代码如下(这里是延展的 .m 文件中实现部分)：
@implementation CustomEditLabel
/*
// Only override drawRect: if you perform custom drawing.
// An empty implementation adversely affects performance during animation.
- (void)drawRect:(CGRect)rect {
// Drawing code
}
*/
- (void)awakeFromNib{
[super awakeFromNib];
[self addLongPressEvent];
}
- (instancetype)initWithFrame:(CGRect)frame{
self = [super initWithFrame:frame];
if (self) {
[self addLongPressEvent];
}
return self;
}
- (void)addLongPressEvent{
self.userInteractionEnabled = YES;
UILongPressGestureRecognizer *longPress = [[UILongPressGestureRecognizer alloc] initWithTarget:self action:@selector(actionS:)];
[self addGestureRecognizer:longPress];
}
- (void)actionS:(UILongPressGestureRecognizer *)gesture{
if (gesture.state == UIGestureRecognizerStateBegan) {
[self becomeFirstResponder];
UIMenuItem *menuItem1 = [[UIMenuItem alloc] initWithTitle:@"拷贝哦" action:@selector(copyS:)];
UIMenuItem *menuItem2 = [[UIMenuItem alloc] initWithTitle:@"粘贴哦" action:@selector(pasteS:)];
UIMenuItem *menuItem3 = [[UIMenuItem alloc] initWithTitle:@"剪切哦" action:@selector(cutS:)];
UIMenuController *menuC = [UIMenuController sharedMenuController];
menuC.menuItems = @[menuItem1, menuItem2, menuItem3];
menuC.arrowDirection = UIMenuControllerArrowUp;
if (menuC.menuVisible) {
// NSLog(@"menuC.menuVisible 判断 -- %d", menuC.menuVisible);
return ;
}
[menuC setTargetRect:self.frame inView:self.superview];
[menuC setMenuVisible:YES animated:YES];
}
}
- (BOOL)canBecomeFirstResponder{
return YES;
}
- (BOOL)canPerformAction:(SEL)action withSender:(id)sender{
if ( action == @selector(copyS:) || (action == @selector(pasteS:) && [UIPasteboard generalPasteboard].string) || action == @selector(cutS:) ) {
// NSLog(@"粘贴板 -- %@", [UIPasteboard generalPasteboard].string);
return YES;
}else{
return NO;
}
}
//剪切事件（暂时不用）
- (void)cutS:(id)sender{
UIPasteboard *pboard = [UIPasteboard generalPasteboard];
pboard.string = self.text;
//剪切 功能
self.text = nil;
}
//拷贝
- (void)copyS:(id)sender{
UIPasteboard *pboard = [UIPasteboard generalPasteboard];
pboard.string = self.text;
}
//粘贴
- (void)pasteS:(id)sender{
UIPasteboard *pboard = [UIPasteboard generalPasteboard];
self.text = pboard.string;
}
@end
有不完整的地方请多多指教 。。。
