UITableView: Exception when Moving a Section and Reloading a Row
| Originator: | adlai | ||
| Number: | rdar://27041784 | Date Originated: | 06-27-2016 |
| Status: | Open | Resolved: | |
| Product: | iOS | Product Version: | 9.3 |
| Classification: | Other Bug | Reproducible: | Always |
Area:
UIKit
Summary:
Attempting to reload a row and move a section in the same batch update generates an exception with bad math.
Steps to Reproduce:
// Start with 2 sections with some rows
[tableView beginUpdates]
[tableView reloadRowsAtIndexPaths:@[ {1, 0} ]]
[tableView moveSection:1 toSection:0]
[tableView endUpdates]
Expected Results:
The sections switch places, and the first row in the second section reloads.
Actual Results:
Assertion failure: "Invalid update: invalid number of rows in section 0. The number of rows contained in an existing section after the update (3) must be equal to the number of rows contained in that section before the update (3), plus or minus the number of rows inserted or deleted from that section (0 inserted, 1 deleted) and plus or minus the number of rows moved into or out of that section (0 moved in, 0 moved out)."
Version:
iOS 9.3
Notes:
Configuration:
iPhone Simulator
Comments
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