518 lines
17 KiB
C#
518 lines
17 KiB
C#
using System;
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using System.Collections;
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using System.Collections.Generic;
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using System.Runtime.InteropServices;
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using Kill.UI.Components;
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using UnityEngine;
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using UnityEngine.UI;
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namespace Kill.UI.Pages
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{
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/// <summary>
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/// 二维码扫描器 - 调用摄像头扫描二维码
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/// Android: 使用 WebCamTexture + ZXing 解码
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/// iOS: 使用原生 AVCaptureSession（连续对焦 + 原生 QR 检测）
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/// </summary>
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public class ScanQRcode : MonoBehaviour
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{
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[Serializable]
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public enum ScanType
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{
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ConnectDevice, // 连接设备
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Other // 其他用途
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}
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[Header("UI组件")]
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public RawImage cameraPreview; // 摄像头预览
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[Header("扫描设置")]
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float scanInterval = 0.2f; // 扫描间隔（秒）
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public ScanType scanType = ScanType.ConnectDevice; // 扫描类型
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[Header("自动对焦")]
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[Tooltip("启用对焦")]
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public bool enableAutoFocus = true;
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#if UNITY_IOS && !UNITY_EDITOR
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[DllImport("__Internal")]
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private static extern void _StartNativeCamera(string gameObjectName);
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[DllImport("__Internal")]
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private static extern void _StopNativeCamera();
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#endif
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// 摄像头相关
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private WebCamTexture webCamTexture;
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private WebCamDevice currentDevice;
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private bool isScanning = false;
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private bool isProcessing = false;
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// 扫描结果回调
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public event Action<string> OnQRCodeScanned;
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// 预览纹理（所有平台共用清理逻辑）
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private Texture2D previewTexture;
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void OnEnable()
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{
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StartScan();
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}
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void OnDisable()
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{
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StopScan();
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}
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/// <summary>
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/// 开始扫描
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/// </summary>
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public void StartScan()
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{
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if (isScanning) return;
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#if UNITY_IOS && !UNITY_EDITOR
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// iOS: 使用原生 AVCaptureSession（连续对焦 + 原生 QR 检测）
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if (cameraPreview != null)
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cameraPreview.gameObject.SetActive(false);
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_StartNativeCamera(gameObject.name);
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isScanning = true;
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#else
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// Android/其他: 使用 WebCamTexture + ZXing
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StartCoroutine(InitializeCamera());
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#endif
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}
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/// <summary>
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/// 停止扫描
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/// </summary>
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public void StopScan()
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{
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isScanning = false;
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StopAllCoroutines();
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#if UNITY_IOS && !UNITY_EDITOR
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_StopNativeCamera();
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if (cameraPreview != null)
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cameraPreview.gameObject.SetActive(true);
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#endif
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if (webCamTexture != null && webCamTexture.isPlaying)
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{
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webCamTexture.Stop();
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webCamTexture = null;
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}
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if (previewTexture != null)
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{
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Destroy(previewTexture);
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previewTexture = null;
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}
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}
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/// <summary>
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/// 关闭扫码界面
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/// </summary>
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public void Close()
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{
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StopScan();
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gameObject.SetActive(false);
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}
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// ──── iOS 原生回调 ────
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/// <summary>
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/// 由 iOS 原生插件调用（通过 UnitySendMessage）
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/// </summary>
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public void OnNativeScanResult(string result)
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{
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if (string.IsNullOrEmpty(result))
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return;
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if (result == "CAMERA_READY")
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{
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Debug.Log("[ScanQRcode] 原生摄像头已就绪");
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return;
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}
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if (result.StartsWith("ERROR:"))
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{
