CameraHandle
What a Camera's ref holds: ref<CameraHandle>().
Utilisation
Pause and resume a camera preview.
// Pause and resume a camera preview.
import { Button, Camera, ref, type CameraHandle } from 'kuito';
function Scanner() {
// A plain ref holds the handle; cameraRef() adds ready and error signals.
const camera = ref<CameraHandle>();
return (
<>
<Camera ref={camera} flex={1} />
<Button onPress={() => void camera.current?.pausePreview()}>Pause</Button>
<Button onPress={() => void camera.current?.resumePreview()}>Resume</Button>
</>
);
}Déclaration du type
export type CameraHandle = NativeViewHandle<CameraMethods>;Membres 14
| Nom | Type | Requis | Description |
|---|---|---|---|
idlecture seule | string | Oui | — |
parentlecture seule | ElementHandle | Oui | — |
childrenlecture seule | ElementHandle[] | Oui | — |
focus | () => void | Oui | — |
blur | () => void | Oui | — |
setProperty | <K extends keyof ElementProperties>(key: K, value: ElementProperties[K] | null) => void | Oui | Sets a native prop on the view now, until its binding writes it again. |
addEventListener | (type: string, fn: (e: KuitoNativeEvent) => void, options?: boolean | { capture?: boolean; once?: boolean; signal?: AbortSignal;}) => void | Oui | — |
removeEventListener | (type: string, fn: (e: KuitoNativeEvent) => void, options?: boolean | { capture?: boolean;}) => void | Oui | — |
dispatchEvent | (event: { type: string; bubbles?: boolean; cancelable?: boolean;}) => boolean | Oui | Sends an event through the tree, capture to bubble, as a native one travels:
a KuitoCustomEvent, or any object with a type. False when a listener
called preventDefault() on a cancelable event. |
takePicture | (options?: PictureOptions) => Promise<CameraPicture> | Oui | Takes a picture with the current flash; the view must be ready. |
startRecording | (options?: RecordingOptions) => Promise<CameraRecording> | Oui | Starts recording, in video mode. Resolves with the video once the
recording ends: stopRecording, maxDuration, the app leaving the
foreground, or the view unmounting. |
stopRecording | () => Promise<CameraRecording> | Oui | Ends the recording, and resolves with the same video startRecording does. |
pausePreview | () => Promise<void> | Oui | Freezes the preview and stops the camera, keeping the view. |
resumePreview | () => Promise<void> | Oui | — |
focus — signatures de méthode
Signatures
(): voidParamètres
Aucun paramètre.
Retourne
void
blur — signatures de méthode
Signatures
(): voidParamètres
Aucun paramètre.
Retourne
void
setProperty — signatures de méthode
Signatures
<K extends keyof ElementProperties>(key: K, value: ElementProperties[K] | null): voidParamètres de type
| Nom | Contrainte | Par défaut |
|---|---|---|
K | keyof ElementProperties | — |
Paramètres
| Nom | Type | Requis | Description |
|---|---|---|---|
key | K | Oui | — |
value | ElementProperties[K] | Oui | — |
Retourne
void
addEventListener — signatures de méthode
Signatures
(type: string, fn: (e: KuitoNativeEvent) => void, options?: boolean | { capture?: boolean; once?: boolean; signal?: AbortSignal; }): voidParamètres
| Nom | Type | Requis | Description |
|---|---|---|---|
type | string | Oui | — |
fn | (e: KuitoNativeEvent) => void | Oui | — |
options | boolean | { capture?: boolean; once?: boolean; signal?: AbortSignal;} | Non | — |
Retourne
void
removeEventListener — signatures de méthode
Signatures
(type: string, fn: (e: KuitoNativeEvent) => void, options?: boolean | { capture?: boolean; }): voidParamètres
| Nom | Type | Requis | Description |
|---|---|---|---|
type | string | Oui | — |
fn | (e: KuitoNativeEvent) => void | Oui | — |
options | boolean | { capture?: boolean;} | Non | — |
Retourne
void
dispatchEvent — signatures de méthode
Signatures
(event: { type: string; bubbles?: boolean; cancelable?: boolean; }): booleanParamètres
| Nom | Type | Requis | Description |
|---|---|---|---|
event | { type: string; bubbles?: boolean; cancelable?: boolean;} | Oui | — |
Retourne
boolean
takePicture — signatures de méthode
Signatures
(options?: PictureOptions): Promise<CameraPicture>Paramètres
| Nom | Type | Requis | Description |
|---|---|---|---|
options | SpecPictureOptions | Non | — |
Retourne
Promise<SpecCameraPicture>
startRecording — signatures de méthode
Signatures
(options?: RecordingOptions): Promise<CameraRecording>Paramètres
| Nom | Type | Requis | Description |
|---|---|---|---|
options | SpecRecordingOptions | Non | — |
Retourne
Promise<SpecCameraRecording>
stopRecording — signatures de méthode
Signatures
(): Promise<CameraRecording>Paramètres
Aucun paramètre.
Retourne
Promise<SpecCameraRecording>
pausePreview — signatures de méthode
Signatures
(): Promise<void>Paramètres
Aucun paramètre.
Retourne
Promise<void>
resumePreview — signatures de méthode
Signatures
(): Promise<void>Paramètres
Aucun paramètre.
Retourne
Promise<void>
Généré depuis les déclarations TypeScript publiques : signatures, props et valeurs par défaut viennent de la source vérifiée, les descriptions de sa JSDoc. Aucune valeur par défaut n'est inventée.