From ffc0fcd3ec294a3ee01c799c14ffec1f282a600e Mon Sep 17 00:00:00 2001
From: Adriano Dias <adrianodiasx93@gmail.com>
Date: Thu, 18 May 2017 01:04:49 -0300
Subject: [PATCH] Added method to allows moving to previous page.

---
 Source/OnboardingViewController.h | 5 +++++
 Source/OnboardingViewController.m | 8 ++++++++
 2 files changed, 13 insertions(+)

diff --git a/Source/OnboardingViewController.h b/Source/OnboardingViewController.h
index 2f73d67..adbf124 100644
--- a/Source/OnboardingViewController.h
+++ b/Source/OnboardingViewController.h
@@ -135,4 +135,9 @@
  */
 - (void)moveNextPage;
 
+/**
+ * @brief Method to tell the onboarding view controller to automatically move to the previous page.
+ */
+- (void)movePreviousPage;
+
 @end
diff --git a/Source/OnboardingViewController.m b/Source/OnboardingViewController.m
index 1c50a98..0fb370f 100644
--- a/Source/OnboardingViewController.m
+++ b/Source/OnboardingViewController.m
@@ -312,6 +312,14 @@ - (void)moveNextPage {
     }
 }
 
+- (void)movePreviousPage {
+    NSInteger indexOfNextPage = [self.viewControllers indexOfObject:_currentPage] - 1;
+
+    if (indexOfNextPage >= 0) {
+        [self.pageVC setViewControllers:@[self.viewControllers[indexOfNextPage]] direction:UIPageViewControllerNavigationDirectionReverse animated:YES completion:nil];
+        [self.pageControl setCurrentPage:indexOfNextPage];
+    }
+}
 
 #pragma mark - Onboarding content view controller delegate