up

app/src/main/java/io/legado/app/ui/config/WebDavConfigFragment.kt

@@ -6,6 +6,7 @@ import android.os.Build
 import android.os.Bundle
 import android.text.InputType
 import android.view.View
+import androidx.documentfile.provider.DocumentFile
 import androidx.preference.EditTextPreference
 import androidx.preference.ListPreference
 import androidx.preference.Preference
@@ -167,9 +168,11 @@ class WebDavConfigFragment : PreferenceFragmentCompat(), Preference.OnPreference
         when (requestCode) {
             oldDataRequestCode -> if (resultCode == RESULT_OK) {
                 data?.data?.let {
+                    DocumentFile.fromTreeUri(requireContext(), it)?.listFiles()?.forEach {
 
                     }
                 }
             }
         }
     }
+}

app/src/main/java/io/legado/app/utils/DocumentUtils.kt

@@ -0,0 +1,31 @@
+package io.legado.app.utils
+
+import android.content.Context
+import android.net.Uri
+
+object DocumentUtils {
+
+    fun readText(context: Context, uri: Uri): String? {
+        readBytes(context, uri)?.let {
+            return String(it)
+        }
+        return null
+    }
+
+    fun readBytes(context: Context, uri: Uri): ByteArray? {
+        try {
+            context.contentResolver.openInputStream(uri)?.let {
+                val len: Int = it.available()
+                val buffer = ByteArray(len)
+                it.read(buffer)
+                it.close()
+                return buffer
+            }
+        } catch (e: Exception) {
+            e.printStackTrace()
+        }
+        return null
+    }
+
+
+}