iOS滑动以从UITableView删除plist中的数组

Question

I have a UITableView and in each row is the name of an array in a plist . This means that when I try and use the normal swipe to delete method of:

[tableView deleteRowsAtIndexPaths:indexPaths withRowAnimation:UITableViewRowAnimationAutomatic]

The app crashes. How can I tell the swipe to delete to find the array in the plist and delete it?

Answer 1

It is not enough to delete the row being displayed in the table view. You also have to remove the item from your data array. Presumably you have a NSMutableArray that reads in the plist at the beginning. (If it is just an NSArray , change it to mutable!)

Just after deleting the row, delete the data from the array

[myDataArray removeObjectAtIndex:indexPath.row];

If you have sections, you first would have to figure out the position of your object in the array, but the principle is the same.

You can now optionally write the changes to disk by overwriting your existing plist with the contents of your data array.