2019独角兽企业重金招聘Python工程师标准>>>

1. @implementation UICopyLabel
2. // default is NO
3. - (BOOL)canBecomeFirstResponder{
4. return YES;
5. }
6. //"反馈"关心的功能
7. -(BOOL)canPerformAction:(SEL)action withSender:(id)sender{
8. return (action == @selector(copy:));
9. }
10. //针对于copy的实现
11. -(void)copy:(id)sender{
12. UIPasteboard *pboard = [UIPasteboard generalPasteboard];
13. pboard.string = self.text;
14. }
15. //UILabel默认是不接收事件的，我们需要自己添加touch事件
16. -(void)attachTapHandler{
17. self.userInteractionEnabled = YES;  //用户交互的总开关
18. UITapGestureRecognizer *touch = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(handleTap:)];
19. touch.numberOfTapsRequired = 2;
20. [self addGestureRecognizer:touch];
21. [touch release];
22. }
23. //绑定事件
24. - (id)initWithFrame:(CGRect)frame
25. {
26. self = [super initWithFrame:frame];
27. if (self) {
28. [self attachTapHandler];
29. }
30. return self;
31. }
32. //同上
33. -(void)awakeFromNib{
34. [super awakeFromNib];
35. [self attachTapHandler];
36. }
37. -(void)handleTap:(UIGestureRecognizer*) recognizer{
38. [self becomeFirstResponder];
39. UIMenuController *menu = [UIMenuController sharedMenuController];
40. [menu setTargetRect:self.frame inView:self.superview];
41. [menu setMenuVisible:YES animated:YES];
42. }
43. @end

1. -(void)attachTapHandler{
2. self.userInteractionEnabled = YES;  //用户交互的总开关
3. //双击
4. UITapGestureRecognizer *touch = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(handleTap:)];
5. touch.numberOfTapsRequired = 2;
6. [self addGestureRecognizer:touch];
7. [touch release];
8. //长按压
9. UILongPressGestureRecognizer *press = [[UILongPressGestureRecognizer alloc]initWithTarget:self action:@selector(longPress:)];
10. press.minimumPressDuration = 1.0;
11. [self addGestureRecognizer:press];
12. [press release];
13. }

1. - (void)longPress:(UILongPressGestureRecognizer *)recognizer {
2. if (recognizer.state == UIGestureRecognizerStateBegan) {
3. //   TSTableViewCell *cell = (TSTableViewCell *)recognizer.view;
4. [self becomeFirstResponder];
5. UIMenuItem *flag = [[UIMenuItem alloc] initWithTitle:@"Flag" action:@selector(flag:)];
6. UIMenuItem *approve = [[UIMenuItem alloc] initWithTitle:@"Approve" action:@selector(approve:)];
7. UIMenuItem *deny = [[UIMenuItem alloc] initWithTitle:@"Deny" action:@selector(deny:)];
8. UIMenuController *menu = [UIMenuController sharedMenuController];
9. [menu setMenuItems:[NSArray arrayWithObjects:flag, approve, deny, nil]];
10. [menu setTargetRect:self.frame inView:self.superview];
11. [menu setMenuVisible:YES animated:YES];
12. NSLog(@"menuItems:%@",menu.menuItems);
13. }
14. }
15. - (void)flag:(id)sender {
16. NSLog(@"Cell was flagged");
17. }
18. - (void)approve:(id)sender {
19. NSLog(@"Cell was approved");
20. }
21. - (void)deny:(id)sender {
22. NSLog(@"Cell was denied");
23. }

1. -(BOOL)canPerformAction:(SEL)action withSender:(id)sender{
2. //    return (action == @selector(copy:));
3. if (action == @selector(copy:)||action == @selector(flag:)||action == @selector(approve:)||action == @selector(deny:)) {
4. return YES;
5. }
6. }