclerViewAdapter;
  65 import net.ktnx.mobileledger.ui.templates.TemplatesActivity;
  66 import net.ktnx.mobileledger.ui.transaction_list.TransactionListFragment;
  67 import net.ktnx.mobileledger.utils.Colors;
  68 import net.ktnx.mobileledger.utils.Logger;
  69
  70 import org.jetbrains.annotations.NotNull;
  71
  72 import java.util.ArrayList;
  73 import java.util.Date;
  74 import java.util.List;
  75 import java.util.Locale;
  76 import java.util.Objects;
  77
  78 /*
  79  * TODO: reports
  80  *  */
  81
  82 public class MainActivity extends ProfileThemedActivity implements FabManager.FabHandler {
  83     public static final String TAG = "main-act";
  84     public static final String STATE_CURRENT_PAGE = "current_page";
  85     public static final String BUNDLE_SAVED_STATE = "bundle_savedState";
  86     public static final String STATE_ACC_FILTER = "account_filter";
  87     private static final boolean FAB_HIDDEN = false;
  88     private static final boolean FAB_SHOWN = true;
  89     private SectionsPagerAdapter mSectionsPagerAdapter;
  90     private ProfilesRecyclerViewAdapter mProfileListAdapter;
  91     private int mCurrentPage;
  92     private boolean mBackMeansToAccountList = false;
  93     private DrawerLayout.SimpleDrawerListener drawerListener;
  94     private ActionBarDrawerToggle barDrawerToggle;
  95     private ViewPager2.OnPageChangeCallback pageChangeCallback;
  96     private Profile profile;
  97     private MainModel mainModel;
  98     private ActivityMainBinding b;
  99     private int fabVerticalOffset;
 100     private FabManager fabManager;
 101     @Override
 102     protected void onStart() {
 103         super.onStart();
 104
 105         Logger.debug(TAG, "onStart()");
 106
 107         b.mainPager.setCurrentItem(mCurrentPage, false);
 108     }
 109     @Override
 110     protected void onSaveInstanceState(@NotNull Bundle outState) {
 111         super.onSaveInstanceState(outState);
 112         outState.putInt(STATE_CURRENT_PAGE, b.mainPager.getCurrentItem());
 113         if (mainModel.getAccountFilter()
 114                      .getValue() != null)
 115             outState.putString(STATE_ACC_FILTER, mainModel.getAccountFilter()
 116                                                           .getValue());
 117     }
 118     @Override
 119     protected void onDestroy() {
 120         mSectionsPagerAdapter = null;
 121         b.navProfileList.setAdapter(null);
 122         b.drawerLayout.removeDrawerListener(drawerListener);
 123         drawerListener = null;
 124         b.drawerLayout.removeDrawerListener(barDrawerToggle);
 125         barDrawerToggle = null;
 126         b.mainPager.unregisterOnPageChangeCallback(pageChangeCallback);
 127         pageChangeCallback = null;
 128         super.onDestroy();
 129     }
 130     @Override
 131     protected void onResume() {
 132         super.onResume();
 133         fabShouldShow();
 134     }
 135     @Override
 136     protected void onCreate(Bundle savedInstanceState) {
 137         Logger.debug(TAG, "onCreate()/entry");
 138         super.onCreate(savedInstanceState);
 139         Logger.debug(TAG, "onCreate()/after super");
 140         b = ActivityMainBinding.inflate(getLayoutInflater());
 141         setContentView(b.getRoot());
 142
 143         mainModel = new ViewModelProvider(this).get(MainModel.class);
 144
 145         mSectionsPagerAdapter = new SectionsPagerAdapter(this);
 146
 147         Bundle extra = getIntent().getBundleExtra(BUNDLE_SAVED_STATE);
 148         if (extra != null && savedInstanceState == null)
 149             savedInstanceState = extra;
 150
 151
 152         setSupportActionBar(b.toolbar);
 153
 154         Data.observeProfile(this, this::onProfileChanged);
 155
 156         Data.profiles.observe(this, this::onProfileListChanged);
 157
 158         Data.backgroundTaskProgress.observe(this, this::onRetrieveProgress);
 159         Data.backgroundTasksRunning.observe(this, this::onRetrieveRunningChanged);
 160
 161         if (barDrawerToggle == null) {
 162             barDrawerToggle = new ActionBarDrawerToggle(this, b.drawerLayout, b.toolbar,
 163                     R.string.navigation_drawer_open, R.string.navigation_drawer_close);
 164             b.drawerLayout.addDrawerListener(barDrawerToggle);
