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

   1 /*
   2  * Copyright © 2019 Damyan Ivanov.
   3  * This file is part of MoLe.
   4  * MoLe is free software: you can distribute it and/or modify it
   5  * under the term of the GNU General Public License as published by
   6  * the Free Software Foundation, either version 3 of the License, or
   7  * (at your opinion), any later version.
   8  *
   9  * MoLe is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  12  * GNU General Public License terms for details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with MoLe. If not, see <https://www.gnu.org/licenses/>.
  16  */
  17
  18 package net.ktnx.mobileledger.ui.activity;
  19
  20 import android.content.Intent;
  21 import android.content.pm.PackageInfo;
  22 import android.content.res.ColorStateList;
  23 import android.graphics.Color;
  24 import android.os.AsyncTask;
  25 import android.os.Build;
  26 import android.os.Bundle;
  27 import android.util.Log;
  28 import android.view.View;
  29 import android.view.ViewGroup;
  30 import android.view.ViewPropertyAnimator;
  31 import android.view.animation.Animation;
  32 import android.view.animation.AnimationUtils;
  33 import android.widget.LinearLayout;
  34 import android.widget.ProgressBar;
  35 import android.widget.TextView;
  36 import android.widget.Toast;
  37
  38 import com.google.android.material.floatingactionbutton.FloatingActionButton;
  39
  40 import net.ktnx.mobileledger.R;
  41 import net.ktnx.mobileledger.async.DbOpQueue;
  42 import net.ktnx.mobileledger.async.RefreshDescriptionsTask;
  43 import net.ktnx.mobileledger.async.RetrieveTransactionsTask;
  44 import net.ktnx.mobileledger.model.Data;
  45 import net.ktnx.mobileledger.model.LedgerAccount;
  46 import net.ktnx.mobileledger.model.MobileLedgerProfile;
  47 import net.ktnx.mobileledger.ui.account_summary.AccountSummaryAdapter;
  48 import net.ktnx.mobileledger.ui.account_summary.AccountSummaryFragment;
  49 import net.ktnx.mobileledger.ui.account_summary.AccountSummaryViewModel;
  50 import net.ktnx.mobileledger.ui.profiles.ProfileDetailFragment;
  51 import net.ktnx.mobileledger.ui.profiles.ProfilesRecyclerViewAdapter;
  52 import net.ktnx.mobileledger.ui.transaction_list.TransactionListFragment;
  53 import net.ktnx.mobileledger.ui.transaction_list.TransactionListViewModel;
  54 import net.ktnx.mobileledger.utils.Colors;
  55 import net.ktnx.mobileledger.utils.LockHolder;
  56 import net.ktnx.mobileledger.utils.MLDB;
  57
  58 import java.lang.ref.WeakReference;
  59 import java.text.DateFormat;
  60 import java.util.Date;
  61 import java.util.List;
  62 import java.util.Observer;
  63
  64 import androidx.appcompat.app.ActionBarDrawerToggle;
  65 import androidx.appcompat.widget.Toolbar;
  66 import androidx.core.view.GravityCompat;
  67 import androidx.drawerlayout.widget.DrawerLayout;
  68 import androidx.fragment.app.Fragment;
  69 import androidx.fragment.app.FragmentManager;
  70 import androidx.fragment.app.FragmentPagerAdapter;
  71 import androidx.recyclerview.widget.LinearLayoutManager;
  72 import androidx.recyclerview.widget.RecyclerView;
  73 import androidx.viewpager.widget.ViewPager;
  74
  75 public class MainActivity extends ProfileThemedActivity {
  76     public static final String STATE_CURRENT_PAGE = "current_page";
  77     public static final String BUNDLE_SAVED_STATE = "bundle_savedState";
  78     public static final String STATE_ACC_FILTER = "account_filter";
  79     public AccountSummaryFragment mAccountSummaryFragment;
  80     DrawerLayout drawer;
  81     private LinearLayout profileListContainer;
  82     private View profileListHeadArrow, profileListHeadMore, profileListHeadCancel;
  83     private LinearLayout profileListHeadMoreAndCancel;
  84     private FragmentManager fragmentManager;
  85     private TextView tvLastUpdate;
  86     private RetrieveTransactionsTask retrieveTransactionsTask;
  87     private View bTransactionListCancelDownload;
  88     private ProgressBar progressBar;
  89     private LinearLayout progressLayout;
  90     private SectionsPagerAdapter mSectionsPagerAdapter;
  91     private ViewPager mViewPager;
  92     private FloatingActionButton fab;
  93     private boolean profileModificationEnabled = false;
  94     private boolean profileListExpanded = false;
  95     private ProfilesRecyclerViewAdapter mProfileListAdapter;
