华为扫码SDK集成(Kotlin及Swift实现)

作为移动开发码农，扫码功能几乎是绕不开的功能点，之前开发一般使用的是Zxing类库操作，最近发现有华为的扫码SDK可用且效果更好更好用，故记录下用Swift及Kotlin分别实现。

1. 相关资料

• 文档地址—- https://developer.huawei.com/consumer/cn/doc/development/HMSCore-Guides-V5/service-introduction-0000001050041994-V5
• 代码地址—- https://developer.huawei.com/consumer/cn/doc/development/HMSCore-Examples/android-sample-code-0000001050734383

2. Android实现

• 配置AppGallery Connect，这个直接看官方文档比较简单的，就一些个人信息或公司信息填入申请成为华为开发者
• 集成HMS Core SDK ， 同样的看官方文档即可
• 配置混淆脚本， 同上，哈哈，更简单
• 权限配置

<!--相机权限-->
<uses-permission android:name="android.permission.CAMERA" />
<!--读文件权限-->
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
<uses-feature android:name="android.hardware.camera" />
<uses-feature android:name="android.hardware.camera.autofocus" />

• 代码动态获取权限

  import android.Manifest
  import android.content.Intent
  import android.content.pm.PackageManager
  import android.os.Build
  import androidx.appcompat.app.AppCompatActivity
  import android.os.Bundle
  import android.widget.Toast
  import com.huawei.hms.hmsscankit.ScanUtil
  import com.huawei.hms.ml.scan.HmsScan
  import com.huawei.hms.ml.scan.HmsScanAnalyzerOptions
  import com.xlgz520.scantest.databinding.ActivityMainBinding
  
  class MainActivity : AppCompatActivity() {
  
    private lateinit var binding: ActivityMainBinding
  
    private val rCode = 10000
    private val requestCodeScan = 10001
  
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        binding = ActivityMainBinding.inflate(layoutInflater)
        setContentView(binding.root)
  
        binding.scan.setOnClickListener {
            // 请求权限
            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M){
                this.requestPermissions(
                    arrayOf(Manifest.permission.CAMERA, Manifest.permission.READ_EXTERNAL_STORAGE), rCode
                )
            }
        }
    }
  
    override fun onRequestPermissionsResult(
        requestCode: Int,
        permissions: Array<out String>,
        grantResults: IntArray) {
        if (grantResults.size < 2 || 
            grantResults[0] != PackageManager.PERMISSION_GRANTED || 
            grantResults[1] != PackageManager.PERMISSION_GRANTED) return
  
        if (requestCode == rCode){
            ScanUtil.startScan(this, requestCodeScan, HmsScanAnalyzerOptions.Creator().setHmsScanTypes(
                HmsScan.ALL_SCAN_TYPE).create())
        }
    }
  
    override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
        //当扫码页面结束后，处理扫码结果
        super.onActivityResult(requestCode, resultCode, data)
  
        if (resultCode != RESULT_OK || data == null) return
  
        if (requestCode == requestCodeScan){
            val obj: Any? = data.getParcelableExtra(ScanUtil.RESULT)
            if (obj is HmsScan){
                if (obj.getOriginalValue().isNotEmpty()){
                  // 这里就获取到了扫描结果,本demo只做了最简单的扫码功能,更多使用情况请查看上面的官方文档
                    Toast.makeText(this, obj.getOriginalValue(), Toast.LENGTH_SHORT).show()
                }
                return
            }
        }
    }
  }
  

  3. iOS实现

• 集成HMS Core SDK，本文使用的是cocoapods方式安装

  pod 'ScanKitFrameWork', '~> 1.0.2.300'

• 指定权限，打开项目的info.plist文件，增加以下权限

  <key>NSCameraUsageDescription</key>
  <string>请允许APP访问您的相机</string>
  <key>NSPhotoLibraryUsageDescription</key>
  <string>请允许APP访问您的相册</string>
  

• 代码实现

  func initV(){
    let btn = UIButton()
    self.view.addSubview(btn)
    // 这里使用的snapkit布局
    btn.snp.makeConstraints { make in
        make.center.equalTo(self.view.snp.center)
        make.width.equalTo(80)
        make.height.equalTo(35)
    }
    btn.backgroundColor = .red
    btn.setTitleColor(.white, for: .normal)
    btn.setTitle("点我扫码", for: UIControlState.normal)
    btn.addTarget(self, action: #selector(scan), for: .touchUpInside)
  }
  
  @objc func scan(){
     //"QR_CODE | DATA_MATRIX"表示只扫描QR和DataMatrix的码
     let options = HmsScanOptions.init(scanFormatType:
                                       UInt32(HMSScanFormatTypeCode.QR_CODE.rawValue |          
                                              HMSScanFormatTypeCode.DATA_MATRIX.rawValue), 
                                       photo: false)
     let scanVc = HmsDefaultScanViewController(defaultScanWithFormatType: options)!
     scanVc.defaultScanDelegate = self
     self.view.addSubview(scanVc.view)
     self.addChildViewController(scanVc)
     //隐藏导航栏
     self.navigationController?.isNavigationBarHidden = false
  }
  
  // 扫描本地图片返回结果
  func defaultScanImagePickerDelegate(for image: UIImage!) {
    DispatchQueue.main.async {
      //在主线程内处理数据
  
    }
  }
  
  // 扫描结果
  func defaultScanDelegate(forDicResult resultDic: [AnyHashable : Any]!) {
    DispatchQueue.main.async {
      /**
      ResultPoint = (
      {
      posX = "323.595001";
      posY = "600.075012";
    },
      {
      posX = "321.975006";
      posY = "316.575012";
    },
      {
      posX = "607.905029";
      posY = "327.1050011";
    },
      {
      posX = "609.525024";
      posY = "610.605042";
    }
    );
      //曝光值
      exposureAdjustmentValue = 0;
      //码制
      formatvalue = "QR_CODE";
      //放大倍数
      zoomValue = 1.0;
      //场景类型
      sceneType = Text;
      //码值
      text = ssssss
      */
      //在主线程内处理数据  上面注释的就是返回的字典里可取出的各项相关数据
      print(resultDic["text"] as! String)
    }
  }