 165         }
 166         barDrawerToggle.syncState();
 167
 168         try {
 169             PackageInfo pi = getApplicationContext().getPackageManager()
 170                                                     .getPackageInfo(getPackageName(), 0);
 171             ((TextView) b.navUpper.findViewById(R.id.drawer_version_text)).setText(pi.versionName);
 172             ((TextView) b.noProfilesLayout.findViewById(R.id.drawer_version_text)).setText(
 173                     pi.versionName);
 174         }
 175         catch (Exception e) {
 176             e.printStackTrace();
 177         }
 178
 179         markDrawerItemCurrent(R.id.nav_account_summary);
 180
 181         b.mainPager.setAdapter(mSectionsPagerAdapter);
 182         b.mainPager.setOffscreenPageLimit(1);
 183
 184         if (pageChangeCallback == null) {
 185             pageChangeCallback = new ViewPager2.OnPageChangeCallback() {
 186                 @Override
 187                 public void onPageSelected(int position) {
 188                     mCurrentPage = position;
 189                     switch (position) {
 190                         case 0:
 191                             markDrawerItemCurrent(R.id.nav_account_summary);
 192                             break;
 193                         case 1:
 194                             markDrawerItemCurrent(R.id.nav_latest_transactions);
 195                             break;
 196                         default:
 197                             Log.e(TAG, String.format("Unexpected page index %d", position));
 198                     }
 199
 200                     super.onPageSelected(position);
 201                 }
 202             };
 203             b.mainPager.registerOnPageChangeCallback(pageChangeCallback);
 204         }
 205
 206         mCurrentPage = 0;
 207         if (savedInstanceState != null) {
 208             int currentPage = savedInstanceState.getInt(STATE_CURRENT_PAGE, -1);
 209             if (currentPage != -1) {
 210                 mCurrentPage = currentPage;
 211             }
 212             mainModel.getAccountFilter()
 213                      .setValue(savedInstanceState.getString(STATE_ACC_FILTER, null));
 214         }
 215
 216         b.btnNoProfilesAdd.setOnClickListener(v -> ProfileDetailActivity.start(this, null));
 217
 218         b.btnAddTransaction.setOnClickListener(this::fabNewTransactionClicked);
 219
 220         b.navNewProfileButton.setOnClickListener(v -> ProfileDetailActivity.start(this, null));
 221
 222         b.transactionListCancelDownload.setOnClickListener(this::onStopTransactionRefreshClick);
 223
 224         if (mProfileListAdapter == null)
 225             mProfileListAdapter = new ProfilesRecyclerViewAdapter();
 226         b.navProfileList.setAdapter(mProfileListAdapter);
 227
 228         mProfileListAdapter.editingProfiles.observe(this, newValue -> {
 229             if (newValue) {
 230                 b.navProfilesStartEdit.setVisibility(View.GONE);
 231                 b.navProfilesCancelEdit.setVisibility(View.VISIBLE);
 232                 b.navNewProfileButton.setVisibility(View.VISIBLE);
 233                 if (b.drawerLayout.isDrawerOpen(GravityCompat.START)) {
 234                     b.navProfilesStartEdit.startAnimation(
 235                             AnimationUtils.loadAnimation(MainActivity.this, R.anim.fade_out));
 236                     b.navProfilesCancelEdit.startAnimation(
 237                             AnimationUtils.loadAnimation(MainActivity.this, R.anim.fade_in));
 238                     b.navNewProfileButton.startAnimation(
 239                             AnimationUtils.loadAnimation(MainActivity.this, R.anim.fade_in));
 240                 }
 241             }
 242             else {
 243                 b.navProfilesCancelEdit.setVisibility(View.GONE);
 244                 b.navProfilesStartEdit.setVisibility(View.VISIBLE);
 245                 b.navNewProfileButton.setVisibility(View.GONE);
 246                 if (b.drawerLayout.isDrawerOpen(GravityCompat.START)) {
 247                     b.navProfilesCancelEdit.startAnimation(
 248                             AnimationUtils.loadAnimation(MainActivity.this, R.anim.fade_out));
 249                     b.navProfilesStartEdit.startAnimation(
