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TableViewCell自定义左滑手势

2016-07-15  本文已影响482人  忘仙

1.首先看看系统的左滑的方法


- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath{
    if (editingStyle == UITableViewCellEditingStyleDelete) {
//此处写要删除的内容
        CollectionGoodsModel *goodsModel = _collectionListSource[indexPath.row];
        NSString *collected_id = goodsModel.collect_id;
        __weak typeof(self) wSelf = self;
        UIView *view=[[UIView alloc]initWithFrame:CGRectMake(0, 0, SCREEN_WIDTH, SCREEN_HEIGHT-64)];
        view.backgroundColor=[UIColor clearColor];
        [self.view addSubview:view];
        //        [LBProgressHUD showHUDto:view text:@"正在加载..."];
        [FFService deleteCollectGoods:collected_id view:nil callback:^(id obj,NSError* error) {
            ShoppingCarCommon *shopCommon = obj;
            [LBProgressHUD hideAllHUDs];
            if (shopCommon.success) {
//删除哪一行
                [wSelf.collectionListSource removeObjectAtIndex:indexPath.row];
                [wSelf.myTableView reloadData];
                [view removeFromSuperview];
            }
        }];
    }
}

- (NSString *)tableView:(UITableView *)tableView titleForDeleteConfirmationButtonForRowAtIndexPath:(NSIndexPath *)indexPath{
    return @"取消收藏";//向左滑动显示的文字
}

2.自定义左滑手势

废话少说,直接看代码

@property (nonatomic, strong) UISwipeGestureRecognizer *leftSwipe;
@property (nonatomic, strong) UISwipeGestureRecognizer *rightSwipe;
@property (nonatomic, strong) UILabel *swipeLabel;
@property (nonatomic, strong) UILabel *deleteLabel;

-(void)initViews{

    _deleteLabel = [[UILabel alloc] initWithFrame:CGRectMake([UIScreen mainScreen].bounds.size.width, 0, 100, self.bounds.size.height)];
    _deleteLabel.text = @"删除";
    _deleteLabel.textAlignment = NSTextAlignmentCenter;
    _deleteLabel.backgroundColor = [UIColor greenColor];
    [self addSubview:_deleteLabel];
//然后向_deleteLabel添加事件或者代理方法,在事件中执行删除或者其他操作
    
    _swipeLabel = [[UILabel alloc] initWithFrame:CGRectMake(0, 0, [UIScreen mainScreen].bounds.size.width, self.bounds.size.height)];
    _swipeLabel.text = @"咬定青山不放松";
    [self addSubview:_swipeLabel];
    self.leftSwipe = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(handleSwipes:)];
    self.rightSwipe = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(handleSwipes:)];
    
    self.leftSwipe.direction = UISwipeGestureRecognizerDirectionLeft;
    self.rightSwipe.direction = UISwipeGestureRecognizerDirectionRight;
    
    [self addGestureRecognizer:self.leftSwipe];
    [self addGestureRecognizer:self.rightSwipe];
    
    
}

- (void)handleSwipes:(UISwipeGestureRecognizer *)sender
{
    if (sender.direction == UISwipeGestureRecognizerDirectionLeft) {
//改变位置
        _swipeLabel.transform = CGAffineTransformMakeTranslation(-100, 0);
        _deleteLabel.transform = CGAffineTransformMakeTranslation(-100, 0);
        
    }
    
    if (sender.direction == UISwipeGestureRecognizerDirectionRight) {
//还原
        _swipeLabel.transform = CGAffineTransformIdentity;
        _deleteLabel.transform = CGAffineTransformIdentity;
    }
}

这是最简单的方法,当然后面还有一些逻辑判断,如有需要,请道友自行解决

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