我有一个工作表视图，我可以双击一个单元格，它会在下面添加一个“动作”单元格，上面有四个按钮。今天我将字母部分添加到表格视图和部分索引中，但我无法再使用此功能。我已经在代码中添加了一系列 NSLogs 来尝试找到问题，但我不能，它似乎试图在同一部分添加一行，并且比点击的单元格更靠下一行，所以我我不确定问题是什么。有人知道我做错了什么吗？如果有人能对此有所了解，我将不胜感激。（如果我的代码繁琐或难以理解，我深表歉意，我是新手，所以请随时提出我可以改进的建议！）
- (void)viewDidLoad
{
//I start with an array of objects, so I created two arrays; one containing the first letters of each Name, and a list of the number of objects that start with each of those names.
nameIndex = [[NSMutableArray alloc] init];
nameIndexCount = [[NSMutableDictionary alloc]init];
}
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
return [nameIndex count];
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
if (self.actionRowIndexPath) {
//Returns first letter of the section
NSString *alphabet = [nameIndex objectAtIndex:section];
//Returns the number of entries starting with that letter
NSString *numberofRows = [nameIndexCount objectForKey:alphabet];
int intNumberOfRows = ([numberofRows integerValue] + 1);
return intNumberOfRows;
} else {
NSString *alphabet = [nameIndex objectAtIndex:section];
NSString *numberofRows = [nameIndexCount objectForKey:alphabet];
int intNumberOfRows = [numberofRows integerValue];
return intNumberOfRows;
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"newTableViewCell"];
if (!cell) {
cell = [[UITableViewCell alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:@"newTableViewCell"];
}
//Configure the cell
UIImageView *imageView = [[UIImageView alloc]initWithFrame:cell.frame];
UIImage *image = [UIImage imageNamed:@"LightGrey.png"];
imageView.image = image;
if ([indexPath isEqual:self.actionRowIndexPath]) {
// Four UIButtons coded programmatically
} else {
Contact *p = [[[ContactStore sharedStore]allContacts]objectAtIndex:totalNumberOfRows];
NSString *firstAndLastName = [NSString stringWithFormat:@"%@ %@", [p firstName], [p lastName]];
indexPath = [self modelIndexPath:indexPath];
cell.backgroundView = imageView;
// [cell.imageView setImage:smallThumbnailImage];
[cell.imageView setImage:[p thumbnail]];
[[cell textLabel]setBackgroundColor:[UIColor clearColor]];
[[cell textLabel]setText:firstAndLastName];
[[cell detailTextLabel]setBackgroundColor:[UIColor clearColor]];
[[cell detailTextLabel]setText:[p phoneNumber]];
totalNumberOfRows = totalNumberOfRows + 1;
}
return cell;
}
#pragma mark - Action Row Support
-(NSIndexPath *)modelIndexPath: (NSIndexPath *)indexPath
{
if (self.actionRowIndexPath == nil) {
return indexPath;
}
if ([indexPath row] > [self.actionRowIndexPath row]) {
return [NSIndexPath indexPathForRow:([indexPath row] - 1) inSection:indexPath.section];
}
return indexPath;
}
- (void)handleDoubleTap:(UITapGestureRecognizer *)recognizer {
NSLog(@"Double tap");
CGPoint p = [recognizer locationInView:self.tableView];
NSIndexPath *indexPath = [self.tableView indexPathForRowAtPoint:p];
NSIndexPath *pathToDelete = self.actionRowIndexPath;
_selectedIndexPath = [self modelIndexPath:_selectedIndexPath];
//Is the user deselecting current row?
if (_actionRowIndexPath) {
[self.tableView deselectRowAtIndexPath:_selectedIndexPath animated:NO];
self.selectedIndexPath = nil;
self.actionRowIndexPath = nil;
} else {
//Selecting a new row
self.selectedIndexPath = indexPath;
self.actionRowIndexPath= [NSIndexPath indexPathForRow:([indexPath row] + 1) inSection:[indexPath section]];
}
[self.tableView beginUpdates];
if (pathToDelete) {
[self.tableView deleteRowsAtIndexPaths:[NSArray arrayWithObject:pathToDelete] withRowAnimation:UITableViewRowAnimationAutomatic];
}
if (self.actionRowIndexPath) {
[self.tableView insertRowsAtIndexPaths:[NSArray arrayWithObject:self.actionRowIndexPath] withRowAnimation:UITableViewRowAnimationAutomatic];
}
[self.tableView endUpdates];
}