[英]Long press gesture on image in tableview custom cell
I need some help. 我需要协助。 Today, I am working on table view custom cell where the cell contains an
UIImageView
. 今天,我正在处理表格视图自定义单元格,其中该单元格包含一个
UIImageView
。 On the ImageView, I want to implement the long gesture. 我要在ImageView上实现长手势。 I implement code for this that is give below.. But I am doing something wrong in my code.In this the View is resize once on long press but i want after the some seconds it can be remove and come back in table view cell Can anyone Suggest me????
我实现下面给出的代码。但是我在代码中做错了。在这种情况下,长按一次即可重新调整视图的大小,但是我希望在几秒钟后可以将其删除并返回到表格视图单元格中有人建议我吗???
Update: 更新:
Here's the code! 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];
}
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;
}
[cell addGestureRecognizer:gesture1]
replace with below line 用下面的行替换
[ cell.yourimageview setUserInteractionEnabled:YES]; // This enable user interaction on the image view. Required!!
[cell.yourimageview addGestureRecognizer:gesture1]; //yourimageview is your image outlet
尝试一下:单元格是imageView的超级视图,因此在更改大小时不会改变单元格的大小,而是在调整大小后将其添加到mainView中。
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