我已经搜索和搜索,我似乎无法找到我的问题的答案。我有一个 3 行的动态表格视图(每行是一个部分)和表格视图右上角的一个编辑按钮。每次用户点击编辑时,都必须可以添加或删除一行。除了 + 按钮被粘贴以添加新行时,一切正常。这是我的代码:
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
return 3;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
int count = [myarray count];
if (myarray != nil) count ++;
return count;
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
id cell;
switch(indexPath.section) {
case 0:
if(indexPath.row==0) {
static NSString *cellType1 = @"cellType1";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:cellType1];
return cell;
}
break;
case 1:
if(indexPath.row==0) {
static NSString *cellType2= @"cellType2";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:cellType2];
return cell;
}
break;
case 2:
if(indexPath.row==0) {
static NSString *cellType3= @"cellType3";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:cellType3];
return cell;
}
break;
default:
break;
}
return cell;
}
- (IBAction) EditTable:(id)sender
{
if(self.editing)
{
[super setEditing:NO animated:NO];
[Table setEditing:NO animated:NO];
[Table reloadData];
[self.navigationItem.rightBarButtonItem setTitle:@"Edit"];
[self.navigationItem.rightBarButtonItem setStyle:UIBarButtonItemStylePlain];
}
else
{
[super setEditing:YES animated:YES];
[Table setEditing:YES animated:YES];
[Table reloadData];
[self.navigationItem.rightBarButtonItem setTitle:@"Ok"];
[self.navigationItem.rightBarButtonItem setStyle:UIBarButtonItemStyleDone];
}
}
- (UITableViewCellEditingStyle)tableView:(UITableView *)aTableView editingStyleForRowAtIndexPath:(NSIndexPath *)indexPath
{
if (self.editing == NO || !indexPath) return UITableViewCellEditingStyleNone;
if (self.editing && indexPath.row == ([myarray count]))
{
return UITableViewCellEditingStyleInsert;
} else
{
return UITableViewCellEditingStyleDelete;
}
return UITableViewCellEditingStyleNone;
}
- (void)tableView:(UITableView *)TableView commitEditingStyle: (UITableViewCellEditingStyle)editingStyle
forRowAtIndexPath:(NSIndexPath *)indexPath
{
if (editingStyle == UITableViewCellEditingStyleDelete)
{
[myarray removeObjectAtIndex:indexPath.row];
[Table reloadData];
} else if (editingStyle == UITableViewCellEditingStyleInsert)
{
switch(indexPath.section) {
case 0:
if(indexPath.row==0) {
static NSString *cellType1 = @"cellType1";
UITableViewCell *cell = [TableView dequeueReusableCellWithIdentifier:cellType1];
[arry insertObject:cell atIndex:[myarray count]];
[Table reloadData];
}
break;
case 1:
if(indexPath.row==0) {
static NSString *cellType2= @"cellType2";
UITableViewCell *cell = [TableView dequeueReusableCellWithIdentifier:cellType2];
[arry insertObject:cell atIndex:[myarray count]];
}
break;
case 2:
if(indexPath.row==0) {
static NSString *cellType3= @"cellType3";
UITableViewCell *cell = [TableView dequeueReusableCellWithIdentifier:cellType3];
[arry insertObject:cell atIndex:[myarray count]];
}
break;
default:
break;
}
}
正如我之前所说,一切正常,直到我按下 + 按钮(按下编辑按钮时显示在左侧)添加新行。然后它显示一个错误:'UITableView 数据源必须从 tableView:cellForRowAtIndexPath 返回一个单元格。
我究竟做错了什么?非常感激任何的帮助。