对TableView进行单元格的添加删除

对TableView进行单元格的添加删除

- (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
self.navigationItem.rightBarButtonItem = self.editButtonItem;
self.navigationItem.title = @"单元格插入和删除";

self.textField.hidden = YES;
self.textField.delegate = self;

self.tableView.delegate = self;
self.tableView.dataSource = self;

self.listTeams = [[NSMutableArray alloc] initWithObjects:@"黑龙江",@"吉林",@"梁宁", nil];
}

- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}

- (void)setEditing:(BOOL)editing animated:(BOOL)animated{
[super setEditing:editing animated:animated];
[self.tableView setEditing:editing animated:YES];
if (editing) {
self.textField.hidden = NO;
}else{
self.textField.hidden = YES;
}
}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{
return self.listTeams.count + 1;
}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{
static NSString *CellIdentifier = @"Cell";
BOOL b_addCell = (indexPath.row == self.listTeams.count);
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
}
if (!b_addCell) {
cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator;
cell.textLabel.text = [self.listTeams objectAtIndex:indexPath.row];
} else {
self.textField.frame = CGRectMake(10, 0, 300, 44);
self.textField.text = @"";
[cell.contentView addSubview:self.textField];
}
return cell;
}

//编辑
- (UITableViewCellEditingStyle)tableView:(UITableView *)tableView editingStyleForRowAtIndexPath:(NSIndexPath *)indexPath{
if (indexPath.row == [self.listTeams count]) {
return UITableViewCellEditingStyleInsert;
}else{
return UITableViewCellEditingStyleDelete;
}
}

//提交编辑
- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath{
if (editingStyle == UITableViewCellEditingStyleDelete) {
[self.listTeams removeObjectAtIndex:indexPath.row];
[self.tableView deleteRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationFade];
[self.tableView reloadData];
}else if (editingStyle == UITableViewCellEditingStyleInsert){
[self.listTeams insertObject:self.textField.text atIndex:[self.listTeams count]];
[self.tableView insertRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationFade];
[self.tableView reloadData];
}
}

//高亮
- (BOOL)tableView:(UITableView *)tableView shouldHighlightRowAtIndexPath:(NSIndexPath *)indexPath{
if (indexPath.row == [self.listTeams count]) {
return NO;
}else{
return YES;
}
}

//单元格高度
- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath{
return 50;
}

//返回按钮
- (BOOL)textFieldShouldReturn:(UITextField *)textField{
[textField resignFirstResponder];
return YES;
}

- (void)textFieldDidBeginEditing:(UITextField *)textField{
//返回textField的所在单元格
UITableViewCell *cell = (UITableViewCell *)[[textField superview] superview];
[self.tableView setContentOffset:CGPointMake(0.0, cell.frame.origin.y) animated:YES];
}