  96     private int mCurrentPage;
  97     private String mAccountFilter;
  98     private boolean mBackMeansToAccountList = false;
  99     private Observer profileObserver;
 100     private Observer profilesObserver;
 101     private Observer lastUpdateDateObserver;
 102     @Override
 103     protected void onStart() {
 104         super.onStart();
 105
 106         Log.d("flow", "MainActivity.onStart()");
 107         mViewPager.setCurrentItem(mCurrentPage, false);
 108         if (mAccountFilter != null) showTransactionsFragment(mAccountFilter);
 109
 110     }
 111     @Override
 112     protected void onSaveInstanceState(Bundle outState) {
 113         super.onSaveInstanceState(outState);
 114         outState.putInt(STATE_CURRENT_PAGE, mViewPager.getCurrentItem());
 115         if (TransactionListFragment.accountFilter.get() != null)
 116             outState.putString(STATE_ACC_FILTER, TransactionListFragment.accountFilter.get());
 117     }
 118     @Override
 119     protected void onDestroy() {
 120         mSectionsPagerAdapter = null;
 121         Data.profile.deleteObserver(profileObserver);
 122         profileObserver = null;
 123         Data.profiles.deleteObserver(profilesObserver);
 124         profilesObserver = null;
 125         Data.lastUpdateDate.deleteObserver(lastUpdateDateObserver);
 126         RecyclerView root = findViewById(R.id.nav_profile_list);
 127         if (root != null) root.setAdapter(null);
 128         super.onDestroy();
 129     }
 130     @Override
 131     protected void onCreate(Bundle savedInstanceState) {
 132         super.onCreate(savedInstanceState);
 133         Log.d("flow", "MainActivity.onCreate()");
 134         setContentView(R.layout.activity_main);
 135
 136         fab = findViewById(R.id.btn_add_transaction);
 137         profileListContainer = findViewById(R.id.nav_profile_list_container);
 138         profileListHeadArrow = findViewById(R.id.nav_profiles_arrow);
 139         profileListHeadMore = findViewById(R.id.nav_profiles_start_edit);
 140         profileListHeadCancel = findViewById(R.id.nav_profiles_cancel_edit);
 141         profileListHeadMoreAndCancel = findViewById(R.id.nav_profile_list_head_buttons);
 142         drawer = findViewById(R.id.drawer_layout);
 143         tvLastUpdate = findViewById(R.id.transactions_last_update);
 144         bTransactionListCancelDownload = findViewById(R.id.transaction_list_cancel_download);
 145         progressBar = findViewById(R.id.transaction_list_progress_bar);
 146         progressLayout = findViewById(R.id.transaction_progress_layout);
 147         fragmentManager = getSupportFragmentManager();
 148         mSectionsPagerAdapter = new SectionsPagerAdapter(fragmentManager);
 149         mViewPager = findViewById(R.id.root_frame);
 150
 151         Bundle extra = getIntent().getBundleExtra(BUNDLE_SAVED_STATE);
 152         if (extra != null && savedInstanceState == null) savedInstanceState = extra;
 153
 154
 155         Toolbar toolbar = findViewById(R.id.toolbar);
 156         setSupportActionBar(toolbar);
 157
 158         profileObserver = (o, arg) -> {
 159             MobileLedgerProfile profile = Data.profile.get();
 160             MainActivity.this.runOnUiThread(() -> {
 161                 if (profile == null) MainActivity.this.setTitle(R.string.app_name);
 162                 else MainActivity.this.setTitle(profile.getName());
 163                 MainActivity.this.updateLastUpdateTextFromDB();
 164                 if (profile.isPostingPermitted()) {
 165                     toolbar.setSubtitle(null);
 166                     fab.show();
 167                 }
 168                 else {
 169                     toolbar.setSubtitle(R.string.profile_subitlte_read_only);
 170                     fab.hide();
 171                 }
 172
 173                 int old_index = -1;
 174                 int new_index = -1;
 175                 if (arg != null) {
 176                     MobileLedgerProfile old = (MobileLedgerProfile) arg;
 177                     old_index = Data.getProfileIndex(old);
 178                     new_index = Data.getProfileIndex(profile);
 179                 }
 180
 181                 if ((old_index != -1) && (new_index != -1)) {
 182                     mProfileListAdapter.notifyItemChanged(old_index);
 183                     mProfileListAdapter.notifyItemChanged(new_index);
 184                 }
