在 Ionic FAB 列表中插入标签的正确方法是什么

whats the correct way of inserting label in an Ionic FAB list

我想插入一个标签,以便匹配 Fab 列表中的每个 FAB 图标,正确的做法是什么。我这样做的方式不起作用

<ion-fab left middle>
  <button ion-fab color="dark">
    <ion-icon name="arrow-dropup"></ion-icon>
    <ion-label>here</ion-label>
  </button>
  <ion-fab-list side="top">
    <button ion-fab>
      <ion-icon name="logo-facebook"></ion-icon>
      <ion-label>here</ion-label>
    </button>
    <button ion-fab>
      <ion-icon name="logo-twitter"></ion-icon>
    </button>
    <button ion-fab>
      <ion-icon name="logo-vimeo"></ion-icon>
    </button>
    <button ion-fab>
      <ion-icon name="logo-googleplus"></ion-icon>
    </button>
  </ion-fab-list>
</ion-fab>

对于它的价值,我能够使用以下 SCSS 完成您的要求。

如果 Ionic 直接支持它就好了,但我找不到任何表明这是内置的东西。

    button[ion-fab] {
        overflow: visible;
        position: relative;

        ion-label {
            position: absolute;
            top: -8px;
            right: 40px;

            color: white;
            background-color: rgba(0,0,0,0.7);
            line-height: 24px;
            padding: 4px 8px;
            border-radius: 4px;
        }
        contain: layout;
    }

ross 解决方案很棒,但为了让它在 Ionic v2 上运行,我不得不将 Ionic 附带的 .fab class 从 contain: strict 更改为 contain: layout.

原来 class 是这样的:

.fab {
    -moz-appearance: none;
    -ms-appearance: none;
    -webkit-appearance: none;
    appearance: none;
    position: relative;
    z-index: 0;
    display: block;
    overflow: hidden;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    font-size: 14px;
    line-height: 56px;
    text-align: center;
    text-overflow: ellipsis;
    text-transform: none;
    white-space: nowrap;
    cursor: pointer;
    transition: background-color, opacity 100ms linear;
    background-clip: padding-box;
    -webkit-font-kerning: none;
    font-kerning: none;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
    contain: strict;
}

因此,在您的页面 .scss 文件中添加以下内容:

.fab {
    contain: layout;
}

它将覆盖页面的默认 .fab class 并且它会起作用。

选择的答案似乎大部分时间都有效,但在某些 iOS 设备中,它没有采用 contain: layout; 设置,导致标签不对齐。我不需要我的标签作为可点击按钮的一部分,所以我的 FAB 标签添加在下方,适用于 iOS。相当简单。

HTML

<ion-fab top right edge>
    <button ion-fab color="primary">
        <ion-icon name="add"></ion-icon>
    </button>
    <ion-label>Scan</ion-label>
</ion-fab>

CSS

ion-fab ion-label {
    font-weight: bold;
    color: color($colors, primary, base);
    text-align: center;
    margin: 0px !important;
}

如果您使用的是 ionic 4,这适合您

ion-fab-button[data-desc] {
  position: relative;
}

ion-fab-button[data-desc]::after {
  position: absolute;
  content: attr(data-desc);
  z-index: 1;
  right: 55px;
  bottom: 4px;
  background-color: var(--ion-color-dark);
  padding: 9px;
  border-radius: 15px;
  color: white;
  box-shadow: 0 3px 5px -1px rgba(0,0,0,0.2), 0 6px 10px 0 rgba(0,0,0,0.14), 0 1px 18px 0 rgba(0,0,0,0.12);
}
<ion-fab horizontal="end" vertical="bottom" slot="fixed">
    <ion-fab-button color="primary" class="">
      <ion-icon name="add"></ion-icon>
    </ion-fab-button>
    <ion-fab-list side="top">
      <ion-fab-button color="primary" routerLink="/contacts/create" routerDirection="forward" data-desc="Create Contact">
        <ion-icon name="person-add"></ion-icon>
      </ion-fab-button>
      <ion-fab-button color="primary" >
        <ion-icon name="stats"></ion-icon>
      </ion-fab-button>
      <ion-fab-button color="primary" routerLink="/reminder/create" routerDirection="forward" data-desc="Create Reminder">
        <ion-icon name="alarm"></ion-icon>
      </ion-fab-button>
    </ion-fab-list>
  </ion-fab>

<ion-fab horizontal="end" vertical="bottom" size='small'>
  <ion-fab-button>
    <ion-icon name="md-arrow-dropup"></ion-icon>
  </ion-fab-button>
  <ion-fab-list side="top">
    <ion-item
      style="position: absolute; margin: auto; border: 1px solid; right: 20px; border-radius: 30px; he`ight: 38px;">
      <ion-icon style=" margin-top: 0px;" slot="end" src='assets/icon/lock.svg'></ion-icon>
      <ion-label style=" margin-top: 0px;">Log out</ion-label>
    </ion-item>
  </ion-fab-list>
</ion-fab>

