优化

app/src/main/java/io/legado/app/help/ImageLoader.kt

@@ -43,6 +43,19 @@ object ImageLoader {
         }
     }
 
+    fun loadFile(context: Context, path: String?): RequestBuilder<File> {
+        return when {
+            path.isNullOrEmpty() -> Glide.with(context).asFile().load(path)
+            path.isAbsUrl() -> Glide.with(context).asFile().load(AnalyzeUrl(path).getGlideUrl())
+            path.isContentScheme() -> Glide.with(context).asFile().load(Uri.parse(path))
+            else -> kotlin.runCatching {
+                Glide.with(context).asFile().load(File(path))
+            }.getOrElse {
+                Glide.with(context).asFile().load(path)
+            }
+        }
+    }
+
     fun load(context: Context, @DrawableRes resId: Int?): RequestBuilder<Drawable> {
         return Glide.with(context).load(resId)
     }

app/src/main/java/io/legado/app/web/HttpServer.kt

@@ -1,13 +1,17 @@
 package io.legado.app.web
 
+import android.graphics.Bitmap
 import com.google.gson.Gson
 import fi.iki.elonen.NanoHTTPD
 import io.legado.app.api.ReturnData
 import io.legado.app.api.controller.BookController
 import io.legado.app.api.controller.SourceController
 import io.legado.app.web.utils.AssetsWeb
+import java.io.ByteArrayInputStream
+import java.io.ByteArrayOutputStream
 import java.util.*
 
+
 class HttpServer(port: Int) : NanoHTTPD(port) {
     private val assetsWeb = AssetsWeb("web")
 
@@ -63,7 +67,20 @@ class HttpServer(port: Int) : NanoHTTPD(port) {
                 return assetsWeb.getResponse(uri)
             }
 
-            val response = newFixedLengthResponse(Gson().toJson(returnData))
+            val response = if (returnData.data is Bitmap) {
+                val outputStream = ByteArrayOutputStream()
+                (returnData.data as Bitmap).compress(Bitmap.CompressFormat.PNG, 100, outputStream)
+                val byteArray = outputStream.toByteArray()
+                val inputStream = ByteArrayInputStream(byteArray)
+                newFixedLengthResponse(
+                    Response.Status.OK,
+                    "image/png",
+                    inputStream,
+                    byteArray.size.toLong()
+                )
+            } else {
+                newFixedLengthResponse(Gson().toJson(returnData))
+            }
             response.addHeader("Access-Control-Allow-Methods", "GET, POST")
             response.addHeader("Access-Control-Allow-Origin", session.headers["origin"])
             return response