diff --git a/.idea/caches/build_file_checksums.ser b/.idea/caches/build_file_checksums.ser
index c1ca9c2..804885d 100644
Binary files a/.idea/caches/build_file_checksums.ser and b/.idea/caches/build_file_checksums.ser differ
diff --git a/app/build.gradle b/app/build.gradle
index 4a269a6..7edbfa8 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -47,8 +47,14 @@ android {
     }
 
     buildTypes {
+        debug {
+            minifyEnabled true
+            shrinkResources true
+            proguardFiles getDefaultProguardFile("proguard-android.txt"), "proguard-rules.pro"
+        }
         release {
-            minifyEnabled false
+            minifyEnabled true
+            shrinkResources true
             proguardFiles getDefaultProguardFile("proguard-android.txt"), "proguard-rules.pro"
         }
     }
@@ -74,8 +80,7 @@ dependencies {
     implementation "androidx.room:room-runtime:$room_version"
     kapt "androidx.room:room-compiler:$room_version"
     implementation "androidx.room:room-rxjava2:$room_version"
-    implementation "androidx.appcompat:appcompat:1.1.0"
-    implementation "androidx.core:core-ktx:1.1.0"
+    implementation "androidx.core:core-ktx:1.2.0"
     implementation "androidx.preference:preference:1.1.0"
     testImplementation "junit:junit:4.12"
     androidTestImplementation "androidx.test:runner:1.2.0"
diff --git a/app/proguard-rules.pro b/app/proguard-rules.pro
index 9f48823..29b892a 100644
--- a/app/proguard-rules.pro
+++ b/app/proguard-rules.pro
@@ -20,30 +20,5 @@
 # hide the original source file name.
 #-renamesourcefileattribute SourceFile
 
-# Retrofit
--dontwarn retrofit2.Platform$Java8
-# okhttp
--dontwarn okio.**
--dontwarn org.conscrypt.**
--dontwarn javax.annotation.**
-
--dontwarn org.xmlpull.v1.XmlPullParser
--dontwarn org.xmlpull.v1.XmlSerializer
--keep class org.xmlpull.v1.* {*;}
-
-# Gson
--keep class soko.ekibun.bangumi.api.**.bean.**{*;} # 自定义数据模型的bean目录
-
-#不混淆Parcelable和它的子类，还有Creator成员变量
--keep class * implements android.os.Parcelable {
-    public static final android.os.Parcelable$Creator *;
-}
-
-# custom view
--keep class soko.ekibun.bangumi.ui.view.NotifyActionProvider {*;}
--keep class soko.ekibun.bangumi.ui.view.*View {*;}
-
-# glide webp
--keep public class com.bumptech.glide.integration.webp.WebpImage { *; }
--keep public class com.bumptech.glide.integration.webp.WebpFrame { *; }
--keep public class com.bumptech.glide.integration.webp.WebpBitmapFactory { *; }
\ No newline at end of file
+-dontobfuscate
+-keep class soko.ekibun.bangumi.**{*;}
\ No newline at end of file
diff --git a/app/src/main/java/com/awarmisland/android/richedittext/bean/RichImageSpan.java b/app/src/main/java/com/awarmisland/android/richedittext/bean/RichImageSpan.java
deleted file mode 100644
index 5a19e41..0000000
--- a/app/src/main/java/com/awarmisland/android/richedittext/bean/RichImageSpan.java
+++ /dev/null
@@ -1,20 +0,0 @@
-package com.awarmisland.android.richedittext.bean;
-
-import android.content.Context;
-import android.graphics.Bitmap;
-import android.net.Uri;
-import android.text.style.ImageSpan;
-
-public class RichImageSpan extends ImageSpan {
-    private Uri mUri;
-
-    public RichImageSpan(Context context, Bitmap b, Uri uri) {
-        super(context, b);
-        mUri = uri;
-    }
-
-    @Override
-    public String getSource() {
-        return mUri.toString();
-    }
-}
\ No newline at end of file
diff --git a/app/src/main/java/soko/ekibun/bangumi/ui/topic/ReplyDialog.kt b/app/src/main/java/soko/ekibun/bangumi/ui/topic/ReplyDialog.kt
index e3dcc15..e31c3a8 100644
--- a/app/src/main/java/soko/ekibun/bangumi/ui/topic/ReplyDialog.kt
+++ b/app/src/main/java/soko/ekibun/bangumi/ui/topic/ReplyDialog.kt
@@ -8,7 +8,6 @@ import android.content.DialogInterface
 import android.content.Intent
 import android.provider.OpenableColumns
 import android.text.Spanned
-import android.text.style.ImageSpan
 import android.view.KeyEvent
 import android.view.MenuItem
 import android.view.View
@@ -31,10 +30,7 @@ import soko.ekibun.bangumi.api.bangumi.Bangumi
 import soko.ekibun.bangumi.ui.view.BaseDialog
 import soko.ekibun.bangumi.util.HtmlUtil
 import soko.ekibun.bangumi.util.ResourceUtil
-import soko.ekibun.bangumi.util.span.ClickableImageSpan
-import soko.ekibun.bangumi.util.span.ClickableUrlSpan
-import soko.ekibun.bangumi.util.span.CollapseUrlDrawable
-import soko.ekibun.bangumi.util.span.UploadDrawable
+import soko.ekibun.bangumi.util.span.*
 import java.lang.ref.WeakReference
 
