//
//  ZsyTextField.m
//  UIMenuController使用简介
//
//  Created by Zsy on 15/3/2.
//  Copyright © 2017年 Zsy. All rights reserved.
//#import "ZsyTextField.h"@implementation ZsyTextField- (void)awakeFromNib {[self setUp];
}- (instancetype)initWithFrame:(CGRect)frame {if (self = [super initWithFrame:frame]) {[self setUp];}return self;
}- (void)setUp {self.userInteractionEnabled = YES;[self addGestureRecognizer:[[UILongPressGestureRecognizer alloc]initWithTarget:self action:@selector(longPress)]];
}- (void)longPress {//1.设置label为第一响应者//通过设置第一响应者UIMenuController可以获得支持哪些操作的信息,操作怎么处理[self becomeFirstResponder];//2.设置UIMenuControllerUIMenuController * menu = [UIMenuController sharedMenuController];//当长按label的时候，这个方法会不断调用，menu就会出现一闪一闪不断显示，需要在此处进行判断if (menu.isMenuVisible) {return;}UIMenuItem *item1 = [[UIMenuItem alloc] initWithTitle:@"剪切" action:@selector(myCut:)];UIMenuItem *item2 = [[UIMenuItem alloc] initWithTitle:@"粘贴" action:@selector(myPasete:)];UIMenuItem *item3 = [[UIMenuItem alloc] initWithTitle:@"清空" action:@selector(myEmpty:)];menu.menuItems = @[item1, item2, item3];[menu setTargetRect:self.bounds inView:self];[menu setMenuVisible:YES animated:YES];
}- (BOOL)canBecomeFirstResponder {return YES;
}- (BOOL)canPerformAction:(SEL)action withSender:(id)sender {if (action == @selector(myCut:) || action == @selector(myPasete:) || action == @selector(myEmpty:)) {return YES;}return NO;
}- (void)myCut:(UIMenuController *)menu {[self copy:menu];self.text = nil;
}- (void)cut:(UIMenuController *)menu {[self copy:menu];self.text = nil;
}- (void)copy:(UIMenuController *)menu {if (!self.text) {return;}UIPasteboard *paste = [UIPasteboard generalPasteboard];paste.string = self.text;
}- (void)myPasete:(UIMenuController *)menu {UIPasteboard *paste = [UIPasteboard generalPasteboard];self.text = paste.string;
}- (void)myEmpty:(UIMenuController *)menu {self.text = nil;
}@end