Autolayout on pages from Xib added

Author: ealeksandrov

EAIntroView/EAIntroPage.m

@@ -57,6 +57,7 @@ + (instancetype)pageWithCustomViewFromNibNamed:(NSString *)nibName {
 + (instancetype)pageWithCustomViewFromNibNamed:(NSString *)nibName bundle:(NSBundle*)aBundle {
     EAIntroPage *newPage = [[self alloc] init];
     newPage.customView = [[aBundle loadNibNamed:nibName owner:newPage options:nil] firstObject];
+    [newPage.customView setTranslatesAutoresizingMaskIntoConstraints:NO];
     return newPage;
 }
 

EAIntroView/EAIntroView.m

@@ -321,9 +321,17 @@ - (void)buildScrollView {
 - (UIView *)viewForPage:(EAIntroPage *)page atXIndex:(CGFloat)xIndex {
     UIView *pageView = [[UIView alloc] initWithFrame:CGRectMake(xIndex, 0, self.scrollView.frame.size.width, self.scrollView.frame.size.height)];
 
+    pageView.accessibilityLabel = [NSString stringWithFormat:@"intro_page_%lu",(unsigned long)[self.pages indexOfObject:page]];
+    
     if(page.customView) {
-        page.customView.frame = pageView.bounds;
         [pageView addSubview:page.customView];
+        
+        NSMutableArray *constraints = @[].mutableCopy;
+        [constraints addObjectsFromArray:[NSLayoutConstraint constraintsWithVisualFormat:@"H:|-[customView]-|" options:0 metrics:nil views:@{@"customView": page.customView}]];
+        [constraints addObjectsFromArray:[NSLayoutConstraint constraintsWithVisualFormat:@"V:|-[customView]-|" options:0 metrics:nil views:@{@"customView": page.customView}]];
+        
+        [pageView addConstraints:constraints];
+        
         return pageView;
     }
 
@@ -391,8 +399,6 @@ - (UIView *)viewForPage:(EAIntroPage *)page atXIndex:(CGFloat)xIndex {
         }
     }
 
-    pageView.accessibilityLabel = [NSString stringWithFormat:@"intro_page_%lu",(unsigned long)[self.pages indexOfObject:page]];
-    
     if(page.alpha < 1.f || !page.bgImage) {
         self.backgroundColor = [UIColor clearColor];
     }