 /**
@@ -196,7 +192,7 @@ class ReplyDialog : BaseDialog(R.layout.dialog_reply) {
                 drawable.url = emojiList[position].second
                 view.item_input.editableText.insert(
                     view.item_input.selectionStart,
-                    HtmlUtil.createImageSpan(ImageSpan(drawable, emojiList[position].first, ImageSpan.ALIGN_BASELINE))
+                    HtmlUtil.createImageSpan(UrlImageSpan(drawable, emojiList[position].first))
                 )
                 drawable.container = WeakReference(view.item_input)
                 drawable.loadImage()
@@ -329,7 +325,7 @@ class ReplyDialog : BaseDialog(R.layout.dialog_reply) {
                 item_input.editableText.replace(start, end, "[img]$it[/img]")
             }
         }
-        val imageSpan = ImageSpan(drawable, "", ImageSpan.ALIGN_BASELINE)
+        val imageSpan = UrlImageSpan(drawable, "")
         span = ClickableImageSpan(imageSpan, collapseImageGetter.onClick)
         item_input.editableText.insert(
             item_input.selectionStart,
diff --git a/app/src/main/java/soko/ekibun/bangumi/util/GlideUtil.kt b/app/src/main/java/soko/ekibun/bangumi/util/GlideUtil.kt
index a502ac4..7b517f4 100644
--- a/app/src/main/java/soko/ekibun/bangumi/util/GlideUtil.kt
+++ b/app/src/main/java/soko/ekibun/bangumi/util/GlideUtil.kt
@@ -1,5 +1,3 @@
-@file:Suppress("DEPRECATION")
-
 package soko.ekibun.bangumi.util
 
 import android.app.Activity
@@ -15,7 +13,7 @@ import com.bumptech.glide.RequestManager
 import com.bumptech.glide.load.model.GlideUrl
 import com.bumptech.glide.load.model.Headers
 import com.bumptech.glide.request.RequestOptions
-import com.bumptech.glide.request.target.SimpleTarget
+import com.bumptech.glide.request.target.CustomTarget
 import com.bumptech.glide.request.target.Target
 import com.bumptech.glide.request.transition.Transition
 
@@ -63,7 +61,8 @@ object GlideUtil {
                         Headers { mapOf("referer" to url, "user-agent" to HttpUtil.ua) })
                 )
             }
-        }.apply(options).into(object : SimpleTarget<Drawable>() {
+        }.apply(options).into(object : CustomTarget<Drawable>() {
+
             override fun onLoadStarted(placeholder: Drawable?) {
                 callback(TYPE_PLACEHOLDER, placeholder)
             }
@@ -75,7 +74,7 @@ object GlideUtil {
 
             override fun onLoadCleared(placeholder: Drawable?) {
                 if (circularProgressDrawable.isRunning) circularProgressDrawable.stop()
-                callback(TYPE_PLACEHOLDER, null)
+                ProgressAppGlideModule.forget(url)
             }
 
             override fun onResourceReady(resource: Drawable, transition: Transition<in Drawable>?) {
@@ -87,7 +86,6 @@ object GlideUtil {
                 ProgressAppGlideModule.forget(url)
             }
         })
-
     }
 
