add is active check to groups

Author: nplasterer

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

@@ -113,6 +113,19 @@ class GroupTest {
         )
     }
 
+    @Test
+    fun testIsActiveReturnsCorrectly() {
+        val group = boClient.conversations.newGroup(
+            listOf(
+                alix.walletAddress,
+                caro.walletAddress
+            )
+        )
+        assert(group.isActive())
+        group.removeMembers(listOf(bo.walletAddress))
+        assert(!group.isActive())
+    }
+
     @Test
     fun testCanListGroups() {
         boClient.conversations.newGroup(listOf(alix.walletAddress))

library/src/main/java/org/xmtp/android/library/Group.kt

@@ -128,6 +128,10 @@ class Group(val client: Client, private val libXMTPGroup: FfiGroup) {
         )
     }
 
+    fun isActive(): Boolean {
+        return libXMTPGroup.isActive()
+    }
+
     fun addMembers(addresses: List<String>) {
         runBlocking { libXMTPGroup.addMembers(addresses) }
     }