iOS学习笔记--tableView多选实现

本文介绍使用tableView自带的方法来实现多选功能。

@property(nonatomic,strong)UITableView *  tmptabelView;
@property(nonatomic,strong)NSMutableArray * saveArray;
@property(nonatomic,strong)NSMutableArray * array;

self.array = [NSMutableArray arrayWithObjects:@"普通话",@"英语",@"法语",@"俄语",@"日语",@"韩语",@"德语",@"西班牙语",@"泰语",@"小语种",nil];

self.saveArray = [NSMutableArray array];

self.tmptabelView = [[UITableView alloc]initWithFrame:CGRectMake(0, 0, 300, 400)];
    
    [self.tmptabelView setBackgroundColor:[UIColor whiteColor]];
    
   
    [self.tmptabelView setDelegate:self];
    
    [self.tmptabelView setDataSource:self];
    
    self.tmptabelView.editing = YES;
    
    self.tmptabelView.allowsMultipleSelectionDuringEditing = YES;
    
    [self.view addSubview:self.tmptabelView];

-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
    return self.array.count;
    
}
-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    static NSString * ID = @"ID";
    
    UITableViewCell * cell = [tableView dequeueReusableCellWithIdentifier:ID];

    if (!cell)
    {
        cell = [[UITableViewCell alloc]initWithStyle:(UITableViewCellStyleDefault) reuseIdentifier:ID];
    }
    
    [cell.textLabel setText:[NSString stringWithFormat:@"%@",self.array[indexPath.row]]];
    
    cell.selectedBackgroundView = [[UIView alloc] init];
    
    return cell;
}

-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{   
  //将选中的元素保存 
  [self.saveArray addObject:self.array[indexPath.row]];

}

- (void)tableView:(UITableView *)tableView didDeselectRowAtIndexPath:(NSIndexPath *)indexPath{
    
    
    if (self.array.count > indexPath.row)
    {
        
        //将选中的元素移除
        if (self.saveArray.count > 0)
        {
            
            [self.saveArray removeObject:self.array[indexPath.row]];
                  
        }
    }
    
}

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