     fun with(context: Context): RequestManager? {
diff --git a/app/src/main/java/soko/ekibun/bangumi/util/HtmlUtil.kt b/app/src/main/java/soko/ekibun/bangumi/util/HtmlUtil.kt
index a04645f..e7f5ba3 100644
--- a/app/src/main/java/soko/ekibun/bangumi/util/HtmlUtil.kt
+++ b/app/src/main/java/soko/ekibun/bangumi/util/HtmlUtil.kt
@@ -70,13 +70,15 @@ object HtmlUtil {
     fun attachToTextView(span: Spanned, textView: TextView) {
         // 结束之前的请求
         (textView.text as? Spanned)?.let { text ->
-            text.getSpans(0, text.length, ImageSpan::class.java).forEach {
+            text.getSpans(0, text.length, UrlImageSpan::class.java).filterNot {
+                span.getSpanFlags(it) == 0
+            }.forEach {
                 (it.drawable as? UrlDrawable)?.cancel()
             }
         }
         // 更新引用
         val weakRef = WeakReference(textView)
-        span.getSpans(0, span.length, ImageSpan::class.java).forEach { imageSpan ->
+        span.getSpans(0, span.length, UrlImageSpan::class.java).forEach { imageSpan ->
             (imageSpan.drawable as? UrlDrawable)?.let {
                 it.container = weakRef
                 it.loadImage()
@@ -124,14 +126,13 @@ object HtmlUtil {
                                 val sources = Bangumi.parseUrl(src)
                                 val alt = node.attr("alt")
                                 val isSmile = node.hasAttr("smileid")
-                                val imageSpan = ImageSpan(
+                                val imageSpan = UrlImageSpan(
                                     imageGetter.getDrawable(sources),
-                                    if (isSmile) alt else src,
-                                    ImageSpan.ALIGN_BASELINE
+                                    if (isSmile) alt else src
                                 )
                                 createImageSpan(imageSpan).also {
                                     if (!isSmile) {
-                                        imageGetter.drawables.add(sources)
+                                        imageGetter.drawables.add(imageSpan.url)
                                         setSpan(
                                             ClickableImageSpan(imageSpan, imageGetter.onClick),
                                             it, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE
@@ -149,7 +150,7 @@ object HtmlUtil {
         return span
     }
 
-    fun createImageSpan(imageSpan: ImageSpan): SpannableStringBuilder {
+    fun createImageSpan(imageSpan: UrlImageSpan): SpannableStringBuilder {
         return SpannableStringBuilder("").also {
             setSpan(imageSpan, it, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE)
         }
@@ -204,10 +205,10 @@ object HtmlUtil {
     ) {
         val drawables = ArrayList<String>()
 
-        open val onClick: (View, ImageSpan) -> Unit = { itemView, span ->
+        open val onClick: (View, UrlImageSpan) -> Unit = { itemView, span ->
             PhotoPagerAdapter.showWindow(
                 itemView, drawables,
-                index = drawables.indexOf(span.source ?: "")
+                index = drawables.indexOf(span.url)
             )
         }
 
diff --git a/app/src/main/java/soko/ekibun/bangumi/util/SpanFormatter.kt b/app/src/main/java/soko/ekibun/bangumi/util/SpanFormatter.kt
index ef8591f..3aa9036 100644
--- a/app/src/main/java/soko/ekibun/bangumi/util/SpanFormatter.kt
+++ b/app/src/main/java/soko/ekibun/bangumi/util/SpanFormatter.kt
@@ -6,10 +6,7 @@ import android.text.TextUtils
 import android.text.style.*
 import soko.ekibun.bangumi.api.bangumi.Bangumi
 import soko.ekibun.bangumi.ui.topic.ReplyDialog
-import soko.ekibun.bangumi.util.span.ClickableUrlSpan
-import soko.ekibun.bangumi.util.span.CodeLineSpan
-import soko.ekibun.bangumi.util.span.MaskSpan
-import soko.ekibun.bangumi.util.span.QuoteLineSpan
+import soko.ekibun.bangumi.util.span.*
 import kotlin.math.roundToInt
 