 250                             AnimationUtils.loadAnimation(MainActivity.this, R.anim.fade_in));
 251                     b.navNewProfileButton.startAnimation(
 252                             AnimationUtils.loadAnimation(MainActivity.this, R.anim.fade_out));
 253                 }
 254             }
 255
 256             mProfileListAdapter.notifyDataSetChanged();
 257         });
 258
 259         fabManager = new FabManager(b.btnAddTransaction);
 260
 261         LinearLayoutManager llm = new LinearLayoutManager(this);
 262
 263         llm.setOrientation(RecyclerView.VERTICAL);
 264         b.navProfileList.setLayoutManager(llm);
 265
 266         b.navProfilesStartEdit.setOnClickListener((v) -> mProfileListAdapter.flipEditingProfiles());
 267         b.navProfilesCancelEdit.setOnClickListener(
 268                 (v) -> mProfileListAdapter.flipEditingProfiles());
 269         b.navProfileListHeadButtons.setOnClickListener(
 270                 (v) -> mProfileListAdapter.flipEditingProfiles());
 271         if (drawerListener == null) {
 272             drawerListener = new DrawerLayout.SimpleDrawerListener() {
 273                 @Override
 274                 public void onDrawerSlide(@NonNull View drawerView, float slideOffset) {
 275                     if (slideOffset > 0.2)
 276                         fabManager.hideFab();
 277                 }
 278                 @Override
 279                 public void onDrawerClosed(View drawerView) {
 280                     super.onDrawerClosed(drawerView);
 281                     mProfileListAdapter.setAnimationsEnabled(false);
 282                     mProfileListAdapter.editingProfiles.setValue(false);
 283                     Data.drawerOpen.setValue(false);
 284                     fabShouldShow();
 285                 }
 286                 @Override
 287                 public void onDrawerOpened(View drawerView) {
 288                     super.onDrawerOpened(drawerView);
 289                     mProfileListAdapter.setAnimationsEnabled(true);
 290                     Data.drawerOpen.setValue(true);
 291                     fabManager.hideFab();
 292                 }
 293             };
 294             b.drawerLayout.addDrawerListener(drawerListener);
 295         }
 296
 297         Data.drawerOpen.observe(this, open -> {
 298             if (open)
 299                 b.drawerLayout.open();
 300             else
 301                 b.drawerLayout.close();
 302         });
 303
 304         mainModel.getUpdateError()
 305                  .observe(this, (error) -> {
 306                      if (error == null)
 307                          return;
 308
 309                      Snackbar.make(b.mainPager, error, Snackbar.LENGTH_INDEFINITE)
 310                              .show();
 311                      mainModel.clearUpdateError();
 312                  });
 313         Data.locale.observe(this, l -> refreshLastUpdateInfo());
 314         Data.lastUpdateDate.observe(this, date -> refreshLastUpdateInfo());
 315         Data.lastUpdateTransactionCount.observe(this, date -> refreshLastUpdateInfo());
 316         Data.lastUpdateAccountCount.observe(this, date -> refreshLastUpdateInfo());
 317         b.navAccountSummary.setOnClickListener(this::onAccountSummaryClicked);
 318         b.navLatestTransactions.setOnClickListener(this::onLatestTransactionsClicked);
 319         b.navPatterns.setOnClickListener(this::onPatternsClick);
 320     }
 321     private void onPatternsClick(View view) {
 322         Intent intent = new Intent(this, TemplatesActivity.class);
 323         startActivity(intent);
 324     }
 325     private void scheduleDataRetrievalIfStale(long lastUpdate) {
 326         long now = new Date().getTime();
 327         if ((lastUpdate == 0) || (now > (lastUpdate + (24 * 3600 * 1000)))) {
 328             if (lastUpdate == 0)
 329                 Logger.debug("db::", "WEB data never fetched. scheduling a fetch");
 330             else
 331                 Logger.debug("db", String.format(Locale.ENGLISH,
 332                         "WEB data last fetched at %1.3f and now is %1.3f. re-fetching",
 333                         lastUpdate / 1000f, now / 1000f));
 334
 335             mainModel.scheduleTransactionListRetrieval();
 336         }
 337     }
