修复webDav连接不上时webDav界面无响应的bug

app/src/main/java/io/legado/app/ui/book/read/ReadBookActivity.kt

@@ -249,7 +249,11 @@ class ReadBookActivity : BaseReadBookActivity(),
                     }
                 }
             }
-            menu.findItem(R.id.menu_get_progress)?.isVisible = AppWebDav.isOk
+            launch {
+                menu.findItem(R.id.menu_get_progress)?.isVisible = withContext(IO) {
+                    AppWebDav.isOk
+                }
+            }
         }
     }
 
@@ -1059,7 +1063,7 @@ class ReadBookActivity : BaseReadBookActivity(),
     private fun startBackupJob() {
         backupJob?.cancel()
         backupJob = launch {
-            delay(120000)
+            delay(300000)
             withContext(IO) {
                 ReadBook.book?.let {
                     AppWebDav.uploadBookProgress(it)

app/src/main/res/menu/book_read.xml

@@ -62,6 +62,7 @@
     <item
         android:id="@+id/menu_get_progress"
         android:title="@string/get_book_progress"
+        android:visible="false"
         app:showAsAction="never" />
 
     <item