设备（1）

app/src/main/java/com/example/defenseapplication/home/AddDeviceActivity.kt

@@ -1,18 +1,26 @@
 package com.example.defenseapplication.home
 
+import android.Manifest
+import android.app.Activity
 import android.content.Intent
+import android.content.pm.PackageManager
+import android.os.Build
 import android.os.Bundle
 import android.os.Handler
 import android.os.Looper
 import android.view.View
 import android.widget.Toast
+import androidx.activity.result.contract.ActivityResultContracts
 import androidx.appcompat.app.AppCompatActivity
+import androidx.core.content.ContextCompat
 import androidx.recyclerview.widget.GridLayoutManager
 import com.example.defenseapplication.R
 import com.example.defenseapplication.adapter.AddDeviceAdapter
 import com.example.defenseapplication.adapter.Device
 import com.example.defenseapplication.databinding.AddDeviceActivityBinding
 import com.gyf.immersionbar.ImmersionBar
+import com.maning.mlkitscanner.scan.MNScanManager
+import com.maning.mlkitscanner.scan.callback.act.MNScanCallback
 
 //添加设备页面
 class AddDeviceActivity : AppCompatActivity() {
@@ -20,6 +28,86 @@ class AddDeviceActivity : AppCompatActivity() {
     private lateinit var binding: AddDeviceActivityBinding
     private lateinit var adapter: AddDeviceAdapter
     private val mainHandler = Handler(Looper.getMainLooper())
+
+    private val requestPermissionsLauncher = registerForActivityResult(
+        ActivityResultContracts.RequestMultiplePermissions()
+    ) { permissions ->
+        val cameraGranted = permissions[Manifest.permission.CAMERA] ?: false
+
+        val storageGranted = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
+            permissions[Manifest.permission.READ_MEDIA_IMAGES] ?: false
+        } else {
+            permissions[Manifest.permission.READ_EXTERNAL_STORAGE] ?: false
+        }
+
+        if (cameraGranted && storageGranted) {
+            startScan()
+        } else {
+            Toast.makeText(this, R.string.permission_denied, Toast.LENGTH_SHORT).show()
+        }
+    }
+
+    private fun checkPermissionsAndScan() {
+        val cameraPermission = ContextCompat.checkSelfPermission(
+            this,
+            Manifest.permission.CAMERA
+        )
+
+        val storagePermission = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
+            ContextCompat.checkSelfPermission(
+                this,
+                Manifest.permission.READ_MEDIA_IMAGES
+            )
+        } else {
+            ContextCompat.checkSelfPermission(
+                this,
+                Manifest.permission.WRITE_EXTERNAL_STORAGE
+            )
+        }
+
+        if (cameraPermission == PackageManager.PERMISSION_GRANTED &&
+            storagePermission == PackageManager.PERMISSION_GRANTED) {
+            startScan()
+        } else {
+            val permissionsToRequest = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
+                arrayOf(
+                    Manifest.permission.CAMERA,
+                    Manifest.permission.READ_MEDIA_IMAGES
+                )
+            } else {
+                arrayOf(
+                    Manifest.permission.CAMERA,
+                    Manifest.permission.WRITE_EXTERNAL_STORAGE
+                )
+            }
+            requestPermissionsLauncher.launch(permissionsToRequest)
+        }
+    }
+
+    private fun startScan() {
+        MNScanManager.startScan(this, object: MNScanCallback {
+            override fun onActivityResult(resultCode: Int, data: Intent?) {
+                when (resultCode) {
+                    MNScanManager.RESULT_SUCCESS -> {
+                        val result = data?.getStringArrayListExtra(MNScanManager.INTENT_KEY_RESULT_SUCCESS)
+                        if (!result.isNullOrEmpty()) {
+                            ToastUtils.showToast(this@AddDeviceActivity, "扫码成功: $result")
+                        } else {
+                            ToastUtils.showToast(this@AddDeviceActivity, "扫码结果为空")
+                        }
+                    }
+                    MNScanManager.RESULT_FAIL -> {
+                        val error = data?.getStringExtra(MNScanManager.INTENT_KEY_RESULT_ERROR)
+                        ToastUtils.showToast(this@AddDeviceActivity, "扫码失败: $error")
+                    }
+                    MNScanManager.RESULT_CANCLE -> {
+                        ToastUtils.showToast(this@AddDeviceActivity, "扫码取消")
+                    }
+                }
+            }
+        })
+    }
+
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         binding = AddDeviceActivityBinding.inflate(layoutInflater)
@@ -32,6 +120,10 @@ class AddDeviceActivity : AppCompatActivity() {
             finish()
         }
 
+        binding.btnScanAdd.setOnClickListener {
+            checkPermissionsAndScan()
+        }
+
         // 开始播放扫描动画，动画结束后再显示设备列表
         startScanAnimationThenShowList()
     }