 338     private void createShortcuts(List<Profile> list) {
 339         if (Build.VERSION.SDK_INT < Build.VERSION_CODES.N_MR1)
 340             return;
 341
 342         ShortcutManager sm = getSystemService(ShortcutManager.class);
 343         List<ShortcutInfo> shortcuts = new ArrayList<>();
 344         int i = 0;
 345         for (Profile p : list) {
 346             if (shortcuts.size() >= sm.getMaxShortcutCountPerActivity())
 347                 break;
 348
 349             if (!p.permitPosting())
 350                 continue;
 351
 352             final ShortcutInfo.Builder builder =
 353                     new ShortcutInfo.Builder(this, "new_transaction_" + p.getId());
 354             ShortcutInfo si = builder.setShortLabel(p.getName())
 355                                      .setIcon(Icon.createWithResource(this,
 356                                              R.drawable.thick_plus_icon))
 357                                      .setIntent(new Intent(Intent.ACTION_VIEW, null, this,
 358                                              NewTransactionActivity.class).putExtra(
 359                                              ProfileThemedActivity.PARAM_PROFILE_ID, p.getId())
 360                                                                           .putExtra(
 361                                                                                   ProfileThemedActivity.PARAM_THEME,
 362                                                                                   p.getTheme()))
 363                                      .setRank(i)
 364                                      .build();
 365             shortcuts.add(si);
 366             i++;
 367         }
 368         sm.setDynamicShortcuts(shortcuts);
 369     }
 370     private void onProfileListChanged(List<Profile> newList) {
 371         if ((newList == null) || newList.isEmpty()) {
 372             b.noProfilesLayout.setVisibility(View.VISIBLE);
 373             b.mainAppLayout.setVisibility(View.GONE);
 374             return;
 375         }
 376
 377         b.mainAppLayout.setVisibility(View.VISIBLE);
 378         b.noProfilesLayout.setVisibility(View.GONE);
 379
 380         b.navProfileList.setMinimumHeight(
 381                 (int) (getResources().getDimension(R.dimen.thumb_row_height) * newList.size()));
 382
 383         Logger.debug("profiles", "profile list changed");
 384         mProfileListAdapter.setProfileList(newList);
 385
 386         createShortcuts(newList);
 387
 388         Profile currentProfile = Data.getProfile();
 389         if (currentProfile == null || !newList.contains(currentProfile)) {
 390             Logger.debug(TAG, "Switching profile because the current is no longer available");
 391             Data.setCurrentProfile(newList.get(0));
 392         }
 393     }
 394     /**
 395      * called when the current profile has changed
 396      */
 397     private void onProfileChanged(@Nullable Profile newProfile) {
 398         if (this.profile == null) {
 399             if (newProfile == null)
 400                 return;
 401         }
 402         else {
 403             if (this.profile.equals(newProfile))
 404                 return;
 405         }
 406
 407         boolean haveProfile = newProfile != null;
 408
 409         if (haveProfile)
 410             setTitle(newProfile.getName());
 411         else
 412             setTitle(R.string.app_name);
 413
 414         int newProfileTheme = haveProfile ? newProfile.getTheme() : -1;
 415         if (newProfileTheme != Colors.profileThemeId) {
 416             Logger.debug("profiles",
 417                     String.format(Locale.ENGLISH, "profile theme %d → %d", Colors.profileThemeId,
 418                             newProfileTheme));
 419             Colors.profileThemeId = newProfileTheme;
 420             profileThemeChanged();
 421             // profileThemeChanged would restart the activity, so no need to reload the
 422             // data sets below
 423             return;
 424         }
 425
 426         final boolean sameProfileId = (newProfile != null) && (this.profile != null) &&
 427                                       this.profile.getId() == newProfile.getId();
 428
 429         this.profile = newProfile;
 430
 431         b.noProfilesLayout.setVisibility(haveProfile ? View.GONE : View.VISIBLE);
