首先，因为苹果只放出来了 UITextView,UITextField,webView三个控件的剪贴板，所以一般控件的剪贴板都被禁用了，因此，我们首先要做的就是把这属性放出来，其实就是实现三个简单的方法，方法如下：
响应方法
- (BOOL)canBecomeFirstResponder{
returnYES;
}
//"反馈"关心的功能，即放出你需要的功能，比如你要放出copy，你就返回YES，否则返回NO；
-(BOOL)canPerformAction:(SEL)action withSender:(id)sender{
if (action ==@selector(copy:)){
returnYES;
}
else if (action ==@selector(paste:)){
return YES;
}
else if (action ==@selector(cut:)){
returnNO;
}
else if(action ==@selector(select:)){
returnNO;
}
else if (action ==@selector(delete:)){
returnNO;
}
return NO;
}
OK，开放控件的剪贴板功能已经放出，剩下的就是实现了
//UILabel默认是不接收事件的，我们需要自己添加touch事件
-(void)attachTapHandler{
self.userInteractionEnabled =YES; //用户交互的总开关
UITapGestureRecognizer *touch = [[UITapGestureRecognizeralloc] initWithTarget:selfaction:@selector(handleTap:)];
touch.numberOfTapsRequired =1;
[selfaddGestureRecognizer:touch];
[touch release];
}
响应点击事件
-(void)handleTap:(UIGestureRecognizer*) recognizer{
[selfbecomeFirstResponder];
UIMenuController *menu = [UIMenuControllersharedMenuController];
[menu setTargetRect:self.frameinView:self.superview];
[menu setMenuVisible:YESanimated:YES];
}
OK，此处已经可以点击出COPY菜单了，下面就是对你copy和paste的实现了
//针对于copy的实现
-(void)copy:(id)sender{
UIPasteboard *pboard = [UIPasteboardgeneralPasteboard];
pboard.string = self.text;
}
- (void)paste:(id)sender{
self.textAlignment =UITextAlignmentRight;
UIPasteboard *pboard = [UIPasteboardgeneralPasteboard];
self.text = [NSStringstringWithFormat:@"粘贴内容：%@",pboard.string];
NSLog(@"pboard.string : %@",pboard.string);
}