X-Git-Url: https://git.ktnx.net/?p=mobile-ledger-staging.git;a=blobdiff_plain;f=app%2Fsrc%2Fmain%2Fjava%2Fnet%2Fktnx%2Fmobileledger%2Fui%2Ftransaction_list%2FTransactionListAdapter.java;h=492c6151266a31540543c1f7cdf368234bc33afb;hp=96de4b64a017501b4e7a842717e41def70768119;hb=20c03b7a5eb152d42fbbe9ecbaae27530563b398;hpb=ff27cd8c41424676ec046c58448d23cd4313d1dc diff --git a/app/src/main/java/net/ktnx/mobileledger/ui/transaction_list/TransactionListAdapter.java b/app/src/main/java/net/ktnx/mobileledger/ui/transaction_list/TransactionListAdapter.java index 96de4b64..492c6151 100644 --- a/app/src/main/java/net/ktnx/mobileledger/ui/transaction_list/TransactionListAdapter.java +++ b/app/src/main/java/net/ktnx/mobileledger/ui/transaction_list/TransactionListAdapter.java @@ -33,26 +33,77 @@ import android.widget.TextView; import androidx.annotation.ColorInt; import androidx.annotation.NonNull; +import androidx.recyclerview.widget.AsyncListDiffer; +import androidx.recyclerview.widget.DiffUtil; import androidx.recyclerview.widget.RecyclerView; import net.ktnx.mobileledger.App; import net.ktnx.mobileledger.R; -import net.ktnx.mobileledger.model.Data; import net.ktnx.mobileledger.model.LedgerTransaction; import net.ktnx.mobileledger.model.LedgerTransactionAccount; import net.ktnx.mobileledger.model.TransactionListItem; +import net.ktnx.mobileledger.ui.MainModel; import net.ktnx.mobileledger.utils.Colors; import net.ktnx.mobileledger.utils.Globals; +import net.ktnx.mobileledger.utils.Logger; import net.ktnx.mobileledger.utils.Misc; import net.ktnx.mobileledger.utils.SimpleDate; import java.text.DateFormat; import java.util.GregorianCalendar; +import java.util.List; +import java.util.Locale; import java.util.TimeZone; public class TransactionListAdapter extends RecyclerView.Adapter { + private final MainModel model; + private final AsyncListDiffer listDiffer; + public TransactionListAdapter(MainModel model) { + super(); + this.model = model; + + listDiffer = new AsyncListDiffer<>(this, new DiffUtil.ItemCallback() { + @Override + public boolean areItemsTheSame(@NonNull TransactionListItem oldItem, + @NonNull TransactionListItem newItem) { + if (oldItem.getType() != newItem.getType()) + return false; + switch (oldItem.getType()) { + case DELIMITER: + return (oldItem.getDate() + .equals(newItem.getDate())); + case TRANSACTION: + return oldItem.getTransaction() + .getId() == newItem.getTransaction() + .getId(); + default: + throw new IllegalStateException( + String.format(Locale.US, "Unexpected transaction item type %s", + oldItem.getType())); + } + } + @Override + public boolean areContentsTheSame(@NonNull TransactionListItem oldItem, + @NonNull TransactionListItem newItem) { + switch (oldItem.getType()) { + case DELIMITER: + // Delimiters items are "same" for same dates and the contents are the date + return true; + case TRANSACTION: + return oldItem.getTransaction() + .equals(newItem.getTransaction()); + default: + throw new IllegalStateException( + String.format(Locale.US, "Unexpected transaction item type %s", + oldItem.getType())); + + } + } + }); + } public void onBindViewHolder(@NonNull TransactionRowHolder holder, int position) { - TransactionListItem item = TransactionListViewModel.getTransactionListItem(position); + TransactionListItem item = listDiffer.getCurrentList() + .get(position); // in a race when transaction value is reduced, but the model hasn't been notified yet // the view will disappear when the notifications reaches the model, so by simply omitting @@ -73,8 +124,8 @@ public class TransactionListAdapter extends RecyclerView.Adapter newList) { + Logger.debug("transactions", + String.format(Locale.US, "Got new transaction list (%d items)", newList.size())); + listDiffer.submitList(newList); } enum LoaderStep {HEAD, ACCOUNTS, DONE} @@ -130,12 +188,11 @@ public class TransactionListAdapter extends RecyclerView.Adapter