带有标签和图标的 ion-fab(预览):

I Ionic 4/5 已接受的答案(图标旁边的标签)不再有效。您必须使用 itemdata- 等全局属性来使用 ::after 伪 css 样式。请参阅以下示例:

HTML:

<ion-fab vertical="bottom" horizontal="end">
    <ion-fab-button>
      <ion-icon name="add"></ion-icon>
    </ion-fab-button>
    <ion-fab-list side="top">
      <ion-fab-button (click)="do1()" data-desc="Description 1">
        <ion-icon name="contact"></ion-icon>
      </ion-fab-button>
      <ion-fab-button (click)="do2()" data-desc="Description 2">
        <ion-icon name="person-add"></ion-icon>
      </ion-fab-button>
    </ion-fab-list>
  </ion-fab>

SCSS:

ion-fab-button[data-desc] {
  position: relative;
}

ion-fab-button[data-desc]::after {
  position: absolute;
  content: attr(data-desc);
  z-index: 1;
  right: 55px;
  bottom: 4px;
  background-color: var(--ion-color-primary);
  padding: 9px;
  border-radius: 15px;
  color: white;
  box-shadow: 0 3px 5px -1px rgba(0,0,0,0.2), 0 6px 10px 0 rgba(0,0,0,0.14), 0 1px 18px 0 rgba(0,0,0,0.12);
}

来源:https://forum.ionicframework.com/t/fab-labels-in-ionic-4/139823/6

是的,你可以这样实现。

  1. component.html 文件中。

<ion-fab vertical="bottom" horizontal="end">
      <ion-fab-button color="success">
        <ion-icon name="alert-circle-outline"></ion-icon>
      </ion-fab-button>
      <ion-fab-list side="top">
        <ion-fab-button (click)="callFunction()" data-desc="Sales" color="success">
          <ion-icon name="cart-outline"></ion-icon>
        </ion-fab-button>
        <ion-fab-button (click)="callFunction()" data-desc="Payment" color="success">
          <ion-icon name="cash-outline"></ion-icon>
        </ion-fab-button>
        <ion-fab-button (click)="callFunction()" data-desc="Edit" color="danger">
          <ion-icon name="create-outline"></ion-icon>
        </ion-fab-button>
      </ion-fab-list>
    </ion-fab>

  1. component.css 文件中..
ion-fab-button[data-desc] {
    position: relative;
}

ion-fab-button[data-desc]::after {
    position: absolute;
    content: attr(data-desc);
    z-index: 1;
    right: 50px;
    bottom: 7px;
    color: var(--ion-color-contrast, #fff);
    background-color: var(--ion-color-base, #fff);
    padding: 5px 10px;
    border-radius: 10px;
    box-shadow: 0 3px 5px -1px rgba(0, 0, 0, 0.2), 0 6px 10px 0 rgba(0, 0, 0, 0.14), 0 1px 18px 0 rgba(0, 0, 0, 0.12);
}

我用这种方式处理翻译和 bootstrap

    <ion-fab horizontal="start" vertical="bottom" slot="fixed">
    <ion-fab-button color="secondary" class="">
        <ion-icon name="add"></ion-icon>
    </ion-fab-button>
    <ion-fab-list side="top">
        <ion-button color="success" (click)="callFunction()" style="text-transform:none">
            <ion-label class="fw-bold">{{'fab-nonstop' | translate }} </ion-label>
            <ion-icon name="airplane" class="ms-1"></ion-icon>
        </ion-button>
        <ion-button color="warning" (click)="callFunction()" style="text-transform:none">
            <ion-label class="fw-bold">{{'fab-stop' | translate }} </ion-label>
            <ion-icon name="car" class="ms-1"></ion-icon>
        </ion-button>
    </ion-fab-list>
</ion-fab>

这是结果:

更新 Ionic 版本 6+,带有阴影 DOM 和 ::part 选择器:

ion-fab-list ion-fab-button {
    overflow: visible;
    position: relative;
    contain: layout;
}
ion-fab-list ion-fab-button ion-label {
    position: absolute;
    right: 50px;
    color: var(--color);
    background: var(--background);
    line-height: 1rem;
    padding: 4px 8px;
    border-radius: 8px;
    box-shadow: var(--box-shadow);
    height: 40px;
    width: max-content;
    display: flex;
    align-items: center;
}
ion-fab-list ion-fab-button::part(native) {
    contain: initial;
    overflow: visible;
}