Ios development Implementation of UITableViewCell pop-up UIMenuController

This function is required in the project. I found some documents on the Internet, and some of them are not very clear. The implementation steps are as follows:

1. Add UILongPressGestureRecognizer to the cell and handle the event accordingly.

-(UITableViewCell *) tableView :( UITableView *) tableView cellForRowAtIndexPath :( NSIndexPath
*) IndexPath

{

..............

UILongPressGestureRecognizer * longPressGesture = [[UILongPressGestureRecognizer alloc] initWithTarget: selfaction: @ selector (cellLongPress :)];

[Cell addGestureRecognizer: longPressGesture];

Return cell;

}

2. Configure and display UIMenuController

-(Void) cellLongPress UIGestureRecognizer *) recognizer {

If (recognizer. state =
UIGestureRecognizerStateBegan ){

CGPoint location = [recognizer
LocationInView: self];

NSIndexPath * indexPath = [self
IndexPathForRowAtPoint: location];

UIMyTableViewCell * cell = (UIMyTableViewCell *) recognizer. view;

// Use cell as the first response here (cell cannot be a responder by default, and the canBecomeFirstResponder method needs to be rewritten)

[Cell becomeFirstResponder];

UIMenuItem * itCopy = [UIMenuItem
Alloc] initWithTitle: @ "copy"
Action: @ selector (handleCopyCell :)];

UIMenuItem * itDelete = [UIMenuItem
Alloc] initWithTitle: @ "delete"
Action: @ selector (handleDeleteCell :)];

UIMenuController * menu = [UIMenuController
SharedMenuController];

[Menu setMenuItems: [NSArray arrayWithObjects: itCopy,
ItDelete, nil];

[Menu
SetTargetRect: cell. frame inView: self];

[Menu setMenuVisible: YES
Animated: YES];

[ItCopy release];

[ItDelete release];

}

}

-(Void) handleCopyCell :( id) sender {// copy cell

NSLog (@ "handle copy cell ");

}

-(Void) handleDeleteCell :( id) sender {// Delete cell

NSLog (@ "handle delete cell ");

}

3. Rewrite the canBecomeFirstResponder method in the Custom cell and return yes.

// In order to display the menu, the target view must be in the responder chain. Many UIKit views cannot be a responder by default. Therefore, you need to make these views reload the canBecomeFirstResponder method and return YES

-(BOOL) canBecomeFirstResponder {

Return
YES;

}

After these steps, you will be able to see this foreign language on the Internet and share it with us:

Http://www.intridea.com/blog/2010/12/22/developers-notes-for-uimenucontroller