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