 abstract class SpanFormatter {
@@ -73,8 +70,8 @@ abstract class SpanFormatter {
                 is ForegroundColorSpan -> return "${
                 String.format("[color=#%06X]", 0xFFFFFF and span.foregroundColor)}${inner()}[/color]"
                 is MaskSpan -> return "[mask]${inner()}[/mask]"
-                is ImageSpan -> return if (span.source?.startsWith("(") == true) span.source ?: ""
-                else "[img]${span.source}[/img]"
+                is UrlImageSpan -> return if (span.url.startsWith("(")) span.url
+                else "[img]${span.url}[/img]"
             }
             return inner()
         }
diff --git a/app/src/main/java/soko/ekibun/bangumi/util/span/ClickableImageSpan.kt b/app/src/main/java/soko/ekibun/bangumi/util/span/ClickableImageSpan.kt
index a675a05..db90c8b 100644
--- a/app/src/main/java/soko/ekibun/bangumi/util/span/ClickableImageSpan.kt
+++ b/app/src/main/java/soko/ekibun/bangumi/util/span/ClickableImageSpan.kt
@@ -1,7 +1,6 @@
 package soko.ekibun.bangumi.util.span
 
 import android.text.style.ClickableSpan
-import android.text.style.ImageSpan
 import android.util.Log
 import android.view.View
 
@@ -9,11 +8,11 @@ import android.view.View
  *
  */
 class ClickableImageSpan(
-    var image: ImageSpan,
-    private val onClick: (View, ImageSpan) -> Unit
+    var image: UrlImageSpan,
+    private val onClick: (View, UrlImageSpan) -> Unit
 ) : ClickableSpan() {
     override fun onClick(widget: View) {
-        Log.v("click", this.toString())
+        Log.v("click", image.drawable.toString())
         val drawable = image.drawable
         if (drawable is UrlDrawable) {
             if (drawable.error == true) drawable.loadImage()
diff --git a/app/src/main/java/soko/ekibun/bangumi/util/span/CollapseUrlDrawable.kt b/app/src/main/java/soko/ekibun/bangumi/util/span/CollapseUrlDrawable.kt
index db57bf0..27930ed 100644
--- a/app/src/main/java/soko/ekibun/bangumi/util/span/CollapseUrlDrawable.kt
+++ b/app/src/main/java/soko/ekibun/bangumi/util/span/CollapseUrlDrawable.kt
@@ -3,8 +3,7 @@ package soko.ekibun.bangumi.util.span
 import android.graphics.*
 import android.graphics.drawable.Animatable
 import android.graphics.drawable.Drawable
-import android.text.style.ImageSpan
-import android.util.Log
+import android.text.Spannable
 import android.util.Size
 import android.view.View
 import android.widget.TextView
@@ -21,45 +20,41 @@ open class CollapseUrlDrawable(
     sizeCache: HashMap<String, Size>
 ) : UrlDrawable(wrapWidth, sizeCache) {
 
+    override var drawable: Drawable? = null
+        set(drawable) {
+            (field as? Animatable)?.stop()
+            field?.callback = null
+            field = drawable
+            field?.callback = drawableCallback
+            (drawable as? Animatable)?.start()
+            val drawableBounds = drawable?.bounds ?: bounds
+            setBounds(0, 0, drawableBounds.width(), Math.min(drawableBounds.height(), 250))
+            mBuffer = Bitmap.createBitmap(bounds.width(), bounds.height(), Bitmap.Config.ARGB_8888)
+            updateBuffer()
+
+            container?.get()?.let {
+                val text = (it.text as? Spannable) ?: return@let
+                text.getSpans(0, text.length, UrlImageSpan::class.java)?.filter { span ->
+                    span.drawable == this
+                }?.forEach { span ->
+                    span.url = url ?: ""
+                    val start = text.getSpanStart(span)
+                    val end = text.getSpanEnd(span)
+                    val flags = text.getSpanFlags(span)
+                    text.removeSpan(span)
+                    text.setSpan(span, start, end, flags)
+                }
+                it.invalidate()
+            }
+        }
+
     override fun update(drawable: Drawable) {
         val size = {
             val width = wrapWidth(if (error == false) drawable.intrinsicWidth.toFloat() else -1f)
             Size(width.toInt(), (drawable.intrinsicHeight * width / drawable.intrinsicWidth).toInt())
         }()
-        Log.v("update", "$drawable size: $size")
-        (this.drawable as? Animatable)?.stop()
-        this.drawable?.callback = null
+        drawable.setBounds(0, 0, size.width, size.height)
         this.drawable = drawable
-        this.drawable?.callback = this.drawableCallback
-        (drawable as? Animatable)?.start()
-        setBounds(0, 0, size.width, Math.min(size.height, 250))
-        mBuffer = Bitmap.createBitmap(bounds.width(), bounds.height(), Bitmap.Config.ARGB_8888)
-        this.drawable?.setBounds(0, 0, size.width, size.height)
-        updateBuffer()
-
-        container?.get()?.let {
-            it.editableText.getSpans(0, it.editableText.length, ClickableImageSpan::class.java).filter { span ->
-                span.image.drawable == this
-            }.forEach { span ->
-                val start = it.editableText.getSpanStart(span)
-                val end = it.editableText.getSpanEnd(span)
-                val flags = it.editableText.getSpanFlags(span)
-
-                it.editableText.removeSpan(span.image)
-                span.image = ImageSpan(this, url ?: "", ImageSpan.ALIGN_BASELINE)
-                it.editableText.setSpan(span.image, start, end, flags)
-            }
-            it.editableText.getSpans(0, it.editableText.length, ImageSpan::class.java).filter { span ->
-                span.drawable == this
-            }.forEach { span ->
-                val start = it.editableText.getSpanStart(span)
-                val end = it.editableText.getSpanEnd(span)
-                val flags = it.editableText.getSpanFlags(span)
-                it.editableText.removeSpan(span)
-                it.editableText.setSpan(span, start, end, flags)
-            }
-            it.invalidate()
-        }
     }
 