 185                 else mProfileListAdapter.notifyDataSetChanged();
 186
 187                 MainActivity.this.collapseProfileList();
 188
 189                 int newProfileTheme = profile.getThemeId();
 190                 if (newProfileTheme != Colors.profileThemeId) {
 191                     Log.d("profiles", String.format("profile theme %d → %d", Colors.profileThemeId,
 192                             newProfileTheme));
 193                     MainActivity.this.profileThemeChanged();
 194                     Colors.profileThemeId = newProfileTheme;
 195                 }
 196                 else drawer.closeDrawers();
 197
 198                 Log.d("transactions", "requesting list reload");
 199                 TransactionListViewModel.scheduleTransactionListReload();
 200
 201                 AccountSummaryViewModel.scheduleAccountListReload();
 202
 203             });
 204         };
 205         Data.profile.addObserver(profileObserver);
 206         profilesObserver = (o, arg) -> {
 207             findViewById(R.id.nav_profile_list).setMinimumHeight(
 208                     (int) (getResources().getDimension(R.dimen.thumb_row_height) *
 209                            Data.profiles.size()));
 210
 211             Log.d("profiles", "profile list changed");
 212             if (arg == null) mProfileListAdapter.notifyDataSetChanged();
 213             else mProfileListAdapter.notifyItemChanged((int) arg);
 214         };
 215         Data.profiles.addObserver(profilesObserver);
 216
 217         ActionBarDrawerToggle toggle =
 218                 new ActionBarDrawerToggle(this, drawer, toolbar, R.string.navigation_drawer_open,
 219                         R.string.navigation_drawer_close);
 220         drawer.addDrawerListener(toggle);
 221         toggle.syncState();
 222
 223         TextView ver = drawer.findViewById(R.id.drawer_version_text);
 224
 225         try {
 226             PackageInfo pi =
 227                     getApplicationContext().getPackageManager().getPackageInfo(getPackageName(), 0);
 228             ver.setText(pi.versionName);
 229         }
 230         catch (Exception e) {
 231             e.printStackTrace();
 232         }
 233
 234         if (progressBar == null)
 235             throw new RuntimeException("Can't get hold on the transaction value progress bar");
 236         if (progressLayout == null) throw new RuntimeException(
 237                 "Can't get hold on the transaction value progress bar layout");
 238
 239         markDrawerItemCurrent(R.id.nav_account_summary);
 240
 241         mViewPager.setAdapter(mSectionsPagerAdapter);
 242         mViewPager.addOnPageChangeListener(new ViewPager.SimpleOnPageChangeListener() {
 243             @Override
 244             public void onPageSelected(int position) {
 245                 switch (position) {
 246                     case 0:
 247                         markDrawerItemCurrent(R.id.nav_account_summary);
 248                         break;
 249                     case 1:
 250                         markDrawerItemCurrent(R.id.nav_latest_transactions);
 251                         break;
 252                     default:
 253                         Log.e("MainActivity", String.format("Unexpected page index %d", position));
 254                 }
 255
 256                 super.onPageSelected(position);
 257             }
 258         });
 259
 260         mCurrentPage = 0;
 261         if (savedInstanceState != null) {
 262             int currentPage = savedInstanceState.getInt(STATE_CURRENT_PAGE, -1);
 263             if (currentPage != -1) {
 264                 mCurrentPage = currentPage;
 265             }
 266             mAccountFilter = savedInstanceState.getString(STATE_ACC_FILTER, null);
 267         }
 268
 269         lastUpdateDateObserver = (o, arg) -> {
 270             Log.d("main", "lastUpdateDate changed");
 271             runOnUiThread(this::updateLastUpdateDisplay);
 272         };
 273         Data.lastUpdateDate.addObserver(lastUpdateDateObserver);
 274
 275         updateLastUpdateDisplay();
 276
 277         findViewById(R.id.btn_no_profiles_add)
 278                 .setOnClickListener(v -> startEditProfileActivity(null));
 279
 280         findViewById(R.id.btn_add_transaction).setOnClickListener(this::fabNewTransactionClicked);
 281
 282         findViewById(R.id.nav_new_profile_button)
