我需要一些帮助。今天,我正在研究表视图自定义单元格,其中单元格包含UIImageView
。在ImageView上,我想实现长手势。我实现了下面给出的代码。但是我在我的代码中做错了。在这里,View在长按时调整大小一次,但我希望在几秒后它可以删除并返回表视图单元格
谁能建议我????
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];
}
答案 0 :(得分:0)
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;
}
答案 1 :(得分:-1)
[cell addGestureRecognizer:gesture1]
替换为以下行
[ cell.yourimageview setUserInteractionEnabled:YES]; // This enable user interaction on the image view. Required!!
[cell.yourimageview addGestureRecognizer:gesture1]; //yourimageview is your image outlet
答案 2 :(得分:-1)
试一试: Cell是imageView的超级视图,因此在改变大小时不会跨越单元格框架 调整大小后将其添加到mainView。