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Debug.LogError($"[ScanQRcode] 原生摄像头错误: {result}");
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ToastUI.Show("100086");
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return;
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}
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Debug.Log($"[ScanQRcode] 原生扫描结果: {result}");
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ProcessScanResult(result);
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}
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// ──── Android / 编辑器的 WebCamTexture 方案 ────
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#if !UNITY_IOS || UNITY_EDITOR
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/// <summary>
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/// 初始化摄像头（WebCamTexture 方案）
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/// </summary>
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private IEnumerator InitializeCamera()
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{
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#if UNITY_ANDROID && !UNITY_EDITOR
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if (!UnityEngine.Android.Permission.HasUserAuthorizedPermission(UnityEngine.Android.Permission.Camera))
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{
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UnityEngine.Android.Permission.RequestUserPermission(UnityEngine.Android.Permission.Camera);
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yield return new WaitUntil(() => UnityEngine.Android.Permission.HasUserAuthorizedPermission(UnityEngine.Android.Permission.Camera));
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}
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if (!UnityEngine.Android.Permission.HasUserAuthorizedPermission(UnityEngine.Android.Permission.Camera))
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{
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ToastUI.Show("100085");
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yield break;
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}
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#else
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yield return Application.RequestUserAuthorization(UserAuthorization.WebCam);
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if (!Application.HasUserAuthorization(UserAuthorization.WebCam))
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{
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ToastUI.Show("100085");
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yield break;
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}
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#endif
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WebCamDevice[] devices = WebCamTexture.devices;
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if (devices.Length == 0)
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{
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ToastUI.Show("100086");
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yield break;
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}
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// 优先后置主摄
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string deviceName = devices[0].name;
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currentDevice = devices[0];
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for (int i = 0; i < devices.Length; i++)
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{
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if (!devices[i].isFrontFacing)
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{
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string lowerName = devices[i].name.ToLower();
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if (!lowerName.Contains("telephoto") && !lowerName.Contains("ultra wide"))
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{
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deviceName = devices[i].name;
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currentDevice = devices[i];
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break;
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}
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if (deviceName == devices[0].name)
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{
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deviceName = devices[i].name;
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currentDevice = devices[i];
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}
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}
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}
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Debug.Log($"[ScanQRcode] 选中摄像头: {deviceName}");
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webCamTexture = new WebCamTexture(deviceName, 2160, 30);
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webCamTexture.Play();
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yield return new WaitUntil(() => webCamTexture.width > 100);
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AdjustPreviewAspect();
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isScanning = true;
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StartCoroutine(PreviewUpdateCoroutine());
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StartCoroutine(ScanCoroutine());
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if (enableAutoFocus)
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{
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StartCoroutine(AutoFocusCoroutine());
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}
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}
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/// <summary>
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/// 自动对焦维护协程
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/// </summary>
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private IEnumerator AutoFocusCoroutine()
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{
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while (isScanning)
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{
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if (webCamTexture != null && webCamTexture.isPlaying)
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{
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webCamTexture.autoFocusPoint = new Vector2(0.5f, 0.5f);
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}
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yield return new WaitForSeconds(1f);
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}
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}
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/// <summary>
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/// 调整预览画面比例
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/// </summary>
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private void AdjustPreviewAspect()
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{
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if (webCamTexture == null || cameraPreview == null) return;
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int cameraWidth = webCamTexture.width;
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int cameraHeight = webCamTexture.height;
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RectTransform previewRect = cameraPreview.GetComponent<RectTransform>();
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int previewWidth = (int)previewRect.rect.width;
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int previewHeight = (int)previewRect.rect.height;
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if (previewTexture == null || previewTexture.width != previewWidth || previewTexture.height != previewHeight)
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{
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if (previewTexture != null)
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Destroy(previewTexture);
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previewTexture = new Texture2D(previewWidth, previewHeight, TextureFormat.RGB24, false);
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}
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CutAndRotateCameraFrame(cameraWidth, cameraHeight, previewWidth, previewHeight);
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cameraPreview.texture = previewTexture;
