iOS笔记之_UILabel长按复制

UILabel长按复制

mLabel.m

- (instancetype)initWithFrame:(CGRect)frame
{
    self = [super initWithFrame:frame];
    if (self) {
        self.userInteractionEnabled = YES;
        UILongPressGestureRecognizer *longPressGesture = [[UILongPressGestureRecognizer alloc] initWithTarget:self action:@selector(longPressCellHandle:)];
                [self addGestureRecognizer:longPressGesture];
    }
    return self;
}


-(void)longPressCellHandle:(UILongPressGestureRecognizer *)gesture
{
    [self becomeFirstResponder];
    
    UIMenuController *menuController = [UIMenuController sharedMenuController];
    
    UIMenuItem *copyItem = [[UIMenuItem alloc] initWithTitle:@"复制" action:@selector(menuCopyBtnPressed:)];
    
    menuController.menuItems = @[copyItem];
    
    [menuController setTargetRect:gesture.view.frame inView:gesture.view.superview];
    
    [menuController setMenuVisible:YES animated:YES];
    
    [UIMenuController sharedMenuController].menuItems=nil;
    
}


-(void)menuCopyBtnPressed:(UIMenuItem *)menuItem
{
    [UIPasteboard generalPasteboard].string = self.text;
    
}


-(BOOL)canBecomeFirstResponder

{
    return YES;
}


-(BOOL)canPerformAction:(SEL)action withSender:(id)sender

{
    if (action == @selector(menuCopyBtnPressed:)) {
    
            return YES;
    }
    return NO;
}

ViewController.m

#import "ViewController.h"
#import "mLabel.h"

- (void)viewDidLoad {
   [super viewDidLoad];
   MLabel *label = [[MLabel alloc] initWithFrame:CGRectMake(0, 100, self.view.bounds.size.width, 50)];
   label.textAlignment = NSTextAlignmentCenter;
   label.text = @"长按这里可以复制这里的文字";
   label.textColor = [UIColor grayColor];
   label.backgroundColor = [UIColor yellowColor];
   [self.view addSubview:label];
}

就酱...

Paste_Image.png