     private val gradientPaint by lazy {
@@ -87,8 +82,8 @@ open class CollapseUrlDrawable(
     class CollapseImageGetter(container: TextView) : HtmlUtil.ImageGetter(wrapWidth = {
         Math.min(container.width.toFloat(), Math.max(container.textSize, it))
     }) {
-        override val onClick: (View, ImageSpan) -> Unit = { itemView, span ->
-            Toast.makeText(itemView.context, span.source, Toast.LENGTH_LONG).show()
+        override val onClick: (View, UrlImageSpan) -> Unit = { itemView, span ->
+            Toast.makeText(itemView.context, span.url, Toast.LENGTH_LONG).show()
         }
 
         override fun createDrawable(): UrlDrawable {
diff --git a/app/src/main/java/soko/ekibun/bangumi/util/span/TextViewDrawable.kt b/app/src/main/java/soko/ekibun/bangumi/util/span/TextViewDrawable.kt
new file mode 100644
index 0000000..b439024
--- /dev/null
+++ b/app/src/main/java/soko/ekibun/bangumi/util/span/TextViewDrawable.kt
@@ -0,0 +1,69 @@
+package soko.ekibun.bangumi.util.span
+
+import android.graphics.*
+import android.graphics.drawable.Animatable
+import android.graphics.drawable.AnimationDrawable
+import android.graphics.drawable.Drawable
+import android.text.Spannable
+import android.widget.TextView
+import java.lang.ref.WeakReference
+
+open class TextViewDrawable : AnimationDrawable() {
+    var container: WeakReference<TextView>? = null
+
+    open var drawable: Drawable? = null
+        set(drawable) {
+            (field as? Animatable)?.stop()
+            field?.callback = null
+            field = drawable
+            if (drawable == null) return
+            drawable.callback = drawableCallback
+            (drawable as? Animatable)?.start()
+            bounds = drawable.bounds
+            mBuffer = Bitmap.createBitmap(bounds.width(), bounds.height(), Bitmap.Config.ARGB_8888)
+            updateBuffer()
+
+            container?.get()?.let {
+                val text = (it.text as? Spannable) ?: return@let
+                text.getSpans(0, text.length, UrlImageSpan::class.java)?.filter { span ->
+                    span.drawable == this
+                }?.forEach { span ->
+                    val start = text.getSpanStart(span)
+                    val end = text.getSpanEnd(span)
+                    val flags = text.getSpanFlags(span)
+                    text.removeSpan(span)
+                    text.setSpan(span, start, end, flags)
+                }
+                it.invalidate()
+            }
+        }
+
+    internal var mBuffer: Bitmap = Bitmap.createBitmap(1, 1, Bitmap.Config.ARGB_8888)
+    private val mPaint = Paint(Paint.FILTER_BITMAP_FLAG or Paint.DITHER_FLAG)
+
+    open fun updateBuffer() {
+        val bufferCanvas = Canvas(mBuffer)
+        bufferCanvas.drawColor(Color.TRANSPARENT, PorterDuff.Mode.CLEAR)
+        drawable?.draw(bufferCanvas)
+        invalidateSelf()
+    }
+
+    internal val drawableCallback = object : Callback {
+        override fun invalidateDrawable(who: Drawable) {
+            updateBuffer()
+            container?.get()?.invalidate()
+        }
+
+        override fun scheduleDrawable(who: Drawable, what: Runnable, `when`: Long) {
+            container?.get()?.postDelayed(what, `when`)
+        }
+
+        override fun unscheduleDrawable(who: Drawable, what: Runnable) {
+            container?.get()?.removeCallbacks(what)
+        }
+    }
+
+    override fun draw(canvas: Canvas) {
+        canvas.drawBitmap(mBuffer, bounds, bounds, mPaint)
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/java/soko/ekibun/bangumi/util/span/UrlDrawable.kt b/app/src/main/java/soko/ekibun/bangumi/util/span/UrlDrawable.kt
index 06fcd03..ce26c6c 100644
--- a/app/src/main/java/soko/ekibun/bangumi/util/span/UrlDrawable.kt
+++ b/app/src/main/java/soko/ekibun/bangumi/util/span/UrlDrawable.kt
@@ -1,21 +1,15 @@
 package soko.ekibun.bangumi.util.span
 
