UITableView
次のコードで更新しようとしています。
NSMutableIndexSet *sectionsToDelete = [NSMutableIndexSet indexSet];
NSMutableIndexSet *sectionsToInsert = [NSMutableIndexSet indexSet];
NSMutableIndexSet *sectionsToReload = [NSMutableIndexSet indexSet];
/* ... */
[[self tableView] beginUpdates];
if ([sectionsToReload count]) {
DBGLogObject(sectionsToReload);
[[self tableView] reloadSections:sectionsToReload withRowAnimation:animation];
}
if ([sectionsToDelete count]) {
DBGLogObject(sectionsToDelete);
[[self tableView] deleteSections:sectionsToDelete withRowAnimation:animation];
}
if ([sectionsToInsert count]) {
DBGLogObject(sectionsToInsert);
[[self tableView] insertSections:sectionsToInsert withRowAnimation:animation];
}
[[self tableView] endUpdates];
ログ:
sectionsToReload = <NSMutableIndexSet: 0x71b19f0>[number of indexes: 2 (in 1 ranges), indexes: (1-2)]
sectionsToInsert = <NSMutableIndexSet: 0x71ac570>[number of indexes: 3 (in 2 ranges), indexes: (0 3-4)]
sectionsToDelete
(ログにないことに注意してください。)
問題は、削除がなくてもエラーが発生することです。
2012-10-04 19:21:16.769 Syntax[903:c07] *** Assertion failure in -[UITableView _endCellAnimationsWithContext:], /SourceCache/UIKit_Sim/UIKit-2372/UITableView.m:826
2012-10-04 19:24:51.655 Syntax[903:c07] *** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'attempt to delete section 2, but there are only 2 sections before the update'
何か案は?