 283                 .setOnClickListener(v -> startEditProfileActivity(null));
 284
 285         RecyclerView root = findViewById(R.id.nav_profile_list);
 286         if (root == null)
 287             throw new RuntimeException("Can't get hold on the transaction value view");
 288
 289         if (mProfileListAdapter == null) mProfileListAdapter = new ProfilesRecyclerViewAdapter();
 290         root.setAdapter(mProfileListAdapter);
 291
 292         mProfileListAdapter.addEditingProfilesObserver((o, arg) -> {
 293             if (mProfileListAdapter.isEditingProfiles()) {
 294                 profileListHeadArrow.clearAnimation();
 295                 profileListHeadArrow.setVisibility(View.GONE);
 296                 profileListHeadMore.setVisibility(View.GONE);
 297                 profileListHeadCancel.setVisibility(View.VISIBLE);
 298             }
 299             else {
 300                 profileListHeadArrow.setRotation(180f);
 301                 profileListHeadArrow.setVisibility(View.VISIBLE);
 302                 profileListHeadCancel.setVisibility(View.GONE);
 303                 profileListHeadMore.setVisibility(View.GONE);
 304                 profileListHeadMore.setVisibility(profileListExpanded ? View.VISIBLE : View.GONE);
 305             }
 306         });
 307
 308         LinearLayoutManager llm = new LinearLayoutManager(this);
 309
 310         llm.setOrientation(RecyclerView.VERTICAL);
 311         root.setLayoutManager(llm);
 312
 313         profileListHeadMore.setOnClickListener((v) -> mProfileListAdapter.flipEditingProfiles());
 314         profileListHeadCancel.setOnClickListener((v) -> mProfileListAdapter.flipEditingProfiles());
 315         profileListHeadMoreAndCancel
 316                 .setOnClickListener((v) -> mProfileListAdapter.flipEditingProfiles());
 317
 318         drawer.addDrawerListener(new DrawerLayout.SimpleDrawerListener() {
 319             @Override
 320             public void onDrawerClosed(View drawerView) {
 321                 super.onDrawerClosed(drawerView);
 322                 collapseProfileList();
 323             }
 324         });
 325
 326         setupProfile();
 327
 328         updateLastUpdateTextFromDB();
 329         Date lastUpdate = Data.lastUpdateDate.get();
 330
 331         long now = new Date().getTime();
 332         if ((lastUpdate == null) || (now > (lastUpdate.getTime() + (24 * 3600 * 1000)))) {
 333             if (lastUpdate == null) Log.d("db::", "WEB data never fetched. scheduling a fetch");
 334             else Log.d("db",
 335                     String.format("WEB data last fetched at %1.3f and now is %1.3f. re-fetching",
 336                             lastUpdate.getTime() / 1000f, now / 1000f));
 337
 338             scheduleTransactionListRetrieval();
 339         }
 340     }
 341     private void updateLastUpdateDisplay() {
 342         LinearLayout l = findViewById(R.id.transactions_last_update_layout);
 343         TextView v = findViewById(R.id.transactions_last_update);
 344         Date date = Data.lastUpdateDate.get();
 345         if (date == null) {
 346             l.setVisibility(View.INVISIBLE);
 347             Log.d("main", "no last update date :(");
 348         }
 349         else {
 350             final String text = DateFormat.getDateTimeInstance().format(date);
 351             v.setText(text);
 352             l.setVisibility(View.VISIBLE);
 353             Log.d("main", String.format("Date formatted: %s", text));
 354         }
 355     }
 356     private void profileThemeChanged() {
 357         setupProfileColors();
 358
 359         Bundle bundle = new Bundle();
 360         onSaveInstanceState(bundle);
 361         // restart activity to reflect theme change
 362         finish();
 363         Intent intent = new Intent(this, this.getClass());
 364         intent.putExtra(BUNDLE_SAVED_STATE, bundle);
 365         startActivity(intent);
 366     }
 367     public void startEditProfileActivity(MobileLedgerProfile profile) {
 368         Intent intent = new Intent(this, ProfileDetailActivity.class);
 369         Bundle args = new Bundle();
 370         if (profile != null) {
 371             int index = Data.getProfileIndex(profile);
 372             if (index != -1) intent.putExtra(ProfileDetailFragment.ARG_ITEM_ID, index);
 373         }
 374         intent.putExtras(args);
 375         startActivity(intent, args);
 376     }
