Ionic 2:在标签按钮中使用图片

2022-01-13 00:00:00 tabs javascript angular ionic2

我在我的应用程序中使用离子标签，我想在标签按钮中使用图片.我想动态设置这张图片.

I use ion-tabs in my App and I want to use an picture in a tab-button. I want to set this picture dynamicly.

就我而言，我有一个与不同用户关联的帐户.我想根据所选用户更改我的标签图片.

In my case, I have an account with different users linked to it. I want to change my tab picture depending of the selected user.

我有这个:

我想要这个:

我的标签中的代码:

    <ion-tabs tabsHighlight="false">
      <ion-tab [root]="HomePage" 
               tabsHideOnSubPages="true"
               tabIcon="checkbox"
               tabTitle="A faire"
               tabBadge="5"
               tabBadgeStyle="notif">
      </ion-tab>
      <ion-tab [root]="ToComePage"
               tabsHideOnSubPages="true"
               tabIcon="time" tabTitle="A venir"
               tabBadge="0"
               tabBadgeStyle="notif">
      </ion-tab>
      <ion-tab [root]="HistoricPage"
               tabsHideOnSubPages="true"
               tabIcon="book"
               tabTitle="Historique">
      </ion-tab>
      <ion-tab [root]="MenuPage"
               tabsHideOnSubPages="true"
//I want to delete this tab Icon and replace it by a picture.
               tabIcon="menu"
               tabTitle="Menu">
      </ion-tab>
    </ion-tabs>

我不知道该怎么做，一个想法?

I don't know how to do that, an idea ?

推荐答案

终于找到解决方案了！我只是写在创建的 DOM 中.

Finally I find a solution ! I just write in the created DOM.

我喜欢这样:

updateAccountTab() : void {
      let array = document.getElementsByClassName('tabbar');
      let tabbar = array[0];
      let element = tabbar.childNodes[tabbar.childElementCount-1];
      if(element) {
          element.removeChild(element.childNodes[1]);
          let img = document.createElement("img");
          img.setAttribute("class", "tab-icon-custom tab-button-icon icon icon-md");
          img.setAttribute("src", this.pdata.user.profile_thumbnail);
          element.insertBefore(img, element.childNodes[1]);
      }
  }

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