shadowアイテムは、テキスト、アイコン、アバター、画像、入力、その他のネイティブまたはカスタム要素を含むことができる要素です。一般的には、他のアイテムと一緒にlistに配置されます。アイテムは、スワイプ、削除、並び替え、編集などが可能です。
アイテムはテキストを左寄せにし、テキストがアイテムより幅が広い場合は省略記号を追加しています。この動作は、Ionic Framework が提供する CSS Utilities を使って変更することができます。例えば、以下の例では .ion-text-wrap を使っています。テキストを変換するためにアイテムに追加できる他のクラスについては、CSS Utilities Documentation を参照してください。
href か button プロパティが設定されている場合、itemは "clickable（クリック可能）" と見なされます。clickableなitemsには、インタラクティブに操作できることを示す視覚的な違いがいくつかあります。たとえば、clickableなitemは、md modeではrippleエフェクトを持ち、ios modeではハイライト表示され、ios modeでの detail arrow が表示されます。
デフォルトでは、clickableなitems は、ios modeで右矢印アイコンを表示します。clickableな要素の右矢印アイコンを非表示にするには、 detail プロパティを false に設定します。自動的に表示されない項目に右矢印アイコンを表示するには、detailプロパティを true に設定します。
アイテムはデフォルトで下部のボーダーを挿入して表示します。ボーダーは左側にパディングを持ち、 "start" スロットにスロットされたコンテンツの下に表示されることはありません。 lines プロパティを "full" または "none" に変更すると、それぞれ全幅のボーダーが表示され、ボーダーを表示しないようになります。
Avatars and Thumbnails can be slotted inside of an item. This is useful when making lists of images and text.
Buttons are styled smaller inside of items than when they are outside of them. To make the button size match buttons outside of an item, set the size attribute to "default".
Helper & Error Text
Helper & error text can be used inside of an item with an input by slotting a note in the "helper" and "error" slots. The error slot will not be displayed unless the ion-invalid class is added to the ion-item. In Angular, this is done automatically through form validation. In JavaScript, React and Vue, the class needs to be manually added based on your own validation.
The item counter is helper text that displays under an input to notify the user of how many characters have been entered out of the total that the input will accept. When adding counter, the default behavior is to format the value that gets displayed as inputLength / maxLength. This behavior can be customized by passing in a formatter function to the counterFormatter property.
Items containing an input will highlight the bottom border of the input with a different color when focused, valid, or invalid. By default, md items have a highlight with a height set to 2px and ios has no highlight (technically the height is set to 0). The height can be changed using the --highlight-height CSS property. To turn off the highlight, set this variable to 0.
The highlight color changes based on the item state, but all of the states use Ionic colors by default. When focused, the input highlight will use the primary color. If the input is valid it will use the success color, and invalid inputs will use the danger color. This can be customized using the provided CSS properties.
| Description | If true, a button tag will be rendered and the item will be tappable. |
| Attribute | button |
| Type | boolean |
| Default | false |
| Description | The color to use from your application's color palette. Default options are: "primary", "secondary", "tertiary", "success", "warning", "danger", "light", "medium", and "dark". For more information on colors, see theming. |
| Attribute | color |
| Type | "danger" ｜ "dark" ｜ "light" ｜ "medium" ｜ "primary" ｜ "secondary" ｜ "success" ｜ "tertiary" ｜ "warning" ｜ string & Record<never, never> ｜ undefined |
| Default | undefined |
| Description | If true, a character counter will display the ratio of characters used and the total character limit. Only applies when the maxlength property is set on the inner ion-input or ion-textarea. |
| Attribute | counter |
| Type | boolean |
| Default | false |
| Description | A callback used to format the counter text. By default the counter text is set to "itemLength / maxLength". |
| Attribute | undefined |
| Type | ((inputLength: number, maxLength: number) => string) ｜ undefined |
| Default | undefined |
| Description | If true, a detail arrow will appear on the item. Defaults to false unless the mode is ios and an href or button property is present. |
| Attribute | detail |
| Type | boolean ｜ undefined |
| Default | undefined |
| Description | The icon to use when detail is set to true. |
| Attribute | detail-icon |
| Type | string |
| Default | chevronForward |
| Description | If true, the user cannot interact with the item. |
| Attribute | disabled |
| Type | boolean |
| Default | false |
| Description | This attribute instructs browsers to download a URL instead of navigating to it, so the user will be prompted to save it as a local file. If the attribute has a value, it is used as the pre-filled file name in the Save prompt (the user can still change the file name if they want). |
| Attribute | download |
| Type | string ｜ undefined |
| Default | undefined |
| Description | The fill for the item. If 'solid' the item will have a background. If 'outline' the item will be transparent with a border. Only available in md mode. |
| Attribute | fill |
| Type | "outline" ｜ "solid" ｜ undefined |
| Default | undefined |
