背景配置自由添加

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

@@ -118,13 +118,16 @@ object ReadBookConfig {
         }
     }
 
-    fun resetDur() {
-        defaultConfigs[styleSelect].let {
-            durConfig.setBg(it.bgType(), it.bgStr())
-            durConfig.setTextColor(it.textColor())
+    fun deleteDur(): Boolean {
+        if (configList.size > 5) {
+            configList.removeAt(styleSelect)
+            if (styleSelect > 0) {
+                styleSelect -= 1
+            }
             upBg()
-            save()
+            return true
         }
+        return false
     }
 
     private fun resetAll() {

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

@@ -102,6 +102,7 @@ class BgTextConfigDialog : BaseDialogFragment(), FileChooserDialog.CallBack {
         sw_dark_status_icon.setTextColor(primaryTextColor)
         iv_import.setColorFilter(primaryTextColor)
         iv_export.setColorFilter(primaryTextColor)
+        iv_delete.setColorFilter(primaryTextColor)
         tv_bg_image.setTextColor(primaryTextColor)
     }
 
@@ -149,10 +150,6 @@ class BgTextConfigDialog : BaseDialogFragment(), FileChooserDialog.CallBack {
                 .setDialogId(BG_COLOR)
                 .show(requireActivity())
         }
-        tv_default.onClick {
-            ReadBookConfig.resetDur()
-            postEvent(EventBus.UP_CONFIG, false)
-        }
         iv_import.onClick {
             val importFormNet = "网络导入"
             val otherActions = arrayListOf(importFormNet)
@@ -175,6 +172,14 @@ class BgTextConfigDialog : BaseDialogFragment(), FileChooserDialog.CallBack {
                 title = getString(R.string.export_str)
             )
         }
+        iv_delete.onClick {
+            if (ReadBookConfig.deleteDur()) {
+                postEvent(EventBus.UP_CONFIG, true)
+                dismiss()
+            } else {
+                toast("数量以是最少,不能删除.")
+            }
+        }
     }
 
     private fun selectImage() {

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

@@ -57,23 +57,6 @@
             app:isBottomBackground="true"
             tools:ignore="HardcodedText" />
 
-        <io.legado.app.ui.widget.text.StrokeTextView
-            android:id="@+id/tv_default"
-            android:layout_width="0dp"
-            android:layout_height="wrap_content"
-            android:layout_gravity="center"
-            android:layout_marginLeft="6dp"
-            android:layout_marginRight="6dp"
-            android:layout_weight="3"
-            android:background="?attr/selectableItemBackground"
-            android:gravity="center"
-            android:padding="6dp"
-            android:singleLine="true"
-            android:text="@string/btn_default_s"
-            android:textSize="14sp"
-            app:isBottomBackground="true"
-            tools:ignore="HardcodedText" />
-
         <ImageView
             android:id="@+id/iv_import"
             android:layout_width="36dp"
@@ -98,6 +81,18 @@
             android:tooltipText="@string/export_str"
             tools:ignore="UnusedAttribute" />
 
+        <ImageView
+            android:id="@+id/iv_delete"
+            android:layout_width="36dp"
+            android:layout_height="36dp"
+            android:layout_marginLeft="6dp"
+            android:layout_marginRight="6dp"
+            android:background="?attr/selectableItemBackground"
+            android:contentDescription="@string/delete"
+            android:src="@drawable/ic_clear_all"
+            android:tooltipText="@string/delete"
+            tools:ignore="UnusedAttribute" />
+
     </LinearLayout>
 
     <TextView