对常用控件添加长按复制及自定义弹出menu

#import "FeedbackLabel.h"

@implementation FeedbackLabel

/*
// Only override drawRect: if you perform custom drawing.
// An empty implementation adversely affects performance during animation.
- (void)drawRect:(CGRect)rect {
    // Drawing code
}
*/

- (BOOL)canBecomeFirstResponder{
return YES;
}

//"反馈"关心的功能
-(BOOL)canPerformAction:(SEL)action withSender:(id)sender{
    //    return (action == @selector(copy:));
    if (action == @selector(copy:)||action == @selector(flag:)||action == @selector(approve:)||action == @selector(deny:))
    {
        return YES;
    }
        return NO;
}
//针对于copy的实现
-(void)copy:(id)sender{
    UIPasteboard *pboard = [UIPasteboard generalPasteboard];
    pboard.string = self.text;
}

//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 = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(handTapLabel:)];
    touch.numberOfTapsRequired = 2;
    [self addGestureRecognizer:touch];
    //长按压
    UILongPressGestureRecognizer *press = [[UILongPressGestureRecognizer alloc]initWithTarget:self action:@selector(longPress:)];
    press.minimumPressDuration = 1.0;
    [self addGestureRecognizer:press];
    
}
//绑定事件
- (id)initWithFrame:(CGRect)frame
{
    self = [super initWithFrame:frame];
    if (self) {
        [self attachTapHandler];
    }
    return self;
}

-(void)handTapLabel:(UIGestureRecognizer*) recognizer{
    [self becomeFirstResponder];
    UIMenuController *menu = [UIMenuController sharedMenuController];
    [menu setTargetRect:self.frame inView:self.superview];
    [menu setMenuVisible:YES animated:YES];
}

- (void)longPress:(UILongPressGestureRecognizer *)recognizer {
    if (recognizer.state == UIGestureRecognizerStateBegan) {
        //   TSTableViewCell *cell = (TSTableViewCell *)recognizer.view;
        [self becomeFirstResponder];
        UIMenuItem *flag = [[UIMenuItem alloc] initWithTitle:@"Flag" action:@selector(flag:)];
        UIMenuItem *approve = [[UIMenuItem alloc] initWithTitle:@"Approve" action:@selector(approve:)];
        UIMenuItem *deny = [[UIMenuItem alloc] initWithTitle:@"Deny" action:@selector(deny:)];
        
        UIMenuController *menu = [UIMenuController sharedMenuController];
        [menu setMenuItems:[NSArray arrayWithObjects:flag, approve, deny, nil]];
        [menu setTargetRect:self.frame inView:self.superview];
        [menu setMenuVisible:YES animated:YES];
    }  
}

- (void)flag:(id)sender {
    NSLog(@"Cell was flagged");
}

- (void)approve:(id)sender {
    NSLog(@"Cell was approved");
}

- (void)deny:(id)sender {
    NSLog(@"Cell was denied");
}