diff --git a/VisualNovel/app/src/main/java/com/remax/visualnovel/ui/chat/setting/customui/expandableSelector/ExpandAiModelSelectView.kt b/VisualNovel/app/src/main/java/com/remax/visualnovel/ui/chat/setting/customui/expandableSelector/ExpandAiModelSelectView.kt
index c3f0b42..22986fd 100644
--- a/VisualNovel/app/src/main/java/com/remax/visualnovel/ui/chat/setting/customui/expandableSelector/ExpandAiModelSelectView.kt
+++ b/VisualNovel/app/src/main/java/com/remax/visualnovel/ui/chat/setting/customui/expandableSelector/ExpandAiModelSelectView.kt
@@ -1,7 +1,6 @@
 package com.remax.visualnovel.ui.chat.setting.customui.expandableSelector
 
 import android.animation.Animator
-import android.animation.AnimatorListenerAdapter
 import android.animation.ObjectAnimator
 import android.animation.ValueAnimator
 import android.content.Context
@@ -21,7 +20,7 @@ class ExpandAiModelSelectView @JvmOverloads constructor(
     context: Context,
     attrs: AttributeSet? = null,
     defStyleAttr: Int = 0
-) : android.widget.LinearLayout(context, attrs, defStyleAttr) {
+) : LinearLayout(context, attrs, defStyleAttr) {
 
     private lateinit var mBinding: LayoutExpandSelectViewBinding
 
diff --git a/VisualNovel/app/src/main/java/com/remax/visualnovel/ui/chat/setting/customui/expandableSelector/ExpandBackgroundSubView.kt b/VisualNovel/app/src/main/java/com/remax/visualnovel/ui/chat/setting/customui/expandableSelector/ExpandBackgroundSubView.kt
index 9bc3f71..3bf2948 100644
--- a/VisualNovel/app/src/main/java/com/remax/visualnovel/ui/chat/setting/customui/expandableSelector/ExpandBackgroundSubView.kt
+++ b/VisualNovel/app/src/main/java/com/remax/visualnovel/ui/chat/setting/customui/expandableSelector/ExpandBackgroundSubView.kt
@@ -76,9 +76,13 @@ class ExpandBackgroundSubView @JvmOverloads constructor(
                 }
 
                 onClick(R.id.iv_del) {
-                    // TODO - request delete method
                     val chatBackground = getModel<ChatBackgroundBase.ChatBackground>()
-                    //itemsRv.bindingAdapter.
+                    val delItemIndex = items.indexOf(chatBackground)
+                    items.remove(chatBackground)
+                    if (delItemIndex >= 0) {
+                        itemsRv.bindingAdapter.models = items
+                        itemsRv.bindingAdapter.notifyItemRemoved(delItemIndex)
+                    }
                 }
 
 
diff --git a/VisualNovel/app/src/main/java/com/remax/visualnovel/ui/chat/setting/customui/expandableSelector/ExpandSoundSubView.kt b/VisualNovel/app/src/main/java/com/remax/visualnovel/ui/chat/setting/customui/expandableSelector/ExpandSoundSubView.kt
index 8bbfd8c..7e8d679 100644
--- a/VisualNovel/app/src/main/java/com/remax/visualnovel/ui/chat/setting/customui/expandableSelector/ExpandSoundSubView.kt
+++ b/VisualNovel/app/src/main/java/com/remax/visualnovel/ui/chat/setting/customui/expandableSelector/ExpandSoundSubView.kt
@@ -3,7 +3,6 @@ package com.remax.visualnovel.ui.chat.setting.customui.expandableSelector
 import android.content.Context
 import android.util.AttributeSet
 import android.view.LayoutInflater
-import androidx.lifecycle.LifecycleOwner
 import androidx.recyclerview.widget.RecyclerView
 import com.drake.brv.annotaion.DividerOrientation
 import com.drake.brv.utils.bindingAdapter