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/**
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* 引用 Android 系统库，示例如下：
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* import { Context } from "android.content.Context";
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* [可选实现，按需引入]
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*/
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/* 引入 interface.uts 文件中定义的变量 */
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import { SCANNING_PHOTO_RESULT, SCANNING_PHOTO_RESULT_BOUND, SCANNING_PHOTO_RESULT_POS } from '../interface.uts';
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/* 引入 unierror.uts 文件中定义的变量 */
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import Context from 'android.content.Context'
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import IOException from 'java.io.IOException'
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import InputStream from 'java.io.InputStream'
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import Uri from 'android.net.Uri';
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import File from 'java.io.File'
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import Bitmap from "android.graphics.Bitmap"
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import BarcodeScanner from "com.google.mlkit.vision.barcode.BarcodeScanner"
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import BarcodeScannerOptions from "com.google.mlkit.vision.barcode.BarcodeScannerOptions"
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import BarcodeScanning from "com.google.mlkit.vision.barcode.BarcodeScanning"
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import ZoomSuggestionOptions from "com.google.mlkit.vision.barcode.ZoomSuggestionOptions"
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import ZoomCallback from "com.google.mlkit.vision.barcode.ZoomSuggestionOptions.ZoomCallback"
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import Barcode from "com.google.mlkit.vision.barcode.common.Barcode"
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import InputImage from "com.google.mlkit.vision.common.InputImage"
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import Task from "com.google.android.gms.tasks.Task"
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import List from "java.util.List"
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import ByteBuffer from 'java.nio.ByteBuffer'
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import ImageFormat from 'android.graphics.ImageFormat'
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/**
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* 从相册中选取图片进行解码
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* @public chooseImageDecodeQr
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*/
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export function chooseImage() : Promise<SCANNING_PHOTO_RESULT | null> {
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return new Promise((res) => {
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uni.chooseImage({
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count: 1,
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success(evt : ChooseImageSuccess) {
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console.log('**')
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if (evt.tempFilePaths.length > 0) {
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console.log(evt, "----")
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const imgs = evt.tempFilePaths[0] as string;
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try {
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const decodedPath = Uri.decode(imgs).substring(7)
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const file = File(decodedPath)
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let image = InputImage.fromFilePath(UTSAndroid.getAppContext() as Context, Uri.fromFile(file));
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let scanner = BarcodeScanning.getClient();
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scanner.process(image)
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.addOnSuccessListener((barcodes) => {
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let listpos = [] as number[][][]
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let bounedlist = [] as SCANNING_PHOTO_RESULT_BOUND[]
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let rulstText = [] as string[]
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for (barcode in barcodes) {
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// 位置信息
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let bounds = barcode.boundingBox
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// 坐标
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let corners = barcode.cornerPoints
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// 解析的内容
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let rawValue = barcode.rawValue
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// 码的格式
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let valueType = barcode.valueType
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if (rawValue != null && bounds != null && corners != null) {
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let iminfo = { width: bounds!.width(), height: bounds!.height(), centerX: bounds!.centerX(), centerY: bounds!.centerY() } as SCANNING_PHOTO_RESULT_BOUND
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let posinfo = [] as number[][]
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for (pos in corners) {
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posinfo.push([pos!.x as number, pos!.y as number] as number[])
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}
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listpos.push(posinfo)
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bounedlist.push(iminfo)
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rulstText.push(rawValue)
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}
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}
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res({
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url: imgs,
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position: listpos,
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bounds: bounedlist,
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text: rulstText
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} as SCANNING_PHOTO_RESULT)
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})
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} catch (e : IOException) {
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res(null)
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}
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}
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},
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fail() {
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res(null)
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}
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})
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})
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}
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/**
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* 给定图片路径Uri解析图片。
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* @public decoderUriPathToQr
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*/
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export function decoderUriPathToQr(filePath : Uri) : Promise<SCANNING_PHOTO_RESULT | null> {
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return new Promise((res) => {
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let image = InputImage.fromFilePath(UTSAndroid.getAppContext() as Context, filePath);
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let scanner = BarcodeScanning.getClient();
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scanner.process(image)
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.addOnSuccessListener((barcodes) => {
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let listpos = [] as number[][][]
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let bounedlist = [] as SCANNING_PHOTO_RESULT_BOUND[]
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let rulstText = [] as string[]
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for (barcode in barcodes) {
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// 位置信息
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let bounds = barcode.boundingBox
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// 坐标
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let corners = barcode.cornerPoints
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// 解析的内容
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let rawValue = barcode.rawValue
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// 码的格式
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let valueType = barcode.valueType
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if (rawValue != null && bounds != null && corners != null) {
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let iminfo = { width: bounds!.width(), height: bounds!.height(), centerX: bounds!.centerX(), centerY: bounds!.centerY() } as SCANNING_PHOTO_RESULT_BOUND
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let posinfo = [] as number[][]
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for (pos in corners) {
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posinfo.push([pos!.x as number, pos!.y as number] as number[])
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}
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listpos.push(posinfo)
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bounedlist.push(iminfo)
