Animate the attachment open/close button

vector/src/main/java/im/vector/app/features/attachments/AttachmentTypeSelectorView.kt

@@ -84,7 +84,21 @@ class AttachmentTypeSelectorView(context: Context,
         }
     }
 
+    private fun animateOpen() {
+        views.attachmentCloseButton.animate()
+                .setDuration(200)
+                .rotation(135f)
+    }
+
+    private fun animateClose() {
+        views.attachmentCloseButton.animate()
+                .setDuration(200)
+                .rotation(0f)
+    }
+
     fun show(anchor: View) {
+        animateOpen()
+
         this.anchor = anchor
         val anchorCoordinates = IntArray(2)
         anchor.getLocationOnScreen(anchorCoordinates)
@@ -96,6 +110,8 @@ class AttachmentTypeSelectorView(context: Context,
     }
 
     override fun dismiss() {
+        animateClose()
+
         val capturedAnchor = anchor
         if (capturedAnchor != null) {
             animateWindowOutCircular(capturedAnchor, contentView)

vector/src/main/res/drawable/ic_attachment_close.xml

@@ -1,15 +0,0 @@
-<vector xmlns:android="http://schemas.android.com/apk/res/android"
-    android:width="32dp"
-    android:height="32dp"
-    android:viewportWidth="36"
-    android:viewportHeight="36">
-  <path
-      android:pathData="M18,18m-0,-18a18,18 0,1 1,-0 36a18,18 0,1 1,-0 -36"
-      android:fillColor="?vctr_content_quinary"/>
-  <path
-      android:pathData="M13.521,23.4807L23.067,13.9348M13.521,13.9348L23.067,23.4807"
-      android:strokeWidth="2"
-      android:fillColor="#00000000"
-      android:strokeColor="?vctr_content_secondary"
-      android:strokeLineCap="round"/>
-</vector>

vector/src/main/res/layout/view_attachment_type_selector.xml

@@ -1,6 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="@dimen/composer_min_height"
     android:background="?android:colorBackground">
@@ -12,10 +13,11 @@
         android:layout_margin="@dimen/composer_attachment_margin"
         android:background="@null"
         android:contentDescription="@string/action_close"
-        android:src="@drawable/ic_attachment_close"
+        android:src="@drawable/ic_attachment"
         app:layout_constraintBottom_toBottomOf="parent"
         app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toTopOf="parent" />
+        app:layout_constraintTop_toTopOf="parent"
+        tools:rotation="135" />
 
     <HorizontalScrollView
         android:layout_width="0dp"