feat: 优化代码

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

@@ -215,7 +215,7 @@ object ReadBookConfig {
     class Config(
         private var bgStr: String = "#EEEEEE",//白天背景
         private var bgStrNight: String = "#000000",//夜间背景
-        private var bgType: Int = 0,//白天背景类型
+        private var bgType: Int = 0,//白天背景类型 0:颜色, 1:assets图片, 2其它图片
         private var bgTypeNight: Int = 0,//夜间背景类型
         private var darkStatusIcon: Boolean = true,//白天是否暗色状态栏
         private var darkStatusIconNight: Boolean = false,//晚上是否暗色状态栏
@@ -299,7 +299,7 @@ object ReadBookConfig {
                     1 -> {
                         BitmapDrawable(
                             resources,
-                            BitmapUtils.decodeBitmap(
+                            BitmapUtils.decodeAssetsBitmap(
                                 App.INSTANCE,
                                 "bg" + File.separator + bgStr(),
                                 width,

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

@@ -12,7 +12,6 @@ import io.legado.app.R
 import io.legado.app.constant.EventBus
 import io.legado.app.constant.PreferKey
 import io.legado.app.help.BookHelp
-import io.legado.app.help.ImageLoader
 import io.legado.app.help.ReadBookConfig
 import io.legado.app.lib.dialogs.selector
 import io.legado.app.lib.theme.accentColor
@@ -219,12 +218,7 @@ class ReadStyleDialog : DialogFragment(), FontSelectDialog.CallBack {
                 4 -> bg4
                 else -> bg0
             }
-            ReadBookConfig.getConfig(i).apply {
-                when (bgType()) {
-                    2 -> ImageLoader.load(requireContext(), bgStr()).centerCrop().into(iv)
-                    else -> iv.setImageDrawable(bgDrawable(100, 150))
-                }
-            }
+            iv.setImageDrawable(ReadBookConfig.getConfig(i).bgDrawable(100, 150))
         }
     }
 

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

@@ -121,7 +121,12 @@ object BitmapUtils {
      * @throws IOException
      */
     @Throws(IOException::class)
-    fun decodeBitmap(context: Context, fileNameInAssets: String, width: Int, height: Int): Bitmap? {
+    fun decodeAssetsBitmap(
+        context: Context,
+        fileNameInAssets: String,
+        width: Int,
+        height: Int
+    ): Bitmap? {
 
         var inputStream = context.assets.open(fileNameInAssets)
         val op = BitmapFactory.Options()