managarten/maerchenzauber/apps/backend/docs/ExpoUI/ExpoUIAndroid.md

Jetpack Compose

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Jetpack Compose components for building native Android interfaces with @expo/ui.

Bundled version:
~0.2.0-beta.7

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This library is currently in alpha and will frequently experience breaking changes. It is not available in the Expo Go app — use development builds to try it out.
The Jetpack Compose components in @expo/ui/jetpack-compose allow you to build fully native Android interfaces using Jetpack Compose from React Native.

Installation
Terminal

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npx expo install @expo/ui
If you are installing this in an existing React Native app, make sure to install expo in your project.

Components
Button

Android

Code

import { Button } from '@expo/ui/jetpack-compose';

<Button
style={{ flex: 1 }}
variant="default"
onPress={() => {
setEditingProfile(true);
}}>
Edit profile
</Button>
See also: official Jetpack Compose documentation

CircularProgress

Android

Code

import { CircularProgress } from '@expo/ui/jetpack-compose';

<CircularProgress progress={0.5} style={{ width: 300 }} color="blue" elementColors={{ trackColor: '#cccccc' }} />
See also: official Jetpack Compose documentation

ContextMenu
Note: Also known as DropdownMenu.

Android

Code

import { ContextMenu } from '@expo/ui/jetpack-compose';

<ContextMenu style={{ width: 150, height: 50 }}>
<ContextMenu.Items>
<Button
elementColors={{ containerColor: '#0000ff', contentColor: '#00ff00' }}
onPress={() => console.log('Pressed1')}>
Hello
</Button>
<Button
variant="bordered"
color="#ff0000"
onPress={() => console.log('Pressed2')}>
Love it
</Button>
<Picker
label="Doggos"
options={['very', 'veery', 'veeery', 'much']}
variant="menu"
selectedIndex={selectedIndex}
onOptionSelected={({ nativeEvent: { index } }) => setSelectedIndex(index)}
/>
</ContextMenu.Items>
<ContextMenu.Trigger>
<Button variant="bordered" style={{ width: 150, height: 50 }}>
Show Menu
</Button>
</ContextMenu.Trigger>
</ContextMenu>

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See also: official Jetpack Compose documentation

Chip

Android

Code

import { Chip } from '@expo/ui/jetpack-compose';

// Assist chip with icon
<Chip
variant="assist"
label="Book"
leadingIcon="filled.Add"
onPress={() => console.log('Opening flight booking...')}
/>

// Filter chip with selection
<Chip
variant="filter"
label="Images"
leadingIcon="filled.Star"
selected={selectedFilters.includes('Images')}
onPress={() => handleFilterToggle('Images')}
/>

// Input chip with dismiss
<Chip
variant="input"
label="Work"
leadingIcon="filled.Create"
onDismiss={() => handleInputDismiss('Work')}
/>

// Suggestion chip
<Chip
variant="suggestion"
label="Nearby"
leadingIcon="filled.LocationOn"
onPress={() => console.log('Searching nearby...')}
/>

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See also: official Jetpack Compose documentation

DateTimePicker (date)

Android

Code

import { DateTimePicker } from '@expo/ui/jetpack-compose';

<DateTimePicker
onDateSelected={date => {
setSelectedDate(date);
}}
displayedComponents='date'
initialDate={selectedDate.toISOString()}
variant='picker'
/>
See also: official Jetpack Compose documentation

DateTimePicker (time)

Android

Code

import { DateTimePicker } from '@expo/ui/jetpack-compose';

<DateTimePicker
onDateSelected={date => {
setSelectedDate(date);
}}
displayedComponents='hourAndMinute'
initialDate={selectedDate.toISOString()}
variant='picker'
/>
See also: official Jetpack Compose documentation

LinearProgress

Android

Code

import { LinearProgress } from '@expo/ui/jetpack-compose';

<LinearProgress progress={0.5} style={{ width: 300 }} color="red" />
See also: official Jetpack Compose documentation

Picker (radio)

Android

Code

import { Picker } from '@expo/ui/jetpack-compose';

<Picker
options={['$', '$$', '$$$', '$$$$']}
selectedIndex={selectedIndex}
onOptionSelected={({ nativeEvent: { index } }) => {
setSelectedIndex(index);
}}
variant="radio"
/>
See also: official Jetpack Compose documentation

Picker (segmented)

Android

Code

import { Picker } from '@expo/ui/jetpack-compose';

<Picker
options={['$', '$$', '$$$', '$$$$']}
selectedIndex={selectedIndex}
onOptionSelected={({ nativeEvent: { index } }) => {
setSelectedIndex(index);
}}
variant="segmented"
/>
See also: official Jetpack Compose documentation

Slider

Android

Code

import { Slider } from '@expo/ui/jetpack-compose';

<Slider
style={{ minHeight: 60 }}
value={value}
onValueChange={(value) => {
setValue(value);
}}
/>
See also: official Jetpack Compose documentation

Switch (toggle)
Note: also known as Toggle.

Android

Code

import { Switch } from '@expo/ui/jetpack-compose';

<Switch
value={checked}
onValueChange={checked => {
setChecked(checked);
}}
color="#ff0000"
label="Play music"
variant="switch"
/>
See also: official Jetpack Compose documentation

Switch (checkbox)

Android

Code

import { Switch } from '@expo/ui/jetpack-compose';

<Switch
value={checked}
onValueChange={checked => {
setChecked(checked);
}}
label="Play music"
color="#ff0000"
variant="checkbox"
/>
See also: official Jetpack Compose documentation

TextInput

Android

Code

import { TextInput } from '@expo/ui/jetpack-compose';

<TextInput autocorrection={false} defaultValue="A single line text input" onChangeText={setValue} />
See also: official Jetpack Compose documentation

API
Full documentation is not yet available. Use TypeScript types to explore the API.

// Import from the Jetpack Compose package
import { Button } from '@expo/ui/jetpack-compose';