修改导航页推出登录就会重新出现的问题

RvClient/src/main/java/com/xxfc/rv/WelcomeActivity.java

 package com.xxfc.rv;
 
 import android.content.Intent;
+import android.content.SharedPreferences;
 import android.os.Bundle;
 import android.support.annotation.Nullable;
 import android.text.TextUtils;
@@ -81,8 +82,9 @@ public class WelcomeActivity extends BaseActivity<CommonPresenter> {
                             e.printStackTrace();
                         }
 
-                        if (Cookie.getBooleanValue(mActivity, "firstOpen", true)) {
-                            Cookie.save(mActivity, "firstOpen", false);
+                        SharedPreferences preferences = getSharedPreferences("first_open", MODE_PRIVATE);
+                        if (preferences.getBoolean("first", true)) {
+                            preferences.edit().putBoolean("first", false).commit();
                             startActivity(GuideActivity.getIntent(mActivity));
                         } else {
                             startActivity(MainActivity.getIntent(mActivity));