集成了环信3.0 但是看不到聊天气泡，而且点击进入时导航栏是正常的但是退出聊天界面后点击toolbar导航栏就变成环信的导航栏了

如果[[EaseBaseMessageCell appearance] setSendBubbleBackgroundImage:[[UIImage imageNamed:@"EaseUIResource.bundle/chat_sender_bg"] stretchableImageWithLeftCapWidth:5 topCapHeight:35]];

    [[EaseBaseMessageCell appearance] setRecvBubbleBackgroundImage:[[UIImage imageNamed:@"EaseUIResource.bundle/chat_receiver_bg"] stretchableImageWithLeftCapWidth:35 topCapHeight:35]];  
这两行设置气泡的代码在聊天页面viewdidload都有了，那就加下Resource图片资源。