From 8e855bd3756e99fdad406ab436cd1aea7816c684 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Rafa=C5=82=20Borcz?= <RafalBO99@outlook.com>
Date: Mon, 7 May 2018 18:18:05 +0200
Subject: [PATCH] Save current tab position in exams (#102)

---
 .../wulkanowy/ui/main/exams/ExamsFragment.java       | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/app/src/main/java/io/github/wulkanowy/ui/main/exams/ExamsFragment.java b/app/src/main/java/io/github/wulkanowy/ui/main/exams/ExamsFragment.java
index 9ac06b1e2..cab3b902e 100644
--- a/app/src/main/java/io/github/wulkanowy/ui/main/exams/ExamsFragment.java
+++ b/app/src/main/java/io/github/wulkanowy/ui/main/exams/ExamsFragment.java
@@ -21,6 +21,8 @@ import io.github.wulkanowy.ui.main.OnFragmentIsReadyListener;
 
 public class ExamsFragment extends BaseFragment implements ExamsContract.View {
 
+    private static final String CURRENT_ITEM_KEY = "CurrentItem";
+
     @BindView(R.id.exams_fragment_viewpager)
     ViewPager viewPager;
 
@@ -43,6 +45,10 @@ public class ExamsFragment extends BaseFragment implements ExamsContract.View {
             component.inject(this);
             setButterKnife(ButterKnife.bind(this, view));
             presenter.onStart(this, (OnFragmentIsReadyListener) getActivity());
+
+            if (savedInstanceState != null) {
+                presenter.setRestoredPosition(savedInstanceState.getInt(CURRENT_ITEM_KEY));
+            }
         }
         return view;
     }
@@ -92,6 +98,12 @@ public class ExamsFragment extends BaseFragment implements ExamsContract.View {
         tabLayout.setupWithViewPager(viewPager);
     }
 
+    @Override
+    public void onSaveInstanceState(Bundle outState) {
+        outState.putInt(CURRENT_ITEM_KEY, viewPager.getCurrentItem());
+        super.onSaveInstanceState(outState);
+    }
+
     @Override
     public void onDestroyView() {
         super.onDestroyView();