Header

A screen's header: the bar under the status bar, and a large title that folds into it as the content scrolls.

MobileBetaNavigation

Mobile only — React Native, from @krizaka/ui/native. Beta: its API may still change in a minor version.

Why it is here. the native apps: Yasakia (PY4), Yororis (PYO2), Orochia mobile (PS6), Orazaka mobile: the header of every screen.

When to use

The top of a section of the app: Earnings, Messages, Jobs.
A detail screen with a back button (size="inline").

When not to use

For the app's sections.Use instead: Tab bar
For a page header on the web.Use instead: Page header

Installation

Install

npx expo install react-native-svg
npm install @krizaka/ui

Import

import { Header, useCollapsingHeader } from "@krizaka/ui/native";

Wrap the app once in ThemeProvider from @krizaka/ui/native: every component reads its colour roles.

Examples

React Native has no live preview on the web: each example shows the screenshot of its story, tested in both themes, and the code to copy.

Large title

Folds into the bar as the list scrolls; a search field under it.

Props

A screen's header: the bar (back, title, actions) under the status bar's safe area, and a large title that folds into the bar as the content scrolls — the iOS idiom, readable on Android. Feed it the list's scroll with useCollapsingHeader(). The title is the screen's heading for screen readers either way.

Prop	Type	Default	Description
`title`required	`string`	—	The screen's title — a heading, shown large under the bar until the content scrolls under it.
`actions`	`ReactNode`	—	Buttons at the right of the bar (`IconButton`s).
`backLabel`	`string`	—	The back button's words (“Back”) — passed translated; with `onBack` it shows.
`children`	`ReactNode`	—	Under the title: a `SearchField`, `Tabs`.
`onBack`	`(() => void)`	—	Called by the back button.
`scrollY`	`Value`	—	The scroll position of the screen's list (`useCollapsingHeader().scrollY`): the large title folds into the bar. Absent: always large.
`size`	`"inline" \| "large"`	`large`	`large` (default: the top of a section) or `inline` (a detail screen: the title in the bar only).
`style`	`StyleProp<ViewStyle>`	—	Styles merged last.
`subtitle`	`string`	—	A line under the large title (a count, a date).

Accessibility

The title is the screen's heading for screen readers, folded or not.
The back button is named by backLabel.

Best practices

Feed it the list's scroll with useCollapsingHeader().
Put a search field or tabs under the title as children.
Two actions at most in the bar.

Generated from the code of @krizaka/ui 3.8.0: its meta.ts, its examples and its types.Edit this documentation on GitHub