Ionic 2:How 为 select 或 ion-select [selectOptions] 使用多语言?

Ionic 2:How to use multi-lang for selector ion-select [selectOptions]?

 <ion-item>
    <ion-label >{{ 'branch' | translate }}</ion-label>
    <ion-select [(ngModel)]="defualtBranch"  
    okText="{{ 'okText' | translate }}"
    cancelText="{{ 'cancelText' | translate }}" 
    [selectOptions]="{{ 'selectOptionsBranch' | translate }}"  >
      <ion-option *ngFor="let branch of branchs; let i=index" value="{{branch.BranchCode}}">
        {{branch.BranchName}}
      </ion-option>
    </ion-select>
  </ion-item>

如何使用selectOptions多语言?

这条线不要工作[selectOptions]="{{ 'selectOptionsBranch' | translate }}"

在 html 中将 [selectOptions]="{{ 'selectOptionsBranch' | translate }}" 更改为 [selectOptions]="selectOptionsBranch":

在 Typescript 中使用此代码:

import { TranslateService } from 'ng2-translate';
export class IntroPage {
  selectOptionsBranch:any;
  constructor(public navCtrl: NavController,translate: TranslateService) {
    translate.use("fa");
    translate.get('selectOptionsBranch').subscribe(
      value => {
        console.log(value);
        this.selectOptionsBranch = value;
      }
    )
  }
}