IOS 表视图(UITableVIew)的使用方法(6)表视图的编辑功能（新增Add）

            #pragma mark
#pragma mark Table View data source
//setEditing:animated:后被调用
//询问具体Cell是不是支持编辑
-(BOOL)tableView:(UITableView *)tableView canEditRowAtIndexPath:(NSIndexPath *)indexPath
{
    return YES;
}

-(void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath
{
    NSMutableArray *arrNewDatasource=[NSMutableArray arrayWithArray:self.datasource];
    
    //cell新增处理if(editingStyle == UITableViewCellEditingStyleInsert)
    {
        //新建一个HBPlayer对象
        HBPlayerInfo *newPlayer=[[HBPlayerInfo alloc]init];
        newPlayer.name=@"My Player";
        newPlayer.role=@"GoalKeeper";
        newPlayer.number=@"19";
        
        //插入        [arrNewDatasource insertObject:newPlayer atIndex:indexPath.row];
        
        //更新datasource
        _datasource = [[NSArray alloc]initWithArray:arrNewDatasource];
        
        //更新界面        [self.tableView insertRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationFade];
    }
}

-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    static NSString *CellIdentifier = @"InfoTableViewCellId";
    HBCustomCell *cell =(HBCustomCell *)[tableView dequeueReusableCellWithIdentifier:CellIdentifier];
    
    if(cell == nil)
    {
        NSArray *arrNib=[[NSBundle mainBundle]loadNibNamed:@"CustomView" owner:self options:nil];
        if(arrNib)
        {
            //第一个元素就是需要的UITableViewCell
            cell=(HBCustomCell *)[arrNib objectAtIndex:0];
        }
    }
    
    UIImage *photo = nil;
    HBPlayerInfo *onePlayer=[self.datasource objectAtIndex:indexPath.row];
    if(onePlayer)
    {
        cell.playerName.text=onePlayer.name;
        cell.playerName.font=[UIFont fontWithName:@"Helvetica" size:16.0f];
        cell.playerRole.text=onePlayer.role;
        cell.playerRole.font=[UIFont fontWithName:@"Helvetica" size:12.0f];
        cell.playerNumber.text=[NSString stringWithFormat:@"No.%@",onePlayer.number];
        
        //插入时，更新界面的方法insertRowsAtIndexPaths会调用cellForRowAtIndexPath询问具体的UITableViewCell
        //所以这里考虑为插入的元素准备的空头像
        photo=[UIImage imageNamed:@"gaolin.jpeg"];
        if(!photo)
        {
            photo=[UIImage imageNamed:@"empty"];
        }
        cell.playerPhoto.image=photo;
    }
    return cell;
}

#pragma mark
#pragma mark TableView Delegate
-(UITableViewCellEditingStyle)tableView:(UITableView *)tableView editingStyleForRowAtIndexPath:(NSIndexPath *)indexPath
{
    return UITableViewCellEditingStyleInsert;
    
    /*
    //只有编辑状态时，才有删除功能
    //由于手指左划显示“Delete”按钮并不处于编辑状态，所以会被屏蔽掉
    if(self.tableView.editing)
    {
        return UITableViewCellEditingStyleDelete;
    }
    return UITableViewCellEditingStyleNone;
     */
}