我需要一些帮助。今天,我正在研究 TableView 自定义单元格,其中单元格包含一个 UIImageView
。在 ImageView 上,我想实现长手势。我为此实现了下面给出的代码。但是我在我的代码中做错了。在此 View 中,长按会调整一次大小,但我希望几秒钟后它可以被删除并返回到表格 View 单元格中
任何人都可以建议我吗????
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];
}
最佳答案
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;
}
关于ios - 在表格 View 自定义单元格中的图像上长按手势,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/38610913/