diff --git a/README.md b/README.md
index deff2c7..4b7790f 100644
--- a/README.md
+++ b/README.md
@@ -74,6 +74,7 @@ dependencies {
 | [Longan](https://github.com/DylanCaiCoding/Longan)           | Probably the best Kotlin utils library for Android.  |
 | [ViewBindingKTX](https://github.com/DylanCaiCoding/ViewBindingKTX) | The most comprehensive utils of ViewBinding.                 |
 | [MMKV-KTX](https://github.com/DylanCaiCoding/MMKV-KTX)       | Use MMKV with property delegates.                                      |
+| [MultiBaseUrls](https://github.com/DylanCaiCoding/MultiBaseUrls) | Use annotation to allow Retrofit to support multiple baseUrl and dynamically change baseUrl |
 | [Tracker](https://github.com/DylanCaiCoding/Tracker)       | A lightweight tracking framework based on the tracking idea of Buzzvideo.|
 
 ## Thanks
diff --git a/README_ZH.md b/README_ZH.md
index 372a99d..94bc0b6 100644
--- a/README_ZH.md
+++ b/README_ZH.md
@@ -75,6 +75,7 @@ dependencies {
 | [Longan](https://github.com/DylanCaiCoding/Longan)           | 可能是最好用的 Kotlin 工具库                  |
 | [ViewBindingKTX](https://github.com/DylanCaiCoding/ViewBindingKTX) | 最全面的 ViewBinding 工具                      |
 | [MMKV-KTX](https://github.com/DylanCaiCoding/MMKV-KTX)       | 最灵活易用的 MMKV 工具                              |
+| [MultiBaseUrls](https://github.com/DylanCaiCoding/MultiBaseUrls) | 用注解让 Retrofit 同时支持多个 baseUrl 以及动态改变 baseUrl |
 | [Tracker](https://github.com/DylanCaiCoding/Tracker)         | 基于西瓜视频的责任链埋点思路实现的轻量级埋点框架          |
 
 ## 感谢
diff --git a/sample-kotlin/src/main/java/com/dylanc/loadingstateview/sample/kotlin/delegate/FadeAnimatable.kt b/sample-kotlin/src/main/java/com/dylanc/loadingstateview/sample/kotlin/delegate/FadeAnimatable.kt
index a475a64..bb52b5f 100644
--- a/sample-kotlin/src/main/java/com/dylanc/loadingstateview/sample/kotlin/delegate/FadeAnimatable.kt
+++ b/sample-kotlin/src/main/java/com/dylanc/loadingstateview/sample/kotlin/delegate/FadeAnimatable.kt
@@ -7,25 +7,19 @@ import com.dylanc.loadingstateview.ViewType
 /**
  * @author Dylan Cai
  */
-class FadeAnimatable @JvmOverloads constructor(
-  private val duration: Long = DEFAULT_DURATION
-) : LoadingStateView.Animatable {
+class FadeAnimatable(private val duration: Long = 600) : LoadingStateView.Animatable {
   override fun toggleViewsAnimation(showView: View, hideView: View, showViewType: Any, hideViewType: Any) {
-    showView.alpha = 0f
-    showView.visibility = View.VISIBLE
-    showView.animate().alpha(1f).setDuration(duration)
-
     if (showViewType === ViewType.LOADING && hideViewType === ViewType.CONTENT) {
+      showView.visibility = View.VISIBLE
       hideView.visibility = View.GONE
     } else {
+      showView.alpha = 0f
+      showView.visibility = View.VISIBLE
+      showView.animate().alpha(1f).setDuration(duration)
       hideView.animate().alpha(0f).setDuration(duration).withEndAction {
         hideView.alpha = 1f
         hideView.visibility = View.GONE
       }
     }
   }
-
-  companion object {
-    private const val DEFAULT_DURATION: Long = 600
-  }
 }