在tableview自定义单元格中的图像上长按手势

Question

我需要一些帮助。今天，我正在处理表格视图自定义单元格，其中单元格包含UIImageView。在 ImageView 上，我想实现长手势。我为此实现了下面给出的代码..但我在我的代码中做错了。在这个视图中长按一次调整大小但我希望在几秒钟后它可以被删除并返回表格视图单元格 谁能推荐我？？？？

更新：

这是代码！

- (void)celllongpressed:(UILongPressGestureRecognizer *)gesture
{

if (gesture.state == UIGestureRecognizerStateBegan)
{
    cell = (ActivityFeedCell *)[gesture view];
}
if (gesture.state == UIGestureRecognizerStateChanged)
{
    cell = (ActivityFeedCell *)[gesture view];
    logGes_view=[[UIView alloc]initWithFrame:CGRectMake(5, 0,self.view.frame.size.width-10,self.view.frame.size.height)];
    image=[[UIImageView alloc]initWithFrame:CGRectMake(0, 80,self.view.frame.size.width, self.view.frame.size.height-80)];
    image.image=cell.updated_imgView.image;
    UILabel *name_label=[[UILabel alloc]initWithFrame:CGRectMake(10, 15, 150, 30)];
    //city_label.backgroundColor=[UIColor yellowColor];
    name_label.text=lgGesNamelbl;
    UILabel *city_label=[[UILabel alloc]initWithFrame:CGRectMake(10, 50, 180, 30)];
    //city_label.backgroundColor=[UIColor yellowColor];
    city_label.text=lgGesCitylbl;
    [logGes_view addSubview:city_label];
      [logGes_view addSubview:name_label];
    [logGes_view addSubview:image];
    logGes_view.backgroundColor=[UIColor whiteColor];
    [self.view addSubview:logGes_view];
}
if (gesture.state == UIGestureRecognizerStateEnded)
{
   // cell = (ActivityFeedCell *)[gesture view];
    [logGes_view removeFromSuperview];
}
}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
UILongPressGestureRecognizer *gesture1 = [[UILongPressGestureRecognizer alloc] initWithTarget:self action:@selector(celllongpressed:)];
[gesture1 setDelegate:self];
[gesture1 setMinimumPressDuration:1.0];
[ cell setUserInteractionEnabled:YES];
[cell addGestureRecognizer:gesture1];
}

Answer 1

        UILongPressGestureRecognizer *reconizer=[[UILongPressGestureRecognizer alloc]initWithTarget:self action:@selector(handleLongPress:)];
                   [reconizer setMinimumPressDuration:1.0];
                 [cell addGestureRecognizer:reconizer];


-(void)handleLongPress:(UILongPressGestureRecognizer*)reconizer
{
if (gesture.state == UIGestureRecognizerStateBegan)
{
    UITableViewCell *cell = (UITableViewCell *)[gesture view];
    NSIndexPath *indexPath = [tableview indexPathForCell:cell];
    NSString *s = [NSString stringWithFormat: @"row=%1ld",(long)indexPath.row];
    [self setTitle: s];
}
if (gesture.state == UIGestureRecognizerStateChanged)
{
 cell = (UITableViewCell *)[gesture view];
    cell.updated_imgView.frame=CGRectMake(0, 0, tableview.frame.size.width, tableview.frame.size.height);
       }
if (gesture.state == UIGestureRecognizerStateEnded)
{
 cell = (UITableViewCell *)[gesture view];
    cell.updated_imgView.frame=CGRectMake(0, 0, 100, 100);
}

}

-(BOOL)canBecomeFirstResponder
{
    return YES;
}

Answer 2

[cell addGestureRecognizer:gesture1]

用下面一行替换

[ cell.yourimageview setUserInteractionEnabled:YES];  // This enable user interaction on the image view. Required!!


[cell.yourimageview addGestureRecognizer:gesture1];  //yourimageview is your image outlet

Answer 3

试试看： 单元格是 imageView 的超级视图，因此大小更改不会跨单元格框架 调整大小后添加到mainView中。