app/src/main/java/net/ktnx/mobileledger/TransactionListActivity.java

   1 /*
   2  * Copyright © 2018 Damyan Ivanov.
   3  * This file is part of Mobile-Ledger.
   4  * Mobile-Ledger 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  * Mobile-Ledger 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 Mobile-Ledger. If not, see <https://www.gnu.org/licenses/>.
  16  */
  17
  18 package net.ktnx.mobileledger;
  19
  20 import android.arch.lifecycle.ViewModelProviders;
  21 import android.os.Build;
  22 import android.os.Bundle;
  23 import android.preference.PreferenceManager;
  24 import android.support.v4.widget.SwipeRefreshLayout;
  25 import android.support.v7.app.ActionBar;
  26 import android.support.v7.app.AppCompatActivity;
  27 import android.support.v7.widget.LinearLayoutManager;
  28 import android.support.v7.widget.RecyclerView;
  29 import android.support.v7.widget.Toolbar;
  30 import android.util.Log;
  31 import android.view.View;
  32 import android.widget.LinearLayout;
  33 import android.widget.ProgressBar;
  34 import android.widget.TextView;
  35
  36 import net.ktnx.mobileledger.async.RetrieveTransactionsTask;
  37 import net.ktnx.mobileledger.ui.transaction_list.TransactionListViewModel;
  38 import net.ktnx.mobileledger.utils.MLDB;
  39
  40 import java.lang.ref.WeakReference;
  41 import java.time.ZoneId;
  42 import java.time.format.DateTimeFormatter;
  43 import java.util.Date;
  44
  45 public class TransactionListActivity extends AppCompatActivity {
  46     public TransactionListViewModel model;
  47     private SwipeRefreshLayout swiper;
  48     private RecyclerView root;
  49     private ProgressBar progressBar;
  50     private LinearLayout progressLayout;
  51     private TextView tvLastUpdate;
  52     private TransactionListAdapter modelAdapter;
  53     private RetrieveTransactionsTask retrieveTransactionsTask;
  54     @Override
  55     protected void onCreate(Bundle savedInstanceState) {
  56         super.onCreate(savedInstanceState);
  57         setContentView(R.layout.transaction_list_activity);
  58
  59         Toolbar toolbar = findViewById(R.id.toolbar);
  60         setSupportActionBar(toolbar);
  61
  62         setupActionBar();
  63
  64         swiper = findViewById(R.id.transaction_swipe);
  65         if (swiper == null) throw new RuntimeException("Can't get hold on the swipe layout");
  66         root = findViewById(R.id.transaction_root);
  67         if (root == null) throw new RuntimeException("Can't get hold on the transaction list view");
  68         progressBar = findViewById(R.id.transaction_list_progress_bar);
  69         if (progressBar == null)
  70             throw new RuntimeException("Can't get hold on the transaction list progress bar");
  71         progressLayout = findViewById(R.id.transaction_progress_layout);
  72         if (progressLayout == null) throw new RuntimeException(
  73                 "Can't get hold on the transaction list progress bar layout");
  74         tvLastUpdate = findViewById(R.id.transactions_last_update);
  75         updateLastUpdateText();
  76         model = ViewModelProviders.of(this).get(TransactionListViewModel.class);
  77         modelAdapter = new TransactionListAdapter(model);
  78
  79         RecyclerView root = findViewById(R.id.transaction_root);
  80         root.setAdapter(modelAdapter);
  81
  82         LinearLayoutManager llm = new LinearLayoutManager(this);
  83
  84         llm.setOrientation(LinearLayoutManager.VERTICAL);
  85         root.setLayoutManager(llm);
  86
  87         swiper.setOnRefreshListener(() -> {
  88             Log.d("ui", "refreshing transactions via swipe");
  89             update_transactions();
  90         });
  91
  92         swiper.setColorSchemeResources(R.color.colorPrimary, R.color.colorAccent);
  93
  94         updateLastUpdateText();
  95         long last_update = MLDB.get_option_value(this, MLDB.OPT_TRANSACTION_LIST_STAMP, 0L);
  96         Log.d("transactions", String.format("Last update = %d", last_update));
  97         if (last_update == 0) {
  98             update_transactions();
  99         }
 100         else {
 101             model.reloadTransactions(this);
 102         }
 103     }
 104     private void setupActionBar() {
 105         ActionBar actionBar = getSupportActionBar();
 106         if (actionBar != null) {
 107             // Show the Up button in the action bar.
 108             actionBar.setDisplayHomeAsUpEnabled(true);
 109         }
 110     }
 111     @Override
 112     public void finish() {
 113         super.finish();
 114         Log.d("visuals", "finishing");
 115         overridePendingTransition(R.anim.dummy, R.anim.slide_out_right);
 116     }
 117     private void update_transactions() {
 118         retrieveTransactionsTask = new RetrieveTransactionsTask(new WeakReference<>(this));
 119
 120         RetrieveTransactionsTask.Params params = new RetrieveTransactionsTask.Params(
 121                 PreferenceManager.getDefaultSharedPreferences(this));
 122
 123         retrieveTransactionsTask.execute(params);
 124         findViewById(R.id.transaction_list_cancel_download).setEnabled(true);
 125     }
 126
 127     public void onRetrieveStart() {
 128         progressBar.setIndeterminate(true);
 129         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) progressBar.setProgress(0, false);
 130         else progressBar.setProgress(0);
 131         progressLayout.setVisibility(View.VISIBLE);
 132     }
 133     public void onRetrieveProgress(RetrieveTransactionsTask.Progress progress) {
 134         if ((progress.getTotal() == RetrieveTransactionsTask.Progress.INDETERMINATE) ||
 135             (progress.getTotal() == 0))
 136         {
 137             progressBar.setIndeterminate(true);
 138         }
 139         else {
 140             if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
 141                 progressBar.setMin(0);
 142             }
 143             progressBar.setMax(progress.getTotal());
 144             if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
 145                 progressBar.setProgress(progress.getProgress(), true);
 146             }
 147             else progressBar.setProgress(progress.getProgress());
 148             progressBar.setIndeterminate(false);
 149         }
 150     }
 151
 152     public void onRetrieveDone(boolean success) {
 153         progressLayout.setVisibility(View.GONE);
 154         swiper.setRefreshing(false);
 155         updateLastUpdateText();
 156         if (success) {
 157             Log.d("transactions", "calling notifyDataSetChanged()");
 158             modelAdapter.notifyDataSetChanged();
 159         }
 160     }
 161     private void updateLastUpdateText() {
 162         {
 163             long last_update = MLDB.get_option_value(this, MLDB.OPT_TRANSACTION_LIST_STAMP, 0L);
 164             Log.d("transactions", String.format("Last update = %d", last_update));
 165             if (last_update == 0) {
 166                 tvLastUpdate.setText(getString(R.string.transaction_last_update_never));
 167             }
 168             else {
 169                 Date date = new Date(last_update);
 170                 if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
 171                     tvLastUpdate.setText(date.toInstant().atZone(ZoneId.systemDefault())
 172                             .format(DateTimeFormatter.ISO_LOCAL_DATE_TIME));
 173                 }
 174                 else {
 175                     tvLastUpdate.setText(date.toLocaleString());
 176                 }
 177             }
 178         }
 179     }
 180     public void onStopTransactionRefreshClick(View view) {
 181         Log.d("interactive", "Cancelling transactions refresh");
 182         if (retrieveTransactionsTask != null) retrieveTransactionsTask.cancel(false);
 183         findViewById(R.id.transaction_list_cancel_download).setEnabled(false);
 184     }
 185 }