 432         b.pagerLayout.setVisibility(haveProfile ? View.VISIBLE : View.VISIBLE);
 433
 434         mProfileListAdapter.notifyDataSetChanged();
 435
 436         if (haveProfile) {
 437             if (newProfile.permitPosting()) {
 438                 b.toolbar.setSubtitle(null);
 439                 b.btnAddTransaction.show();
 440             }
 441             else {
 442                 b.toolbar.setSubtitle(R.string.profile_subtitle_read_only);
 443                 b.btnAddTransaction.hide();
 444             }
 445         }
 446         else {
 447             b.toolbar.setSubtitle(null);
 448             b.btnAddTransaction.hide();
 449         }
 450
 451         updateLastUpdateTextFromDB();
 452
 453         if (sameProfileId) {
 454             Logger.debug(TAG, String.format(Locale.ROOT, "Short-cut profile 'changed' to %d",
 455                     newProfile.getId()));
 456             return;
 457         }
 458
 459         mainModel.getAccountFilter()
 460                  .observe(this, v -> {
 461                      Logger.debug(TAG, "account filter changed, reloading transactions");
 462                      mainModel.scheduleTransactionListReload();
 463                  });
 464
 465         mainModel.stopTransactionsRetrieval();
 466         mainModel.clearTransactions();
 467     }
 468     private void profileThemeChanged() {
 469         // un-hook all observed LiveData
 470         Data.removeProfileObservers(this);
 471         Data.profiles.removeObservers(this);
 472         Data.lastUpdateTransactionCount.removeObservers(this);
 473         Data.lastUpdateAccountCount.removeObservers(this);
 474         Data.lastUpdateDate.removeObservers(this);
 475
 476         Logger.debug(TAG, "profileThemeChanged(): recreating activity");
 477         recreate();
 478     }
 479     public void fabNewTransactionClicked(View view) {
 480         Intent intent = new Intent(this, NewTransactionActivity.class);
 481         intent.putExtra(ProfileThemedActivity.PARAM_PROFILE_ID, profile.getId());
 482         intent.putExtra(ProfileThemedActivity.PARAM_THEME, profile.getTheme());
 483         startActivity(intent);
 484         overridePendingTransition(R.anim.slide_in_up, R.anim.dummy);
 485     }
 486     public void markDrawerItemCurrent(int id) {
 487         TextView item = b.drawerLayout.findViewById(id);
 488         item.setBackgroundColor(Colors.tableRowDarkBG);
 489
 490         for (int i = 0; i < b.navActions.getChildCount(); i++) {
 491             View view = b.navActions.getChildAt(i);
 492             if (view.getId() != id) {
 493                 view.setBackgroundColor(Color.TRANSPARENT);
 494             }
 495         }
 496     }
 497     public void onAccountSummaryClicked(View view) {
 498         b.drawerLayout.closeDrawers();
 499
 500         showAccountSummaryFragment();
 501     }
 502     private void showAccountSummaryFragment() {
 503         b.mainPager.setCurrentItem(0, true);
 504         mainModel.getAccountFilter()
 505                  .setValue(null);
 506     }
 507     public void onLatestTransactionsClicked(View view) {
 508         b.drawerLayout.closeDrawers();
 509
 510         showTransactionsFragment(null);
 511     }
 512     public void showTransactionsFragment(String accName) {
 513         mainModel.getAccountFilter()
 514                  .setValue(accName);
 515         b.mainPager.setCurrentItem(1, true);
 516     }
 517     public void showAccountTransactions(String accountName) {
 518         mBackMeansToAccountList = true;
 519         showTransactionsFragment(accountName);
 520     }
 521     @Override
 522     public void onBackPressed() {
 523         if (b.drawerLayout.isDrawerOpen(GravityCompat.START)) {
 524             b.drawerLayout.closeDrawer(GravityCompat.START);
 525         }
 526         else {
 527             if (mBackMeansToAccountList && (b.mainPager.getCurrentItem() == 1)) {
 528                 mainModel.getAccountFilter()
 529                          .setValue(null);
 530                 showAccountSummaryFragment();
 531                 mBackMeansToAccountList = false;
 532             }
 533             else {
 534                 Logger.debug(TAG, String.format(Locale.ENGLISH, "manager stack: %d",
