优化

app/src/main/java/io/legado/app/ui/qrcode/QrCodeActivity.kt

@@ -20,7 +20,7 @@ class QrCodeActivity : BaseActivity<ActivityQrcodeCaptureBinding>(), OnScanResul
     override val binding by viewBinding(ActivityQrcodeCaptureBinding::inflate)
 
     private val selectQrImage = registerForActivityResult(ActivityResultContracts.GetContent()) {
-        it.readBytes(this)?.let { bytes ->
+        it?.readBytes(this)?.let { bytes ->
             val bitmap = BitmapFactory.decodeByteArray(bytes, 0, bytes.size)
             onScanResultCallback(QRCodeUtils.parseCodeResult(bitmap))
         }

app/src/main/java/io/legado/app/ui/rss/read/ReadRssActivity.kt

@@ -43,6 +43,7 @@ class ReadRssActivity : VMBaseActivity<ActivityRssReadBinding, ReadRssViewModel>
     private var customWebViewCallback: WebChromeClient.CustomViewCallback? = null
     private var webPic: String? = null
     private val saveImage = registerForActivityResult(FilePicker()) {
+        it ?: return@registerForActivityResult
         ACache.get(this).put(imagePathKey, it.toString())
         viewModel.saveImage(webPic, it.toString())
     }