 377     private void setupProfile() {
 378         String profileUUID = MLDB.getOption(MLDB.OPT_PROFILE_UUID, null);
 379         MobileLedgerProfile profile;
 380
 381         profile = MobileLedgerProfile.loadAllFromDB(profileUUID);
 382
 383         if (Data.profiles.isEmpty()) {
 384             findViewById(R.id.no_profiles_layout).setVisibility(View.VISIBLE);
 385             findViewById(R.id.pager_layout).setVisibility(View.GONE);
 386             return;
 387         }
 388
 389         findViewById(R.id.pager_layout).setVisibility(View.VISIBLE);
 390         findViewById(R.id.no_profiles_layout).setVisibility(View.GONE);
 391
 392         if (profile == null) profile = Data.profiles.get(0);
 393
 394         if (profile == null) throw new AssertionError("profile must have a value");
 395
 396         Data.setCurrentProfile(profile);
 397     }
 398     public void fabNewTransactionClicked(View view) {
 399         Intent intent = new Intent(this, NewTransactionActivity.class);
 400         startActivity(intent);
 401         overridePendingTransition(R.anim.slide_in_right, R.anim.dummy);
 402     }
 403     public void navSettingsClicked(View view) {
 404         Intent intent = new Intent(this, SettingsActivity.class);
 405         startActivity(intent);
 406         drawer.closeDrawers();
 407     }
 408     public void markDrawerItemCurrent(int id) {
 409         TextView item = drawer.findViewById(id);
 410         item.setBackgroundColor(Colors.tableRowDarkBG);
 411
 412         LinearLayout actions = drawer.findViewById(R.id.nav_actions);
 413         for (int i = 0; i < actions.getChildCount(); i++) {
 414             View view = actions.getChildAt(i);
 415             if (view.getId() != id) {
 416                 view.setBackgroundColor(Color.TRANSPARENT);
 417             }
 418         }
 419     }
 420     public void onAccountSummaryClicked(View view) {
 421         drawer.closeDrawers();
 422
 423         showAccountSummaryFragment();
 424     }
 425     private void showAccountSummaryFragment() {
 426         mViewPager.setCurrentItem(0, true);
 427         TransactionListFragment.accountFilter.set(null);
 428 //        FragmentTransaction ft = fragmentManager.beginTransaction();
 429 //        accountSummaryFragment = new AccountSummaryFragment();
 430 //        ft.replace(R.id.root_frame, accountSummaryFragment);
 431 //        ft.commit();
 432 //        currentFragment = accountSummaryFragment;
 433     }
 434     public void onLatestTransactionsClicked(View view) {
 435         drawer.closeDrawers();
 436
 437         showTransactionsFragment((String) null);
 438     }
 439     private void resetFragmentBackStack() {
 440 //        fragmentManager.popBackStack(0, FragmentManager.POP_BACK_STACK_INCLUSIVE);
 441     }
 442     private void showTransactionsFragment(String accName) {
 443         TransactionListFragment.accountFilter.set(accName);
 444         TransactionListFragment.accountFilter.notifyObservers();
 445         mViewPager.setCurrentItem(1, true);
 446     }
 447     private void showTransactionsFragment(LedgerAccount account) {
 448         showTransactionsFragment((account == null) ? (String) null : account.getName());
 449 //        FragmentTransaction ft = fragmentManager.beginTransaction();
 450 //        if (transactionListFragment == null) {
 451 //            Log.d("flow", "MainActivity creating TransactionListFragment");
 452 //            transactionListFragment = new TransactionListFragment();
 453 //        }
 454 //        Bundle bundle = new Bundle();
 455 //        if (account != null) {
 456 //            bundle.putString(TransactionListFragment.BUNDLE_KEY_FILTER_ACCOUNT_NAME,
 457 //                    account.getName());
 458 //        }
 459 //        transactionListFragment.setArguments(bundle);
 460 //        ft.replace(R.id.root_frame, transactionListFragment);
 461 //        if (account != null)
 462 //            ft.addToBackStack(getResources().getString(R.string.title_activity_transaction_list));
 463 //        ft.commit();
 464 //
 465 //        currentFragment = transactionListFragment;
 466     }
 467     public void showAccountTransactions(LedgerAccount account) {
 468         mBackMeansToAccountList = true;
 469         showTransactionsFragment(account);
 470     }
 471     @Override
 472     public void onBackPressed() {
 473         DrawerLayout drawer = findViewById(R.id.drawer_layout);
