update

OneToOne/src/main/java/com/shayu/onetoone/activity/EndCallActivity.java

@@ -91,4 +91,8 @@ public class EndCallActivity extends AbsOTOActivity {
                 });
     }
 
+    @Override
+    public void onBackPressed() {
+        super.onBackPressed();
+    }
 }

OneToOne/src/main/java/com/shayu/onetoone/activity/MainActivity.java

@@ -69,6 +69,7 @@ public class MainActivity extends AbsOTOActivity {
     List<BaseFragment> fragments = new ArrayList<>();
     private ViewPager2 viewPager;
     private DslTabLayout dslTabLayout;
+    private long mLastClickBackTime;//上次点击back键的时间
 
     @Override
     protected void onDestroy() {
@@ -256,6 +257,17 @@ public class MainActivity extends AbsOTOActivity {
         return R.layout.activity_main;
     }
 
+    @Override
+    public void onBackPressed() {
+        long curTime = System.currentTimeMillis();
+        if (curTime - mLastClickBackTime > 2000) {
+            mLastClickBackTime = curTime;
+            ToastUtil.show(R.string.main_click_next_exit);
+            return;
+        }
+        super.onBackPressed();
+    }
+
     @Subscribe(threadMode = ThreadMode.MAIN)
     public void busEvent(MessageMsgBusEvent event) {
         if (event.getType() == MessageMsgBusEvent.TYPE_ALL_READ) {

OneToOne/src/main/java/com/shayu/onetoone/activity/fragments/message/MsgFriendFragment.java

@@ -182,6 +182,9 @@ public class MsgFriendFragment extends BaseFragment implements BaseAdapter.OnIte
                         RongIMClient.getInstance().getConversation(Conversation.ConversationType.PRIVATE, item.getId() + "", new RongIMClient.ResultCallback<Conversation>() {
                             @Override
                             public void onSuccess(Conversation conversation) {
+                                if(conversation==null){
+                                    conversation=new Conversation();
+                                }
                                 SingleConversation singleConversation = new SingleConversation(mContext, conversation);
                                 if (StringUtil.isEmpty(singleConversation.mConversationContent.toString())) {
                                     singleConversation.mConversationContent = new SpannableString("你们什么都没聊");