ion-app
App is a container element for an Ionic application. There should only be one <ion-app> element per project. An app can have many Ionic components including menus, headers, content, and footers. The overlay components get appended to the <ion-app> when they are presented.
Using ion-app enables the following behaviors:
- Keyboard Lifecycle Events without the need for any native plugins
- Hardware Back Button Listeners for customizing the hardware back button behavior on Android devices
- Status bar support in Capacitor or Cordova which allows users to scroll to the top of the view by tapping the status bar
- Scroll assist utilities which scroll the content so focused text inputs are not covered by the on-screen keyboard
- Ripple effect when activating buttons on Material Design mode
- Other tap and focus utilities which make the experience of using an Ionic app feel more native
Properties
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Events
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Methods
setFocus
| Description | Used to set focus on an element that uses ion-focusable. Do not use this if focusing the element as a result of a keyboard event as the focus utility should handle this for us. This method should be used when we want to programmatically focus an element as a result of another user action. (Ex: We focus the first element inside of a popover when the user presents it, but the popover is not always presented as a result of keyboard action.) |
| Signature | setFocus(elements: HTMLElement[]) => Promise<void> |
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