From b6691472bf336d42d10fedda01bbdd7e5595051e Mon Sep 17 00:00:00 2001
From: kunfei <gekunfei@live.com>
Date: Wed, 1 Jan 2020 21:18:17 +0800
Subject: [PATCH] up

---
 .../app/ui/config/WebDavConfigFragment.kt     |  3 ++
 .../java/io/legado/app/utils/DocumentUtils.kt | 31 +++++++++++++++++++
 2 files changed, 34 insertions(+)
 create mode 100644 app/src/main/java/io/legado/app/utils/DocumentUtils.kt

diff --git a/app/src/main/java/io/legado/app/ui/config/WebDavConfigFragment.kt b/app/src/main/java/io/legado/app/ui/config/WebDavConfigFragment.kt
index 88b5109f3..3cfe0af2e 100644
--- a/app/src/main/java/io/legado/app/ui/config/WebDavConfigFragment.kt
+++ b/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
@@ -167,7 +168,9 @@ class WebDavConfigFragment : PreferenceFragmentCompat(), Preference.OnPreference
         when (requestCode) {
             oldDataRequestCode -> if (resultCode == RESULT_OK) {
                 data?.data?.let {
+                    DocumentFile.fromTreeUri(requireContext(), it)?.listFiles()?.forEach {
 
+                    }
                 }
             }
         }
diff --git a/app/src/main/java/io/legado/app/utils/DocumentUtils.kt b/app/src/main/java/io/legado/app/utils/DocumentUtils.kt
new file mode 100644
index 000000000..276cfa473
--- /dev/null
+++ b/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
+    }
+
+
+}
\ No newline at end of file