tederen_ios/smartRhino/Project/Tools/UILabelCopy.m

//
//  UILabelCopy.m
//  smartRhino
//
//  Created by niuzhen on 2020/2/7.
//  Copyright © 2020 tederen. All rights reserved.
//

#import "UILabelCopy.h"

@interface UILabelCopy()
@property (nonatomic, strong) UIPasteboard *pasteboard;
@end
@implementation UILabelCopy
- (void)awakeFromNib
{
    [super awakeFromNib];
    self.numberOfLines = 0;
    self.pasteboard = [UIPasteboard generalPasteboard];
    [self attachLongTapHandle];
}
- (instancetype)init {
    if (self = [super init]) {
        self.numberOfLines = 0;
        self.pasteboard = [UIPasteboard generalPasteboard];
        [self attachLongTapHandle];
    }
    return self;
}

- (void)attachLongTapHandle {
    self.userInteractionEnabled = YES;

    UILongPressGestureRecognizer * longPress = [[UILongPressGestureRecognizer alloc] initWithActionBlock:^(id  _Nonnull sender) {
        UILongPressGestureRecognizer *press = (UILongPressGestureRecognizer *)sender;
        if (press.state == UIGestureRecognizerStateBegan) {
            // UILabel成为第一响应者
            [self becomeFirstResponder];
            UIMenuItem *copyMenuItem = [[UIMenuItem alloc]initWithTitle:@"复制" action:@selector(copyAction:)];
            UIMenuItem *pasteMenueItem = [[UIMenuItem alloc]initWithTitle:@"全选" action:@selector(selectAll:)];
            UIMenuItem *cutMenuItem = [[UIMenuItem alloc]initWithTitle:@"摘录" action:@selector(returnAction:)];
        
            UIMenuController *menuVC = [UIMenuController sharedMenuController];
            [menuVC setMenuItems:[NSArray arrayWithObjects:copyMenuItem, pasteMenueItem,cutMenuItem, nil]];
            [menuVC setTargetRect:self.frame inView:self.superview];
            [menuVC setMenuVisible:YES animated:YES];
        }
    }];
    [self addGestureRecognizer:longPress];
}

- (BOOL)canBecomeFirstResponder {
    return YES;
}

- (BOOL)canPerformAction:(SEL)action withSender:(id)sender {
    if (action == @selector(copyAction:)) {
        return YES;
    }
    if (action == @selector(selectAll:)) {
        return YES;
    }
    if (action == @selector(returnAction:)) {
        return YES;
    }
    return NO;
}

- (void)copyAction:(id)sender {
     NSLog(@"copy");
     self.pasteboard.string = self.text;
}
- (void)selectAll:(id)sender {
    NSLog(@"selectAll");
}

- (void)returnAction:(id)sender {
    NSLog(@"cut");
}

@end