diff --git a/app/src/main/java/io/legado/app/utils/IntentType.kt b/app/src/app/java/io/legado/app/help/IntentType.kt
similarity index 89%
rename from app/src/main/java/io/legado/app/utils/IntentType.kt
rename to app/src/app/java/io/legado/app/help/IntentType.kt
index e1b88f6c2..ff2d0632d 100644
--- a/app/src/main/java/io/legado/app/utils/IntentType.kt
+++ b/app/src/app/java/io/legado/app/help/IntentType.kt
@@ -1,21 +1,20 @@
-package io.legado.app.utils
+package io.legado.app.help
 
 import android.net.Uri
+import androidx.annotation.Keep
 import java.io.File
 
+@Keep
 object IntentType {
 
-    @JvmStatic
     fun from(uri: Uri): String? {
         return from(uri.toString())
     }
 
-    @JvmStatic
     fun from(file: File): String? {
         return from(file.absolutePath)
     }
 
-    @JvmStatic
     fun from(path: String?): String? {
         return when (path?.substringAfterLast(".")?.lowercase()) {
             "apk" -> "application/vnd.android.package-archive"
diff --git a/app/src/google/java/io/legado/app/help/IntentType.kt b/app/src/google/java/io/legado/app/help/IntentType.kt
new file mode 100644
index 000000000..d884120e5
--- /dev/null
+++ b/app/src/google/java/io/legado/app/help/IntentType.kt
@@ -0,0 +1,28 @@
+package io.legado.app.help
+
+import android.net.Uri
+import androidx.annotation.Keep
+import java.io.File
+
+@Keep
+object IntentType {
+
+    fun from(uri: Uri): String? {
+        return from(uri.toString())
+    }
+
+    fun from(file: File): String? {
+        return from(file.absolutePath)
+    }
+
+    fun from(path: String?): String? {
+        return when (path?.substringAfterLast(".")?.lowercase()) {
+            "m4a", "mp3", "mid", "xmf", "ogg", "wav" -> "video/*"
+            "3gp", "mp4" -> "audio/*"
+            "jpg", "gif", "png", "jpeg", "bmp" -> "image/*"
+            "txt", "json" -> "text/plain"
+            else -> null
+        }
+    }
+
+}
\ No newline at end of file
diff --git a/app/src/main/java/io/legado/app/service/DownloadService.kt b/app/src/main/java/io/legado/app/service/DownloadService.kt
index 1677d2d65..e5bfe2f58 100644
--- a/app/src/main/java/io/legado/app/service/DownloadService.kt
+++ b/app/src/main/java/io/legado/app/service/DownloadService.kt
@@ -12,7 +12,7 @@ import io.legado.app.R
 import io.legado.app.base.BaseService
 import io.legado.app.constant.AppConst
 import io.legado.app.constant.IntentAction
-import io.legado.app.utils.IntentType
+import io.legado.app.help.IntentType
 import io.legado.app.utils.openFileUri
 import io.legado.app.utils.servicePendingIntent
 import io.legado.app.utils.toastOnUi
diff --git a/app/src/main/java/io/legado/app/utils/ContextExtensions.kt b/app/src/main/java/io/legado/app/utils/ContextExtensions.kt
index 9ecf84e99..c902805e5 100644
--- a/app/src/main/java/io/legado/app/utils/ContextExtensions.kt
+++ b/app/src/main/java/io/legado/app/utils/ContextExtensions.kt
@@ -29,6 +29,7 @@ import com.google.zxing.qrcode.decoder.ErrorCorrectionLevel
 import io.legado.app.R
 import io.legado.app.constant.AppConst
 import io.legado.app.help.IntentHelp
+import io.legado.app.help.IntentType
 import splitties.systemservices.clipboardManager
 import splitties.systemservices.connectivityManager
 import java.io.File