 474         if (drawer.isDrawerOpen(GravityCompat.START)) {
 475             drawer.closeDrawer(GravityCompat.START);
 476         }
 477         else {
 478             if (mBackMeansToAccountList && (mViewPager.getCurrentItem() == 1)) {
 479                 TransactionListFragment.accountFilter.set(null);
 480                 showAccountSummaryFragment();
 481                 mBackMeansToAccountList = false;
 482             }
 483             else {
 484                 Log.d("fragments", String.format("manager stack: %d",
 485                         fragmentManager.getBackStackEntryCount()));
 486
 487                 super.onBackPressed();
 488             }
 489         }
 490     }
 491     public void updateLastUpdateTextFromDB() {
 492         {
 493             final MobileLedgerProfile profile = Data.profile.get();
 494             long last_update =
 495                     (profile != null) ? profile.getLongOption(MLDB.OPT_LAST_SCRAPE, 0L) : 0;
 496
 497             Log.d("transactions", String.format("Last update = %d", last_update));
 498             if (last_update == 0) {
 499                 Data.lastUpdateDate.set(null);
 500             }
 501             else {
 502                 Data.lastUpdateDate.set(new Date(last_update));
 503             }
 504         }
 505     }
 506     public void scheduleTransactionListRetrieval() {
 507         if (Data.profile.get() == null) return;
 508
 509         retrieveTransactionsTask = new RetrieveTransactionsTask(new WeakReference<>(this));
 510
 511         retrieveTransactionsTask.execute();
 512     }
 513     public void onStopTransactionRefreshClick(View view) {
 514         Log.d("interactive", "Cancelling transactions refresh");
 515         if (retrieveTransactionsTask != null) retrieveTransactionsTask.cancel(false);
 516         bTransactionListCancelDownload.setEnabled(false);
 517     }
 518     public void onRetrieveDone(String error) {
 519         progressLayout.setVisibility(View.GONE);
 520
 521         if (error == null) {
 522             updateLastUpdateTextFromDB();
 523
 524             new RefreshDescriptionsTask().executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR);
 525             TransactionListViewModel.scheduleTransactionListReload();
 526         }
 527         else Toast.makeText(this, error, Toast.LENGTH_LONG).show();
 528     }
 529     public void onRetrieveStart() {
 530         bTransactionListCancelDownload.setEnabled(true);
 531         progressBar.setIndeterminateTintList(ColorStateList.valueOf(Colors.primary));
 532         progressBar.setProgressTintList(ColorStateList.valueOf(Colors.primary));
 533         progressBar.setIndeterminate(true);
 534         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) progressBar.setProgress(0, false);
 535         else progressBar.setProgress(0);
 536         progressLayout.setVisibility(View.VISIBLE);
 537     }
 538     public void onRetrieveProgress(RetrieveTransactionsTask.Progress progress) {
 539         if ((progress.getTotal() == RetrieveTransactionsTask.Progress.INDETERMINATE) ||
 540             (progress.getTotal() == 0))
 541         {
 542             progressBar.setIndeterminate(true);
 543         }
 544         else {
 545             if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
 546                 progressBar.setMin(0);
 547             }
 548             progressBar.setMax(progress.getTotal());
 549             if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
 550                 progressBar.setProgress(progress.getProgress(), true);
 551             }
 552             else progressBar.setProgress(progress.getProgress());
 553             progressBar.setIndeterminate(false);
 554         }
 555     }
 556     public void fabShouldShow() {
 557         MobileLedgerProfile profile = Data.profile.get();
 558         if ((profile != null) && profile.isPostingPermitted()) fab.show();
 559     }
 560     public void navProfilesHeadClicked(View view) {
 561         if (profileListExpanded) {
 562             collapseProfileList();
 563         }
 564         else {
 565             expandProfileList();
 566         }
 567     }
 568     private void expandProfileList() {
 569         profileListExpanded = true;
 570
 571
 572         profileListContainer.setVisibility(View.VISIBLE);
 573         profileListContainer.startAnimation(AnimationUtils.loadAnimation(this, R.anim.slide_down));
