二维码扫描库更新到最新版本
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5b62779246
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package com.rehome.zhdcoa.ui.activity
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import android.Manifest
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import android.annotation.SuppressLint
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import android.content.Intent
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import android.content.pm.PackageManager
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import android.graphics.Rect
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import android.graphics.RectF
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import android.os.Bundle
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import android.view.View
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import android.widget.Toast
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import androidx.camera.core.ImageCapture
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import androidx.camera.view.LifecycleCameraController
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import androidx.core.app.ActivityCompat
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import androidx.core.content.ContextCompat
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import com.google.mlkit.vision.barcode.BarcodeScannerOptions
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import com.google.mlkit.vision.barcode.BarcodeScanning
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import com.google.mlkit.vision.barcode.common.Barcode
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import com.google.mlkit.vision.common.InputImage
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import com.rehome.zhdcoa.base.BaseActivityOaToolbarViewBinding
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import com.rehome.zhdcoa.databinding.ActivityQrCodeNewBinding
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import java.util.concurrent.ExecutorService
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import java.util.concurrent.Executors
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/**
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* date:2025/02/25 14:05:28
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* author:HuangWenfei
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* description:二维码扫描
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*/
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class QrCodeNewActivity : BaseActivityOaToolbarViewBinding<ActivityQrCodeNewBinding>() {
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private lateinit var lifecycleCameraController: LifecycleCameraController
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private lateinit var cameraExecutor: ExecutorService
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private val CAMERA_REQUEST_CAMERA_SCAN: Int = 88 //请求码
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override fun getViewBinding() = ActivityQrCodeNewBinding.inflate(layoutInflater)
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override fun getToolbar() = binding.toolbarView.toolbar
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override fun initView() {
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initToolbar("二维码/条码扫描")
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setLeftOnClickListener { finish() }
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checkPermission()
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}
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override fun initData() {
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}
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private fun checkPermission() {
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//检测摄像头权限
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if (!context.packageManager.hasSystemFeature(PackageManager.FEATURE_CAMERA_ANY)) {
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binding.frCamera.visibility = View.GONE
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Toast.makeText(
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context,
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"权限拒绝,请手动设置开启APP访问摄像头权限",
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Toast.LENGTH_LONG
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).show()
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return
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}
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//动态权限申请
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if (ContextCompat.checkSelfPermission(
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context,
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Manifest.permission.CAMERA
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) != PackageManager.PERMISSION_GRANTED
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) {
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binding.frCamera.visibility = View.GONE
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//权限请求
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ActivityCompat.requestPermissions(
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this,
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arrayOf<String>(Manifest.permission.CAMERA),
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CAMERA_REQUEST_CAMERA_SCAN
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)
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} else {
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//已授权，打开摄像头扫描
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initController()
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}
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}
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override fun onRequestPermissionsResult(
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requestCode: Int,
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permissions: Array<String>,
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grantResults: IntArray
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) {
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super.onRequestPermissionsResult(requestCode, permissions, grantResults)
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if (CAMERA_REQUEST_CAMERA_SCAN == requestCode) {
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if (grantResults.isNotEmpty() && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
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binding.frCamera.visibility = View.VISIBLE
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//已授权，打开摄像头扫描
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initController()
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} else {
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binding.frCamera.visibility = View.GONE
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//权限拒绝
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Toast.makeText(
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this,
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"权限拒绝,请手动设置开启APP访问摄像头权限",
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Toast.LENGTH_SHORT
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).show()
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}
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}
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}
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@SuppressLint("UnsafeOptInUsageError")
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private fun initController() {
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//配置当前扫码格式
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val options = BarcodeScannerOptions.Builder()
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.setBarcodeFormats(
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Barcode.FORMAT_QR_CODE,
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Barcode.FORMAT_AZTEC
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).build()
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//获取解析器
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val detector = BarcodeScanning.getClient(options)
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cameraExecutor = Executors.newSingleThreadExecutor()
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lifecycleCameraController = LifecycleCameraController(this)
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lifecycleCameraController.bindToLifecycle(this)
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lifecycleCameraController.imageCaptureFlashMode = ImageCapture.FLASH_MODE_AUTO
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lifecycleCameraController.setImageAnalysisAnalyzer(
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cameraExecutor
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) { imageProxy ->
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val mediaImage = imageProxy.image
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if (mediaImage != null) {
