more thread pool async task execution

[mobile-ledger.git] / app / src / main / java / net / ktnx / mobileledger / ui / transaction_list / TransactionListViewModel.java

diff --git a/app/src/main/java/net/ktnx/mobileledger/ui/transaction_list/TransactionListViewModel.java b/app/src/main/java/net/ktnx/mobileledger/ui/transaction_list/TransactionListViewModel.java
index 53f48d342464b2e910f722f58730c7d3404b70fe..513bf9f48f0aeef72e8649955a19ac48d574de15 100644 (file)
--- a/app/src/main/java/net/ktnx/mobileledger/ui/transaction_list/TransactionListViewModel.java
+++ b/app/src/main/java/net/ktnx/mobileledger/ui/transaction_list/TransactionListViewModel.java
@@ -1,23 +1,22 @@
 /*
  * Copyright © 2019 Damyan Ivanov.
- * This file is part of Mobile-Ledger.
- * Mobile-Ledger is free software: you can distribute it and/or modify it
+ * This file is part of MoLe.
+ * MoLe is free software: you can distribute it and/or modify it
  * under the term of the GNU General Public License as published by
  * the Free Software Foundation, either version 3 of the License, or
  * (at your opinion), any later version.
  *
- * Mobile-Ledger is distributed in the hope that it will be useful,
+ * MoLe is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  * GNU General Public License terms for details.
  *
  * You should have received a copy of the GNU General Public License
- * along with Mobile-Ledger. If not, see <https://www.gnu.org/licenses/>.
+ * along with MoLe. If not, see <https://www.gnu.org/licenses/>.
  */
 
 package net.ktnx.mobileledger.ui.transaction_list;
 
-import android.arch.lifecycle.ViewModel;
 import android.os.AsyncTask;
 
 import net.ktnx.mobileledger.async.UpdateTransactionsTask;
@@ -27,17 +26,24 @@ import net.ktnx.mobileledger.utils.ObservableValue;
 
 import java.util.List;
 
+import androidx.lifecycle.ViewModel;
+
 public class TransactionListViewModel extends ViewModel {
     public static ObservableValue<Boolean> updating = new ObservableValue<>();
+    public static ObservableValue<String> updateError = new ObservableValue<>();
 
     public static void scheduleTransactionListReload() {
+        if (Data.profile.get() == null) return;
+
         String filter = TransactionListFragment.accountFilter.get();
-        AsyncTask<String, Void, List<TransactionListItem>> task = new UTT();
-        task.execute(filter);
+        AsyncTask<String, Void, String> task = new UTT();
+        task.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR, filter);
     }
     public static TransactionListItem getTransactionListItem(int position) {
         List<TransactionListItem> transactions = Data.transactions.get();
-        if (position >= transactions.size()) return null;
+        if (transactions == null) return null;
+        if (position >= transactions.size() + 1) return null;
+        if (position == transactions.size()) return new TransactionListItem();
         return transactions.get(position);
     }
     public static int getTransactionCount() {
@@ -47,9 +53,9 @@ public class TransactionListViewModel extends ViewModel {
     }
     private static class UTT extends UpdateTransactionsTask {
         @Override
-        protected void onPostExecute(List<TransactionListItem> list) {
-            super.onPostExecute(list);
-            if (list != null) Data.transactions.set(list);
+        protected void onPostExecute(String error) {
+            super.onPostExecute(error);
+            if (error != null) updateError.set(error);
         }
     }
 }