add dates to example and a test around removing members

Author: nplasterer

example/src/main/java/org/xmtp/android/example/message/MessageViewHolder.kt

@@ -11,8 +11,9 @@ import org.xmtp.android.example.R
 import org.xmtp.android.example.conversation.ConversationDetailViewModel
 import org.xmtp.android.example.databinding.ListItemMessageBinding
 import org.xmtp.android.example.extension.margins
-import org.xmtp.proto.mls.message.contents.TranscriptMessages
 import uniffi.xmtpv3.org.xmtp.android.library.codecs.GroupMembershipChanges
+import java.text.SimpleDateFormat
+import java.util.Locale
 
 class MessageViewHolder(
     private val binding: ListItemMessageBinding,
@@ -45,6 +46,9 @@ class MessageViewHolder(
         binding.messageContainer.layoutParams = params
         if (item.message.content<Any>() is String) {
             binding.messageBody.text = item.message.body
+            val sdf = SimpleDateFormat("yyyy-MM-dd HH:mm:ss", Locale.getDefault())
+            binding.messageDate.text = sdf.format(item.message.sent)
+
         } else if (item.message.content<Any>() is GroupMembershipChanges) {
             val changes = item.message.content() as? GroupMembershipChanges
             binding.messageBody.text =

example/src/main/res/layout/list_item_message.xml

@@ -15,13 +15,25 @@
         app:cardCornerRadius="8dp"
         app:layout_constraintTop_toTopOf="parent"
         tools:ignore="MissingConstraints">
-
-        <TextView
-            android:id="@+id/messageBody"
+        <LinearLayout
             android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:textSize="16sp"
-            android:layout_margin="8dp" />
+            android:layout_height="wrap_content">
+            <TextView
+                android:id="@+id/messageBody"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:textSize="16sp"
+                android:layout_margin="8dp" />
+            <TextView
+                android:id="@+id/messageDate"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:textSize="16sp"
+                android:layout_margin="8dp"
+                />
+        </LinearLayout>
+
+
 
     </androidx.cardview.widget.CardView>
 

library/src/androidTest/java/org/xmtp/android/library/GroupTest.kt

@@ -112,6 +112,26 @@ class GroupTest {
         )
     }
 
+    @Test
+    fun testCanRemoveGroupMembersWhenNotCreator() {
+        boClient.conversations.newGroup(
+            listOf(
+                alix.walletAddress,
+                caro.walletAddress
+            )
+        )
+        runBlocking { alixClient.conversations.syncGroups() }
+        val group = alixClient.conversations.listGroups().first()
+        group.removeMembers(listOf(caro.walletAddress))
+        assertEquals(
+            group.memberAddresses().sorted(),
+            listOf(
+                alix.walletAddress.lowercase(),
+                bo.walletAddress.lowercase()
+            ).sorted()
+        )
+    }
+
     @Test
     fun testIsActiveReturnsCorrectly() {
         val group = boClient.conversations.newGroup(