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val image = InputImage.fromMediaImage(
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mediaImage,
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imageProxy.imageInfo.rotationDegrees
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)
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detector.process(image)
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.addOnSuccessListener { barCodes ->
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if (barCodes.size > 0) {
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showLog("barCodes: ${barCodes.size}")
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//接收到结果后，就关闭解析
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detector.close()
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initScale(image.width, image.height)
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val list = ArrayList<RectF>()
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val strList = ArrayList<String>()
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barCodes.forEach { barcode ->
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barcode.boundingBox?.let { rect ->
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val translateRect = translateRect(rect)
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list.add(translateRect)
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strList.add(barcode.rawValue ?: "No Value")
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}
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}
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binding.scanView.setRectList(list)
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judgeIntent(strList)
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}
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}
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.addOnFailureListener {
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showLog("Error: ${it.message}")
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}
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.addOnCompleteListener {
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imageProxy.close()
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}
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}
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}
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binding.previewView.controller = lifecycleCameraController
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}
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private fun judgeIntent(list: ArrayList<String>) {
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val sb = StringBuilder()
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list.forEach {
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sb.append(it)
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}
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intentToResult(sb.toString().trim())
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}
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private fun intentToResult(result: String) {
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val resultIntent = Intent()
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val bundle = Bundle()
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bundle.putString("code", result)
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resultIntent.putExtras(bundle)
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setResult(RESULT_OK, resultIntent)
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finish();
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}
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private var scaleX = 0f
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private var scaleY = 0f
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private fun translateX(x: Float): Float = x * scaleX
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private fun translateY(y: Float): Float = y * scaleY
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//将扫描的矩形换算为当前屏幕大小
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private fun translateRect(rect: Rect) = RectF(
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translateX(rect.left.toFloat()),
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translateY(rect.top.toFloat()),
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translateX(rect.right.toFloat()),
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translateY(rect.bottom.toFloat())
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)
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//初始化缩放比例
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private fun initScale(imageWidth: Int, imageHeight: Int) {
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scaleY = binding.scanView.height.toFloat() / imageWidth.toFloat()
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scaleX = binding.scanView.width.toFloat() / imageHeight.toFloat()
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}
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}
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@ -0,0 +1,50 @@
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<?xml version="1.0" encoding="utf-8"?>
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<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
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xmlns:tools="http://schemas.android.com/tools"
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android:layout_width="match_parent"
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android:layout_height="match_parent"
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android:orientation="vertical"
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tools:context=".ui.activity.QrCodeNewActivity">
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<include
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android:id="@+id/toolbarView"
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layout="@layout/layout_base" />
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<FrameLayout
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android:id="@+id/fr_camera"
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android:layout_width="match_parent"
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android:layout_height="match_parent">
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<androidx.camera.view.PreviewView
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android:id="@+id/previewView"
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android:layout_width="match_parent"
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android:layout_height="match_parent" />
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<LinearLayout
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android:layout_width="wrap_content"
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android:layout_height="wrap_content"
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android:gravity="center"
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android:layout_gravity="center"
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android:orientation="vertical">
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<LinearLayout
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android:layout_width="wrap_content"
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android:layout_height="wrap_content"
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android:background="@drawable/scan_bg"
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android:orientation="vertical">
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<com.rehome.zhdcoa.weiget.ScanView
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android:id="@+id/scanView"
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android:layout_width="250dp"
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android:layout_height="250dp"
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android:background="@android:color/transparent" />
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</LinearLayout>
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<TextView
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android:layout_width="wrap_content"
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android:layout_height="wrap_content"
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android:layout_marginTop="10dp"
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android:textSize="16sp"
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android:textColor="#666666"
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android:textStyle="bold"
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android:text="@string/scan_text"/>
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</LinearLayout>
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</FrameLayout>
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</LinearLayout>
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