优化

app/src/main/java/io/legado/app/data/dao/BookDao.kt

@@ -88,7 +88,7 @@ interface BookDao {
     @Query("select 1 from books where bookUrl = :bookUrl")
     fun has(bookUrl: String): Boolean?
 
-    @Query("select 1 from books where bookUrl like '%' || :fileName")
+    @Query("select 1 from books where originName = :fileName")
     fun hasFile(fileName: String): Boolean?
 
     @Insert(onConflict = OnConflictStrategy.REPLACE)

app/src/main/java/io/legado/app/model/localBook/LocalBook.kt

@@ -18,7 +18,6 @@ import io.legado.app.model.analyzeRule.AnalyzeUrl
 import io.legado.app.utils.*
 import splitties.init.appCtx
 import java.io.*
-import java.net.URLEncoder
 import java.util.regex.Pattern
 
 /**
@@ -275,7 +274,6 @@ object LocalBook {
         fileName: String
     ): Boolean {
         return appDb.bookDao.hasFile(fileName) == true
-                || appDb.bookDao.hasFile(URLEncoder.encode(fileName, "UTF-8")) == true
     }
 
     //文件类书源 合并在线书籍信息 在线 > 本地

app/src/main/java/io/legado/app/ui/book/local/ImportBookActivity.kt

@@ -206,6 +206,7 @@ class ImportBookActivity : VMBaseActivity<ActivityImportBookBinding, ImportBookV
 
     @Synchronized
     private fun upPath() {
+        binding.tvGoBack.isEnabled = viewModel.subDocs.isNotEmpty()
         viewModel.rootDoc?.let {
             scanDocJob?.cancel()
             upDocs(it)

app/src/main/java/io/legado/app/ui/book/remote/RemoteBook.kt

@@ -6,7 +6,7 @@ data class RemoteBook(
     val size: Long,
     val contentType: String,
     val lastModify: Long,
-    var isOnBookShelf: Boolean
+    var isOnBookShelf: Boolean = false
 ) {
 
     val isDir by lazy {

app/src/main/java/io/legado/app/ui/book/remote/RemoteBookActivity.kt

@@ -98,6 +98,7 @@ class RemoteBookActivity : VMBaseActivity<ActivityImportBookBinding, RemoteBookV
     }
 
     private fun upPath() {
+        binding.tvGoBack.isEnabled = viewModel.dirList.isNotEmpty()
         var path = "books" + File.separator
         viewModel.dirList.forEach {
             path = path + it.filename + File.separator

app/src/main/java/io/legado/app/ui/book/remote/manager/RemoteBookWebDav.kt

@@ -47,7 +47,7 @@ object RemoteBookWebDav : RemoteBookManager() {
                     remoteBooks.add(
                         RemoteBook(
                             webDavFile.displayName, webDavFile.path, webDavFile.size,
-                            "folder", webDavFile.lastModify, false
+                            "folder", webDavFile.lastModify
                         )
                     )
                 } else {

app/src/main/res/layout/activity_import_book.xml

@@ -16,24 +16,24 @@
         android:id="@+id/lay_top"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
-        app:layout_constraintTop_toBottomOf="@id/titleBar"
         android:background="@color/background"
-        android:minHeight="36dp"
-        android:padding="8dp"
-        android:gravity="center_vertical"
         android:elevation="1dp"
-        android:orientation="horizontal">
+        android:gravity="center_vertical"
+        android:minHeight="36dp"
+        android:orientation="horizontal"
+        android:padding="8dp"
+        app:layout_constraintTop_toBottomOf="@id/titleBar">
 
         <TextView
             android:id="@+id/tv_path"
             android:layout_width="0dp"
             android:layout_height="wrap_content"
             android:layout_weight="1"
+            android:focusable="true"
             android:gravity="center_vertical"
             android:singleLine="true"
             android:textColor="@color/secondaryText"
             android:textSize="13sp"
-            android:focusable="true"
             tools:text="/" />
 
         <io.legado.app.ui.widget.text.StrokeTextView
@@ -41,14 +41,14 @@
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
             android:layout_gravity="center"
+            android:layout_margin="4dp"
             android:gravity="center"
             android:paddingLeft="16dp"
             android:paddingRight="16dp"
-            android:layout_margin="4dp"
-            app:cornerRadius="5dp"
             android:text="@string/go_back"
             android:textFontWeight="800"
             android:textSize="14sp"
+            app:cornerRadius="5dp"
             tools:ignore="UnusedAttribute" />
     </LinearLayout>
 
@@ -62,8 +62,8 @@
         android:layout_width="match_parent"
         android:layout_height="0dp"
         android:layout_weight="1"
-        app:layout_constraintTop_toBottomOf="@id/refresh_progress_bar"
-        app:layout_constraintBottom_toTopOf="@id/select_action_bar">
+        app:layout_constraintBottom_toTopOf="@id/select_action_bar"
+        app:layout_constraintTop_toBottomOf="@id/refresh_progress_bar">
 
         <io.legado.app.ui.widget.recycler.scroller.FastScrollRecyclerView
             android:id="@+id/recycler_view"
@@ -75,11 +75,11 @@
             android:id="@+id/tv_empty_msg"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
+            android:layout_gravity="center"
             android:layout_margin="16dp"
             android:gravity="center"
-            android:layout_gravity="center"
-            android:visibility="gone"
             android:text="@string/empty_msg_import_book"
+            android:visibility="gone"
             tools:text="TextView" />
 
     </FrameLayout>