会话界面支持根据会话类型过滤. fix #493

Author: imndx

uikit/src/main/java/cn/wildfire/chat/kit/conversationlist/ConversationListFragment.java

@@ -73,8 +73,7 @@ public void onResume() {
 
     private void init() {
         adapter = new ConversationListAdapter(this);
-        conversationListViewModel = ViewModelProviders
-            .of(getActivity(), new ConversationListViewModelFactory(types, lines))
+        conversationListViewModel = new ViewModelProvider(this, new ConversationListViewModelFactory(types, lines))
             .get(ConversationListViewModel.class);
         conversationListViewModel.conversationListLiveData().observe(this, conversationInfos -> {
             showContent();

uikit/src/main/java/cn/wildfire/chat/kit/conversationlist/viewholder/ConversationViewHolder.java

@@ -72,7 +72,7 @@ public ConversationViewHolder(Fragment fragment, RecyclerView.Adapter adapter, V
         this.adapter = adapter;
         ButterKnife.bind(this, itemView);
         conversationListViewModel = ViewModelProviders
-            .of(fragment.getActivity(), new ConversationListViewModelFactory(Arrays.asList(Conversation.ConversationType.Single, Conversation.ConversationType.Group), Arrays.asList(0)))
+            .of(fragment, new ConversationListViewModelFactory(Arrays.asList(Conversation.ConversationType.Single, Conversation.ConversationType.Group), Arrays.asList(0)))
             .get(ConversationListViewModel.class);
     }