 535                         getSupportFragmentManager().getBackStackEntryCount()));
 536
 537                 super.onBackPressed();
 538             }
 539         }
 540     }
 541     public void updateLastUpdateTextFromDB() {
 542         if (profile == null)
 543             return;
 544
 545         DB.get()
 546           .getOptionDAO()
 547           .load(profile.getId(), Option.OPT_LAST_SCRAPE)
 548           .observe(this, opt -> {
 549               long lastUpdate = 0;
 550               if (opt != null) {
 551                   try {
 552                       lastUpdate = Long.parseLong(opt.getValue());
 553                   }
 554                   catch (NumberFormatException ex) {
 555                       Logger.debug(TAG, String.format("Error parsing '%s' as long", opt.getValue()),
 556                               ex);
 557                   }
 558               }
 559
 560               if (lastUpdate == 0) {
 561                   Data.lastUpdateDate.postValue(null);
 562               }
 563               else {
 564                   Data.lastUpdateDate.postValue(new Date(lastUpdate));
 565               }
 566
 567               scheduleDataRetrievalIfStale(lastUpdate);
 568           });
 569     }
 570     private void refreshLastUpdateInfo() {
 571         final int formatFlags = DateUtils.FORMAT_SHOW_DATE | DateUtils.FORMAT_SHOW_YEAR |
 572                                 DateUtils.FORMAT_SHOW_TIME | DateUtils.FORMAT_NUMERIC_DATE;
 573         String templateForTransactions =
 574                 getResources().getString(R.string.transaction_count_summary);
 575         String templateForAccounts = getResources().getString(R.string.account_count_summary);
 576         Integer accountCount = Data.lastUpdateAccountCount.getValue();
 577         Integer transactionCount = Data.lastUpdateTransactionCount.getValue();
 578         Date lastUpdate = Data.lastUpdateDate.getValue();
 579         if (lastUpdate == null) {
 580             Data.lastTransactionsUpdateText.setValue("----");
 581             Data.lastAccountsUpdateText.setValue("----");
 582         }
 583         else {
 584             Data.lastTransactionsUpdateText.setValue(
 585                     String.format(Objects.requireNonNull(Data.locale.getValue()),
 586                             templateForTransactions,
 587                             transactionCount == null ? 0 : transactionCount,
 588                             DateUtils.formatDateTime(this, lastUpdate.getTime(), formatFlags)));
 589             Data.lastAccountsUpdateText.setValue(
 590                     String.format(Objects.requireNonNull(Data.locale.getValue()),
 591                             templateForAccounts, accountCount == null ? 0 : accountCount,
 592                             DateUtils.formatDateTime(this, lastUpdate.getTime(), formatFlags)));
 593         }
 594     }
 595     public void onStopTransactionRefreshClick(View view) {
 596         Logger.debug(TAG, "Cancelling transactions refresh");
 597         mainModel.stopTransactionsRetrieval();
 598         b.transactionListCancelDownload.setEnabled(false);
 599     }
 600     public void onRetrieveRunningChanged(Boolean running) {
 601         if (running) {
 602             b.transactionListCancelDownload.setEnabled(true);
 603             ColorStateList csl = Colors.getColorStateList();
 604             b.transactionListProgressBar.setIndeterminateTintList(csl);
 605             b.transactionListProgressBar.setProgressTintList(csl);
 606             b.transactionListProgressBar.setIndeterminate(true);
 607             if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
 608                 b.transactionListProgressBar.setProgress(0, false);
 609             }
 610             else {
 611                 b.transactionListProgressBar.setProgress(0);
 612             }
 613             b.transactionProgressLayout.setVisibility(View.VISIBLE);
 614         }
 615         else {
 616             b.transactionProgressLayout.setVisibility(View.GONE);
 617         }
 618     }
 619     public void onRetrieveProgress(@Nullable RetrieveTransactionsTask.Progress progress) {
 620         if (progress == null ||
 621             progress.getState() == RetrieveTransactionsTask.ProgressState.FINISHED)