-import android.graphics.*
-import android.graphics.drawable.Animatable
-import android.graphics.drawable.AnimationDrawable
 import android.graphics.drawable.Drawable
 import android.net.Uri
-import android.text.Spannable
-import android.text.style.ImageSpan
+import android.util.Log
 import android.util.Size
-import android.widget.TextView
 import androidx.swiperefreshlayout.widget.CircularProgressDrawable
 import com.bumptech.glide.request.RequestOptions
 import com.bumptech.glide.request.target.Target
 import soko.ekibun.bangumi.R
 import soko.ekibun.bangumi.util.GlideUtil
 import soko.ekibun.bangumi.util.ResourceUtil
-import java.lang.ref.WeakReference
 
 /**
  * url图片Drawable
@@ -24,16 +18,15 @@ import java.lang.ref.WeakReference
 open class UrlDrawable(
     val wrapWidth: (Float) -> Float,
     val sizeCache: HashMap<String, Size>
-) : AnimationDrawable() {
-    var container: WeakReference<TextView>? = null
+) : TextViewDrawable() {
 
     private var target: Target<Drawable>? = null
     fun cancel() {
         container?.get()?.let { GlideUtil.with(it) }?.clear(target)
+        error = null
+        drawable = null
     }
 
-    internal var drawable: Drawable? = null
-
     /**
      * 加载状态
      * - true: 加载失败
@@ -44,9 +37,6 @@ open class UrlDrawable(
     var url: String? = null
     var uri: Uri? = null
 
-    internal var mBuffer: Bitmap = Bitmap.createBitmap(1, 1, Bitmap.Config.ARGB_8888)
-    internal val mPaint = Paint(Paint.FILTER_BITMAP_FLAG or Paint.DITHER_FLAG)
-
     /**
      * 更新Drawable
      */
@@ -57,35 +47,15 @@ open class UrlDrawable(
             if (error == false) url?.let { sizeCache[it] = size }
             size
         }()
-        (this.drawable as? Animatable)?.stop()
-        this.drawable?.callback = null
+        drawable.setBounds(0, 0, size.width, size.height)
         this.drawable = drawable
-        this.drawable?.callback = drawableCallback
-        (drawable as? Animatable)?.start()
-        setBounds(0, 0, size.width, size.height)
-        mBuffer = Bitmap.createBitmap(bounds.width(), bounds.height(), Bitmap.Config.ARGB_8888)
-        this.drawable?.bounds = bounds
-        updateBuffer()
-
-        container?.get()?.let {
-            val text = (it.text as? Spannable) ?: return@let
-            text.getSpans(0, text.length, ImageSpan::class.java)?.filter { span ->
-                span.drawable == this
-            }?.forEach { span ->
-                val start = text.getSpanStart(span)
-                val end = text.getSpanEnd(span)
-                val flags = text.getSpanFlags(span)
-                text.removeSpan(span)
-                text.setSpan(span, start, end, flags)
-            }
-            it.invalidate()
-        }
     }
 
