在UITableViewController
我使用YapDatabase和Mantle排序方式如下:
YapDatabaseViewSorting *viewSorting = [YapDatabaseViewSorting withObjectBlock:^NSComparisonResult(NSString *group, NSString *collection1, NSString *key1, XQBuilding *object1, NSString *collection2, NSString *key2, XQBuilding *object2) {
if ([group isEqualToString:XQBuildingsViewGroupName]) {
return [[object1 name] compare:[object2 name] options:NSNumericSearch];
}
if ([group isEqualToString:XQPicturesGroup]) {
return [[object1 updatedAt] compare:[object2 updatedAt]];
}
return NSOrderedSame;
}];
YapDatabaseViewOptions *options = [[YapDatabaseViewOptions alloc] init];
options.isPersistent = NO;
YapDatabaseView *databaseView = [[YapDatabaseView alloc] initWithGrouping:viewGrouping sorting:viewSorting versionTag:@"" options:options];
虽然我有时使用的选项(当编辑的名称更改列表中已编辑的项目顺序时)在阅读时不正确indexPath
:
- (UITableViewCell*)editableTableView:(UITableView *)tableView simpleCellForIndexPath:(NSIndexPath *)indexPath
{
__block XQBuilding *building;
__block NSNumber *gla;
[self.readConnection readWithBlock:^(YapDatabaseReadTransaction *transaction) {
building = [[transaction ext:XQBuildingListYapName] objectAtIndexPath:indexPath withMappings:self.tableViewAnimator.viewMappings];
gla = [building glaWithTransaction:transaction];
}];
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"BuildingCell"];
cell.textLabel.text = building.name;
cell.detailTextLabel.text = [NSString stringWithFormat: @"%@ sqm", formatDecimal(gla)];
return cell;
}
我。即在这种情况下,building
与编辑的不同。如何根据实际排序获得正确的indexPath
?
答案 0 :(得分:0)
有很多东西应该正确编码,以使其正常工作!
正如我从您的代码中看到的那样,您使用了YapDatabaseViewMappings
。您是否使用LongLivedReadTransactions
并订阅YapDatabaseModifiedNotification
以正确修改数据库更改表?
有一个simplified example that shows如何使用所有这些东西在数据库更新后立即实时更新UITableView
。