 574         profileListHeadArrow.startAnimation(AnimationUtils.loadAnimation(this, R.anim.rotate_180));
 575         profileListHeadMore.setVisibility(View.VISIBLE);
 576         profileListHeadMore.startAnimation(AnimationUtils.loadAnimation(this, R.anim.fade_in));
 577         findViewById(R.id.nav_profile_list).setMinimumHeight(
 578                 (int) (getResources().getDimension(R.dimen.thumb_row_height) *
 579                        Data.profiles.size()));
 580     }
 581     private void collapseProfileList() {
 582         profileListExpanded = false;
 583
 584         final Animation animation = AnimationUtils.loadAnimation(this, R.anim.slide_up);
 585         animation.setAnimationListener(new Animation.AnimationListener() {
 586             @Override
 587             public void onAnimationStart(Animation animation) {
 588
 589             }
 590             @Override
 591             public void onAnimationEnd(Animation animation) {
 592                 profileListContainer.setVisibility(View.GONE);
 593             }
 594             @Override
 595             public void onAnimationRepeat(Animation animation) {
 596
 597             }
 598         });
 599         mProfileListAdapter.stopEditingProfiles();
 600
 601         profileListContainer.startAnimation(animation);
 602         profileListHeadArrow.setRotation(0f);
 603         profileListHeadArrow
 604                 .startAnimation(AnimationUtils.loadAnimation(this, R.anim.rotate_180_back));
 605         profileListHeadMore.setVisibility(View.GONE);
 606     }
 607     public void onProfileRowClicked(View v) {
 608         Data.setCurrentProfile((MobileLedgerProfile) v.getTag());
 609     }
 610     public void enableProfileModifications() {
 611         profileModificationEnabled = true;
 612         ViewGroup profileList = findViewById(R.id.nav_profile_list);
 613         for (int i = 0; i < profileList.getChildCount(); i++) {
 614             View aRow = profileList.getChildAt(i);
 615             aRow.findViewById(R.id.profile_list_edit_button).setVisibility(View.VISIBLE);
 616             aRow.findViewById(R.id.profile_list_rearrange_handle).setVisibility(View.VISIBLE);
 617         }
 618         // FIXME enable rearranging
 619
 620     }
 621     public void disableProfileModifications() {
 622         profileModificationEnabled = false;
 623         ViewGroup profileList = findViewById(R.id.nav_profile_list);
 624         for (int i = 0; i < profileList.getChildCount(); i++) {
 625             View aRow = profileList.getChildAt(i);
 626             aRow.findViewById(R.id.profile_list_edit_button).setVisibility(View.GONE);
 627             aRow.findViewById(R.id.profile_list_rearrange_handle).setVisibility(View.INVISIBLE);
 628         }
 629         // FIXME disable rearranging
 630
 631     }
 632     public void onAccountSummaryRowViewClicked(View view) {
 633         ViewGroup row = (ViewGroup) view.getParent();
 634         LedgerAccount acc = (LedgerAccount) row.getTag();
 635         switch (view.getId()) {
 636             case R.id.account_row_acc_name:
 637             case R.id.account_expander_container:
 638                 Log.d("accounts", "Account expander clicked");
 639                 if (!acc.hasSubAccounts()) return;
 640
 641                 boolean wasExpanded = acc.isExpanded();
 642
 643                 View arrow = row.findViewById(R.id.account_expander_container);
 644
 645                 arrow.clearAnimation();
 646                 ViewPropertyAnimator animator = arrow.animate();
 647
 648                 acc.toggleExpanded();
 649                 DbOpQueue.add("update accounts set expanded=? where name=? and profile=?",
 650                         new Object[]{acc.isExpanded(), acc.getName(), Data.profile.get().getUuid()
 651                         });
 652
 653                 if (wasExpanded) {
 654                     Log.d("accounts", String.format("Collapsing account '%s'", acc.getName()));
 655                     arrow.setRotation(0);
 656                     animator.rotationBy(180);
 657
 658                     // removing all child accounts from the view
 659                     int start = -1, count = 0;
 660                     try (LockHolder lh = Data.accounts.lockForWriting()) {
 661                         for (int i = 0; i < Data.accounts.size(); i++) {
