这篇博客介绍了如何在iOS应用中为UITableView添加长按手势识别器，实现当用户长按表格单元格时弹出编辑和删除选项的功能。通过创建UILongPressGestureRecognizer，监听状态变化，并设置相应的方法来显示UIMenuController，提供‘分享’和‘登录’的选项。点击选项会触发相应的回调方法进行处理。
mainCollectionViewCell *viewcell = [mainCollectionViewCell cellWithTableView:tableView];
if (viewcell.gestureRecognizers.count==0) {
UILongPressGestureRecognizer *longPre = [[UILongPressGestureRecognizer alloc]initWithTarget:self action:@selector(display:)];
[viewcell addGestureRecognizer:longPre];
}
return viewcell;
}
-(void)display:(UILongPressGestureRecognizer *)longPre{
if (longPre.state==UIGestureRecognizerStateBegan) {
mainCollectionViewCell *viewcell = (mainCollectionViewCell *)longPre.view;
[viewcell becomeFirstResponder];
UIMenuItem *item1 = [[UIMenuItem alloc]initWithTitle:@"分享"action:@selector(share:)];
UIMenuItem *item2 = [[UIMenuItem alloc]initWithTitle:@"登录"action:@selector(login:)];
UIMenuController *menu = [UIMenuController sharedMenuController];
[menu setMenuItems:@[item1,item2]];
[menu setTargetRect:viewcell.frame inView:self.view];
[menu setMenuVisible:YES animated:YES];
}
}
-(void)share:(id)sender{
NSLog(@"分享");
}
-(void)login:(id)sender{
NSLog(@"登录");
}
-(BOOL)canBecomeFirstResponder{
return YES;
}
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