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cameraPreview.uvRect = new Rect(0, 0, 1, 1);
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previewRect.localEulerAngles = Vector3.zero;
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}
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/// <summary>
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/// 从相机画面裁切并旋转，生成预览画面
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/// </summary>
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private void CutAndRotateCameraFrame(int camW, int camH, int targetW, int targetH)
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{
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int cropY = (camW - targetH) / 2;
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Color32[] cameraPixels = webCamTexture.GetPixels32();
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Color32[] targetPixels = new Color32[targetW * targetH];
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for (int y = 0; y < targetH; y++)
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{
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for (int x = 0; x < targetW; x++)
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{
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int srcX = cropY + (targetH - 1 - y);
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int srcY = x;
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if (srcX >= 0 && srcX < camW && srcY >= 0 && srcY < camH)
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{
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int srcIndex = srcY * camW + srcX;
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int dstIndex = y * targetW + x;
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targetPixels[dstIndex] = cameraPixels[srcIndex];
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}
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}
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}
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previewTexture.SetPixels32(targetPixels);
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previewTexture.Apply();
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}
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[SerializeField] private float previewUpdateInterval = 0.03f;
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private IEnumerator PreviewUpdateCoroutine()
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{
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while (isScanning && webCamTexture != null && webCamTexture.isPlaying)
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{
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if (previewTexture != null)
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{
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CutAndRotateCameraFrame(webCamTexture.width, webCamTexture.height, previewTexture.width, previewTexture.height);
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}
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yield return new WaitForSeconds(previewUpdateInterval);
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}
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}
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/// <summary>
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/// 扫描协程（ZXing 解码）
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/// </summary>
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private IEnumerator ScanCoroutine()
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{
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yield return null;
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while (isScanning && webCamTexture != null && webCamTexture.isPlaying)
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{
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if (isProcessing)
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{
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yield return null;
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continue;
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}
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isProcessing = true;
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if (previewTexture != null)
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{
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Color32[] pixels = previewTexture.GetPixels32();
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int texWidth = previewTexture.width;
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int texHeight = previewTexture.height;
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byte[] rgbBytes = new byte[pixels.Length * 3];
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for (int i = 0; i < pixels.Length; i++)
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{
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rgbBytes[i * 3] = pixels[i].r;
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rgbBytes[i * 3 + 1] = pixels[i].g;
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rgbBytes[i * 3 + 2] = pixels[i].b;
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}
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string result = null;
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bool scanComplete = false;
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System.Threading.ThreadPool.QueueUserWorkItem(_ =>
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{
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try
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{
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result = DecodeQRCodeFromBytes(rgbBytes, texWidth, texHeight);
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}
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catch (Exception e)
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{
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Debug.LogError($"[ScanQRcode] 解码异常: {e.Message}");
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}
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finally
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{
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scanComplete = true;
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}
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});
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yield return new WaitUntil(() => scanComplete);
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if (!string.IsNullOrEmpty(result))
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{
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ProcessScanResult(result);
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}
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}
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isProcessing = false;
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yield return new WaitForSeconds(scanInterval);
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}
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}
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/// <summary>
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/// 从原始字节数据解析二维码（后台线程安全）
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/// </summary>
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private string DecodeQRCodeFromBytes(byte[] rgbBytes, int width, int height)
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{
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try
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{
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var luminanceSource = new ZXing.RGBLuminanceSource(rgbBytes, width, height);
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string result = TryDecodeWithBinarizer(luminanceSource);
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if (!string.IsNullOrEmpty(result))
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return result;
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}
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catch (Exception ex)
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{
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Debug.LogError($"二维码解析失败: {ex.Message}");
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}
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return null;
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}
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/// <summary>
