diff --git a/app/build.gradle.kts b/app/build.gradle.kts
index 4133a11..7f2a5dc 100644
--- a/app/build.gradle.kts
+++ b/app/build.gradle.kts
@@ -107,4 +107,7 @@ dependencies {
 
     //video decode
     implementation("io.coil-kt:coil-video:2.6.0")
+
+    // 依據你專案中使用的 coil 版本（例如 2.x.x），補上 gif 支援庫
+    implementation("io.coil-kt:coil-gif:2.6.0") // 版本號請與你現有的 coil 保持一致
 }
\ No newline at end of file
diff --git a/app/src/main/java/com/example/login_v3/home/Message/UI/Detail/Message_Messaging.kt b/app/src/main/java/com/example/login_v3/home/Message/UI/Detail/Message_Messaging.kt
index ab45c09..ab40f65 100644
--- a/app/src/main/java/com/example/login_v3/home/Message/UI/Detail/Message_Messaging.kt
+++ b/app/src/main/java/com/example/login_v3/home/Message/UI/Detail/Message_Messaging.kt
@@ -597,6 +597,9 @@ fun MessageRow(
     val isImage = isAttachmentImage || isLegacyImage
     val rawContent = message.content ?: ""
 
+    // 新增一個專門用來判斷是否為 GIF 的布林值
+    val isGif = message.attachment?.mimeType == "image/gif" || contentLowerCase.endsWith(".gif")
+
     // 🌟 2. 影片判斷
     val isAttachmentVideo = message.attachment?.mimeType?.startsWith("video/") == true
     val videoExtensions = listOf(".mp4", ".mov", ".mkv", ".avi", ".3gp", ".webm")