优化

app/src/main/java/io/legado/app/help/book/BookExtensions.kt

@@ -3,16 +3,13 @@
 package io.legado.app.help.book
 
 import android.net.Uri
-import androidx.documentfile.provider.DocumentFile
 import io.legado.app.constant.BookSourceType
 import io.legado.app.constant.BookType
 import io.legado.app.data.entities.Book
 import io.legado.app.data.entities.BookSource
 import io.legado.app.exception.NoStackTraceException
 import io.legado.app.help.config.AppConfig.defaultBookTreeUri
-import io.legado.app.utils.getFile
+import io.legado.app.utils.*
-import io.legado.app.utils.isContentScheme
-import splitties.init.appCtx
 import java.io.File
 
 
@@ -64,17 +61,8 @@ fun Book.getLocalUri(): Uri {
         //不同的设备书籍保存路径可能不一样 优先尝试寻找当前保存路径下的文件
         defaultBookTreeUri ?: return originBookUri
         val treeUri = Uri.parse(defaultBookTreeUri)
-        return if (treeUri.isContentScheme()) {
+        val treeFileDoc = FileDoc.fromUri(treeUri, true)
-            DocumentFile.fromTreeUri(appCtx, treeUri)?.run {
+        return treeFileDoc.find(originName)?.uri ?: originBookUri
-                findFile(originName)?.let {
-                    if (it.exists()) it.uri else originBookUri
-                } ?: originBookUri
-            } ?: originBookUri
-        } else {
-            val treeFile = File(treeUri.path!!)
-            val file = treeFile.getFile(originName)
-            if (file.exists()) Uri.fromFile(file) else originBookUri
-        }
     }
     throw NoStackTraceException("不是本地书籍")
 }

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

@@ -145,6 +145,10 @@ data class FileDoc(
 
     companion object {
 
+        fun fromUri(uri: Uri, isDir: Boolean, name: String = ""): FileDoc {
+            return FileDoc(name, isDir, 0, 0, uri)
+        }
+
         fun fromDocumentFile(doc: DocumentFile): FileDoc {
             return FileDoc(
                 name = doc.name ?: "",
@@ -168,6 +172,19 @@ data class FileDoc(
     }
 }
 
+fun FileDoc.list(filter: ((file: FileDoc) -> Boolean)? = null): ArrayList<FileDoc>? {
+    if (isDir) {
+        return DocumentUtils.listFiles(uri, filter)
+    }
+    return null
+}
+
+fun FileDoc.find(name: String): FileDoc? {
+    return list {
+        it.name == name
+    }?.firstOrNull()
+}
+
 @Throws(Exception::class)
 fun DocumentFile.writeText(context: Context, data: String, charset: Charset = Charsets.UTF_8) {
     uri.writeText(context, data, charset)