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/// 尝试使用不同的二值化算法解码
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/// </summary>
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private string TryDecodeWithBinarizer(ZXing.LuminanceSource luminanceSource)
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{
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var hints = new Dictionary<ZXing.DecodeHintType, object>
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{
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{ ZXing.DecodeHintType.TRY_HARDER, true },
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{ ZXing.DecodeHintType.POSSIBLE_FORMATS, new List<ZXing.BarcodeFormat> { ZXing.BarcodeFormat.QR_CODE } }
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};
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var reader = new ZXing.QrCode.QRCodeReader();
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try
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{
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var binarizer = new ZXing.Common.HybridBinarizer(luminanceSource);
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var binaryBitmap = new ZXing.BinaryBitmap(binarizer);
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var result = reader.decode(binaryBitmap, hints);
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if (result != null)
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return result.Text;
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}
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catch { }
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try
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{
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var binarizer = new ZXing.Common.GlobalHistogramBinarizer(luminanceSource);
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var binaryBitmap = new ZXing.BinaryBitmap(binarizer);
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var result = reader.decode(binaryBitmap, hints);
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if (result != null)
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return result.Text;
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}
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catch { }
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return null;
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}
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#endif // !UNITY_IOS || UNITY_EDITOR
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// ──── 公共处理方法 ────
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/// <summary>
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/// 处理扫描结果
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/// </summary>
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private void ProcessScanResult(string result)
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{
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Debug.Log($"[ScanQRcode] 扫描结果: {result}");
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if (scanType == ScanType.ConnectDevice)
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{
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string macAddress = ExtractMacAddress(result);
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if (!string.IsNullOrEmpty(macAddress))
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{
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OnQRCodeScanned?.Invoke(macAddress);
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OnQRCodeScanned = null;
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}
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else
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{
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ToastUI.Show("100084");
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}
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}
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else
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{
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if (!string.IsNullOrEmpty(result))
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{
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OnQRCodeScanned?.Invoke(result);
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}
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else
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{
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ToastUI.Show("100084");
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}
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}
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}
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/// <summary>
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/// 从字符串中提取 MAC 地址
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/// </summary>
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private string ExtractMacAddress(string input)
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{
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if (string.IsNullOrEmpty(input))
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return null;
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var macKeyValueRegex = new System.Text.RegularExpressions.Regex(
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@"MAC:([0-9A-Fa-f]{2}:?[0-9A-Fa-f]{2}:?[0-9A-Fa-f]{2}:?[0-9A-Fa-f]{2}:?[0-9A-Fa-f]{2}:?[0-9A-Fa-f]{2})");
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var kvMatch = macKeyValueRegex.Match(input);
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if (kvMatch.Success)
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return FormatMacAddress(kvMatch.Groups[1].Value);
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var macColonRegex = new System.Text.RegularExpressions.Regex(
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@"[0-9A-Fa-f]{2}:[0-9A-Fa-f]{2}:[0-9A-Fa-f]{2}:[0-9A-Fa-f]{2}:[0-9A-Fa-f]{2}:[0-9A-Fa-f]{2}");
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var colonMatch = macColonRegex.Match(input);
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if (colonMatch.Success)
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return FormatMacAddress(colonMatch.Value);
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var macNoColonRegex = new System.Text.RegularExpressions.Regex(@"[0-9A-Fa-f]{12}");
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var noColonMatch = macNoColonRegex.Match(input);
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if (noColonMatch.Success)
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return FormatMacAddress(noColonMatch.Value);
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return null;
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}
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/// <summary>
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/// 格式化 MAC 地址为 XX:XX:XX:XX:XX:XX
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/// </summary>
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private string FormatMacAddress(string mac)
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{
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if (string.IsNullOrEmpty(mac))
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return null;
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string cleanMac = mac.Replace(":", "").Replace("-", "").ToUpper();
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if (cleanMac.Length != 12)
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return null;
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return string.Format("{0}:{1}:{2}:{3}:{4}:{5}",
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cleanMac.Substring(0, 2), cleanMac.Substring(2, 2),
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cleanMac.Substring(4, 2), cleanMac.Substring(6, 2),
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cleanMac.Substring(8, 2), cleanMac.Substring(10, 2));
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}
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void OnDestroy()
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{
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StopScan();
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gameObject.SetActive(false);
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}
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}
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}
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