@bigin/ns-firebase/mlkit/custommodel/custommodel-common.js

Fire. Base. Firebase!

import { knownFolders, File, Property } from '@nativescript/core';
import { MLKitCameraView } from '../mlkit-cameraview';
export const localModelFileProperty = new Property({
	name: 'localModelFile',
	defaultValue: null,
});
export const labelsFileProperty = new Property({
	name: 'labelsFile',
	defaultValue: null,
});
export const modelInputShapeProperty = new Property({
	name: 'modelInputShape',
	defaultValue: null,
});
export const modelInputTypeProperty = new Property({
	name: 'modelInputType',
	defaultValue: null,
});
export const maxResultsProperty = new Property({
	name: 'maxResults',
	defaultValue: 5,
});
export class MLKitCustomModel extends MLKitCameraView {
	[localModelFileProperty.setNative](value) {
		this.localModelFile = value;
	}
	[labelsFileProperty.setNative](value) {
		this.labelsFile = value;
		if (value.indexOf('~/') === 0) {
			this.labels = getLabelsFromAppFolder(value);
		} else {
			console.log("For the 'labelsFile' property, use the ~/ prefix for now..");
			return;
		}
	}
	[maxResultsProperty.setNative](value) {
		this.maxResults = parseInt(value);
	}
	[modelInputShapeProperty.setNative](value) {
		if (typeof value === 'string') {
			this.modelInputShape = value.split(',').map((v) => parseInt(v.trim()));
		}
	}
	[modelInputTypeProperty.setNative](value) {
		this.modelInputType = value;
	}
}
MLKitCustomModel.scanResultEvent = 'scanResult';
localModelFileProperty.register(MLKitCustomModel);
labelsFileProperty.register(MLKitCustomModel);
maxResultsProperty.register(MLKitCustomModel);
modelInputShapeProperty.register(MLKitCustomModel);
modelInputTypeProperty.register(MLKitCustomModel);
export function getLabelsFromAppFolder(labelsFile) {
	const labelsPath = knownFolders.currentApp().path + labelsFile.substring(1);
	return getLabelsFromFile(labelsPath);
}
export function getLabelsFromFile(labelsFile) {
	const fileContents = File.fromPath(labelsFile).readTextSync();
	const lines = fileContents.split('\n');
	while (lines[lines.length - 1].trim() === '') {
		lines.pop();
	}
	return lines;
}
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