/** 根据 targetid 和 ConversationType 进入到设置页面 */
  private void enterSettingActivity() {

    if (mConversationType == Conversation.ConversationType.PUBLIC_SERVICE
        || mConversationType == Conversation.ConversationType.APP_PUBLIC_SERVICE) {

      RongIM.getInstance().startPublicServiceProfile(this, mConversationType, targetId);
    } else {
      // 通过targetId 和 会话类型 打开指定的设置页面
      if (!TextUtils.isEmpty(targetId)) {

        Uri uri =
            Uri.parse("demo://" + getApplicationInfo().packageName)
                .buildUpon()
                .appendPath("conversationSetting")
                .appendPath(mConversationType.getName())
                .appendQueryParameter("targetId", targetId)
                .build();

        Intent intent = new Intent(Intent.ACTION_VIEW);
        intent.setData(uri);
        startActivity(intent);
        // 当你刚刚创建完讨论组以后获得的是 targetIds
      } else if (!TextUtils.isEmpty(targetIds)) {

        UriFragment fragment = (UriFragment) getSupportFragmentManager().getFragments().get(0);
        fragment.getUri();
        // 得到讨论组的 targetId
        targetId = fragment.getUri().getQueryParameter("targetId");

        if (!TextUtils.isEmpty(targetId)) {
          Uri uri =
              Uri.parse("demo://" + getApplicationInfo().packageName)
                  .buildUpon()
                  .appendPath("conversationSetting")
                  .appendPath(mConversationType.getName())
                  .appendQueryParameter("targetId", targetId)
                  .build();

          Intent intent = new Intent(Intent.ACTION_VIEW);
          intent.setData(uri);
          startActivity(intent);
        } else {
          WinToast.toast(RongActivity.this, "讨论组尚未创建成功");
        }
      }
    }
  }
 public void startConversationSystem(
     Context context,
     Conversation.ConversationType conversationType,
     String targetId,
     String title) {
   if (context != null && !TextUtils.isEmpty(targetId) && conversationType != null) {
     if (RongContext.getInstance() == null) {
       throw new ExceptionInInitializerError("RongCloud SDK not init");
     } else {
       Uri uri =
           Uri.parse("rong://" + context.getApplicationInfo().processName + ".system")
               .buildUpon()
               .appendPath("conversation")
               .appendPath(conversationType.getName().toLowerCase())
               .appendQueryParameter("targetId", targetId)
               .appendQueryParameter("title", title)
               .build();
       context.startActivity(new Intent("android.intent.action.VIEW", uri));
     }
   } else {
     throw new IllegalArgumentException();
   }
 }