 662                             if (acc.isParentOf(Data.accounts.get(i))) {
 663 //                                Log.d("accounts", String.format("Found a child '%s' at position %d",
 664 //                                        Data.accounts.get(i).getName(), i));
 665                                 if (start == -1) {
 666                                     start = i;
 667                                 }
 668                                 count++;
 669                             }
 670                             else {
 671                                 if (start != -1) {
 672 //                                    Log.d("accounts",
 673 //                                            String.format("Found a non-child '%s' at position %d",
 674 //                                                    Data.accounts.get(i).getName(), i));
 675                                     break;
 676                                 }
 677                             }
 678                         }
 679
 680                         if (start != -1) {
 681                             for (int j = 0; j < count; j++) {
 682 //                                Log.d("accounts", String.format("Removing item %d: %s", start + j,
 683 //                                        Data.accounts.get(start).getName()));
 684                                 Data.accounts.removeQuietly(start);
 685                             }
 686
 687                             mAccountSummaryFragment.modelAdapter
 688                                     .notifyItemRangeRemoved(start, count);
 689                         }
 690                     }
 691                 }
 692                 else {
 693                     Log.d("accounts", String.format("Expanding account '%s'", acc.getName()));
 694                     arrow.setRotation(180);
 695                     animator.rotationBy(-180);
 696                     List<LedgerAccount> children =
 697                             Data.profile.get().loadVisibleChildAccountsOf(acc);
 698                     try (LockHolder lh = Data.accounts.lockForWriting()) {
 699                         int parentPos = Data.accounts.indexOf(acc);
 700                         if (parentPos != -1) {
 701                             // may have disappeared in a concurrent refresh operation
 702                             Data.accounts.addAllQuietly(parentPos + 1, children);
 703                             mAccountSummaryFragment.modelAdapter
 704                                     .notifyItemRangeInserted(parentPos + 1, children.size());
 705                         }
 706                     }
 707                 }
 708                 break;
 709             case R.id.account_row_acc_amounts:
 710                 if (acc.getAmountCount() > AccountSummaryAdapter.AMOUNT_LIMIT) {
 711                     acc.toggleAmountsExpanded();
 712                     DbOpQueue
 713                             .add("update accounts set amounts_expanded=? where name=? and profile=?",
 714                                     new Object[]{acc.amountsExpanded(), acc.getName(),
 715                                                  Data.profile.get().getUuid()
 716                                     });
 717                     Data.accounts.triggerItemChangedNotification(acc);
 718                 }
 719                 break;
 720         }
 721     }
 722
 723     public class SectionsPagerAdapter extends FragmentPagerAdapter {
 724
 725         public SectionsPagerAdapter(FragmentManager fm) {
 726             super(fm);
 727         }
 728
 729         @Override
 730         public Fragment getItem(int position) {
 731             Log.d("main", String.format("Switching to fragment %d", position));
 732             switch (position) {
 733                 case 0:
 734 //                    Log.d("flow", "Creating account summary fragment");
 735                     return mAccountSummaryFragment = new AccountSummaryFragment();
 736                 case 1:
 737                     return new TransactionListFragment();
 738                 default:
 739                     throw new IllegalStateException(
 740                             String.format("Unexpected fragment index: " + "%d", position));
 741             }
 742         }
 743
 744         @Override
 745         public int getCount() {
 746             return 2;
 747         }
 748     }
 749 }