我有一个应用程序可以重新排列 UITableViewCells 的顺序并可以删除单元格但是，我需要一种方法来保存重新排列和删除的表格视图单元格的顺序。我正在使用 nsmutablearray
- (void)viewDidLoad
{
[super viewDidLoad];
if (!maTheData) {
maTheData = [[NSMutableArray alloc] initWithObjects:@"Bus", @"Truck", @"Car",nil];
}
}
- (NSInteger)numberOfSectionsInTableView: (UITableView *)tableView
{
return 1;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return [maTheData count];
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"tvcItems"];
UILabel *lblName = (UILabel *)[cell viewWithTag:100];
[lblName setText:[maTheData objectAtIndex: [indexPath row]]];
return cell;
}
- (void)tableView:(UITableView *)tableView commitEditingStyle: (UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath
{
if (editingStyle == UITableViewCellEditingStyleDelete) {
// Delete the row from the data source
[maTheData removeObjectAtIndex:[indexPath row]];
// Delete row using the cool literal version of [NSArray arrayWithObject:indexPath]
[tableView deleteRowsAtIndexPaths:@[indexPath] withRowAnimation:UITableViewRowAnimationFade];
}
else if (editingStyle == UITableViewCellEditingStyleInsert) {
// Insert something into the array, and you can just add a populated NSIndexPath of data or simplr reload data
[maTheData addObject:@"I'm a new item!"];
[tableView reloadData];
}
}
- (void)tableView:(UITableView *)tableView moveRowAtIndexPath:(NSIndexPath *)fromIndexPath toIndexPath:(NSIndexPath *)toIndexPath
{
NSString *mover = [maTheData objectAtIndex: [fromIndexPath row]];
[maTheData removeObjectAtIndex:[fromIndexPath row]];
[maTheData insertObject:mover atIndex:[toIndexPath row]];
[tableView setEditing:NO animated:YES];
}
- (BOOL)tableView:(UITableView *)tableView canMoveRowAtIndexPath:(NSIndexPath *)indexPath
{
return YES;
}
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
[tableView setEditing:YES animated:YES];
}