     /**
      * 加载图片
      */
     open fun loadImage() {
+        if (error == false) return // 加载完成不再加载
         val url = this.url ?: return
         val view = container?.get()
         view?.post {
@@ -107,6 +77,7 @@ open class UrlDrawable(
                 circularProgressDrawable,
                 uri
             ) { type, drawable ->
+                Log.v("Type", type.toString())
                 error = when (type) {
                     GlideUtil.TYPE_RESOURCE -> false
                     GlideUtil.TYPE_ERROR -> true
@@ -116,33 +87,4 @@ open class UrlDrawable(
             }
         }
     }
-
-    /**
-     * 更新缓存
-     */
-    open fun updateBuffer() {
-        val bufferCanvas = Canvas(mBuffer)
-        bufferCanvas.drawColor(Color.TRANSPARENT, PorterDuff.Mode.CLEAR)
-        drawable?.draw(bufferCanvas)
-        invalidateSelf()
-    }
-
-    internal val drawableCallback = object : Callback {
-        override fun invalidateDrawable(who: Drawable) {
-            updateBuffer()
-            container?.get()?.invalidate()
-        }
-
-        override fun scheduleDrawable(who: Drawable, what: Runnable, `when`: Long) {
-            container?.get()?.postDelayed(what, `when`)
-        }
-
-        override fun unscheduleDrawable(who: Drawable, what: Runnable) {
-            container?.get()?.removeCallbacks(what)
-        }
-    }
-
-    override fun draw(canvas: Canvas) {
-        canvas.drawBitmap(mBuffer, bounds, bounds, mPaint)
-    }
 }
\ No newline at end of file
diff --git a/app/src/main/java/soko/ekibun/bangumi/util/span/UrlImageSpan.kt b/app/src/main/java/soko/ekibun/bangumi/util/span/UrlImageSpan.kt
new file mode 100644
index 0000000..5ce2302
--- /dev/null
+++ b/app/src/main/java/soko/ekibun/bangumi/util/span/UrlImageSpan.kt
@@ -0,0 +1,9 @@
+package soko.ekibun.bangumi.util.span
+
+import android.text.style.ImageSpan
+
+class UrlImageSpan(drawable: UrlDrawable, var url: String = "") : ImageSpan(drawable, "", ALIGN_BASELINE) {
+
+    @Deprecated("use url instead", ReplaceWith("url"))
+    override fun getSource(): String? = url
+}
\ No newline at end of file
diff --git a/app/src/main/res/drawable-xhdpi/empty.png b/app/src/main/res/drawable-xhdpi/empty.png
deleted file mode 100644
index 7b580a7..0000000
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diff --git a/app/src/main/res/drawable-xhdpi/empty.webp b/app/src/main/res/drawable-xhdpi/empty.webp
new file mode 100644
index 0000000..74e91f0
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diff --git a/app/src/main/res/drawable-xhdpi/err_401.png b/app/src/main/res/drawable-xhdpi/err_401.png
deleted file mode 100644
index 8ac672d..0000000
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diff --git a/app/src/main/res/drawable-xhdpi/err_401.webp b/app/src/main/res/drawable-xhdpi/err_401.webp
new file mode 100644
index 0000000..bd76ad5
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diff --git a/app/src/main/res/drawable-xhdpi/err_404.png b/app/src/main/res/drawable-xhdpi/err_404.png
deleted file mode 100644
index 3643494..0000000
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diff --git a/app/src/main/res/drawable-xhdpi/err_404.webp b/app/src/main/res/drawable-xhdpi/err_404.webp
new file mode 100644
index 0000000..1078c04
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diff --git a/app/src/main/res/drawable-xhdpi/welcome.png b/app/src/main/res/drawable-xhdpi/welcome.png
deleted file mode 100644
index 6ba3c27..0000000
Binary files a/app/src/main/res/drawable-xhdpi/welcome.png and /dev/null differ
diff --git a/app/src/main/res/drawable-xhdpi/welcome.webp b/app/src/main/res/drawable-xhdpi/welcome.webp
new file mode 100644
index 0000000..6f87ce8
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