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rulstText.push(rawValue)
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}
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}
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res({
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url: "",
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position: listpos,
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bounds: bounedlist,
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text: rulstText
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} as SCANNING_PHOTO_RESULT)
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})
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})
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}
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/**
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* 给定ImageBuffer
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* @public decoderBuffToQr
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*/
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export function decoderBuffToQr(bitmap : ByteArray, width : Number, height : Number, ration : Number) : Promise<SCANNING_PHOTO_RESULT | null> {
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return new Promise((res) => {
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let options = BarcodeScannerOptions.Builder()
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.setBarcodeFormats(
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Barcode.FORMAT_QR_CODE,
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Barcode.FORMAT_EAN_13,
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Barcode.FORMAT_CODE_128,
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Barcode.FORMAT_CODABAR
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)
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.build()
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let image = InputImage.fromByteArray(bitmap, width.toInt(), height.toInt(), ration.toInt(), InputImage.IMAGE_FORMAT_NV21)
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// 如果只扫qr开启这行，速度快一点。
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let scanner = BarcodeScanning.getClient(options);
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// let scanner = BarcodeScanning.getClient();
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scanner.process(image)
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.addOnSuccessListener((barcodes) => {
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let listpos = [] as number[][][]
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let bounedlist = [] as SCANNING_PHOTO_RESULT_BOUND[]
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let rulstText = [] as string[]
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for (barcode in barcodes) {
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// 位置信息
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let bounds = barcode.boundingBox
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// 坐标
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let corners = barcode.cornerPoints
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// 解析的内容
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let rawValue = barcode.rawValue
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// 码的格式
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let valueType = barcode.valueType
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if (rawValue != null && bounds != null && corners != null) {
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let iminfo = { width: bounds!.width(), height: bounds!.height(), centerX: bounds!.centerX(), centerY: bounds!.centerY() } as SCANNING_PHOTO_RESULT_BOUND
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let posinfo = [] as number[][]
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for (pos in corners) {
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posinfo.push([pos!.x as number, pos!.y as number] as number[])
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}
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listpos.push(posinfo)
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bounedlist.push(iminfo)
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rulstText.push(rawValue)
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}
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}
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res({
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url: "",
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position: listpos,
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bounds: bounedlist,
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text: rulstText
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} as SCANNING_PHOTO_RESULT)
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})
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.addOnFailureListener((e) => {
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res(null)
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})
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})
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}
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/**
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* 提供一个网络图片地址进行解码
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* @public urlPathDecoderQr
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*/
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export function urlPathDecoderQr(url : String) : Promise<SCANNING_PHOTO_RESULT | null> {
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return new Promise((res) => {
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uni.downloadFile({
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url,
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success(res) {
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const contentResolver = UTSAndroid.getAppContext()!.contentResolver
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let decodedPath = res.tempFilePath
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if (res.tempFilePath.indexOf('file://') > -1) {
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decodedPath = Uri.decode(res.tempFilePath).substring(7)
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}
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try {
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const file = File(decodedPath)
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let image = InputImage.fromFilePath(UTSAndroid.getAppContext() as Context, Uri.fromFile(file));
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let scanner = BarcodeScanning.getClient();
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scanner.process(image)
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.addOnSuccessListener((barcodes) => {
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let listpos = [] as number[][][]
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let bounedlist = [] as SCANNING_PHOTO_RESULT_BOUND[]
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let rulstText = [] as string[]
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for (barcode in barcodes) {
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// 位置信息
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let bounds = barcode.boundingBox
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// 坐标
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let corners = barcode.cornerPoints
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// 解析的内容
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let rawValue = barcode.rawValue
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// 码的格式
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let valueType = barcode.valueType
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if (rawValue != null && bounds != null && corners != null) {
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let iminfo = { width: bounds!.width(), height: bounds!.height(), centerX: bounds!.centerX(), centerY: bounds!.centerY() } as SCANNING_PHOTO_RESULT_BOUND
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let posinfo = [] as number[][]
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for (pos in corners) {
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posinfo.push([pos!.x as number, pos!.y as number] as number[])
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}
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listpos.push(posinfo)
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bounedlist.push(iminfo)
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rulstText.push(rawValue)
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}
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}
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res({
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url: url,
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position: listpos,
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bounds: bounedlist,
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text: rulstText
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} as SCANNING_PHOTO_RESULT)
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})
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} catch (e : IOException) {
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res(null)
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}
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},
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fail() {
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res(null)
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}
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})
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})
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}
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