我正在使用以下方法在 UITableViewCell 中长按显示菜单。
我需要将按下 Delete 菜单项的值传递给 -(void)numberDelete 方法。
-(void)handleLongPress:(UILongPressGestureRecognizer *)gestureRecognizer {
if(gestureRecognizer.state == UIGestureRecognizerStateBegan) {
CGPoint p = [gestureRecognizer locationInView: self.pullTableView];
NSIndexPath *indexPath = [self.pullTableView indexPathForRowAtPoint:p];
if(indexPath != nil) {
[self becomeFirstResponder];
NSInteger *row = indexPath.row;
//need to pass this row value through @selector(numberDelete:)
UIMenuItem *delete = [[UIMenuItem alloc] initWithTitle:@"Delete" action:@selector(numberDelete:)];
UIMenuController *menu = [UIMenuController sharedMenuController];
[menu setMenuItems:[NSArray arrayWithObjects:delete, nil]];
[menu setTargetRect:[self.pullTableView rectForRowAtIndexPath:indexPath] inView:self.pullTableView];
[menu setMenuVisible:YES animated:YES];
}
}
}
-(void)numberDelete:(id)sender {
//receive value of row here
}
-(BOOL)canBecomeFirstResponder {
return YES;
}
-(BOOL)canPerformAction:(SEL)action withSender:(id)sender {
if (action == @selector(customDelete:) ){
return YES;
}
return NO;
}
最佳答案
非常简单,只需创建一个 UIMenuItem
类型的类,在其中添加属性,然后使用您的 UIMenuItem 类
而不是实际的 UIMenuItem
。看看如何。
创建一个 type UIMenuItem
的类 say MyMenuItem
。
MyMenuItem.h
#import <UIKit/UIKit.h>
@interface MyMenuItem : UIMenuItem
@property(nonatomic, strong)NSIndexPath *indexPath;
@end
MyMenuItem.m
#import "MyMenuItem.h"
@implementation MyMenuItem
@end
然后
{
MyMenuItem *deleteMenuItem = [[MyMenuItem alloc] initWithTitle:@"Delete" action:@selector(numberDelete:)];
deleteMenuItem.indexPath=indexPath;//Assign to property
UIMenuController *menu = [UIMenuController sharedMenuController];
[menu setMenuItems:[NSArray arrayWithObjects:deleteMenuItem, nil]];
[menu setTargetRect:[self.pullTableView rectForRowAtIndexPath:indexPath] inView:self.pullTableView];
[menu setMenuVisible:YES animated:YES];
}
-(void)numberDelete:(id)sender {
//receive value of row here. The sender in iOS 7 is an instance of UIMenuController.
UIMenuController *targetSender = (UIMenuController *)sender ;
MyMenuItem *menuItem=(MyMenuItem *)[targetSender.menuItems firstObject];
NSLog(@"%d",menuItem.indexPath.row);
}
希望对你有帮助。
干杯。
关于ios - 通过 UIMenuController 的 UIMenuItem 传值,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/24729707/