byGalax
49 lines
1.4 KiB
TypeScript
49 lines
1.4 KiB
TypeScript
import * as ImagePicker from 'expo-image-picker';
|
|
|
|
export interface PickedImage {
|
|
uri: string;
|
|
mimeType: string;
|
|
sizeBytes: number;
|
|
width: number;
|
|
height: number;
|
|
}
|
|
|
|
// Pick an image from the photo library. Requests permission on demand;
|
|
// returns null on cancel / denial.
|
|
export async function pickFromLibrary(): Promise<PickedImage | null> {
|
|
const perm = await ImagePicker.requestMediaLibraryPermissionsAsync();
|
|
if (!perm.granted) return null;
|
|
const res = await ImagePicker.launchImageLibraryAsync({
|
|
mediaTypes: ImagePicker.MediaTypeOptions.Images,
|
|
quality: 0.85,
|
|
base64: false,
|
|
exif: false,
|
|
});
|
|
if (res.canceled || res.assets.length === 0) return null;
|
|
return toPicked(res.assets[0]!);
|
|
}
|
|
|
|
// Capture an image via the device camera. Same return shape as
|
|
// pickFromLibrary so call sites can stay shape-agnostic.
|
|
export async function captureFromCamera(): Promise<PickedImage | null> {
|
|
const perm = await ImagePicker.requestCameraPermissionsAsync();
|
|
if (!perm.granted) return null;
|
|
const res = await ImagePicker.launchCameraAsync({
|
|
quality: 0.85,
|
|
base64: false,
|
|
exif: false,
|
|
});
|
|
if (res.canceled || res.assets.length === 0) return null;
|
|
return toPicked(res.assets[0]!);
|
|
}
|
|
|
|
function toPicked(asset: ImagePicker.ImagePickerAsset): PickedImage {
|
|
return {
|
|
uri: asset.uri,
|
|
mimeType: asset.mimeType ?? 'image/jpeg',
|
|
sizeBytes: asset.fileSize ?? 0,
|
|
width: asset.width,
|
|
height: asset.height,
|
|
};
|
|
}
|