transaction load: replace the list atomically

[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 0ce37f2c0184776fc60e30ff631aad1976c495e8..f2377c958022ed653a3158330877f5f197bb7d9a 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
@@ -40,15 +40,17 @@ public class TransactionListViewModel extends ViewModel {
 
         return transactions;
     }
-    private void reloadTransactions(Context context) {
-        transactions.clear();
+    public void reloadTransactions(Context context) {
+        ArrayList<LedgerTransaction> newList = new ArrayList<>();
+
         String sql = "SELECT id FROM transactions ORDER BY date desc, id desc";
 
         try (SQLiteDatabase db = MLDB.getReadableDatabase(context)) {
             try (Cursor cursor = db.rawQuery(sql, null)) {
                 while (cursor.moveToNext()) {
-                    transactions.add(new LedgerTransaction(cursor.getInt(0)));
+                    newList.add(new LedgerTransaction(cursor.getInt(0)));
                 }
+                transactions = newList;
             }
         }