离子3聊天中无法发送和接收表情符号

Question

我很关心在离子3中显示表情符号。

我创建了我使用表情符号的聊天应用程序，但是当我发送表情符号时，它会向后者发送一条空信息。

那么，我该如何发送表情符号？ 或者，如何将表情符号转换为unicode纯文本？

谢谢大家，我等着您的反馈！

以下是一些代码：

Message.ts

import { Component, ElementRef } from '@angular/core';
import { EmojiPickerItem } from './../../model/emoji-picker/emoji-picker.interface';
.......

export class MessagePage {

selectedImojiPickerIten: EmojiPickerItem;
showEmojiPicker = false;
editorMsg = "";


constructor(navParams: NavParams,....){}

    switchEmojiPicker() {
        this.showEmojiPicker = !this.showEmojiPicker;
        if (!this.showEmojiPicker) {
            // this.messageInput.setFocus();
        }
        this.content.resize();
        this.scrollToBottom();
    }

    emoji(event) {
        this.selectedImojiPickerIten = event;
        this.editorMsg += this.selectedImojiPickerIten.emoji
      }

Message.html

<ion-footer [style.height]="showEmojiPicker ? '255px' : '55px'">
    <ion-grid class="input-wrap">
        <ion-row>
            <ion-col col-2>
                <button ion-button clear icon-only item-right (click)="switchEmojiPicker()">
                    <ion-icon name="md-happy"></ion-icon>
                </button>
            </ion-col>
            <ion-col col-8>
                <ion-textarea #chat_input [(ngModel)]="editorMsg" #chat_input placeholder="Message" (keyup.enter)="sendMsg()" (ionFocus)="onFocus()"
                    (ionChange)="isTyping()">
                </ion-textarea>
            </ion-col>
            <ion-col col-2>
                <button ion-button clear icon-only item-right class="'message-editor-button' + message.ownership" (click)="sendMsg()">
                    <ion-icon name="ios-send" ios="ios-send" md="md-send"></ion-icon>
                </button>
            </ion-col>
        </ion-row>
    </ion-grid>
    <emoji-picker (selectedImojiPickerIten)="emoji($event)" *ngIf="showEmojiPicker" [(ngModel)]="editorMsg"></emoji-picker>
</ion-footer>

Message page when sending an emoticon

Message page after sending and leaving the page, the message becomes blank

因此，一旦表情符号在消息中发送，消息就会留空而没有内容。我无法在聊天应用程序中发送和接收表情符号。