...

app/src/main/java/com/base/pdfviewerscannerwhite/ui/main/MainActivity.kt

@@ -74,11 +74,13 @@ class MainActivity : BaseActivity<ActivityMain2Binding>(), MainView {
 
     override fun initView() {
 
-        actionId = intent.extras?.getString("actionId") ?: ""
-        LogEx.logDebug(TAG, "initView actionId=$actionId", true)
         mainPresenter = MainPresenter(this, this, lifecycleScope)
         mainPresenter.initScannerLauncher(this)
 
+        actionId = intent.extras?.getString("actionId") ?: ""
+        LogEx.logDebug(TAG, "initView actionId=$actionId", true)
+
+
 
         addDeskShortCut()
 
@@ -257,6 +259,7 @@ class MainActivity : BaseActivity<ActivityMain2Binding>(), MainView {
     override fun onDestroy() {
         super.onDestroy()
         LogEx.logDebug(TAG, "onDestroy")
+        mainPresenter.scannerLauncher = null
     }
 
     override fun onSaveInstanceState(outState: Bundle) {

app/src/main/java/com/base/pdfviewerscannerwhite/ui/main/MainPresenter.kt

@@ -62,7 +62,7 @@ class MainPresenter(
     val excelDocuments = arrayListOf<DocumentBean>()
     val pptDocuments = arrayListOf<DocumentBean>()
 
-    private lateinit var scannerLauncher: ActivityResultLauncher<IntentSenderRequest>
+    var scannerLauncher: ActivityResultLauncher<IntentSenderRequest>? = null
 
     companion object {
         var mainRefreshData: Boolean = false
@@ -300,6 +300,7 @@ class MainPresenter(
         return new
     }
 
+    var scannerLauncherRegister: Boolean = false
     fun initScannerLauncher(appCompatActivity: AppCompatActivity) {
         scannerLauncher =
             appCompatActivity.registerForActivityResult(ActivityResultContracts.StartIntentSenderForResult()) { activityResult ->
@@ -321,6 +322,8 @@ class MainPresenter(
                     mainView.handleActivityGmsScanResult(null, null)
                 }
             }
+
+        scannerLauncherRegister = true
     }
 
 
@@ -341,6 +344,7 @@ class MainPresenter(
 
     fun starGmsScan(activity: Activity) {
         runCatching {
+            if (scannerLauncher == null && !scannerLauncherRegister) return
             val options =
                 GmsDocumentScannerOptions.Builder()
                     .setScannerMode(GmsDocumentScannerOptions.SCANNER_MODE_BASE)
@@ -356,7 +360,7 @@ class MainPresenter(
             GmsDocumentScanning.getClient(options.build())
                 .getStartScanIntent(activity)
                 .addOnSuccessListener { intentSender: IntentSender ->
-                    scannerLauncher.launch(IntentSenderRequest.Builder(intentSender).build())
+                    scannerLauncher?.launch(IntentSenderRequest.Builder(intentSender).build())
                 }
                 .addOnFailureListener { e: Exception ->
                 }