| Description | Contains a URL or a URL fragment that the hyperlink points to. If this property is set, an anchor tag will be rendered. |
| Attribute | href |
| Type | string ｜ undefined |
| Default | undefined |
| Description | How the bottom border should be displayed on the item. |
| Attribute | lines |
| Type | "full" ｜ "inset" ｜ "none" ｜ undefined |
| Default | undefined |
| Description | The mode determines which platform styles to use. |
| Attribute | mode |
| Type | "ios" ｜ "md" |
| Default | undefined |
| Description | Specifies the relationship of the target object to the link object. The value is a space-separated list of link types. |
| Attribute | rel |
| Type | string ｜ undefined |
| Default | undefined |
| Description | When using a router, it specifies the transition animation when navigating to another page using href. |
| Attribute | undefined |
| Type | ((baseEl: any, opts?: any) => Animation) ｜ undefined |
| Default | undefined |
| Description | When using a router, it specifies the transition direction when navigating to another page using href. |
| Attribute | router-direction |
| Type | "back" ｜ "forward" ｜ "root" |
| Default | 'forward' |
| Description | The shape of the item. If "round" it will have increased border radius. |
| Attribute | shape |
| Type | "round" ｜ undefined |
| Default | undefined |
| Description | Specifies where to display the linked URL. Only applies when an href is provided. Special keywords: "_blank", "_self", "_parent", "_top". |
| Attribute | target |
| Type | string ｜ undefined |
| Default | undefined |
| Description | The type of the button. Only used when an onclick or button property is present. |
| Attribute | type |
| Type | "button" ｜ "reset" ｜ "submit" |
| Default | 'button' |
No events available for this component.
No public methods available for this component.
| Name | Description |
|---|
detail-icon | The chevron icon for the item. Only applies when detail="true". |
native | The native HTML button, anchor or div element that wraps all child elements. |
| Name | Description |
|---|
--background | Background of the item |
--background-activated | Background of the item when pressed. Note: setting this will interfere with the Material Design ripple. |
--background-activated-opacity | Opacity of the item background when pressed |
--background-focused | Background of the item when focused with the tab key |
--background-focused-opacity | Opacity of the item background when focused with the tab key |
--background-hover | Background of the item on hover |
--background-hover-opacity | Opacity of the background of the item on hover |
--border-color | Color of the item border |
--border-radius | Radius of the item border |
--border-style | Style of the item border |
--border-width | Width of the item border |
--color | Color of the item |
--color-activated | Color of the item when pressed |
--color-focused | Color of the item when focused with the tab key |
--color-hover | Color of the item on hover |
--detail-icon-color | Color of the item detail icon |
--detail-icon-font-size | Font size of the item detail icon |
--detail-icon-opacity | Opacity of the item detail icon |
--highlight-color-focused | The color of the highlight on the item when focused |
--highlight-color-invalid | The color of the highlight on the item when invalid |
--highlight-color-valid | The color of the highlight on the item when valid |
--highlight-height | The height of the highlight on the item |
--inner-border-width | Width of the item inner border |
--inner-box-shadow | Box shadow of the item inner |
--inner-padding-bottom | Bottom padding of the item inner |
--inner-padding-end | Right padding if direction is left-to-right, and left padding if direction is right-to-left of the item inner |
--inner-padding-start | Left padding if direction is left-to-right, and right padding if direction is right-to-left of the item inner |
--inner-padding-top | Top padding of the item inner |
--min-height | Minimum height of the item |
--padding-bottom | Bottom padding of the item |
--padding-end | Right padding if direction is left-to-right, and left padding if direction is right-to-left of the item |
--padding-start | Left padding if direction is left-to-right, and right padding if direction is right-to-left of the item |
--padding-top | Top padding of the item |
--ripple-color | Color of the item ripple effect |
--transition | Transition of the item |
| Name | Description |
|---|
| `` | Content is placed between the named slots if provided without a slot. |
end | Content is placed to the right of the item text in LTR, and to the left in RTL. |
error | Content is placed under the item and displayed when an error is detected. |
helper | Content is placed under the item and displayed when no error is detected. |
start | Content is placed to the left of the item text in LTR, and to the right in RTL. |