 622         {
 623             Logger.debug(TAG, "progress: Done");
 624             b.transactionProgressLayout.setVisibility(View.GONE);
 625
 626             mainModel.transactionRetrievalDone();
 627
 628             String error = (progress == null) ? null : progress.getError();
 629             if (error != null) {
 630                 if (error.equals(RetrieveTransactionsTask.Result.ERR_JSON_PARSER_ERROR))
 631                     error = getResources().getString(R.string.err_json_parser_error);
 632
 633                 AlertDialog.Builder builder = new AlertDialog.Builder(this);
 634                 builder.setMessage(error);
 635                 builder.setPositiveButton(R.string.btn_profile_options, (dialog, which) -> {
 636                     Logger.debug(TAG, "will start profile editor");
 637                     ProfileDetailActivity.start(this, profile);
 638                 });
 639                 builder.create()
 640                        .show();
 641                 return;
 642             }
 643
 644             return;
 645         }
 646
 647
 648         b.transactionListCancelDownload.setEnabled(true);
 649 //        ColorStateList csl = Colors.getColorStateList();
 650 //        progressBar.setIndeterminateTintList(csl);
 651 //        progressBar.setProgressTintList(csl);
 652 //        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N)
 653 //            progressBar.setProgress(0, false);
 654 //        else
 655 //            progressBar.setProgress(0);
 656         b.transactionProgressLayout.setVisibility(View.VISIBLE);
 657
 658         if (progress.isIndeterminate() || (progress.getTotal() <= 0)) {
 659             b.transactionListProgressBar.setIndeterminate(true);
 660             Logger.debug(TAG, "progress: indeterminate");
 661         }
 662         else {
 663             if (b.transactionListProgressBar.isIndeterminate()) {
 664                 b.transactionListProgressBar.setIndeterminate(false);
 665             }
 666 //            Logger.debug(TAG,
 667 //                    String.format(Locale.US, "progress: %d/%d", progress.getProgress(),
 668 //                    progress.getTotal
 669 //                    ()));
 670             b.transactionListProgressBar.setMax(progress.getTotal());
 671             // for some reason animation doesn't work - no progress is shown (stick at 0)
 672             // on lineageOS 14.1 (Nougat, 7.1.2)
 673             if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N)
 674                 b.transactionListProgressBar.setProgress(progress.getProgress(), false);
 675             else
 676                 b.transactionListProgressBar.setProgress(progress.getProgress());
 677         }
 678     }
 679     public void fabShouldShow() {
 680         if ((profile != null) && profile.permitPosting() && !b.drawerLayout.isOpen())
 681             fabManager.showFab();
 682     }
 683     @Override
 684     public Context getContext() {
 685         return this;
 686     }
 687     @Override
 688     public void showManagedFab() {
 689         fabShouldShow();
 690     }
 691     @Override
 692     public void hideManagedFab() {
 693         fabManager.hideFab();
 694     }
 695     public static class SectionsPagerAdapter extends FragmentStateAdapter {
 696
 697         public SectionsPagerAdapter(@NonNull FragmentActivity fragmentActivity) {
 698             super(fragmentActivity);
 699         }
 700         @NotNull
 701         @Override
 702         public Fragment createFragment(int position) {
 703             Logger.debug(TAG, String.format(Locale.ENGLISH, "Switching to fragment %d", position));
 704             switch (position) {
 705                 case 0:
 706 //                    debug(TAG, "Creating account summary fragment");
 707                     return new AccountSummaryFragment();
 708                 case 1:
 709                     return new TransactionListFragment();
 710                 default:
 711                     throw new IllegalStateException(
 712                             String.format("Unexpected fragment index: " + "%d", position));
 713             }
 714         }
 715
 716         @Override
 717         public int getItemCount() {
 718             return 2;
 719         }
 720     }
 721 }