Distribute views vertically.

lisbakke · Jul 16, 2015 · 4bc78aa · 4bc78aa
1 parent 57eb3ff
commit 4bc78aa
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Showing 2 changed files with 29 additions and 0 deletions.
diff --git a/FLKAutoLayout/UIView+FLKAutoLayout.h b/FLKAutoLayout/UIView+FLKAutoLayout.h
@@ -73,4 +73,6 @@ FOUNDATION_EXTERN NSString * const FLKNoConstraint;
 + (NSArray*)flk_distributeCenterYOfViews:(NSArray *)views inView:(UIView*)inView;
 
 + (void)flk_spaceOutViewsHorizontally:(NSMutableArray *)array inView:(UIView *)view;
+
++ (void)flk_spaceOutViewsVertically:(NSArray *)array inView:(UIView *)view;
 @end
diff --git a/FLKAutoLayout/UIView+FLKAutoLayout.m b/FLKAutoLayout/UIView+FLKAutoLayout.m
@@ -306,4 +306,31 @@ + (void)flk_spaceOutViewsHorizontally:(NSMutableArray *)array inView:(UIView *)v
   }
 }
 
++ (void)flk_spaceOutViewsVertically:(NSArray *)array inView:(UIView *)view {
+  UIView *previousSpacer;
+  UIView *firstSpacer;
+  for (NSUInteger i = 0; i < array.count; i++) {
+    UIView *spaceView = array[i];
+    if (!previousSpacer) {
+      previousSpacer = [UIView new];
+      [view addSubview:previousSpacer];
+      [previousSpacer flk_alignLeading:@"0" trailing:@"0" toView:spaceView];
+      [previousSpacer flk_alignTopEdgeWithView:view predicate:@"0"];
+      [previousSpacer flk_constrainHeight:@"10@1"];
+      firstSpacer = previousSpacer;
+    }
+    [spaceView flk_constrainTopSpaceToView:previousSpacer predicate:@"0"];
+
+    UIView *trailingSpacer = [UIView new];
+    [view addSubview:trailingSpacer];
+    [trailingSpacer flk_alignLeading:@"0" trailing:@"0" toView:spaceView];
+    [trailingSpacer flk_constrainTopSpaceToView:spaceView predicate:@"0"];
+    [trailingSpacer flk_constrainHeightToView:firstSpacer predicate:@"0"];
+
+    if (i == array.count - 1) {
+      [trailingSpacer flk_alignBottomEdgeWithView:view predicate:@"0"];
+    }
+    previousSpacer = trailingSpacer;
+  }
+}
 @end